Electronic device for controlling target power according to input power of power supply circuit and control method thereof

Abstract

An electronic device is disclosed. The electronic device comprises: a cooking plate on which a cooking vessel can be placed; an induction heating coil which induces a magnetic field on the cooking plate; a power supply circuit which supplies power to the induction heating coil; a memory in which at least one instruction is stored; and a processor which controls the power supply circuit on the basis of the at least one stored instruction, wherein the processor: controls the power supply circuit on the basis of first target power for heating the cooking vessel; and if the difference between first input power of the power supply circuit and the first target power is equal to or greater than a predetermined value, controls the power supply circuit on the basis of second target power corresponding to the first input power of the power supply circuit.

Description

Electronic device for controlling target power according to input power of power supply circuit and control method thereof

[0001] The present disclosure relates to an electronic device and a control method thereof. More particularly, the present disclosure relates to an electronic device that controls target power according to the input power of a power supply circuit, and a control method thereof.

[0002] An induction heating device is a cooking device that heats and cooks food using the principles of induction heating. It comprises a cooking plate on which a cooking vessel is placed, a power supply circuit that supplies current to a coil, and a coil that generates a magnetic field when the current is applied.

[0003] When a current is applied to the coil and a magnetic field is generated, a secondary current is induced in the cooking vessel, and Joule heat is generated due to the resistance component of the cooking vessel itself.

[0004] Therefore, the cooking vessel is heated by the induced current, and the food contained within is cooked. Since the cooking vessel itself acts as a heat source in an induction heating system, the cooking vessel can be made of metals such as iron, stainless steel, or nickel.

[0005] The above information is provided as background information to aid in understanding the present disclosure. The above information is not determined or claimed to be prior art to the present disclosure.

[0006] Aspects of the present disclosure address at least the problems and / or disadvantages described above, and provide at least the advantages described below. Accordingly, one embodiment of the present disclosure provides an electronic device and a control method thereof that controls target power according to the input power of a power supply circuit.

[0007] Additional aspects will be partly described in the description below, partly will become apparent from the description below, and may be learned by practice of the presented embodiments.

[0008] An electronic device according to one aspect of the present disclosure is provided. The electronic device includes a user interface; a cooking plate on which a cooking vessel can be placed; an induction heating coil for inducing a magnetic field on the cooking plate; a power supply circuit for supplying power to the induction heating coil; a memory for storing at least one instruction; and a processor for controlling the power supply circuit based on the stored at least one instruction; wherein when computer-executable instructions included in the one or more computer programs are executed, the one or more processors control the power supply circuit based on a first target power corresponding to an operation step input by a user through the user interface, and when a difference between a first input power of the power supply circuit and the first target power is equal to or greater than a preset value, the power supply circuit is controlled based on a second target power corresponding to the first input power of the power supply circuit.

[0009] A method for controlling an electronic device according to one aspect of the present disclosure is provided. The method for controlling an electronic device includes: a step of controlling a power supply circuit based on a first target power corresponding to an operation step input by a user; and a step of controlling the power supply circuit based on a second target power corresponding to the first input power of the power supply circuit if a difference between the first input power of the power supply circuit and the first target power is greater than or equal to a preset value.

[0010] A non-transitory computer-readable recording medium is provided, which includes a program for executing a control method of an electronic device according to one aspect of the present disclosure. The control method includes: a step of controlling a power supply circuit based on a first target power corresponding to an operation step input by a user; and a step of controlling the power supply circuit based on a second target power corresponding to the first input power of the power supply circuit if a difference between the first input power of the power supply circuit and the first target power is greater than or equal to a preset value.

[0011] Other aspects, advantages and salient features of the present disclosure will become apparent to those skilled in the art from the following detailed description of various embodiments of the present disclosure taken in conjunction with the accompanying drawings.

[0012] Aspects of specific embodiments of the present disclosure and other aspects will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0013] FIG. 1 is a block diagram illustrating the configuration of an electronic device according to one embodiment of the present disclosure.

[0014] FIG. 2 is a drawing for explaining the appearance of an electronic device according to one embodiment of the present disclosure.

[0015] FIG. 3 is a drawing for explaining the interior of an electronic device according to one embodiment of the present disclosure.

[0016] FIG. 4A and FIG. 4B are drawings for explaining a power supply circuit according to various embodiments of the present disclosure.

[0017] FIG. 5 is a flowchart illustrating a method for controlling input power of a power supply circuit (150) in an electronic device according to one embodiment of the present disclosure.

[0018] FIGS. 6A, 6B, and 6C are diagrams illustrating information stored in a memory according to various embodiments of the present disclosure.

[0019] FIGS. 7A, 7B, 7C, 7D, 7E, and 7F are flowcharts illustrating a method for controlling a power supply circuit according to whether a preset condition is satisfied by an electronic device according to an embodiment of the present disclosure.

[0020] FIG. 8 is a diagram for explaining a method for controlling input power by an electronic device according to one embodiment of the present disclosure.

[0021] FIGS. 9, 10A, and 10B are diagrams illustrating a method for an electronic device to readjust target power according to a temperature of a power supply circuit, according to various embodiments of the present disclosure.

[0022] FIG. 11 is a flowchart illustrating a method for an electronic device to readjust target power according to one embodiment of the present disclosure.

[0023] FIG. 12 is a flowchart illustrating a method for an electronic device according to one embodiment of the present disclosure to provide information indicating that a target power or operating phase has been adjusted.

[0024] FIGS. 13A and 13B are diagrams illustrating a method for an electronic device according to various embodiments of the present disclosure to provide information indicating that a target power or operating phase of a power supply circuit has been adjusted.

[0025] FIGS. 14 and 15 are diagrams illustrating how an electronic device according to various embodiments of the present disclosure operates when a user input for readjusting an operation step (or target power) is obtained.

[0026] FIG. 16 is a flowchart for explaining a control method of an electronic device according to one embodiment of the present disclosure.

[0027] Identical reference numbers are used throughout the drawing to represent identical elements.

[0028] The following description, with reference to the attached drawings, is provided to facilitate a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. While it includes numerous specific details to aid understanding, these are merely illustrative. Accordingly, those skilled in the art will recognize that variations and modifications to the various embodiments described herein may be possible without departing from the scope and spirit of the present disclosure. Furthermore, descriptions of known functions and configurations may be omitted for clarity and conciseness.

[0029] The terms and words used in the following description and claims are not limited to their literary meanings, but are merely used by the inventors to enable a clear and consistent understanding of the present disclosure. Accordingly, it will be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustrative purposes only and is not intended to limit the present disclosure as defined by the appended claims and their equivalents.

[0030] The singular forms "a," "an," and "the" should be understood to include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes one or more surfaces.

[0031] In this disclosure, expressions such as “has,” “can have,” “includes,” or “may include” indicate the presence of a corresponding feature (e.g., a component such as a number, function, operation, or part), and do not exclude the presence of additional features.

[0032] In this disclosure, expressions such as “A or B,” “at least one of A and / or B,” or “one or more of A or / and B” can include all possible combinations of the listed items. For example, “A or B,” “at least one of A and B,” or “at least one of A or B” can all refer to (1) including at least one A, (2) including at least one B, or (3) including both at least one A and at least one B.

[0033] The expressions “first,” “second,” “first,” or “second,” etc., used in this disclosure can describe various components, regardless of order and / or importance, and are only used to distinguish one component from another, but do not limit the components.

[0034] When it is said that a component (e.g., a first component) is “(operatively or communicatively) coupled with / to” or “connected to” another component (e.g., a second component), it should be understood that said component may be directly coupled to said other component, or may be coupled via another component (e.g., a third component).

[0035] On the other hand, when it is said that a component (e.g., a first component) is "directly connected" or "directly connected" to another component (e.g., a second component), it can be understood that no other component (e.g., a third component) exists between said component and said other component.

[0036] The expression "configured to" used in the present disclosure may be used interchangeably with, for example, "suitable for," "having the capacity to," "designed to," "adapted to," "made to," or "capable of." The term "configured to" may not necessarily mean only "specifically designed to" in terms of hardware.

[0037] Instead, in some contexts, the phrase "a device configured to" may mean that the device, in conjunction with other devices or components, is "capable of" performing A, B, and C. For example, the phrase "a processor configured (or set) to perform A, B, and C" may refer to a dedicated processor (e.g., an embedded processor) for performing those operations, or a general-purpose processor (e.g., a CPU or application processor) that can perform those operations by executing one or more software programs stored in a memory device.

[0038] In the embodiments, a 'module' or 'part' performs at least one function or operation, and may be implemented as hardware or software, or as a combination of hardware and software. Furthermore, a plurality of 'modules' or 'parts' may be integrated into at least one module and implemented as at least one processor, except for a 'module' or 'part' that needs to be implemented as a specific hardware.

[0039] Meanwhile, the various elements and areas in the drawings are schematically drawn. Therefore, the technical concept of the present invention is not limited by the relative sizes or spacing depicted in the attached drawings.

[0040] Hereinafter, with reference to the attached drawings, embodiments according to the present disclosure will be described in detail so that a person having ordinary knowledge in the technical field to which the present disclosure pertains can easily implement the present disclosure.

[0041] It can be appreciated that the blocks and combinations of the flowcharts in each flowchart can be performed by one or more computer programs containing computer-executable instructions. The one or more computer programs may be stored entirely on a single memory device, or the one or more computer programs may be divided into different portions stored on multiple different memory devices.

[0042] Any function or operation described herein may be processed by a single processor or a combination of processors. A single processor or a combination of processors includes circuitry that performs processing, and such circuitry may include circuitry such as an application processor (AP, e.g., a central processing unit (CPU)), a communication processor (CP, e.g., a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a wireless-fidelity (Wi-Fi) chip, a Bluetooth™ chip, a global positioning system (GPS) chip, a near-field communication (NFC) chip, a connectivity chip, a sensor controller, a touch controller, a fingerprint sensor controller, a display driver integrated circuit (IC), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on a chip (SoC), an IC, and the like.

[0043] FIG. 1 is a block diagram illustrating the configuration of an electronic device according to one embodiment of the present disclosure.

[0044] Referring to FIG. 1, the electronic device (100) may include a memory (110), a communication interface (120), a user interface (130), a display (140), a power supply circuit (150), a sensor (160), an induction heating coil (170), and a processor (180). Some of the above components may be omitted from the electronic device (100). In addition, the electronic device (100) may further include other components.

[0045] The electronic device (100) may be a cooking device for heating food. For example, the electronic device (100) may be implemented as an induction heating device such as an induction cooktop, but is not limited thereto, and may be implemented as various types of cooking devices.

[0046] Alternatively, the electronic device (100) may be a device for communicating with and controlling the cooking device. At this time, the electronic device (100) may be implemented in various forms, such as a smartphone, a server, a TV, a smart TV, a set-top box, a mobile phone, a PDA (personal digital assistant), a laptop, a media player, an e-book reader, a digital broadcasting terminal, a navigation device, a kiosk, an MP3 (moving picture experts group (MPEG) audio layer 3) player, a wearable device, a home appliance, and other mobile or non-mobile computing devices.

[0047] Alternatively, the electronic device (100) may be a power supply device for supplying power to an external device. For example, the electronic device (100) may be a wireless power supply device, such as a wireless charging device that wirelessly charges an external device, but is not limited thereto.

[0048] The memory (110) can store at least one instruction regarding the electronic device (100). The memory (110) can store an operating system (O / S) for driving the electronic device (100). In addition, the memory (110) can store various software programs or applications for operating the electronic device (100) according to various embodiments of the present disclosure. In addition, the memory (110) can include a semiconductor memory such as a flash memory or a magnetic storage medium such as a hard disk.

[0049] Specifically, the memory (110) can store various software modules for operating the electronic device (100) according to various embodiments of the present disclosure, and the processor (180) can control the operation of the electronic device (100) by executing various software modules stored in the memory (110). For example, the memory (110) is accessed by the processor (180), and data reading / recording / modifying / deleting / updating, etc. can be performed by the processor (180).

[0050] Meanwhile, in the present disclosure, the term memory (110) may be used to mean a memory (110), a ROM (not shown), a RAM (not shown) in a processor (180), or a memory card (not shown) (e.g., a micro secure digital (SD) card, a memory stick) mounted on an electronic device (100).

[0051] And, the communication interface (120) includes a circuitry and is a configuration capable of communicating with external devices and servers. The communication interface (120) can communicate with external devices or servers based on a wired or wireless communication method. The communication interface (120) may include a Bluetooth module (not shown), a Wi-Fi module (not shown), an IR (infrared) module, a LAN (Local Area Network) module, an Ethernet module, etc. Here, each communication module may be implemented in the form of at least one hardware chip. In addition to the above-described communication method, the wireless communication module may include at least one communication chip that performs communication according to various wireless communication standards such as Zigbee, USB (Universal Serial Bus), MIPI CSI (Mobile Industry Processor Interface Camera Serial Interface), 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), LTE-A (LTE Advanced), 4G (4th Generation), 5G (5th Generation), etc. However, this is only one embodiment, and the communication interface (120) can utilize at least one communication module among various communication modules.

[0052] The user interface (130) may be implemented with devices such as buttons, touch pads, mice, and keyboards, or may be implemented with a touch screen capable of performing both the display function and the operation input function of the display (140) described below. Here, the buttons may be various types of buttons, such as mechanical buttons, touch pads, and wheels formed on any area of ​​the front, side, or back of the main body of the electronic device (100).

[0053] The display (140) may be implemented as a variety of displays such as a Liquid Crystal Display (LCD), an Organic Light Emitting Diodes (OLED) display, a Plasma Display Panel (PDP), etc. The display (140) may also include a driving circuit, a backlight unit, etc., which may be implemented as a form such as an a-si TFT (amorphous silicon thin film transistor), an LTPS (low temperature poly silicon) TFT, an OTFT (organic TFT), etc. Meanwhile, the display (140) may be implemented as a touch screen combined with a touch sensor, a flexible display, a three-dimensional display (3D display, three-dimensional dispaly), etc. In addition, according to an embodiment of the present disclosure, the display (140) may include not only a display panel that outputs an image, but also a bezel that houses the display panel. In particular, according to an embodiment of the present disclosure, the bezel may include a touch sensor (not shown) for detecting user interaction.

[0054] The power supply circuit (150) is a device that converts power input to the power supply circuit (150) and supplies the converted power. The power supply circuit (150) can supply the converted power to the induction heating coil (170). The power supply circuit (150) can include an inverter for converting the input power. In addition, the inverter can include a switching element for controlling the power input to the power supply circuit (150). Specifically, the inverter can include a switching element for controlling the frequency of the current constituting the input power input to the power supply circuit (150).

[0055] The power supply circuit (150) may include a circuit for converting input power, and the circuit for converting input power will be described later with reference to FIGS. 4a and 4b.

[0056] The sensor (160) may include at least one sensor. Specifically, the sensor (160) may include at least one sensor for detecting voltage or current. For example, the sensor (160) may include at least one voltage sensor for detecting voltage constituting input power of the power supply circuit (150), or at least one current sensor for detecting current constituting input power of the power supply circuit (150).

[0057] Alternatively, the sensor (160) may include at least one voltage sensor for detecting a voltage constituting the supply power supplied by the power supply circuit (150) to the induction heating coil (170), or at least one current sensor for detecting a current constituting the supply power supplied by the power supply circuit (150) to the induction heating coil (170).

[0058] Alternatively, the sensor (160) may include at least one sensor for detecting the temperature of a component included in the electronic device (100). For example, the sensor (160) may include at least one temperature sensor for detecting the temperature of a component constituting the power supply circuit (150). For example, the sensor (160) may include a temperature sensor for detecting the temperature of a switching component constituting the power supply circuit (150).

[0059] Alternatively, the sensor (160) may include a sensor for detecting a cooking vessel placed on the cooking plate. For example, the sensor (160) may include at least one weight sensor for detecting a cooking vessel placed on the cooking plate. Alternatively, the sensor (160) may include at least one magnetic sensor for detecting a cooking vessel placed on the cooking plate.

[0060] The induction heating coil (170) can induce a magnetic field for heating a cooking vessel. When power is supplied to the induction heating coil (170) by the power supply circuit (150), a magnetic field can be induced by the electromagnetic induction phenomenon.

[0061] The processor (180) can control the overall operation and function of the electronic device (100). Specifically, the processor (180) is connected to the configuration of the electronic device (100) including the memory (110), and can control the overall operation of the electronic device (100) by executing at least one command stored in the memory (110) as described above.

[0062] The processor (180) may be implemented in various ways. For example, the processor (180) may be implemented as at least one of an Application Specific Integrated Circuit (ASIC), a Logic Integrated Circuit, an embedded processor, a Microcomputer (Micom), a microprocessor, hardware control logic, a hardware Finite State Machine (FSM), and a Digital Signal Processor (DSP). Meanwhile, the term "processor (180)" in the present disclosure may be used to mean a Central Processing Unit (CPU), a Graphic Processing Unit (GPU), an Accelerated Processing Unit (APU), a Many Integrated Core (MIC), a Digital Signal Processor (DSP), a Neural Processing Unit (NPU), and a Main Processing Unit (MPU).

[0063] In particular, the processor (180) may include one or more processors. Specifically, the one or more processors may include one or more of a CPU, a GPU, an APU, a MIC, a DSP, an NPU, an MPU, a hardware accelerator, or a machine learning accelerator. The one or more processors may control one or any combination of other components of the electronic device and perform operations related to communication or data processing. The one or more processors may execute one or more programs or instructions stored in a memory. For example, the one or more processors may perform a method according to an embodiment of the present disclosure by executing one or more instructions stored in a memory.

[0064] When a method according to one or more embodiments of the present disclosure includes multiple operations, the multiple operations may be performed by one processor or by multiple processors. That is, when a first operation, a second operation, and a third operation are performed by a method according to one or more embodiments, the first operation, the second operation, and the third operation may all be performed by the first processor, or the first operation and the second operation may be performed by the first processor (e.g., a general-purpose processor) and the third operation may be performed by the second processor (e.g., an artificial intelligence-specific processor).

[0065] One or more processors may be implemented as a single core processor including one core, or may be implemented as one or more multicore processors including multiple cores (e.g., homogeneous multicores or heterogeneous multicores). When one or more processors are implemented as a multicore processor, each of the multiple cores included in the multicore processor may include internal processor memory, such as cache memory or on-chip memory, and a common cache shared by the multiple cores may be included in the multicore processor. In addition, each of the multiple cores (or some of the multiple cores) included in the multicore processor may independently read and execute program instructions for implementing a method according to one or more embodiments of the present disclosure, or all (or some) of the multiple cores may be linked to read and execute program instructions for implementing a method according to one or more embodiments of the present disclosure.

[0066] When a method according to one or more embodiments of the present disclosure includes a plurality of operations, the plurality of operations may be performed by one core among the plurality of cores included in a multi-core processor, or may be performed by the plurality of cores. For example, when a first operation, a second operation, and a third operation are performed by a method according to one or more embodiments, the first operation, the second operation, and the third operation may all be performed by a first core included in the multi-core processor, or the first operation and the second operation may be performed by a first core included in the multi-core processor, and the third operation may be performed by a second core included in the multi-core processor.

[0067] In embodiments of the present disclosure, the processor (180) may mean a system on a chip (SoC) in which one or more processors and other electronic components are integrated, a single-core processor, a multi-core processor, or a core included in a single-core processor or a multi-core processor, wherein the core may be implemented as a CPU, a GPU, an APU, a MIC, a DSP, an NPU, a hardware accelerator, or a machine learning accelerator, but embodiments of the present disclosure are not limited thereto.

[0068] The operation of the processor (180) for implementing various embodiments of the present disclosure may be implemented through a plurality of modules.

[0069] Specifically, data for a plurality of modules according to the present disclosure can be stored in a memory (110), and the processor (180) can access the memory (110) to load the data for the plurality of modules into a memory or buffer within the processor (180), and then implement various embodiments according to the present disclosure using the plurality of modules.

[0070] However, at least one of the plurality of modules according to the present disclosure may be implemented in hardware and included in the processor (180) in the form of a system on chip.

[0071] Alternatively, at least one of the plurality of modules according to the present disclosure may be implemented as a separate external device, and the electronic device (100) and each module may communicate and perform operations according to the present disclosure.

[0072] FIG. 2 is a drawing illustrating the appearance of an electronic device according to one embodiment of the present disclosure.

[0073] Referring to FIG. 2, the electronic device (100) may include a body (101) that forms the exterior of the electronic device (100) and in which components of the electronic device (100) are installed.

[0074] In addition, a cooking plate (102) having a flat shape on which a cooking container (10) can be placed may be provided on the upper surface (101a) of the main body (101).

[0075] In addition, a user interface (130) capable of receiving control commands from a user and a display (140) capable of displaying operation information of the electronic device (100) may be provided on the upper surface (101a) of the main body (101). However, the positions of the user interface (130) and the display (140) are not limited to the upper surface (101a) of the main body (101), and may be provided in various positions, such as the front or side of the main body (101). In addition, the user interface (130) and the display (140) may be implemented separately as illustrated in FIG. 2, but this is merely one embodiment of the present disclosure, and the display (140) may be implemented as a touch screen and include the user interface (130).

[0076] FIG. 3 is a diagram illustrating the interior of an electronic device according to one embodiment of the present disclosure.

[0077] Referring to FIG. 3, an induction heating coil (170a, 170b, 170c, 170d) for heating a cooking vessel, a circuit board (140a) for implementing a display (140) and a circuit board (130a) for implementing a user interface (130) may be provided at the bottom of the cooking plate (102).

[0078] When current is applied to the induction heating coils (170a, 170b, 170c, 170d), a magnetic field for heating the cooking vessel can be induced by the electromagnetic induction phenomenon. At this time, when an alternating current is supplied to the induction heating coils (170a, 170b, 170c, 170d), a magnetic field whose size and direction change over time can be induced around the coils.

[0079] The induced magnetic field can pass through the cooking plate (102) and reach the cooking vessel (10) placed on the cooking plate (102).

[0080] And, due to the magnetic field induced by the alternating current, an eddy current that rotates around the magnetic field may be generated in the cooking container. Due to the eddy current, heat due to electrical resistance may be generated in the cooking container (10). Heat due to electrical resistance is heat generated in a resistor when current flows through the resistor, and is also called Joule heat. The cooking container (10) is heated by this heat due to electrical resistance, and food contained in the cooking container (10) may be heated.

[0081] In this way, the electronic device (100) can heat the cooking vessel by using the electromagnetic induction phenomenon and heat generated by electrical resistance.

[0082] FIG. 4A and FIG. 4B are drawings for explaining a power supply circuit (150) according to one or more embodiments of the present disclosure.

[0083] Referring to FIG. 4a, the power supply circuit (150) can receive input power from an AC power source (10). Then, the power supply circuit (150) can convert the input power and supply the converted power to the induction heating coil (170).

[0084] The processor (180) can detect the magnitude of the voltage constituting the input power supplied to the power supply circuit (150) through the voltage sensor (160a). The processor (180) can detect the magnitude of the current constituting the input power supplied to the power supply circuit (150) through the current sensor (160b). The processor (180) can detect the magnitude of the voltage constituting the supply power supplied by the power supply circuit (150) to the induction heating coil (170) through the voltage sensor (160c). The processor (180) can detect the magnitude of the current constituting the supply power supplied by the power supply circuit (150) to the induction heating coil (170) through the current sensor (160d).

[0085] Referring to FIG. 4b, the power supply circuit (150) may include a rectifier (151) and an inverter (152). At this time, the rectifier (151) may include a rectifying circuit, and the inverter (152) may include a power conversion circuit.

[0086] When AC power (410) is applied, the rectifier (151) can supply DC power to the inverter (152).

[0087] When direct current power is supplied to the inverter (152), the inverter (152) can convert the direct current power into alternating current power.

[0088] At this time, the inverter (152) may include switching elements (Q1 and Q2) for controlling the frequency of input power or supplied power. At this time, the switching elements may be, but are not limited to, insulated gate bipolar mode transistors.

[0089] Switching elements (Q1, Q2) can be turned on and off complementarily by a switching signal. In addition, capacitors (C1, C2) corresponding to each switching element in the inverter (152) can be connected in parallel to each switching element.

[0090] A voltage sensor (160a) and a current sensor (160b) may be provided at the input terminal of the power supply circuit (150). Accordingly, the voltage sensor (160a) can detect the voltage applied to the power supply circuit (150). In addition, the current sensor (160b) can detect the current supplied to the power supply circuit (150).

[0091] Additionally, a voltage sensor (160c) and a current sensor (160d) may be provided at the output terminal of the power supply circuit (150). Accordingly, the voltage sensor (160c) can detect the magnitude of the voltage supplied by the power supply circuit (150). In addition, the current sensor (160c) can detect the magnitude of the current supplied by the power supply circuit (150).

[0092] Specifically, a voltage sensor (160c) and a current sensor (170d) may be provided in the current path between the connection points of the switching elements (Q1, Q2) and the coil. Accordingly, the voltage sensor (160c) can detect the magnitude of the voltage supplied by the inverter (152) to the induction heating coil (170). In addition, the current sensor (160d) can detect the magnitude of the current supplied by the inverter (152) to the induction heating coil (170).

[0093] The processor (180) can control the on / off cycle of the switching element to control the frequency of the current supplied to the power supply circuit (150) or the frequency of the current supplied to the induction heating coil (170) by the inverter (152).

[0094] Meanwhile, the electronic device (100) may include both a voltage sensor (160a) and a current sensor (160b) for detecting the input power of the power supply circuit (150), as well as a voltage sensor (160c) and a current sensor (160d) for detecting the supply power of the power supply circuit (150), as shown in FIGS. 4a and 4b, but this is only one embodiment, and the electronic device (100) may include at least one of the above-described sensors (160a, 160b, 160c, 160d).

[0095] Hereinafter, with reference to the attached drawings, the operation of a processor (180) according to one or more embodiments of the present disclosure will be described.

[0096] FIG. 5 is a flowchart illustrating a method for controlling input power of a power supply circuit by an electronic device according to one embodiment of the present disclosure.

[0097] Referring to FIG. 5, the processor (180) may obtain a user input for heating a cooking vessel (S510). At this time, the processor (180) may obtain the user input for heating the cooking vessel through the user interface (130) or the communication interface (120).

[0098] The user input may include information about the operation steps (e.g., step 1, step 2, …, step n). Here, the operation steps may mean the amount of power input to the power supply circuit (150), the amount of power supplied by the power supply circuit (150), the strength of the output of the electronic device (100), the strength of the magnetic field generated by the induction heating coil (170), or the degree of heating the cooking vessel.

[0099] At this time, the operating step is not an absolute value, but may be a relative value representing a specific output. For example, the output corresponding to the second step may be greater than the output corresponding to the first step. Furthermore, the output corresponding to the second step may be 400 W, and the output corresponding to the first step may be 200 W.

[0100] Meanwhile, in the present disclosure, the operating steps may be named as output level, power level, power level, heating level, heating intensity, heating degree, output intensity, output degree, etc.

[0101] In addition, the processor (180) can identify a first target power corresponding to the user input. The processor (180) can identify a first target power corresponding to a first operation step included in the user input.

[0102] At this time, the target power corresponding to the operation step included in the user input may be the power stored in the memory (110) that matches the operation step included in the user input.

[0103] FIGS. 6A, 6B, and 6C are diagrams illustrating information stored in a memory according to various embodiments of the present disclosure.

[0104] Referring to FIG. 6A, the memory (110) may store information (610) regarding power corresponding to each of the plurality of operation steps. For example, the memory (110) may store information regarding power matched to each of the plurality of operation steps. In this case, the output matched to operation step 8 may be 1700 W, and the output matched to operation step 9 may be 1800 W.

[0105] In the present disclosure, the target power may refer to a target value of power input to the power supply circuit (150). Alternatively, the target power may refer to a target value of power supplied by the power supply circuit (150) to the induction heating coil (170). For example, the target power may refer to a target value set for the power supply circuit (150) to supply power to the induction heating coil (170).

[0106] And, the processor (180) can control the power supply circuit (150) based on the first target power corresponding to the operation step input by the user (S520).

[0107] Specifically, the processor (180) can control the power supply circuit (150) so that the input power of the power supply circuit (150) becomes the first target power. For example, the processor (180) can control the power supply circuit (150) so that the input power reaches the first target power.

[0108] In the present disclosure, the input power of the power supply circuit (150) may mean power input to the power supply circuit (150).

[0109] The processor (180) can control input power by controlling the operation of elements constituting the circuit included in the power supply circuit (150).

[0110] The processor (180) can increase the input power by increasing the size of the current constituting the input power. The processor (180) can control the operation of the elements constituting the circuit included in the power supply circuit (150).

[0111] For example, the processor (180) can control an inverter included in the power supply circuit (150). Specifically, the processor (180) can control the frequency of the current constituting the input power by controlling the on / off of the switching elements constituting the inverter. Specifically, the processor (180) can control the frequency of the current applied to the inverter (152) by controlling the number of times the switching elements are turned on and off per unit time. In addition, the processor (180) can control the frequency of the current constituting the input power, thereby controlling the magnitude of the current constituting the input power.

[0112] Meanwhile, the processor (180) can increase the input power by controlling the magnitude of the current constituting the input power, but this is only one embodiment of the present disclosure, and the processor (180) can increase the input power by controlling the magnitude of the voltage constituting the input power. In this case, the processor (180) can control the magnitude of the voltage constituting the input power by controlling the operation of the elements constituting the circuit included in the power supply circuit (150).

[0113] For example, the processor (180) can control the size of the voltage that constitutes the input power by using techniques such as PWM (Pulse Width Modulation) and MPPT (Maximum Power Point Tracking).

[0114] Alternatively, the processor (180) may control the input power using a pulse pattern of the input voltage or input current. For example, the processor (180) may control the input power using a pulse pattern of the input voltage or input current. For example, the processor (180) may control the input power using a pattern of supplying power for a certain period of time and cutting off power for a certain period of time.

[0115] The input power of the power supply circuit (150) can be obtained by the following mathematical expression 1.

[0116] Mathematical formula 1

[0117] Input power = input voltage x input current x cosθ

[0118] The input voltage may be the magnitude of the voltage that constitutes the input power of the power supply circuit (150).

[0119] The input current may be the size of the current that constitutes the input power of the power supply circuit (150).

[0120] θ can be the cosine of the power factor angle. Here, the power factor can be a variable that represents efficiency and active power in an electrical system. Here, θ can be the phase difference between the input voltage and the input current.

[0121] The processor (180) can identify the size of the input voltage, the size of the input current, and the phase difference between the input voltage and the input current that constitute the input power through the sensor (160).

[0122] When a cooking vessel is placed in a magnetic field generated by an induction heating coil (170), θ can be determined depending on the characteristics of the cooking vessel. Specifically, the higher the magnetism of the cooking vessel, the closer θ can be to 0. The lower the magnetism of the cooking vessel (10), the closer θ can be to π / 2.

[0123] Therefore, for a specific input voltage and a specific input current, the input power may vary depending on the characteristics of the cooking vessel. For example, as θ approaches π / 2, a higher input voltage or a higher input current may be required for the power supply circuit (150) to receive the target power.

[0124] Accordingly, when a high operating step is input to a cooking vessel having low magnetism (or low conduction efficiency), the input current constituting the input power may reach a threshold current before the input power reaches the target power. Once the input current reaches the threshold current, the threshold current may be continuously applied to the power supply circuit (150).

[0125] If a critical current is continuously applied to the power supply circuit (150), the temperature of the elements constituting the power supply circuit (150) may rise, and the elements may be damaged. Here, the critical current may mean a maximum allowable current, a critical current, or a current that exceeds the maximum allowable current and is lower than the critical current. The maximum allowable current may be the maximum value of the current that can be applied to the power supply circuit (150) within the safety range of the elements constituting the power supply circuit (150). The critical current may be the maximum value of the current that the power supply circuit (150) can apply to the induction heating coil (170) within the safety range of the elements constituting the power supply circuit (150). Before the input power applied to the power supply circuit (150) becomes the target power, the critical current may be applied to the power supply circuit (150). The critical current may vary depending on the operation step or the target step, and information on the critical current according to the operation step or the target step may be stored in the memory (110). For example, the processor (180) can control the power supply circuit (150) to increase the input power until the input power supplied to the power supply circuit (150) reaches the target power or the input current constituting the input power reaches the threshold current. The present disclosure has been made to address the above-described conventional issues, and an object of the present disclosure is to provide an electronic device (100) that readjusts an operation step or target power based on the input power of the power supply circuit (150) and controls the power supply circuit (150) based on the readjusted operation step or target power, and a control method thereof. In addition, the problems to be addressed by the technical idea of ​​the present disclosure are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0126] For example, to address the above-described issue, the input operation step and the target power corresponding to the input operation step need to be adjusted to a lower operation step and a lower target power. Accordingly, the processor (180) can adjust the operation step or the target power based on the input power of the power supply circuit (150) when a preset condition is satisfied. Then, the processor (180) can control the power supply circuit (150) based on the adjusted operation step or target power. Accordingly, the problem of the critical current being continuously applied to the power supply circuit (150) can be prevented. For example, the problem of the current lower than the critical current being applied to the power supply circuit (150) and the temperature of the element being maintained at a high temperature can be prevented.

[0127] Specifically, the processor (180) can identify whether the difference between the first input power applied to the power supply circuit (150) and the first target power is greater than or equal to a preset value (S530). At this time, the first input power may be the power input to the power supply circuit (150) when the aforementioned preset condition is satisfied, but is not limited thereto.

[0128] If the difference between the first input power and the first target power is greater than or equal to a preset value (S530-Y), the processor (180) can identify the second target power corresponding to the first input power (S540).

[0129] Specifically, the processor (180) can identify an operation step corresponding to the first input power. At this time, the processor (180) can identify an operation step corresponding to a power range to which the input power belongs. Here, the memory (110) can store information about the operation step corresponding to the power range to which the input power belongs.

[0130] For example, referring to FIG. 6B, information (620) on the operating steps corresponding to the power range to which the input power stored in the memory (110) belongs may be as illustrated in FIG. 6B. At this time, the power range corresponding to each operating step may be greater than or equal to the target power corresponding to each operating step and less than the target power corresponding to the operating step that is one step higher than each operating step. For example, the power range corresponding to operating step 4 may be greater than or equal to 800 W of power corresponding to operating step 4 and less than 1000 W of power corresponding to operating step 5.

[0131] Alternatively, the information (620) on the operating steps corresponding to the power range to which the input power illustrated in FIG. 6B belongs is merely an embodiment of the present disclosure and is not limited thereto. The power range corresponding to each operating step may be equal to or greater than a first average power between the target power corresponding to each operating step and the target power corresponding to the operating step that is one step lower than each operating step, and may be less than a second average power between the target power corresponding to each operating step and the target power corresponding to the operating step that is one step higher than each operating step. For example, the target power corresponding to operating step 4 may be 800 W. The target power corresponding to step 3, which is one step lower than operating step 4, may be 600 W. The target power corresponding to step 5, which is one step higher than operating step 4, may be 1000 W. In this case, the first average power may be 700 W, which is an average of 800 W and 600 W. And, the second average power may be 900W, which is the average of 800W and 1000W. In this case, the power range corresponding to the fourth stage may be greater than or equal to 700W and less than 900W.

[0132] Alternatively, the power range corresponding to each operating step may exceed the target power corresponding to the operating step one step lower than each operating step and be less than or equal to the target power corresponding to each operating step. For example, the target power corresponding to operating step 4 may be 800 W. The target power corresponding to step 3, which is one step lower than operating step 4, may be 600 W. In this case, the power range corresponding to operating step 4 may exceed 600 W and be less than 800 W.

[0133] Accordingly, the processor (180) can identify the second target power corresponding to the second operation step. The method by which the processor (180) identifies the second target power corresponding to the second operation step may be the same as the method described above with reference to FIG. 6A, but is not limited thereto.

[0134] Alternatively, the processor (180) may identify a second target power directly corresponding to the first input power without performing an operation to identify a second operating step. In this case, the processor (180) may identify an operating step corresponding to a power range to which the input power belongs. Here, the memory (110) may store information regarding the target power corresponding to the power range to which the input power belongs.

[0135] For example, referring to FIG. 6C, information (650) on target power corresponding to a power range to which the input power stored in the memory (110) belongs may be as illustrated in FIG. 6C. At this time, the power range corresponding to each target power may be equal to or greater than each target power and less than the target power that is one level higher than each target power. For example, the power range corresponding to a target power of 800W may be equal to or greater than the target power of 800W and less than 1000W, which is one level higher than the target power of 800W.

[0136] Meanwhile, the information (620) on the operation steps corresponding to the power range to which the input power illustrated in FIG. 6C belongs is only one embodiment of the present disclosure and is not limited thereto. The power range corresponding to each target power may be greater than or equal to the average between each target power and a target power one step higher than each target power, or less than the average between the target power one step higher than each target power and a target power two steps higher than each target power. For example, the power range corresponding to a target power of 800 W may be greater than or equal to 900 W, which is the average between the target power of 800 W and 1000 W, which is one step higher than the target power of 800 W, or less than 1100 W, which is the average between 1000 W, which is one step higher than the target power of 800 W, and 1200 W, which is two steps higher than the target power of 800 W. Accordingly, the processor (180) may identify the power matching the power range to which the first input power belongs as the second target power.

[0137] When the second target power is identified, the processor (180) can control the power supply circuit (150) based on the second target power (S550).

[0138] Specifically, the processor (180) can control the power supply circuit (150) so that the power input to the power supply circuit (150) reaches the second target power.

[0139] Meanwhile, as described above, the processor (180) can control the power supply circuit (150) so that the input power applied to the power supply circuit (150) increases until the input power of the power supply circuit (150) reaches the first target power or a preset condition is satisfied.

[0140] At this time, the preset conditions will be described in detail with reference to FIGS. 7a, 7b, 7c, 7d, 7e and 7f.

[0141] FIG. 7a, FIG. 7b, FIG. 7c, FIG. 7d, FIG. 7e, and FIG. 7f are flowcharts for explaining a method for controlling a power supply circuit (150) according to whether a preset condition is satisfied by an electronic device (100) according to various embodiments of the present disclosure.

[0142] FIG. 7A is a flowchart illustrating a method for controlling a power supply circuit (150) according to a temperature of the power supply circuit (150) by an electronic device (100) according to one or more embodiments of the present disclosure.

[0143] In the present disclosure, the temperature of the power supply circuit (150) may mean the temperature of a component constituting the power supply circuit (150).

[0144] Referring to FIG. 7a, the processor (180) can perform operations according to S510 and S520.

[0145] In addition, the processor (180) can identify whether the temperature of the power supply circuit (150) is higher than a preset temperature through the sensor (160) (S710). Specifically, the sensor (160) may include a temperature sensor. The processor (180) can detect the temperature of the power supply circuit (150) using the temperature sensor. The processor (180) can detect the temperature of the elements constituting the circuit included in the power supply circuit (150) using the temperature sensor.

[0146] The processor (180) can identify whether the temperature of an element constituting the power supply circuit (150) is higher than a preset temperature through the sensor (160). At this time, information about the preset temperature may be stored in the memory (110).

[0147] If the temperature of the power supply circuit (150) is below a preset temperature (S710-N), the processor (180) can perform an operation according to S520.

[0148] If the temperature of the power supply circuit (150) is higher than the preset temperature (S710-Y), the processor (180) can perform operations according to S530 and S540. At this time, the operation according to S530 can be omitted. That is, if the temperature of the power supply circuit (150) is higher than the preset temperature (S710-Y), the processor (180) can identify a second target power corresponding to the input power applied to the power supply circuit (150) (S540). Then, the power supply circuit (150) can be controlled based on the second target power.

[0149] FIG. 7b is a flowchart illustrating a method of controlling a power supply circuit according to whether an input power applied to the power supply circuit is less than or equal to a preset ratio of a first target power when the driving time of the power supply circuit according to one or more embodiments of the present disclosure has reached a preset time.

[0150] Referring to FIG. 7b, the processor (180) can perform operations according to S510 and S520.

[0151] And, when the driving time of the power supply circuit (150) reaches a preset time, the processor (180) can identify whether the ratio of the first input power applied to the power supply circuit (150) to the first target power is less than or equal to the preset ratio (S720).

[0152] Specifically, the processor (180) can identify the input power applied to the power supply circuit (150) when the operating time of the power supply circuit (150) reaches a preset time. In addition, the processor (180) can identify whether the ratio of the input power to the first target power is less than or equal to the preset ratio.

[0153] Here, the operating time of the power supply circuit (150) may be the time during which the processor (180) controls the power supply circuit (150) based on the first target power. For example, the operating time of the power supply circuit (150) may be the time during which the processor (180) controls the power supply circuit (150) based on the first target power.

[0154] The above-described preset time and preset ratio may vary depending on the operation step input by the user or the target power corresponding to the operation step. In this case, the preset time and preset ratio according to the operation step or target power may be stored in the memory (110).

[0155] For example, the first target power may be 2000 W, the preset time according to the first target power may be 30 seconds, and the preset ratio may be 70%. Then, when the operating time of the power supply circuit (150) reaches 30 seconds, the power supplied to the power supply circuit (150) may be 800 W. At this time, the ratio of the power supplied to the power supply circuit (150) to the first target power may be 800 / 2000. At this time, the processor (180) may identify that the ratio (40%) of the power supplied to the power supply circuit (150) to the first target power is less than or equal to the preset ratio (70%).

[0156] When the operating time of the power supply circuit (150) reaches a preset time, if the ratio of the first input power of the power supply circuit (150) to the first target power exceeds the preset ratio (S720-N), the processor (180) can perform the operation according to S520.

[0157] And, when the operating time of the power supply circuit (150) reaches a preset time, if the ratio of the first input power to the first target power is less than or equal to the preset ratio (S720-Y), the processor (180) can perform operations according to S530 and S540. At this time, the operation according to S530 can be omitted. That is, if the ratio of the first input power to the first target power is less than or equal to the preset ratio (S720-Y), the processor (180) can identify the second target power corresponding to the input power applied to the power supply circuit (150) (S540). And, based on the second target power, the power supply circuit (150) can be controlled.

[0158] FIG. 7c is a flowchart illustrating a method for controlling a power supply circuit according to a magnitude of a current constituting input power of the power supply circuit, by an electronic device according to one or more embodiments of the present disclosure.

[0159] Referring to FIG. 7c, the processor (180) can perform operations according to S510 and S520.

[0160] And, the processor (180) can identify whether the first input power, in which the ratio of the current constituting the first input power to the critical current is greater than or equal to the preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730). At this time, the preset ratio and the preset period of time may be different depending on the operation phase or the target power. Information about the preset ratio and the preset period of time according to the operation phase or the target power may be stored in the memory (110). For example, the critical current may be 80 A, the preset ratio may be 50%, and the preset period of time may be 30 seconds. At this time, when the input current of 60 A constituting the first input power is applied to the power supply circuit (150) for 30 seconds, the processor (180) can identify that the input power, in which the ratio of the current constituting the first input power to the critical current is greater than or equal to the preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer. If the first input power, in which the ratio of the current constituting the first input power to the critical current is greater than or equal to a preset ratio, is not applied to the power supply circuit (150) for a preset period of time (S730-N), the processor (180) can perform the operation according to S520.

[0161] If the first input power, in which the ratio of the current constituting the first input power to the critical current is greater than or equal to a preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730-Y), the processor (180) may perform operations according to S530 and S540. At this time, the operation according to S530 may be omitted. For example, if the first input power, in which the ratio of the current constituting the first input power to the critical current is greater than or equal to a preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730-Y), the processor (180) may identify a second target power corresponding to the first input power applied to the power supply circuit (150) (S540). Then, the processor (180) may control the power supply circuit (150) based on the second target power.

[0162] FIG. 7d is a flowchart illustrating a method for controlling a power supply circuit according to one or more embodiments of the present disclosure, wherein the electronic device controls a power supply circuit depending on whether a state in which a cooking vessel is placed on a cooking plate is maintained for a predetermined period of time.

[0163] Referring to FIG. 7d, the processor (180) can perform operations according to S510 and S520. In the present disclosure, the processor (180) can identify whether a cooking vessel is placed on a cooking plate before performing the operation according to S510.

[0164] Specifically, the sensor (160) may include a magnetic detection sensor. The processor (180) may use the magnetic detection sensor to detect whether a cooking container is placed on a cooking plate.

[0165] Alternatively, the sensor (160) may include a weight detection sensor. When a weight greater than a preset weight is detected on the cooking plate through the weight sensor, the processor (180) may identify that the cooking vessel is placed on the cooking plate.

[0166] If the cooking vessel is placed on the cooking plate, the processor (180) may perform operations according to S510 and S520. In addition, if the cooking vessel is not placed on the cooking plate, the processor (180) may not control the power supply circuit (150) based on the target power corresponding to the user input, even if a user input for heating the cooking vessel is obtained.

[0167] By performing operations according to S510 and S520, the processor (180) can identify whether the state in which the cooking container is placed on the cooking plate satisfies a preset condition (S740).

[0168] At this time, the preset condition may be a condition in which the operation of the electronic device (100) begins and the state in which the cooking container is placed on the cooking plate is maintained for a preset period of time or longer. For example, the preset condition may be a condition in which the operation of the electronic device (100) begins and the state in which the cooking container is placed on the cooking plate is maintained for 10 seconds or longer.

[0169] Alternatively, the preset condition may be a condition in which a cooking vessel is identified as being placed on a cooking plate and the cooking vessel remains placed on the cooking plate for a preset period of time. For example, the preset condition may be a condition in which a cooking vessel is identified as being placed on a cooking plate and the cooking vessel remains placed on the cooking plate for 10 seconds.

[0170] Alternatively, the preset condition may be a condition in which the cooking vessel is placed on the cooking plate after a preset period of time has elapsed after the cooking vessel is identified as being placed on the cooking plate. For example, the preset condition may be a condition in which the cooking vessel is identified as being placed on the cooking plate and the cooking vessel is placed on the cooking plate 10 seconds later.

[0171] Alternatively, the preset condition may be a condition in which the time the cooking vessel is removed while the electronic device (100) is in operation is less than or equal to a preset time. For example, the preset condition may be a condition in which the time the cooking vessel is removed while the electronic device (100) is in operation is less than or equal to 10 seconds.

[0172] If the state in which the cooking container is placed on the cooking plate does not satisfy the preset condition (S740-N), the processor (180) can perform the operation according to S520.

[0173] Alternatively, if the state in which the cooking vessel is placed on the cooking plate does not satisfy a preset condition (S740-N), the processor (180) may stop the operation of the electronic device (100). At this time, the processor (180) may temporarily stop the operation of the electronic device (100) until the cooking vessel is placed on the cooking plate. Then, when the cooking vessel is placed back on the cooking plate, the processor (180) may resume the operation of the electronic device (100). At this time, the processor (180) may perform the operation according to S520.

[0174] Alternatively, if the state in which the cooking vessel is placed on the cooking plate does not satisfy a preset condition (S740-N), the processor (180) may control the power supply circuit (150) based on a preset operation step. For example, while the power supply circuit (150) is controlled based on operation step 4, if the state in which the cooking vessel is placed on the cooking plate does not satisfy a preset condition, the processor (180) may control the power supply circuit (150) based on the preset operation step 1.

[0175] Meanwhile, if a preset condition is satisfied when the cooking vessel is placed on the cooking plate (S740-Y), the processor (180) can perform operations according to S530 and S540. At this time, the operation according to S530 may be omitted. For example, if at least one of a plurality of conditions is satisfied, the processor (180) can identify a second target power corresponding to the first input power applied to the power supply circuit (150) (S540). Then, the processor (180) can control the power supply circuit (150) based on the second target power.

[0176] Meanwhile, the preset condition according to the present disclosure may be a condition that combines at least one of the multiple conditions described with reference to FIGS. 7a, 7b, 7c, and 7d described above.

[0177] At this time, the processor (180) can perform operations according to S530 and S540 depending on whether a condition combining at least one of a plurality of conditions is satisfied.

[0178] FIGS. 7E and 7F are diagrams for explaining a method for controlling a power supply circuit (150) according to whether a plurality of conditions are satisfied by an electronic device (100) according to one or more embodiments of the present disclosure.

[0179] Referring to FIG. 7e, the processor (180) can perform operations according to S510 and S520.

[0180] And, the processor (180) can identify whether the temperature of the power supply circuit (150) is higher than a preset temperature (S710).

[0181] If the temperature of the power supply circuit (150) is below a preset temperature (S710-N), the processor (180) can identify whether the ratio of the first input power of the power supply circuit (150) to the first target power is below the preset ratio (S720).

[0182] And, if the ratio of the first input power to the first target power exceeds the preset ratio (S720-N), the processor (180) can identify whether the first input power, in which the ratio of the current constituting the first input power to the critical current of the power supply circuit (150) is greater than the preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730).

[0183] If the first input power, in which the ratio of the current constituting the first input power to the critical current of the power supply circuit (150) is greater than or equal to a preset ratio, is not applied to the power supply circuit (150) for a preset period of time (S730-N), the processor (180) can perform the operation according to S520.

[0184] And, if the temperature of the power supply circuit (150) is equal to or higher than a preset temperature (S710-Y), or if the ratio of the current constituting the first input power to the critical current is equal to or lower than the preset ratio (S720-Y), or if the first input power, in which the ratio of the current constituting the first input power to the critical current is equal to or higher than the preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730-Y), the processor (180) may perform operations according to S530 and S540. At this time, the operation according to S530 may be omitted. That is, if at least one of a plurality of conditions is satisfied, the processor (180) may identify a second target power corresponding to the first input power applied to the power supply circuit (150) (S540). And, the processor (180) may control the power supply circuit (150) based on the second target power.

[0185] Meanwhile, the processor (180) can identify whether multiple conditions are satisfied in the order of S710, S720, and S730 as described above, but this is only one embodiment of the present disclosure, and the processor (180) can identify whether multiple conditions are satisfied in any order of S710, S720, and S730. For example, the processor (180) can identify whether multiple conditions are satisfied in the order of S710, S730, and S720.

[0186] In addition, the processor (180) can identify whether multiple conditions are satisfied by performing all of the operations of S710, S720, and S730, but this is only one embodiment of the present disclosure, and at least one of the conditions according to S710, S720, and S730 may be omitted. For example, the processor (180) can identify whether multiple conditions are satisfied by omitting the operation according to S710 and performing the operations according to S720 and S730.

[0187] FIG. 7F is a flowchart illustrating a method for controlling a power supply circuit according to one or more embodiments of the present disclosure, wherein an electronic device controls a power supply circuit based on whether a condition combining at least one of a plurality of conditions is satisfied.

[0188] Referring to FIG. 7f, the processor (180) can perform operations according to S510 and S520.

[0189] And, the processor (180) can identify whether the temperature of the power supply circuit (150) is higher than a preset temperature (S710).

[0190] If the temperature of the power supply circuit (150) is below a preset temperature (S710-N), the processor (180) can identify whether the ratio of the first input power of the power supply circuit (150) to the first target power is below the preset ratio (S720).

[0191] And, if the ratio of the first input power to the first target power is lower than or equal to a preset ratio (S720-N), the processor (180) can identify whether the first input power, in which the ratio of the current constituting the first input current to the critical current is higher than or equal to the preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730).

[0192] And, if the first input power, in which the ratio of the current constituting the first input power to the critical current is greater than or equal to a preset ratio, is not applied to the power supply circuit (150) for a preset period of time (S730-N), the processor (180) can perform the operation according to S520.

[0193] And, when the temperature of the power supply circuit (150) is higher than or equal to a preset temperature (S710-Y), or the ratio of the input power of the power supply circuit (150) to the first target power is lower than or equal to the preset ratio (S720-Y), or the first input power, in which the ratio of the current constituting the first input power to the critical current is higher than or equal to the preset ratio, is applied to the power supply circuit (150) for a preset period of time or longer (S730-Y), the processor (180) can identify whether the state in which the cooking vessel is placed on the cooking plate satisfies the preset condition (S740).

[0194] If the state in which the cooking container is placed on the cooking plate does not satisfy the preset condition (S740-N), the processor (180) can perform the operation according to S520.

[0195] And, if the state in which the cooking container is placed on the cooking plate satisfies the preset condition (S740-Y), the processor (180) can perform the operations according to S530 and S540. At this time, the operation according to S530 can be omitted. That is, if the state in which the cooking container is placed on the cooking plate satisfies the preset condition (S740-Y), the processor (180) can identify the second target power corresponding to the first input power applied to the power supply circuit (150) (S540). And, the processor (180) can control the power supply circuit (150) based on the second target power.

[0196] FIG. 8 is a diagram for explaining changes in input power of a power supply circuit according to one embodiment of the present disclosure.

[0197] Referring to FIG. 8, when a user input including information that the first operation step is step 10 is obtained at time t1, the processor (180) can identify the first target power as 2000 W.

[0198] Accordingly, the processor (180) can control the power supply circuit (150) based on the identified first target power.

[0199] The processor (180) can control the power supply circuit (150) so that the input power of the power supply circuit (150) becomes 2000 W.

[0200] At time t2, the magnitude of the current constituting the input power can reach the threshold current of 80 A corresponding to the target power of the first operation stage of the power supply circuit (150). Accordingly, the input power of the power supply circuit (150) can be maintained at 1000 W from time t2. That is, if the magnitude of the current constituting the input power reaches the threshold current before the input power applied to the power supply circuit (150) reaches the target power of the first operation stage, the input power at the time when the magnitude of the current constituting the input power reaches the threshold current can be continuously applied to the power supply circuit (150).

[0201] As the input power of the power supply circuit (150) does not reach the target power, a critical current is continuously applied to the power supply circuit (150), which may cause the temperature of the power supply circuit to rise. When the temperature of the power supply circuit (150) becomes higher than a preset temperature at time t3, the processor (180) may identify the second operation step 4 corresponding to the input power of the power supply circuit (150) of 1000 W and the second target power of 800 W.

[0202] When the target power of 800 W is identified, the processor (180) can control the power supply circuit (150) so that the input power of the power supply circuit (150) becomes 800 W. Accordingly, the input power can become 800 W at time t4, and the temperature of the power supply circuit (150) can be reduced, thereby reducing the possibility of damage to the power supply circuit (150).

[0203] Meanwhile, in FIG. 8, the input power, the size of the current constituting the input power, and the temperature of the power supply circuit (150) are shown to increase or decrease linearly, but this is only one embodiment of the present disclosure, and the input power, the size of the current constituting the input power, and the temperature of the power supply circuit (150) may increase or decrease nonlinearly.

[0204] Meanwhile, a problem may arise in which the target power is adjusted excessively low due to reasons such as the cooking vessel leaving the upper part of the cooking plate for a certain period of time while the power supply circuit (150) is being operated.

[0205] Accordingly, the electronic device (100) can readjust the adjusted target power. Specifically, the electronic device (100) can identify the third target power based on the identified second target power and the temperature of the power supply circuit (150). In this case, the case where the electronic device (100) readjusts the adjusted target power is not limited to the case where the cooking container leaves the upper part of the cooking plate for a certain period of time.

[0206] FIG. 9 is a flowchart illustrating a method for an electronic device to readjust an adjusted target power according to one embodiment of the present disclosure.

[0207] Referring to FIG. 9, the processor (180) can identify the second target power by performing the operation according to S540.

[0208] And, when the second target power is identified, the processor (180) can identify whether the operation step corresponding to the second target power is less than the maximum operation step corresponding to the temperature of the power supply circuit (150) or whether the second target power is less than the target power corresponding to the temperature of the power supply circuit (150) (S910).

[0209] Here, the maximum operating stage may mean the highest operating stage in which the electronic device (100) can be driven within the safety range of the elements constituting the power supply circuit (150), depending on the temperature of the power supply circuit (150).

[0210] FIG. 10A and FIG. 10B are diagrams illustrating a method for an electronic device to readjust target power according to a temperature of a power supply circuit, according to various embodiments of the present disclosure.

[0211] Specifically, referring to FIG. 10A, the memory (110) may store information (1010) regarding the maximum operating stage of the power supply circuit (150) for each of a plurality of temperature ranges. For example, the memory (110) may store information (1010) regarding the maximum operating stage of the power supply circuit (150) that matches each of a plurality of temperature ranges.

[0212] For example, the operating step corresponding to the second target power may be step 3, and the temperature of the power supply circuit (150) may be 65 degrees. In addition, the maximum operating step corresponding to the temperature of the power supply circuit (150) may be step 4. In this case, the processor (180) may identify that the operating step corresponding to the second target power is less than the maximum operating step corresponding to the temperature of the power supply circuit (150).

[0213] And, referring to FIG. 10b, the memory (110) can store information (1020) on target power corresponding to the temperature of the power supply circuit (150). The processor (180) can identify the target power corresponding to the temperature of the power supply circuit (150) based on the information (1020) on target power corresponding to the temperature of the power supply circuit (150).

[0214] For example, the second target power may be 700 W, and the temperature of the power supply circuit (150) may be 65 degrees. At this time, the target power corresponding to the temperature of the power supply circuit (150) may be 800 W. In this case, the processor (180) may identify that the second target power is less than the target power corresponding to the temperature of the power supply circuit (150).

[0215] If the operation step corresponding to the second target power is identified as being less than the maximum operation step corresponding to the temperature of the power supply circuit (150) or the second target power is identified as being less than the target power corresponding to the temperature of the power supply circuit (150) (S910-Y), the processor (180) can identify a third target power that is higher than the second target power and lower than the first target power (S920).

[0216] Specifically, the processor (180) can identify a third operating step that is higher than the second operating step corresponding to the second target power and lower than the first operating step corresponding to the first target power. Furthermore, the processor (180) can identify the third target power based on the third operating step. In this case, the third operating step may be a maximum operating step corresponding to the temperature of the power supply circuit (150).

[0217] When the third target power is identified, the processor (180) can control the power supply circuit (150) based on the third target power (S930).

[0218] And, if the operation step corresponding to the second target power is identified as being greater than or equal to the maximum operation step corresponding to the temperature of the power supply circuit (150) or the second target power is identified as being greater than or equal to the target power corresponding to the temperature of the power supply circuit (150) (S910-N), the processor (180) can perform the operation according to S550.

[0219] Meanwhile, when the power supply circuit (150) is driven based on the second target power, the temperature of the power supply circuit (150) may decrease. When the temperature of the power supply circuit (150) decreases, the processor (180) may control the power supply circuit (150) by readjusting the target power.

[0220] FIG. 11 is a flowchart illustrating a method for an electronic device to readjust target power according to a temperature of a power supply circuit, according to one or more embodiments of the present disclosure.

[0221] Referring to FIG. 11, the processor (180) can perform an operation according to S550.

[0222] While controlling the power supply circuit (150) based on the second target power, the processor (180) can detect a temperature change of the power supply circuit (150).

[0223] And, the processor (180) can identify whether the temperature of the power supply circuit (150) falls below a preset temperature (S1110).

[0224] If the temperature of the power supply circuit (150) does not fall below a preset temperature (S1110-N), the processor (180) can perform an operation according to S550.

[0225] When the temperature of the power supply circuit (150) drops below a preset temperature (S1110-Y), the processor (180) can identify whether the second operation step corresponding to the second target power is lower than the first operation step corresponding to the first target power (S1120).

[0226] And, if the second operation step is less than the first operation step (S1120-Y), the processor (180) can identify a third target power corresponding to a third operation step that is a preset step or higher than the second operation step (S1130).

[0227] For example, if the second operation step is step 4 and the preset step is step 1, the processor (180) can identify step 5 as the third operation step. In addition, the processor (180) can identify the third target power corresponding to the third operation step.

[0228] Once the third target power is identified, the processor (180) can control the power supply circuit (150) based on the third target power (S1140). Accordingly, the input power closest to the first operation step input by the user within the safety range of the components of the power supply circuit (150) can be applied to the power supply circuit (150).

[0229] Meanwhile, the operation according to S1120 may be omitted. For example, if the temperature of the power supply circuit (150) drops below a preset temperature, the processor (180) may identify a third target power corresponding to a third operation step that is higher than a preset level than the second operation step. Then, the processor (180) may control the power supply circuit (150) based on the third target power. At this time, the third operation step or the third target power corresponding to the third operation step, which is an adjusted operation step, may be lower than or equal to the first operation step or the first target power. If the third operation step or the third target power exceeds the first operation step or the first target power, the processor (180) may readjust the third operation step or the third target power to the first operation step or the first target power.

[0230] FIG. 12 is a flowchart illustrating a method for an electronic device according to one embodiment of the present disclosure to provide information indicating that a target power or operating phase has been adjusted.

[0231] The processor (180) can identify the adjusted target power (second target power or third target power) according to the above-described method (S1210). Alternatively, the processor (180) can identify the adjusted operation step (second operation step or third operation step). Then, the processor (180) can identify the adjusted target power from the adjusted operation step.

[0232] Once the adjusted target power is identified, the processor (180) may provide information regarding the target power adjustment (S1220). Specifically, once the second target power is identified, the processor (180) may provide information indicating that the target power of the power supply circuit (150) has been adjusted from the first target power to the second target power. Alternatively, once the second operation step is identified, the processor (180) may provide information indicating that the operation step of the power supply circuit (150) has been adjusted from the first operation step to the second operation step.

[0233] At this time, the information provided may include information about the cause of the target power or operating step adjustment (e.g., use of a low-efficiency container or an increase in temperature of the power supply circuit (150)) and the result of the target power or operating step adjustment (e.g., operating step adjusted from step 8 to step 4).

[0234] When a third target power is identified, the processor (180) may provide information indicating that the target power of the power supply circuit (150) has been adjusted from the second target power to the third target power. Alternatively, when a third operating step is identified, the processor (180) may provide information indicating that the operating step of the power supply circuit (150) has been adjusted from the second operating step to the third operating step.

[0235] Specifically, the processor (180) can control the display (140) to display a UI indicating that the target power or operating phase of the power supply circuit (150) has been adjusted.

[0236] Meanwhile, the processor (180) may control the power supply circuit (150) based on the adjusted target power and provide an alarm for a change in the target power, but this is only one embodiment of the present disclosure, and the processor (180) may provide the user with information for inputting whether to adjust the target power and determine whether to adjust the target power based on a response obtained from the user.

[0237] Specifically, the processor (180) may provide a screen or voice to the user for inputting whether to adjust the operation step or target power. In addition, the processor (180) may obtain user input for inputting whether to adjust the operation step or target power. If a user input for changing the operation step or target power is obtained or no user input is obtained within a preset time, the processor (180) may control the power supply circuit (150) based on the adjusted target power. In addition, if a user input for not adjusting the target power is obtained, the processor (180) may stop the operation of the electronic device (100) for safety reasons.

[0238] FIGS. 13A and 13B are diagrams illustrating a method for an electronic device according to various embodiments of the present disclosure to provide information indicating that a target power or operating phase of a power supply circuit has been adjusted.

[0239] Referring to FIG. 13a, the processor (180) can control the display (140) to display a UI including information such as “For safe cooking, control the firepower to an output corresponding to the container efficiency. Step 8 → Step 4.”

[0240] Alternatively, referring to FIG. 13b, the processor (180) may control the display (140) to display a UI including information such as “For safe cooking, an operation step adjustment is required. Would you like to adjust it?”

[0241] Alternatively, the processor (180) may control the speaker to output a sound indicating that the target power or operating stage of the power supply circuit (150) has been adjusted. At this time, the speaker may be a component included in the electronic device (100). For example, the processor (180) may control the speaker to output a sound such as, “For safe cooking, the firepower is controlled to an output corresponding to the container efficiency. The operating stage has been adjusted from stage 8 to stage 4.”

[0242] Alternatively, the processor (180) may control the speaker to output a voice such as “For safe cooking, adjustment of the operation steps is required.” Would you like to adjust it?”

[0243] Alternatively, the processor (180) may control the communication interface (120) to transmit information indicating that the target power or operating phase of the power supply circuit (150) has been adjusted to an external device. Specifically, the processor (180) may control the communication interface (120) to transmit information indicating that the input power of the power supply circuit (150) has been adjusted to the external device. Accordingly, the external device may provide information indicating that the target power or operating phase of the power supply circuit (150) has been adjusted.

[0244] Alternatively, the processor (180) may control the communication interface (120) to transmit information for receiving input on whether to adjust the operation step or target power to an external device. Accordingly, the external device may provide information for receiving input on whether to adjust the operation step or target power. In addition, the processor (180) may receive user input on whether to adjust the operation step or target power from the external device through the communication interface (120).

[0245] At this time, the external device may provide, through a display or speaker, information notifying that the target power or operating phase of the power supply circuit (150) has been adjusted, or a UI or voice inquiring whether the target power or operating phase has been adjusted, but is not limited thereto.

[0246] Meanwhile, the processor (180) may simultaneously perform one or more of the following operations: displaying a UI indicating that the target power or operating phase of the power supply circuit (150) has been adjusted, outputting a voice, and transmitting information. In addition, the processor (180) may simultaneously perform at least one of the following operations: displaying a UI for receiving input on whether to adjust the operating phase or target power, outputting a voice, and transmitting information. In this case, the processor (180) may simultaneously or sequentially perform at least one of the above-described operations.

[0247] FIG. 14 is a flowchart illustrating a method for an electronic device (100) according to one or more embodiments of the present disclosure to operate when a user input for readjusting an operation step (or target power) is obtained.

[0248] Referring to FIG. 14, the processor (180) can control the power supply circuit (150) based on the adjusted target power (S1410).

[0249] While the power supply circuit (150) is controlled based on the adjusted target power, the processor (180) may obtain a user input for changing the adjusted target power to a target power higher than the adjusted target power (S1420). At this time, the user input may be a user input for entering an operation step of a higher level than the operation step corresponding to the adjusted target power.

[0250] The processor (180) can identify whether the target power corresponding to the user input is within an adjustable target power range (S1430). Specifically, the processor (180) can identify whether the operation step included in the user input is less than or equal to the maximum operation step corresponding to the temperature of the power supply circuit (150). Alternatively, the processor (180) can identify whether the target power corresponding to the operation step included in the user input is less than or equal to the target power corresponding to the temperature of the power supply circuit (150).

[0251] If the target power corresponding to the user input is outside the adjustable target power range (S1430-N), the processor (180) may re-provide the alarm previously provided in step S1220 or provide information indicating that readjustment of the operation step (or target power) is not possible (S1440).

[0252] Accordingly, when the target power is adjusted and a user input is obtained to readjust the target power to a higher target power than the adjusted target power without any change in the cooking environment, such as a removed cooking vessel being placed back on the cooking plate, the processor (180) can maintain the adjusted target power.

[0253] If the operation step input by the user is within the adjustable operation step range (S1430-Y), the processor (180) can control the power supply circuit (150) based on the readjusted target power (S1450). Specifically, the processor (180) can readjust the adjusted target power to a target power corresponding to the operation step input by the user. Then, based on the readjusted target power, the processor (180) can control the power supply circuit (150).

[0254] Meanwhile, the processor (180) may provide information on the range of adjustable operating steps before obtaining a user input for changing the adjusted target power to a target power higher than the adjusted target power. For example, the processor (180) may display the range of adjustable operating steps on the user interface (130) through the display (140) or the user interface (130). Alternatively, the processor (180) may display information on the maximum operating step among the adjustable operating steps through the display (140) or the user interface (130). Then, when a user input for an operating step belonging to the range of adjustable operating steps is obtained, the processor (180) may readjust the adjusted target power to a target power corresponding to the operating step included in the user input.

[0255] FIG. 15 is a diagram illustrating a method for an electronic device according to one or more embodiments of the present disclosure to operate when a user input for readjusting an operation step (or target power) is obtained.

[0256] Alternatively, referring to FIG. 15, the processor (180) may, at step S1430-N, provide information on an adjustable operating step range along with information indicating that readjustment of the operating step (or target power) is not possible. For example, the processor (180) may display a screen such as “Cooking is not possible at the set level for safe cooking. The settable operating steps are steps 1, 2, 3, and 4.” Then, when a user input for selecting one of the settable operating steps is obtained, the processor (180) may control the power supply circuit (150) based on the input operating step.

[0257] FIG. 16 is a flowchart for explaining a control method of an electronic device according to one embodiment of the present disclosure.

[0258] Referring to FIG. 16, the electronic device (100) can control the power supply circuit (150) based on the first target power corresponding to the operation step input by the user (S1610).

[0259] The electronic device (100) can increase the input power of the power supply circuit (150) to the first input power, and when a preset condition is satisfied, can identify whether the difference between the first input power and the first target power is greater than or equal to a preset value.

[0260] Specifically, the electronic device (100) can identify whether the difference between the first input power and the first target power is greater than or equal to a preset value when the temperature of the power supply circuit (150) is greater than or equal to a preset temperature.

[0261] The electronic device (100) can identify whether the difference between the first input power and the first target power is greater than or equal to a preset value when the driving time of the power supply circuit (150) has elapsed for a certain period of time and the ratio of the first input power to the first target power is less than or equal to a preset ratio.

[0262] The electronic device (100) can identify whether the difference between the first input power and the first target power is greater than or equal to a preset value when the driving time of the power supply circuit (150) has elapsed for a predetermined period of time and the ratio of the current constituting the first input power to the critical current of the power supply circuit (150) is greater than or equal to a preset ratio.

[0263] The electronic device (100) can detect a cooking vessel placed on a cooking plate, and if the cooking vessel is kept placed on the cooking plate for a certain period of time, can identify whether the difference between the first input power and the first target power is greater than or equal to a preset value.

[0264] The electronic device (100) can identify whether the temperature of the power supply circuit (150) is equal to or higher than a preset temperature, and if the temperature of the power supply circuit (150) is lower than the preset temperature, the electronic device (100) can identify whether the first driving time of the power supply circuit (150) has elapsed a first preset time and the ratio of the first input power to the first target power exceeds a first preset ratio. In addition, the electronic device (100) can identify whether the second driving time of the power supply circuit (150) has elapsed a second preset time and the ratio of the current constituting the first input power to the critical current of the power supply circuit (150) is equal to or higher than the second preset ratio if the ratio of the first input power to the first target power exceeds the preset ratio. And, the electronic device (100) can identify whether the state in which the cooking vessel is placed on the cooking plate is maintained for a preset third time or longer if the ratio of the current constituting the first input power to the critical current of the power supply circuit (150) is equal to or greater than the preset second ratio. And, the electronic device (100) can identify whether the difference between the first input power and the first target power is equal to or greater than the preset value if the state in which the cooking vessel is placed on the cooking plate is maintained for a preset third time or longer.

[0265] And, if the difference between the first input power of the power supply circuit (150) and the first target power is greater than or equal to a preset value, the electronic device (100) can control the power supply circuit (150) (150) based on the second target power corresponding to the first input power (S1620).

[0266] The electronic device (100) can control the power supply circuit (150) based on a third target power that is higher than the second target power and lower than the first target power, if the second target power is lower than the target power corresponding to the temperature of the power supply circuit (150).

[0267] The electronic device (100) can control the power supply circuit (150) based on a third target power that is higher than the second target power when the temperature of the power supply circuit (150) drops below a preset temperature.

[0268] The electronic device (100) may provide information indicating that the target power or operating phase of the electronic device (100) has changed when the second target power or the third target power is identified.

[0269] The electronic device (100) can increase the input power of the power supply circuit (150) by increasing the size of the current that constitutes the power output by the power supply circuit (150).

[0270] The power supply circuit (150) may include at least one switching element for supplying AC power to the induction heating coil (170). At this time, the switching element may be an insulated gate bipolar mode transistor.

[0271] Meanwhile, in one or more of the embodiments described above, the input power of the power supply circuit (150) can be replaced with the supply power (or output power) of the power supply circuit (150).

[0272] For example, the electronic device (100) according to the present disclosure may adjust an operation step or target power by comparing the input power of the power supply circuit (150) with the target power, and control the power supply circuit (150) based on the adjusted operation step and target power, but is not limited thereto, and according to one or more embodiments of the present disclosure, the electronic device (100) may adjust an operation step or target power by comparing the supply power of the power supply circuit (150) with the target power, and control the power supply circuit (150) based on the adjusted operation step and target power.

[0273] At this time, the method by which the electronic device (100) adjusts the operation step or target power by comparing the supply power of the power supply circuit (150) with the target power may be the same as the method by which the electronic device (100) adjusts the operation step or target power by comparing the input power of the power supply circuit (150) with the target power.

[0274] Meanwhile, the terms "part" or "module" used in the present disclosure include units composed of hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A "part" or "module" may be an integrally composed component, a minimum unit performing one or more functions, or a portion thereof. For example, a module may be composed of an application-specific integrated circuit (ASIC).

[0275] Various embodiments of the present disclosure may be implemented as software including instructions stored in a machine-readable storage medium that can be read by a machine (e.g., a computer). The device may include an electronic device (100) according to the disclosed embodiments, which is a device capable of calling instructions stored in the storage medium and operating according to the called instructions. When the instructions are executed by a processor, the processor may directly, or under the control of at least one processor, perform a function corresponding to the instructions using other components. The instructions may include code generated or executed by a compiler or interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, "non-transitory" means that the storage medium does not contain signals and is tangible, but does not distinguish between data being stored semi-permanently or temporarily in the storage medium.

[0276] According to one or more embodiments, the methods according to various embodiments of the present disclosure disclosed herein may be provided as a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or online through an application store (e.g., Play Store™). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0277] Each component (e.g., a module or a program) according to various embodiments may be composed of one or more entities, and some of the aforementioned sub-components may be omitted, or other sub-components may be further included in various embodiments. Alternatively or additionally, some components (e.g., a module or a program) may be integrated into a single entity, which may perform the same or similar functions as those performed by each of the respective components prior to integration. Operations performed by a module, program, or other component according to various embodiments may be executed sequentially, in parallel, iteratively, or heuristically, or at least some operations may be executed in a different order, omitted, or other operations may be added.

[0278] It will be appreciated that various embodiments of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software, as described in the claims and specification.

[0279] Such software may be stored on a nonvolatile computer-readable storage medium. The nonvolatile computer-readable storage medium stores one or more computer programs (software modules), and the one or more computer programs may include computer-executable instructions that, when executed by one or more processors of the electronic device, cause the electronic device to perform the method of the present disclosure.

[0280] Such software may be stored in a volatile or non-volatile storage form, for example, a storage device such as a read-only memory (ROM), which may be erasable, overwritable, or otherwise, or may be stored in a random access memory (RAM), a memory chip, device, or integrated circuit, or an optically or magnetically readable medium such as a compact disc (CD), a digital versatile disc (DVD), a magnetic disk, or a magnetic tape. It will be appreciated that the storage devices and storage media are various embodiments of non-volatile machine-readable storage suitable for storing a computer program or computer programs including instructions for implementing various embodiments of the present disclosure. Accordingly, various embodiments provide a program comprising code for implementing an apparatus or method as claimed in any claim of this specification, and a non-volatile machine-readable storage storing such a program.

[0281] While the present disclosure has been described with respect to various embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.

Claims

1. In electronic devices, User interface; A cooking plate on which a cooking container can be placed; An induction heating coil for inducing a magnetic field on the above cooking plate; A power supply circuit for supplying power to the above induction heating coil; A memory storing one or more computer programs; and comprising one or more processors communicatively connected to the user interface, the cooking plate, the induction heating coil and the power supply circuit; When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, Controlling the power supply circuit based on the first target power corresponding to the operation step input by the user through the user interface, An electronic device that controls the power supply circuit based on a second target power corresponding to the first input power of the power supply circuit when the difference between the first input power of the power supply circuit and the first target power is greater than or equal to a preset value.

2. In paragraph 1, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that increases the input power of the power supply circuit to a first input power and, when a preset condition is satisfied, identifies whether a difference between the first input power and the first target power is greater than or equal to a preset value.

3. In paragraph 2, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that identifies whether a difference between the first input power and the first target power is greater than or equal to a preset value when the temperature of the power supply circuit is greater than or equal to a preset temperature.

4. In paragraph 2, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that identifies whether a difference between the first input power and the first target power is greater than or equal to a preset value when the driving time of the power supply circuit has elapsed for a predetermined period of time and the ratio of the first input power to the first target power is less than or equal to a preset ratio.

5. In paragraph 2, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that identifies whether a difference between the first input power and the first target power is greater than or equal to a preset value when the driving time of the power supply circuit has elapsed for a predetermined period of time and a ratio of a current constituting the first input power to a critical current of the power supply circuit is greater than or equal to a preset ratio.

6. In paragraph 2, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, Detects the cooking container placed on the above cooking plate, An electronic device that identifies whether the difference between the first input power and the first target power is greater than or equal to a preset value when the state in which the cooking container is placed on the cooking plate is maintained for a predetermined period of time.

7. In paragraph 2, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, Identify whether the temperature of the above power supply circuit is above a preset temperature, If the temperature of the power supply circuit is below a preset temperature, it is identified whether the first driving time of the power supply circuit has elapsed a preset first time and whether the ratio of the first input power to the first target power exceeds a preset first ratio; If the ratio of the first input power to the first target power exceeds a preset ratio, the second driving time of the power supply circuit is determined to have elapsed a preset second time, and whether the ratio of the current constituting the first input power to the critical current of the power supply circuit is equal to or greater than the preset second ratio, If the ratio of the current constituting the first input power to the critical current of the power supply circuit is greater than or equal to a preset second ratio, it is determined whether the state in which the cooking vessel is placed on the cooking plate is maintained for a preset third time or longer, An electronic device that identifies whether the difference between the first input power and the first target power is greater than or equal to a preset value when the state in which the cooking vessel is placed on the cooking plate is maintained for a preset third time or longer.

8. In paragraph 1, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that controls the power supply circuit based on a third target power that is higher than the second target power and lower than the first target power when the second target power is less than a target power corresponding to a temperature of the power supply circuit.

9. In paragraph 1, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that controls the power supply circuit based on a third target power higher than the second target power when the temperature of the power supply circuit drops below a preset temperature.

10. In paragraph 1, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device, wherein when the second target power is identified, information is provided notifying that the target power of the electronic device has changed.

11. In paragraph 1, When the computer-executable instructions contained in said one or more computer programs are executed, said one or more processors, An electronic device that increases the input power of the power supply circuit by increasing the size of the current that constitutes the power output by the power supply circuit.

12. In paragraph 1, The above power supply circuit, An electronic device comprising at least one switching element for supplying alternating current power to the induction heating coil.

13. In paragraph 12, The above switching element is an insulated gate bipolar mode transistor, an electronic device.

14. In a method for controlling an electronic device, A step of controlling a power supply circuit based on a first target power corresponding to an operation step input by a user; and A control method, comprising: a step of controlling the power supply circuit based on a second target power corresponding to the first input power of the power supply circuit when the difference between the first input power of the power supply circuit and the first target power is greater than or equal to a preset value.

15. A non-transitory computer-readable recording medium including a program for executing a method of controlling an electronic device, The above control method is, A step of controlling a power supply circuit based on a first target power corresponding to an operation step input by a user; and A non-transitory computer-readable recording medium, comprising: a step of controlling the power supply circuit based on a second target power corresponding to the first input power of the power supply circuit when the difference between the first input power of the power supply circuit and the first target power is greater than or equal to a preset value;

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