Electronic device and operation method thereof

Abstract

This electronic device may comprise: a battery; a load; a converter for providing power to the load on the basis of power provided from the battery; a first comparison circuit; a pulse width modulation (PWM) control circuit; a first signal generation circuit; a driving logic circuit; and a controller. The controller may be configured to output a control voltage on the basis of an output voltage of the converter and a target voltage of the output voltage by using the first comparison circuit. The controller may be configured to output a basic signal on the basis of the control voltage and a sawtooth wave by using the PWM control circuit. The controller may be configured to output a turn-on signal on the basis of the basic signal by using the first signal generation circuit. The controller may be configured to output first driving signals on the basis of the basic signal and the turn-on signal by using the driving logic circuit. The controller may be configured to control a plurality of switches of the converter on the basis of the first driving signals. Various other embodiments are possible.

Description

Electronic device and method of operation thereof

[0001] The present disclosure relates to an electronic device and a method of operating the same according to one embodiment.

[0002] A switching regulator (or switching converter) is a circuit that converts DC (direct current) voltage into DC voltage. A buck converter is used for step-down, a boost converter for step-up, and a non-inverting buck-boost converter for both step-up and step-down. For example, in the case of an electronic device that includes a lithium-ion battery with a voltage between 2.5 [V] and 4.5 [V] depending on the state of charge, a non-inverting buck-boost converter that can both step-up and step-down depending on the battery voltage is required to obtain an output voltage of 3.0 [V].

[0003] Non-inverting buck-boost converters have the advantage of being able to operate stably even under wide input voltage fluctuations that buck converters or boost converters cannot operate under, but have the disadvantage of low efficiency due to the relatively large current of the inductors and switches compared to buck or boost. Therefore, in order to increase efficiency and extend battery life, they do not operate in buck-boost mode over the entire battery voltage range, but rather operate in buck mode in most voltage sections where the input voltage is higher than the output voltage, operate in boost mode in most voltage sections where the input voltage is lower than the output voltage, and operate in buck-boost mode only in ranges where the input voltage and output voltage are similar.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above-described matters constitute prior art related to the present disclosure.

[0005] According to one embodiment, an electronic device may include a battery, a load, a converter for providing power to the load based on power provided by the battery, a first comparison circuit, a pulse width modulation (PWM) control circuit, a first signal generation circuit, a driving logic circuit, and a controller. The controller may be configured to output a control voltage based on an output voltage of the converter and a target voltage of the output voltage using the first comparison circuit. The controller may be configured to output a basic signal based on the control voltage and a sawtooth wave using the PWM control circuit. The controller may be configured to output a turn-on signal based on the basic signal using the first signal generation circuit. The controller may be configured to output first driving signals based on the basic signal and the turn-on signal using the driving logic circuit. The controller may be configured to control a plurality of switches of the converter based on the first driving signals.

[0006] According to one embodiment, a method of operating an electronic device may include an operation of outputting a control voltage based on an output voltage of a converter of the electronic device and a target voltage of the output voltage. The method may include an operation of outputting a basic signal based on the control voltage and a sawtooth wave. The method may include an operation of outputting a turn-on signal based on the basic signal. The method may include an operation of outputting first driving signals based on the basic signal and the turn-on signal. The method may include an operation of controlling a plurality of switches of the converter based on the first driving signals.

[0007] According to one embodiment, a computer-readable recording medium storing instructions set to cause a controller of an electronic device to perform at least one operation may include an operation of outputting a control voltage based on an output voltage of a converter of the electronic device and a target voltage of the output voltage. The at least one operation may include an operation of outputting a basic signal based on the control voltage and a sawtooth wave. The at least one operation may include an operation of outputting a turn-on signal based on the basic signal. The at least one operation may include an operation of outputting first driving signals based on the basic signal and the turn-on signal. The at least one operation may include an operation of controlling a plurality of switches of the converter based on the first driving signals.

[0008] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0009] FIG. 2 is a block diagram of an electronic device according to one embodiment.

[0010] FIG. 3 is a block diagram of an electronic device according to one embodiment.

[0011] FIG. 4 is a diagram illustrating the operation of a converter of an electronic device according to one embodiment.

[0012] FIG. 5 is a drawing illustrating the operation of a converter of an electronic device according to one embodiment.

[0013] FIG. 6 is a diagram illustrating the operation of a converter of an electronic device according to one embodiment.

[0014] Fig. 7 is a drawing explaining the operation of a converter of an electronic device according to a comparative example.

[0015] FIG. 8 is a circuit diagram of a circuit included in an electronic device according to one embodiment.

[0016] FIG. 9 is a block diagram of an electronic device according to one embodiment.

[0017] FIG. 10 is a block diagram of an electronic device according to one embodiment.

[0018] FIG. 11 is a block diagram of an electronic device according to one embodiment.

[0019] FIG. 12 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0020] FIG. 13 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0021] FIG. 14 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0022] FIG. 15 is a flowchart of a method of operating an electronic device according to one embodiment.

[0023] FIG. 16 is a flowchart of a method of operating an electronic device according to one embodiment.

[0024] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0025] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0026] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0027] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0028] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0029] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0030] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0031] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0032] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0033] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0034] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0035] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0036] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0037] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0038] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0039] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0040] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0041] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0042] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for realizing 1eMBB, a loss coverage (e.g., 164 dB or less) for realizing mMTC, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for realizing URLLC.

[0043] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0044] According to various embodiments, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0045] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0046] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0047] FIG. 2 is a block diagram of an electronic device according to one embodiment. FIG. 3 is a block diagram of an electronic device according to one embodiment.

[0048] According to one embodiment, the electronic device (101) may be a device (e.g., a laptop computer, a tablet, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance) that receives power (291) from a power source (290). The power source (290) may be a device (e.g., a wired charging device or a wireless charging device) that provides power (291) (e.g., wired power or wireless power) to the electronic device (101). The power source (290) may be a device (e.g., an adapter) that transmits external power to the electronic device (101). The power source (290) is a device that provides power and is not limited in its type. The electronic device (101) is a device that receives power and is not limited in its type.

[0049] Referring to FIGS. 2 and 3, according to one embodiment, the electronic device (101) may include a power circuit (210), a charger circuit (220), a battery (230), a converter (240), a load (250), and a controller (260). Referring to FIGS. 2 and 3, the connection structure of the charger circuit (220), the battery (230), and the converter (240) included in the electronic device (101) may be understood. Referring to FIG. 2, according to one embodiment, an output terminal of the charger circuit (220) may be electrically connected to an input terminal of the converter (240) and the battery (230). Referring to FIG. 3, according to one embodiment, an output terminal of the charger circuit (220) may be electrically connected to an input terminal of the battery (230), and an output terminal of the battery (230) may be electrically connected to an input terminal of the converter (240). The connection structure of the charger circuit (220), battery (230), and converter (240) is not limited to the embodiments of FIGS. 2 and 3.

[0050] According to one embodiment, the operation of the electronic device (101) may be controlled by the controller (260) of the electronic device (101) (e.g., the processor (120) of FIG. 1). The electronic device (101) performing a specific operation may be that the electronic device (101) or a component included in the electronic device (101) is controlled by the controller (260) of the electronic device (101). The electronic device (101) may include one or more controllers (260), and for the convenience of explanation, in the following, even when a plurality of controllers (260) are implemented, the term “operation of the electronic device (101)” or “operation of the controller (260)” will be described.

[0051] According to one embodiment, the electronic device (101) (e.g., the controller (260)) may receive power (e.g., wired power or wireless power) provided from a power source (290) via a power circuit (210). For example, the power circuit (210) may include a wired power circuit (e.g., a circuit including a wired connector) and / or a wireless power circuit (e.g., a circuit including a receiving coil and a rectifier).

[0052] According to one embodiment, the electronic device (101) (e.g., the controller (260)) may provide power to the charger circuit (220) through the power circuit (210). The electronic device (101) (e.g., the controller (260)) may provide power to the battery (230) through the charger circuit (220). The charger circuit (220) may be a circuit that provides power to the battery (230) based on power provided from an external power source (290). The charger circuit (220) may receive power from the power circuit (210). The charger circuit (220) may provide power to the battery (230) based on power provided from the power circuit (210). The charger circuit (220) may convert an input voltage into an output voltage. The output voltage of the charger circuit (220) may be the input voltage (e.g., charging voltage) of the battery (230). The battery (230) may be charged based on the output voltage (e.g., charging voltage) of the charger circuit (220).

[0053] According to one embodiment, the electronic device (101) (e.g., the controller (260)) may provide power to the load (250) through the converter (240). The load (250) may be a component that consumes power as one of the components of the electronic device (101). The converter (240) may provide power to the load (250) based on the power provided to the converter (240). Referring to FIG. 2, for example, the converter (240) may receive power from the battery (230). Referring to FIG. 2, for example, the converter (240) may receive power from the charger circuit (220). Referring to FIG. 3, for example, the converter (240) may receive power from the battery (230). The converter (240) can convert the input voltage to the converter (240) into a voltage suitable for a load (250) electrically connected to the converter (240). Although FIGS. 2 and 3 illustrate that there is one converter (240) and one load (250), this is for convenience of explanation, and there is no limitation on the number of converters (240) and loads (250). For example, referring to FIG. 2, if there are two converters (240) and two loads (250), the input terminal of the first converter may be connected to the output terminal of the charger circuit (220) and the battery (230), and the first load may be connected to the output terminal of the first converter, the input terminal of the second converter may be connected to the output terminal of the charger circuit (220) and the battery (230), and the second load may be connected to the output terminal of the second converter. In this case, a plurality of converters (240) may be electrically connected to the output terminal of the charger circuit (220) and the battery (230). Referring to FIG. 3, for example, if there are two converters (240) and two loads (250), the input terminal of the first converter may be connected to the battery (230), the first load may be connected to the output terminal of the first converter, the input terminal of the second converter may be connected to the battery (230), and the second load may be connected to the output terminal of the second converter.In this case, a plurality of converters (240) can be electrically connected to the battery (230).

[0054] FIG. 4 is a diagram illustrating the operation of a converter of an electronic device according to one embodiment. FIG. 5 is a diagram illustrating the operation of a converter of an electronic device according to one embodiment. FIG. 6 is a diagram illustrating the operation of a converter of an electronic device according to one embodiment. FIG. 7 is a diagram illustrating the operation of a converter of an electronic device according to one embodiment.

[0055] Referring to (a) of FIG. 4, according to one embodiment, the converter (240) may be implemented as a buck-boost converter. The converter (240) may include a plurality of switches (441, 442, 443, 444) (e.g., Q1, Q2, Q3, Q4) and at least one inductor (445). The plurality of switches (441, 442, 443, 444) (e.g., Q1, Q2, Q3, Q4) may include a first switch (441) (e.g., Q1), a second switch (442) (e.g., Q2), a third switch (443) (e.g., Q3), and a fourth switch (444) (e.g., Q4). An electronic device (101) (e.g., controller (260)) can control the converter (240) to perform buck converting, boost converting, or buck-boost converting by controlling a plurality of switches (441, 442, 443, 444) (e.g., Q1, Q2, Q3, Q4) of the converter (240). The electronic device (101) (e.g., controller (260)) can control a plurality of switches (441, 442, 443, 444) (e.g., Q1, Q2, Q3, Q4) of the converter (240) based on an operating mode (e.g., buck mode, boost mode, or buck-boost mode) of the converter (240). For example, the electronic device (101) (e.g., the controller (260)) can PWM-switch (e.g., alternately control) Q1 and Q2, control Q4 to an on state, and control Q3 to an off state for buck converting (e.g., buck mode or buck operation). For example, the electronic device (101) (e.g., the controller (260)) can PWM-switch Q3 and Q4, control Q1 to an on state, and control Q2 to an off state for boost converting (e.g., boost mode or boost operation).For example, the electronic device (101) (e.g., the controller (260)) can PWM switch Q1 and Q2, PWM switch Q3 and Q4, switch Q1 and Q3 identically, and switch Q2 and Q4 identically for buck-boost converting (e.g., buck-boost mode or buck-boost operation). For example, the electronic device (101) (e.g., the controller (260)) can PWM switch (e.g., alternately control) a first pair of Q1 and Q3, and a second pair of Q2 and Q4, for buck-boost converting (e.g., buck-boost mode or buck-boost operation).

[0056] For example, referring to FIG. 4, buck-boost converting (e.g., buck-boost mode or buck-boost operation) can be understood. Referring to (a) of FIG. 4, the electronic device (101) (e.g., controller (260)) can alternately control the first switch (441) and the second switch (442), alternately control the third switch (443) and the fourth switch (444), and equally control the first switch (441) and the third switch (443), and equally control the second switch (442) and the fourth switch (444). FIG. 4 (b) and (c) are graphs showing the current (e.g., IL) and voltage (VL) of at least one inductor (445) included in the converter (240) when the operating mode of the converter (240) is the buck-boost mode. Referring to FIG. 4 (c), when the operating mode of the converter (240) is the buck-boost mode, while the first switch (441) and the third switch (443) are controlled to be on, the voltage (e.g., VL) of at least one inductor (445) may be the voltage (e.g., Vin) of the battery (230). Referring to (c) of FIG. 4, when the operation mode of the converter (240) is the buck-boost mode, while the second switch (442) and the fourth switch (444) are controlled to be on, the voltage (e.g., VL) of at least one inductor (445) may be the reverse voltage (e.g., -Vo) of the voltage (e.g., Vo) of the load (250). Referring to (b) of FIG. 4, when the operation mode of the converter (240) is the buck-boost mode, while the first switch (441) and the third switch (443) are controlled to be on, the current (e.g., IQ1) of the first switch (441), the current (e.g., IL) of at least one inductor (445), and the current (e.g., IQ3) of the third switch (443) may increase.Referring to (b) of FIG. 4, when the operation mode of the converter (240) is the buck-boost mode, while the second switch (442) and the fourth switch (444) are controlled to be on, the current of the second switch (442) (e.g., IQ2), the current of at least one inductor (445) (e.g., IL), and the current of the fourth switch (444) (e.g., IQ4) may decrease. Referring to (b) of FIG. 4, when the operating mode of the converter (240) is the buck-boost mode, as the first pair (e.g., 441, 443) and the second pair (e.g., 442, 444) among the plurality of switches (441, 442, 443, 444) of the converter (240) are alternately controlled, the current (e.g., IL) of at least one inductor (445) can repeat increasing and decreasing around a current (e.g., 2 [A]) greater than the target current (e.g., 1 [A]).

[0057] For example, referring to FIG. 5, buck converting (e.g., buck mode or buck operation) can be understood. Referring to (a) of FIG. 5, the electronic device (101) (e.g., controller (260)) can alternately control the first switch (441) and the second switch (442), control the third switch (443) to be off, and control the fourth switch (444) to be on, for buck converting (e.g., buck mode or buck operation). (b) and (c) of FIG. 5 are graphs showing the current (e.g., IL) and voltage (VL) of at least one inductor (445) included in the converter (240) when the operation mode of the converter (240) is the buck mode. Referring to (c) of FIG. 5, when the operation mode of the converter (240) is the buck mode, while the first switch (441) and the fourth switch (444) are controlled to be on, the voltage (e.g., VL) of at least one inductor (445) may be the difference (e.g., Vin-Vo) between the voltage (e.g., Vin) of the battery (230) and the voltage (e.g., Vo) of the load (250). Referring to (c) of FIG. 5, when the operation mode of the converter (240) is the buck mode, while the second switch (442) and the fourth switch (444) are controlled to be on, the voltage (e.g., VL) of at least one inductor (445) may be the reverse voltage (e.g., -Vo) of the voltage (e.g., Vo) of the load (250). Referring to (b) of FIG. 5, when the operation mode of the converter (240) is the buck mode, while the first switch (441) and the fourth switch (444) are controlled to be on, the current of the first switch (441) (e.g., IQ1), the current of at least one inductor (445) (e.g., IL), and the current of the fourth switch (444) (e.g., IQ4) may increase.Referring to (b) of FIG. 5, when the operation mode of the converter (240) is the buck mode, while the second switch (442) and the fourth switch (444) are controlled to be on, the current of the second switch (442) (e.g., IQ2), the current of at least one inductor (445) (e.g., IL), and the current of the fourth switch (444) (e.g., IQ4) may decrease. Referring to (b) of FIG. 5, when the operation mode of the converter (240) is the buck mode, among the plurality of switches (441, 442, 443, 444) of the converter (240), the first switch (441) and the second switch (442) are alternately controlled, the third switch (443) is controlled to be off, and the fourth switch (444) is controlled to be on, so that the current (e.g., IL) of at least one inductor (445) can repeat increasing and decreasing around a target current (e.g., 1 [A]). According to one embodiment, referring to FIGS. 4 and 5, the duty cycle when the operation mode of the converter (240) is the buck-boost mode and the duty cycle when the operation mode of the converter (240) is the buck mode may be different. The duty cycle when the operating mode of the converter (240) is buck-boost mode and the duty cycle when the operating mode of the converter (240) is buck mode may be the same.

[0058] For example, referring to FIG. 6, boost converting (e.g., boost mode or boost operation) can be understood. Referring to (a) of FIG. 6, the electronic device (101) (e.g., controller (260)) can alternately control the third switch (443) and the fourth switch (444), control the second switch (442) to be off, and control the first switch (441) to be on for boost converting (e.g., boost mode or boost operation). (b) and (c) of FIG. 6 are graphs showing the current (e.g., IL) and voltage (VL) of at least one inductor (445) included in the converter (240) when the operation mode of the converter (240) is the boost mode. Referring to (c) of FIG. 6, when the operation mode of the converter (240) is the boost mode, while the first switch (441) and the third switch (443) are controlled to be on, the voltage (e.g., VL) of at least one inductor (445) may be the voltage (e.g., Vin) of the battery (230). Referring to (c) of FIG. 5, when the operation mode of the converter (240) is the boost mode, while the first switch (441) and the fourth switch (444) are controlled to be on, the voltage (e.g., VL) of at least one inductor (445) may be the difference (e.g., Vin-Vo) between the voltage (e.g., Vin) of the battery (230) and the voltage (e.g., Vo) of the load (250). Referring to (b) of FIG. 6, when the operation mode of the converter (240) is the boost mode, while the first switch (441) and the third switch (443) are controlled to be on, the current of the first switch (441) (e.g., IQ1), the current of at least one inductor (445) (e.g., IL), and the current of the third switch (443) (e.g., IQ3) can increase.Referring to (b) of FIG. 6, when the operation mode of the converter (240) is the boost mode, while the first switch (441) and the fourth switch (444) are controlled to be on, the current of the first switch (441) (e.g., IQ1), the current of at least one inductor (445) (e.g., IL), and the current of the fourth switch (444) (e.g., IQ4) may decrease. Referring to (b) of FIG. 6, when the operation mode of the converter (240) is the boost mode, among the plurality of switches (441, 442, 443, 444) of the converter (240), the third switch (443) and the fourth switch (444) are alternately controlled, the second switch (442) is controlled to be off, and the first switch (441) is controlled to be on, so that the current (e.g., IL) of at least one inductor (445) can repeat increasing and decreasing around a target current (e.g., 1 [A]). According to one embodiment, referring to FIGS. 5 and 5, the duty cycle when the operation mode of the converter (240) is the buck-boost mode and the duty cycle when the operation mode of the converter (240) is the boost mode may be different. The duty cycle when the operating mode of the converter (240) is buck-boost mode and the duty cycle when the operating mode of the converter (240) is boost mode may be the same.

[0059] Fig. 7 is a diagram illustrating the operation of an electronic device according to a comparative example. Fig. 8 is a circuit diagram of a circuit included in an electronic device according to one embodiment.

[0060] FIG. 8 is a circuit diagram of a circuit included in an electronic device (101) including a first signal generation circuit (810) and a second signal generation circuit (820) according to one embodiment. FIG. 7 is a diagram explaining the operation of an electronic device (101) that does not include a first signal generation circuit (810) and a second signal generation circuit (820) according to a comparative example.

[0061] Referring to FIG. 7, according to a comparative example, the electronic device (101) may not include the first signal generation circuit (810) and the second signal generation circuit (820). Referring to FIGS. 7 and 8, according to a comparative example, the electronic device (101) that does not include the first signal generation circuit (810) and the second signal generation circuit (820) may include the first comparison circuit (851), the PWM control circuit (830), the driving logic circuit (840), the second comparison circuit (852), the third comparison circuit (853), and the NOT gate (854) of FIG. 8. According to a comparative example, an electronic device (101) that does not include a first signal generation circuit (810) and a second signal generation circuit (820) may have the input signals (e.g., Q3_ON and Q1_EXT) of the driving logic circuit (840) disclosed in FIG. 8 changed to other input signals (e.g., BB_ENA and BOOST_ENA).

[0062] Referring to FIG. 7, according to a comparative example, the electronic device (101) can output a Buck_ENA signal based on the input voltage (e.g., Vin) of the converter (240) being greater than the sum (e.g., Vo + VH) of the output voltage (e.g., Vo) of the converter (240) and a specified voltage (e.g., VH) by using the second comparison circuit (852), the third comparison circuit (853), and the NOT gate (854). According to the comparative example, since the input signals of the driving logic circuit (840) are BB_ENA and BOOST_ENA, the operating mode of the converter (240) can be a buck mode based on the output of the Buck_ENA signal. In buck mode, the electronic device (101) (e.g., controller (260)) can alternately control the first switch (441) and the second switch (442), control the third switch (443) to be off, and control the fourth switch (444) to be on.

[0063] Referring to FIG. 7, according to a comparative example, the electronic device (101) may output a BB_ENA signal based on the fact that the input voltage (e.g., Vin) of the converter (240) is less than the sum (e.g., Vo + VH) of the output voltage (e.g., Vo) of the converter (240) and the specified voltage (e.g., VH) and greater than the difference (e.g., Vo - VH) of the output voltage (e.g., Vo) of the converter (240) and the specified voltage (e.g., VH). According to the comparative example, since the input signals of the driving logic circuit (840) are BB_ENA and BOOST_ENA, the operating mode of the converter (240) may be a buck-boost mode based on the output of the BB_ENA signal. In buck-boost mode, the electronic device (101) (e.g., controller (260)) can alternately control the first switch (441) and the second switch (442), alternately control the third switch (443) and the fourth switch (444), and equally control the first switch (441) and the third switch (443), and equally control the second switch (442) and the fourth switch (444).

[0064] Referring to FIG. 7, according to a comparative example, the electronic device (101) can output a BB_ENA signal and a BOOST_ENA signal based on the fact that the input voltage (e.g., Vin) of the converter (240) is smaller than the difference (e.g., Vo - VH) between the output voltage (e.g., Vo) of the converter (240) and a specified voltage (e.g., VH), by using a second comparison circuit (852), a third comparison circuit (853), and a NOT gate (854). According to the comparative example, since the input signals of the driving logic circuit (840) are BB_ENA and BOOST_ENA, the operating mode of the converter (240) can be a boost mode based on the output of the BB_ENA signal and the BOOST_ENA signal. In boost mode, the electronic device (101) (e.g., controller (260)) can control the first switch (441) to be on, the second switch (442) to be off, and the third switch (443) and the fourth switch (444) to be alternately controlled.

[0065] Referring to FIG. 7, according to a comparative example, when switching from buck mode to buck-boost mode, the duty cycles of the third switch (443) and the fourth switch (444) may change abruptly, and when switching from buck-boost mode to boost mode, the duty cycles of the first switch (441) and the second switch (442) may change abruptly. Based on the abrupt change in the duty cycles of the switches (e.g., 441, 442, 443, 444), ripples in the output voltage (e.g., Vo) of the converter (240) may occur.

[0066] Referring to FIG. 8, according to one embodiment, the electronic device (101) may include a first comparison circuit (851). The electronic device (101) (e.g., the controller (260)) may output a control voltage (e.g., Vc) using the first comparison circuit (851). The first comparison circuit (851) may output the control voltage (e.g., Vc) based on an output voltage (e.g., Vo) of the converter (240) and a target voltage (e.g., Vt) of the output voltage of the converter (240). The output voltage (e.g., Vo) of the converter (240) may be a voltage of power provided from the converter (240) to the load (250). The target voltage (e.g., Vt) of the output voltage of the converter (240) may be determined based on the load (250). For example, in order to provide a voltage of 3 [V] to the load (250), the target voltage (e.g., Vt) of the output voltage of the converter (240) may be determined as 3 [V]. The electronic device (101) (e.g., controller (260)) may output a control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of the converter (240) and the target voltage (e.g., Vt) of the output voltage of the converter (240) using the first comparison circuit (851). The electronic device (101) (e.g., controller (260)) may output a control voltage (e.g., Vc) based on the difference between the output voltage (e.g., Vo) of the converter (240) and the target voltage (e.g., Vt), and the integral of the difference using the first comparison circuit (851). The first comparison circuit (851) can output a control voltage (e.g., Vc) by adding the difference between the output voltage (e.g., ELVDD) of the converter (240) and the target voltage (e.g., Vt) and the integral value of the difference.

[0067] Referring to FIG. 8, according to one embodiment, the electronic device (101) may include a pulse width modulation (PWM) control circuit (830). The electronic device (101) (e.g., the controller (260)) may output a basic signal (e.g., a basic PWM signal Q0) using the PWM control circuit (830). The PWM control circuit (830) may output the basic signal (e.g., Q0) based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). The PWM control circuit (830) may include a comparator, an oscillator (OSC), and a control unit. The control unit of the PWM control circuit (830) outputs a basic signal in response to a signal of an oscillator (OSC), and the control unit of the PWM control circuit (830) is reset based on a signal output using a comparator based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw), so that the PWM control circuit (830) can output a basic signal (e.g., basic PWM signal Q0). Referring to FIG. 8, the driving logic circuit (840) and the first signal generation circuit (810) can receive the basic signal (e.g., Q0) output from the PWM control circuit (830), and the second signal generation circuit (820) can receive an inversion of the basic signal (e.g., Q0).

[0068] According to one embodiment, the electronic device (101) may include a first signal generation circuit (810). The electronic device (101) (e.g., the controller (260)) may output a turn-on signal (e.g., Q3_ON) using the first signal generation circuit (810). The first signal generation circuit (810) may output the turn-on signal (e.g., Q3_ON) based on a base signal (e.g., Q0) of a PWM control circuit (830). The first signal generation circuit (810) may include a first limiter (812) and a first one-shot vibrator (811). The first limiter (812) can output a first output signal based on a first value (e.g., Vo-Vin+VH1) obtained by subtracting the input voltage (e.g., Vin) of the converter (240) from the sum of the output voltage (e.g., Vo) of the converter (240) and the first reference voltage (e.g., VH1). The first limiter (812) can not output a signal (e.g., output 0) based on the first value (e.g., Vo-Vin+VH1) being less than or equal to 0. The first limiter (812) can output a signal proportional to the first value (e.g., Vo-Vin+VH1) based on the first value (e.g., Vo-Vin+VH1) exceeding 0 and less than or equal to the first reference value. The first limiter (812) can output a signal proportional to the first reference value (e.g., a signal corresponding to the first reference value) based on the first value (e.g., Vo-Vin+VH1) exceeding the first reference value. The first one-shot vibrator (811) can output a turn-on signal (e.g., Q3_ON) based on the first output signal of the first limiter (812) and the basic signal (e.g., Q0) of the PWM control circuit (830). The electronic device (101) (e.g., the controller (260)) can output a turn-on signal (e.g., Q3_ON) using the first signal generation circuit (810) based on the input voltage of the converter (240) being less than the sum of the output voltage and the first reference voltage.The duty cycle of the turn-on signal (e.g., Q3_ON) can be determined based on a value obtained by subtracting the input voltage (e.g., Vini) from the sum of the output voltage (e.g., Vo) and the first reference voltage (e.g., VH1). As the input voltage (e.g., Vin) of the converter (240) decreases and the first value (e.g., Vo-Vin+VH1) increases, the duty cycle of the turn-on signal (e.g., Q3_ON) output from the first signal generation circuit (810) can increase.

[0069] According to one embodiment, the electronic device (101) may include a first signal generation circuit (810) and may not include a second signal generation circuit (820). According to one embodiment, the electronic device (101) may include a first signal generation circuit (810) and a second signal generation circuit (820). The electronic device (101) (e.g., the controller (260)) may output an extended signal (e.g., Q1_EXT) using the second signal generation circuit (820). The second signal generation circuit (820) may output the extended signal (e.g., Q1_EXT) based on an inversion (e.g., Q0-) of a basic signal (e.g., Q0) of a PWM control circuit (830). The second signal generation circuit (820) may include a second limiter (822) and a second one-shot vibrator (821). The second limiter (822) can output a second output signal based on a second value (e.g., Vo-Vin-VH2) obtained by subtracting the input voltage (e.g., Vin) of the converter (240) from the difference between the output voltage (e.g., Vo) of the converter (240) and a second reference voltage (e.g., VH2). The second reference voltage (e.g., VH2) can be the same as or different from the first reference voltage (e.g., VH1). The second limiter (822) may not output a signal (e.g., output 0) based on the second value (e.g., Vo-Vin-VH2) being less than or equal to 0. The second limiter (822) may output a signal proportional to the second value (e.g., Vo-Vin-VH2) based on the second value (e.g., Vo-Vin-VH2) being greater than 0 and less than or equal to a second reference value. The second reference value may be the same as or different from the first reference value. The second limiter (822) may output a signal proportional to the second reference value (e.g., a signal corresponding to the second reference value) based on the second value (e.g., Vo-Vin-VH2) exceeding the second reference value.The second one-shot vibrator (821) can output an extended signal (e.g., Q1_EXT) based on the second output signal of the second limiter (822) and the inversion (e.g., Q0-) of the base signal (e.g., Q0) of the PWM control circuit (830). The electronic device (101) (e.g., the controller (260)) can output the extended signal (e.g., Q1_EXT) using the second signal generation circuit (820) based on the input voltage of the converter (240) being less than a value obtained by subtracting a second reference voltage from the output voltage of the converter (240). The duty cycle of the extended signal (e.g., Q1_EXT) can be determined based on a value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage. As the input voltage (e.g., Vin) of the converter (240) decreases and the second value (e.g., Vo-Vin-VH2) increases, the duty cycle of the extension signal (e.g., Q1_EXT) output from the second signal generation circuit (820) may increase.

[0070] According to one embodiment, a base signal (e.g., Q0) of a PWM control circuit (830) may be provided to a driving logic circuit (840). A turn-on signal (e.g., Q3_ON) of a first signal generation circuit (810) may be provided to a driving logic circuit (840). An extension signal (e.g., Q1_EXT) of a second signal generation circuit (820) may be provided to a driving logic circuit (840). The driving logic circuit (840) may include an AND gate (843) that outputs a driving signal (e.g., G3) corresponding to a third switch (443) (e.g., Q3) based on the base signal (e.g., Q0) and the turn-on signal (e.g., Q3_ON). The driving logic circuit (830) may include a NOT gate (844) that outputs a driving signal (e.g., G4) corresponding to the fourth switch (444) (e.g., Q4) by inverting a signal output from the AND gate (843). The driving logic circuit (840) may include an OR gate (841) that outputs a driving signal (e.g., G1) corresponding to the first switch (441) (e.g., Q1) based on a base signal (e.g., Q0) and an extension signal (e.g., Q1_EXT). The driving logic circuit (840) may include a NOT gate (842) that outputs a driving signal (e.g., G2) corresponding to the second switch (442) (e.g., Q2) by inverting a signal output from the OR gate (841). The embodiment of FIG. 8 is merely an example, and a combination of a plurality of logic circuits that output the same driving signal as the driving logic circuit (840) of FIG. 8 may be possible. An electronic device (101) (e.g., controller (260)) can control a plurality of switches (e.g., 441, 442, 443, 444) of a converter (240) based on driving signals output from a driving logic circuit (840).

[0071] According to one embodiment, based on a turn-on signal (e.g., Q3_ON) occurring for a time proportional to a difference between an output voltage and an input voltage of the converter (240) based on a base signal (e.g., Q0) of the PWM control circuit (830), the duty cycle of the third switch (443) may gradually increase and the duty cycle of the fourth switch (444) may gradually decrease. When the operation mode of the converter (240) is switched from a buck mode to a buck-boost mode, based on the turn-on signal (e.g., Q3_ON), ​​the duty cycle of the third switch (443) may gradually increase and the duty cycle of the fourth switch (444) may gradually decrease. Based on the duty cycle of the third switch (443) gradually increasing and the duty cycle of the fourth switch (444) gradually decreasing, the operation mode of the converter (240) may gradually switch from a buck mode to a buck-boost mode. Based on the first soft transition mode corresponding to the turn-on signal (e.g., Q3_ON), ​​the operation mode of the converter (240) can be gradually switched from the buck mode to the buck-boost mode. Based on the occurrence of the first soft transition mode corresponding to the turn-on signal (e.g., Q3_ON) between the buck mode and the buck-boost mode, the operation mode of the converter (240) can be gradually switched from the buck mode to the buck-boost mode. Based on the first soft transition mode, the ripple of the output voltage (e.g., Vo) of the converter (240) that occurs when the operation mode of the converter (240) is abruptly switched from the buck mode to the buck-boost mode can be reduced.

[0072] According to one embodiment, the duty cycle of the first switch (441) may gradually increase and the duty cycle of the second switch (442) may gradually decrease based on the occurrence of an extension signal (e.g., Q1_EXT) for a time proportional to the difference between the output voltage and the input voltage of the converter (240) based on the inversion (e.g., Q0-) of the base signal (e.g., Q0) of the PWM control circuit (830). When the operating mode of the converter (240) is switched from the buck-boost mode to the boost mode, the duty cycle of the first switch (441) may gradually increase and the duty cycle of the second switch (442) may gradually decrease based on the extension signal (e.g., Q1_EXT). Based on the duty cycle of the first switch (441) gradually increasing and the duty cycle of the second switch (442) gradually decreasing, the operation mode of the converter (240) can be gradually switched from the buck-boost mode to the boost mode. Based on the second soft transition mode corresponding to the extension signal (e.g., Q1_EXT), the operation mode of the converter (240) can be gradually switched from the buck-boost mode to the boost mode. Based on the second soft transition mode corresponding to the extension signal (e.g., Q1_EXT) occurring between the buck-boost mode and the boost mode, the operation mode of the converter (240) can be gradually switched from the buck-boost mode to the boost mode. Based on the second soft transition mode, the ripple of the output voltage (e.g., Vo) of the converter (240) that occurs when the operation mode of the converter (240) is abruptly switched from the buck-boost mode to the boost mode can be reduced.

[0073] FIG. 9 is a block diagram of an electronic device according to one embodiment. FIG. 10 is a block diagram of an electronic device according to one embodiment. FIG. 11 is a block diagram of an electronic device according to one embodiment.

[0074] Referring to FIG. 9, an embodiment can be understood in which an electronic device (101) includes a first signal generation circuit (810) and a second signal generation circuit (820). In FIG. 9, the driving logic circuit (840) can output first driving signals based on a basic signal (e.g., Q0) of the PWM control circuit (830) and a turn-on signal (e.g., Q3_ON) of the first signal generation circuit (810) when the operation mode of the converter (240) is switched from the buck mode to the buck-boost mode, and can output second driving signals based on a basic signal (e.g., Q0) of the PWM control circuit (830), a turn-on signal (e.g., Q3_ON) of the first signal generation circuit (810), and an extension signal (e.g., Q1_EXT) of the second signal generation circuit (820) when the operation mode of the converter (240) is switched from the buck-boost mode to the boost mode.

[0075] Referring to FIG. 10, an embodiment in which the electronic device (101) includes a first signal generation circuit (810) can be understood. In FIG. 10, the driving logic circuit (840) can output first driving signals based on a basic signal (e.g., Q0) of the PWM control circuit (830) and a turn-on signal (e.g., Q3_ON) of the first signal generation circuit (810) when the operation mode of the converter (240) is switched from a buck mode to a buck-boost mode, and can output second driving signals based on a basic signal (e.g., Q0) of the PWM control circuit (830), a turn-on signal (e.g., Q3_ON) of the first signal generation circuit (810), and a BOOST_ENA signal when the operation mode of the converter (240) is switched from a buck-boost mode to a boost mode.

[0076] Referring to FIG. 11, an embodiment in which the electronic device (101) includes a second signal generation circuit (820) can be understood. In FIG. 11, the driving logic circuit (840) can output first driving signals based on a basic signal (e.g., Q0) and a BB_ENA signal of the PWM control circuit (830) when the operation mode of the converter (240) is switched from a buck mode to a buck-boost mode, and can output second driving signals based on a basic signal (e.g., Q0) and a BB_ENA signal of the PWM control circuit (830) and an extension signal (e.g., Q1_EXT) of the second signal generation circuit (820) when the operation mode of the converter (240) is switched from a buck-boost mode to a boost mode.

[0077] FIG. 12 is a diagram illustrating the operation of an electronic device according to one embodiment. FIG. 13 is a diagram illustrating the operation of an electronic device according to one embodiment. FIG. 14 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0078] FIG. 12 is a graph showing a reduction in the ripple of the current (e.g., IL) of at least one inductor (445) of the converter (240) based on a first soft transition mode corresponding to a turn-on signal (e.g., Q3_ON) and a second soft transition mode corresponding to an extension signal (e.g., Q1_EXT).

[0079] Fig. 13 is a graph showing a process in which the operating mode of the converter (240) gradually switches from a buck mode (e.g., (a) of Fig. 13) to a buck-boost mode (e.g., (d) of Fig. 13) based on a first soft transition mode corresponding to a turn-on signal (e.g., Q3_ON). By switching in the order of (a), (b), (c), and (d) of Fig. 13, the ripple of the output voltage (e.g., Vo) of the converter (240) can be reduced.

[0080] FIG. 14 is a graph showing a process in which the operating mode of the converter (240) gradually switches from a buck-boost mode (e.g., (a) of FIG. 14) to a boost mode (e.g., (d) of FIG. 13) based on a second soft transition mode corresponding to an extension signal (e.g., Q1_EXT). By switching in the order of (a), (b), (c), and (d) of FIG. 14, the ripple of the output voltage (e.g., Vo) of the converter (240) can be reduced.

[0081] FIG. 15 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 16 is a flowchart of a method of operating an electronic device according to one embodiment. FIGS. 15 and 16 can be explained with reference to the previously described embodiment.

[0082] Fig. 15 is an embodiment of outputting driving signals based on a turn-on signal (e.g., Q3_ON).

[0083] At least some of the operations of FIG. 15 may be omitted. The order of the operations of FIG. 15 may be changed. Operations other than those of FIG. 15 may be performed before, during, or after the operations of FIG. 15.

[0084] Referring to FIG. 15, in operation 1501, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a control voltage (e.g., Vc) using the first comparison circuit (851). The electronic device (101) may output the control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of the converter (240) and the target voltage (e.g., Vt) of the output voltage using the first comparison circuit (851). The output of the control voltage (e.g., Vc) may be understood based on the previously described embodiment.

[0085] In operation 1503, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a basic signal (e.g., Q0) using the PWM control circuit (830). The electronic device (101) may output the basic signal (e.g., Q0) based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). The output of the basic signal (e.g., Q0) may be understood based on the previously described embodiment.

[0086] In operation 1505, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a turn-on signal (e.g., Q3_ON) using the first signal generation circuit (810). The electronic device (101) may output the turn-on signal (e.g., Q3_ON) based on a base signal (e.g., Q0). The output of the turn-on signal (e.g., Q3_ON) may be understood based on the previously described embodiment.

[0087] In operation 1507, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output first driving signals using the driving logic circuit (840). The electronic device (101) may output the first driving signals based on a base signal (e.g., Q0) and a turn-on signal (e.g., Q3_ON). The output of the first driving signals may be understood based on the previously described embodiment.

[0088] In operation 1509, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may control a plurality of switches (e.g., 441, 442, 443, 444) of the converter (240) based on the first driving signals. Based on the first driving signals output based on the turn-on signal (e.g., Q3_ON), ​​the duty cycle of at least some (e.g., 443, 444) of the plurality of switches (e.g., 441, 442, 443, 444) of the converter (240) may be gradually changed. The control of the plurality of switches (e.g., 441, 442, 443, 444) of the converter (240) may be understood based on the previously described embodiment.

[0089] Fig. 16 is an embodiment of outputting driving signals based on a turn-on signal (e.g., Q3_ON) and an extension signal (e.g., Q1_EXT).

[0090] At least some of the operations of FIG. 16 may be omitted. The order of the operations of FIG. 16 may be changed. Operations other than those of FIG. 16 may be performed before, during, or after the operations of FIG. 16.

[0091] Referring to FIG. 16, in operation 1601, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a control voltage (e.g., Vc) using the first comparison circuit (851). The electronic device (101) may output the control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of the converter (240) and the target voltage (e.g., Vt) of the output voltage using the first comparison circuit (851). The output of the control voltage (e.g., Vc) may be understood based on the previously described embodiment.

[0092] In operation 1603, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a basic signal (e.g., Q0) using the PWM control circuit (830). The electronic device (101) may output the basic signal (e.g., Q0) based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). The output of the basic signal (e.g., Q0) may be understood based on the previously described embodiment.

[0093] In operation 1605, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a turn-on signal (e.g., Q3_ON) using the first signal generation circuit (810). The electronic device (101) may output the turn-on signal (e.g., Q3_ON) based on a base signal (e.g., Q0). The output of the turn-on signal (e.g., Q3_ON) may be understood based on the previously described embodiment.

[0094] In operation 1607, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output an extended signal (e.g., Q1_EXT) using the second signal generation circuit (820). The electronic device (101) may output the extended signal (e.g., Q1_EXT) based on an inversion (e.g., Q0-) of a basic signal (e.g., Q0). The output of the extended signal (e.g., Q1_EXT) may be understood based on the previously described embodiment.

[0095] In operation 1609, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output second driving signals using the driving logic circuit (840). The electronic device (101) may output the second driving signals based on a base signal (e.g., Q0), a turn-on signal (e.g., Q3_ON), ​​and an extension signal (e.g., Q1_EXT). The output of the second driving signals may be understood based on the previously described embodiment.

[0096] In operation 1611, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may control a plurality of switches (e.g., 441, 442, 443, 444) of the converter (240) based on second driving signals. Based on the second driving signals output based on a turn-on signal (e.g., Q3_ON) and an extension signal (e.g., Q1_EXT), a duty cycle of at least some (e.g., 441, 442) of the plurality of switches (e.g., 441, 442) of the converter (240) may be gradually changed. Control of the plurality of switches (e.g., 441, 442, 443, 444) of the converter (240) may be understood based on the previously described embodiment.

[0097] Those skilled in the art will appreciate that the embodiments described herein may be applied interchangeably, within the scope of their applicability. For example, those skilled in the art will appreciate that at least some operations of one embodiment described herein may be omitted and applied, or at least some operations of one embodiment may be applied in conjunction.

[0098] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those with ordinary skill in the technical field to which this document pertains from the description below.

[0099] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0100] According to one embodiment, an electronic device (101) may include a battery (230), a load (250), a converter (240) for providing power to the load (250) based on power provided from the battery (230), a first comparison circuit (851), a pulse width modulation (PWM) control circuit (830), a first signal generation circuit (810), a driving logic circuit (840), and a controller (120; 260). The controller (120; 260) may be configured to output a control voltage based on an output voltage of the converter (240) and a target voltage of the output voltage by using the first comparison circuit (851). The controller (120; 260) may be configured to output a basic signal based on the control voltage and a sawtooth wave by using the PWM control circuit (830). The controller (120; 260) may be configured to output a turn-on signal based on the basic signal using the first signal generation circuit (810). The controller (120; 260) may be configured to output first driving signals based on the basic signal and the turn-on signal using the driving logic circuit (840). The controller (120; 260) may be configured to control a plurality of switches (441; 442; 443; 444) of the converter (240) based on the first driving signals.

[0101] According to one embodiment, the controller (120; 260) may be configured to output the turn-on signal using the first signal generation circuit (810) based on the input voltage of the converter (240) being less than the sum of the output voltage and the first reference voltage.

[0102] According to one embodiment, the duty cycle of the turn-on signal may be determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

[0103] According to one embodiment, the first signal generation circuit (810) may include a first limiter (812) and a first one-shot vibrator (811). The first limiter (812) may be configured to output a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. The first one-shot vibrator (811) may be configured to output the turn-on signal based on the first output signal and the basic signal. The first output signal may be proportional to the first value based on the first value exceeding 0 and being less than or equal to a first reference value. The first output signal may be proportional to the first reference value based on the first value exceeding the first reference value.

[0104] According to one embodiment, the electronic device (101) may include a second signal generation circuit (820). The controller (120; 260) may be configured to output an extension signal based on the inversion of the basic signal by using the second signal generation circuit (820). The controller (120; 260) may be configured to output second drive signals based on the basic signal, the turn-on signal, and the extension signal by using the drive logic circuit (840). The controller (120; 260) may be configured to control the plurality of switches (441; 442; 443; 444) of the converter (240) based on the second drive signals.

[0105] According to one embodiment, the controller (120; 260) may be configured to output the extension signal using the second signal generation circuit (820) based on the input voltage of the converter (240) being less than a value obtained by subtracting a second reference voltage from the output voltage of the converter (240).

[0106] According to one embodiment, the duty cycle of the extension signal may be determined based on a value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage.

[0107] According to one embodiment, the second signal generation circuit (820) may include a second limiter (822) and a second one-shot vibrator (821). The second limiter (822) may be configured to output a second output signal based on a second value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage. The second one-shot vibrator (821) may be configured to output the extension signal based on the second output signal and the inversion of the basic signal. The second output signal may be proportional to the second value based on the second value exceeding 0 and being less than or equal to a second reference value. The second output signal may be proportional to the second reference value based on the second value exceeding the second reference value.

[0108] According to one embodiment, the converter (240) may include a first switch (441), a second switch (442), a third switch (443), a fourth switch (444), and an inductor. A first terminal of the first switch (441) may be electrically connected to the battery (230). A first terminal of the second switch (442) may be electrically connected to a second terminal of the first switch (441). A second terminal of the second switch (442) may be electrically connected to ground. A first terminal of the third switch (443) may be electrically connected to the load (250). A first terminal of the fourth switch (444) may be electrically connected to a second terminal of the third switch (443). The second terminal of the fourth switch (444) may be electrically connected to ground. The first terminal of the inductor may be electrically connected to the second terminal of the first switch (441). The second terminal of the inductor may be electrically connected to the second terminal of the third switch (443).

[0109] According to one embodiment, the driving logic circuit (840) may include an AND gate configured to output a driving signal corresponding to the third switch (443) based on the basic signal and the turn-on signal.

[0110] According to one embodiment, a method of operating an electronic device (101) may include an operation of outputting a control voltage based on an output voltage of a converter (240) of the electronic device (101) and a target voltage of the output voltage. The method may include an operation of outputting a basic signal based on the control voltage and a sawtooth wave. The method may include an operation of outputting a turn-on signal based on the basic signal. The method may include an operation of outputting first driving signals based on the basic signal and the turn-on signal. The method may include an operation of controlling a plurality of switches (441; 442; 443; 444) of the converter (240) based on the first driving signals.

[0111] According to one embodiment, the operation of outputting the turn-on signal may include an operation of outputting the turn-on signal based on the input voltage of the converter (240) being less than the sum of the output voltage and the first reference voltage.

[0112] According to one embodiment, the duty cycle of the turn-on signal may be determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

[0113] According to one embodiment, the operation of outputting the turn-on signal may include an operation of outputting a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. The operation of outputting the turn-on signal may include an operation of outputting the turn-on signal based on the first output signal and the base signal. The first output signal may be proportional to the first value based on the first value exceeding 0 and being less than or equal to a first reference value. The first output signal may be proportional to the first reference value based on the first value exceeding the first reference value.

[0114] According to one embodiment, the method may include an operation of outputting an extension signal based on an inversion of the basic signal. The method may include an operation of outputting second drive signals based on the basic signal, the turn-on signal, and the extension signal. The method may include an operation of controlling the plurality of switches (441; 442; 443; 444) of the converter (240) based on the second drive signals.

[0115] According to one embodiment, the operation of outputting the extension signal may include an operation of outputting the extension signal based on the input voltage of the converter (240) being less than a value obtained by subtracting a second reference voltage from the output voltage of the converter (240).

[0116] According to one embodiment, the duty cycle of the extension signal may be determined based on a value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage.

[0117] According to one embodiment, the operation of outputting the extended signal may include an operation of outputting a second output signal based on a second value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage. The operation of outputting the extended signal may include an operation of outputting the extended signal based on the second output signal and the inversion of the basic signal. The second output signal may be proportional to the second value based on the second value exceeding 0 and being less than or equal to a second reference value. The second output signal may be proportional to the second reference value based on the second value exceeding the second reference value.

[0118] According to one embodiment, the converter (240) may include a first switch (441), a second switch (442), a third switch (443), a fourth switch (444), and an inductor. A first terminal of the first switch (441) may be electrically connected to the battery (230). A first terminal of the second switch (442) may be electrically connected to a second terminal of the first switch (441). A second terminal of the second switch (442) may be electrically connected to ground. A first terminal of the third switch (443) may be electrically connected to the load (250). A first terminal of the fourth switch (444) may be electrically connected to a second terminal of the third switch (443). The second terminal of the fourth switch (444) may be electrically connected to ground. The first terminal of the inductor may be electrically connected to the second terminal of the first switch (441). The second terminal of the inductor may be electrically connected to the second terminal of the third switch (443).

[0119] According to one embodiment, the driving logic circuit (840) may include an AND gate configured to output a driving signal corresponding to the third switch (443) based on the basic signal and the turn-on signal.

[0120] According to one embodiment, a computer-readable recording medium storing instructions set to perform at least one operation by a controller (260) of an electronic device (101) may include an operation of outputting a control voltage based on an output voltage of a converter (240) of the electronic device (101) and a target voltage of the output voltage. The at least one operation may include an operation of outputting a basic signal based on the control voltage and a sawtooth wave. The at least one operation may include an operation of outputting a turn-on signal based on the basic signal. The at least one operation may include an operation of outputting first driving signals based on the basic signal and the turn-on signal. The at least one operation may include an operation of controlling a plurality of switches (441; 442; 443; 444) of the converter (240) based on the first driving signals.

[0121] According to one embodiment, the operation of outputting the turn-on signal may include an operation of outputting the turn-on signal based on the input voltage of the converter (240) being less than the sum of the output voltage and the first reference voltage.

[0122] According to one embodiment, the duty cycle of the turn-on signal may be determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

[0123] According to one embodiment, the operation of outputting the turn-on signal may include an operation of outputting a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. The operation of outputting the turn-on signal may include an operation of outputting the turn-on signal based on the first output signal and the base signal. The first output signal may be proportional to the first value based on the first value exceeding 0 and being less than or equal to a first reference value. The first output signal may be proportional to the first reference value based on the first value exceeding the first reference value.

[0124] According to one embodiment, the at least one operation may include an operation of outputting an extension signal based on an inversion of the basic signal. The at least one operation may include an operation of outputting second drive signals based on the basic signal, the turn-on signal, and the extension signal. The at least one operation may include an operation of controlling the plurality of switches (441; 442; 443; 444) of the converter (240) based on the second drive signals.

[0125] According to one embodiment, the operation of outputting the extension signal may include an operation of outputting the extension signal based on the input voltage of the converter (240) being less than a value obtained by subtracting a second reference voltage from the output voltage of the converter (240).

[0126] According to one embodiment, the duty cycle of the extension signal may be determined based on a value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage.

[0127] According to one embodiment, the operation of outputting the extended signal may include an operation of outputting a second output signal based on a second value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage. The operation of outputting the extended signal may include an operation of outputting the extended signal based on the second output signal and the inversion of the basic signal. The second output signal may be proportional to the second value based on the second value exceeding 0 and being less than or equal to a second reference value. The second output signal may be proportional to the second reference value based on the second value exceeding the second reference value.

[0128] According to one embodiment, the converter (240) may include a first switch (441), a second switch (442), a third switch (443), a fourth switch (444), and an inductor. A first terminal of the first switch (441) may be electrically connected to the battery (230). A first terminal of the second switch (442) may be electrically connected to a second terminal of the first switch (441). A second terminal of the second switch (442) may be electrically connected to ground. A first terminal of the third switch (443) may be electrically connected to the load (250). A first terminal of the fourth switch (444) may be electrically connected to a second terminal of the third switch (443). The second terminal of the fourth switch (444) may be electrically connected to ground. The first terminal of the inductor may be electrically connected to the second terminal of the first switch (441). The second terminal of the inductor may be electrically connected to the second terminal of the third switch (443).

[0129] According to one embodiment, the driving logic circuit (840) may include an AND gate configured to output a driving signal corresponding to the third switch (443) based on the basic signal and the turn-on signal.

[0130] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0131] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0132] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0133] Various embodiments of the present document may be implemented as software (e.g., a program) including one or more instructions stored on a storage medium that can be read by a machine (e.g., an electronic device). For example, a processor (e.g., a controller) of the machine may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0134] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product 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 may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0135] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (101), Battery (230); load (250); A converter (240) that provides power to the load (250) based on the power provided from the battery (230); First comparison circuit (851); PWM (pulse width modulation) control circuit (830); First signal generating circuit (810); driving logic circuit (840); and Contains a controller (120; 260), The above controller (120; 260) Using the first comparison circuit (851), a control voltage is output based on the output voltage of the converter (240) and the target voltage of the output voltage. Using the above PWM control circuit (830), a basic signal is output based on the control voltage and the sawtooth wave, Using the above first signal generating circuit (810), a turn-on signal is output based on the basic signal, Using the above driving logic circuit (840), first driving signals are output based on the basic signal and the turn-on signal, Based on the above first driving signals, it is configured to control a plurality of switches (441; 442; 443; 444) of the converter (240). Electronic devices (101).

2. In paragraph 1, The above controller (120; 260) Based on the input voltage of the above converter (240) being less than the sum of the output voltage and the first reference voltage, the first signal generating circuit (810) is configured to output the turn-on signal. Electronic devices (101).

3. In paragraph 1 or 2, The duty cycle of the turn-on signal is determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. Electronic devices (101).

4. In any one of paragraphs 1 to 3, The above first signal generating circuit (810) includes a first limiter (812) and a first one-shot vibrator (811). The above first limiter (812) is configured to output a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage, The above first one-shot vibrator (811) is configured to output the turn-on signal based on the first output signal and the basic signal, The first output signal is proportional to the first value based on the first value exceeding 0 and being less than or equal to the first reference value, The first output signal is proportional to the first reference value, based on the first value exceeding the first reference value. Electronic device (101).

5. In any one of paragraphs 1 to 4, Further comprising a second signal generating circuit (820), The above controller (120; 260) Using the above second signal generating circuit (820), an extension signal is output based on the inversion of the basic signal, Using the above driving logic circuit (840), second driving signals are output based on the basic signal, the turn-on signal, and the extension signal. Based on the second driving signals, the plurality of switches (441; 442; 443; 444) of the converter (240) are configured to be controlled. Electronic device (101).

6. In any one of paragraphs 1 to 5, The above controller (120; 260) Based on the input voltage of the converter (240) being less than a value obtained by subtracting the second reference voltage from the output voltage of the converter (240), the second signal generation circuit (820) is configured to output the extension signal. Electronic device (101).

7. In any one of paragraphs 1 to 6, The duty cycle of the above extension signal is determined based on a value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage. Electronic device (101).

8. In any one of paragraphs 1 to 7, The second signal generating circuit (820) includes a second limiter (822) and a second one-shot vibrator (821). The second limiter (822) is configured to output a second output signal based on a second value obtained by subtracting the input voltage from a value obtained by subtracting the second reference voltage from the output voltage. The second one-shot vibrator (821) is configured to output the extension signal based on the second output signal and the inversion of the basic signal, The second output signal is proportional to the second value based on the second value exceeding 0 and being less than or equal to the second reference value, The second output signal is proportional to the second reference value, based on the second value exceeding the second reference value. Electronic device (101).

9. In any one of paragraphs 1 to 8, The above converter (240) includes a first switch (441), a second switch (442), a third switch (443), a fourth switch (444), and an inductor. The first stage of the above first switch (441) is electrically connected to the battery (230), The first terminal of the second switch (442) is electrically connected to the second terminal of the first switch (441), The second terminal of the above second switch (442) is electrically connected to ground, The first stage of the third switch (443) is electrically connected to the load (250), The first stage of the above fourth switch (444) is electrically connected to the second stage of the above third switch (443), The second stage of the above fourth switch (444) is electrically connected to ground, The first terminal of the above inductor is electrically connected to the second terminal of the first switch (441), The second terminal of the above inductor is electrically connected to the second terminal of the third switch (443). Electronic device (101).

10. In any one of paragraphs 1 to 9, The above driving logic circuit (840) is An AND gate configured to output a driving signal corresponding to the third switch (443) based on the above basic signal and the turn-on signal, Electronic device (101).

11. In the operating method of an electronic device (101), An operation of outputting a control voltage based on the output voltage of the converter (240) of the electronic device (101) and the target voltage of the output voltage, An operation for outputting a basic signal based on the above control voltage and sawtooth wave, Based on the above basic signal, an operation of outputting a turn-on signal, An operation of outputting first driving signals based on the above basic signal and the turn-on signal, An operation including controlling a plurality of switches (441; 442; 443; 444) of the converter (240) based on the first driving signals. method.

12. In paragraph 11, The operation of outputting the above turn-on signal is: An operation of outputting the turn-on signal based on the input voltage of the converter (240) being less than the sum of the output voltage and the first reference voltage, method.

13. In clause 11 or 12, The duty cycle of the turn-on signal is determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. method.

14. A computer readable recording medium storing instructions set to perform at least one operation by a controller (120; 260) of an electronic device (101), wherein the at least one operation is: An operation of outputting a control voltage based on the output voltage of the converter (240) of the electronic device (101) and the target voltage of the output voltage, An operation for outputting a basic signal based on the above control voltage and sawtooth wave, Based on the above basic signal, an operation of outputting a turn-on signal, An operation of outputting first driving signals based on the above basic signal and the turn-on signal, An operation including controlling a plurality of switches (441; 442; 443; 444) of the converter (240) based on the first driving signals. Recording medium.

15. In paragraph 14, The operation of outputting the above turn-on signal is: An operation of outputting the turn-on signal based on the input voltage of the converter (240) being less than the sum of the output voltage and the first reference voltage, Recording medium.

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