Electronic device including converter for providing power to load and operation method thereof

Abstract

This electronic device may be configured to: output a synchronization signal on the basis of an input voltage and a reference voltage of a converter; output a first control voltage on the basis of an output voltage and a target voltage of the converter; apply a gain to the first control voltage on the basis of the synchronization signal; output a second control voltage on the basis of the first control voltage to which the gain is applied and a signal related to the current of an inductor of the converter; output a PWM signal on the basis of the second control voltage and a sawtooth wave; and control a plurality of switches of the converter on the basis of the PWM signal. Various other embodiments are also possible.

Description

Electronic device including a converter for providing power to a load and a method of operating the same

[0001] The present disclosure relates to an electronic device including a converter for providing power to a load and a method of operating the same, according to one embodiment.

[0002] An organic light-emitting diode (OLED) is a type of LED (light-emitting diode) semiconductor device composed of layers of organic compounds. OLED displays are attracting attention as a next-generation display that will replace liquid crystal displays (LCDs), and many companies are actively researching them. OLEDs offer several advantages: their self-luminous nature eliminates the need for a backlight, unlike LCDs; this allows for thinner displays; they are lightweight; and they offer clear readability outdoors. OLEDs also offer significantly faster response times than LCDs, and their power consumption decreases when displaying dark images, resulting in superior power efficiency in real-world environments.

[0003] When the driving voltage of OLED is 4.6 [V], the lithium-ion battery of a mobile device has an operating voltage of 3 [V] to 4.5 [V], so a boost converter circuit can be designed to generate a voltage of 4.6 [V] based on the operating voltage of the battery.

[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 configured to provide power to the load based on power provided by the battery, the converter including a plurality of switches including a first switch and a second switch, a first comparison circuit, a second comparison circuit, a PWM control circuit, a third comparison circuit, a first acceleration circuit, and a controller. The controller may be configured to output a synchronization signal based on an input voltage of the converter and a reference voltage using the third comparison circuit. The controller may be configured to output a first control voltage based on an output voltage of the converter and a target voltage using the first comparison circuit. The controller may be configured to apply a gain to the first control voltage based on the synchronization signal using the first acceleration circuit. The controller may be configured to output a second control voltage based on the first control voltage to which the gain has been applied and a signal related to a current of an inductor of the converter using the second comparison circuit. The controller may be configured to output a PWM signal based on the second control voltage and the sawtooth wave using the PWM control circuit. The controller may be configured to control the plurality of switches of the converter based on the PWM signal.

[0006] According to one embodiment, a method of operating an electronic device may include outputting a synchronization signal based on an input voltage and a reference voltage of a converter of the electronic device. The method may include outputting a first control voltage based on an output voltage of the converter and a target voltage. The method may include applying a gain to the first control voltage based on the synchronization signal. The method may include outputting a second control voltage based on the first control voltage to which the gain is applied and a signal related to a current of an inductor of the converter. The method may include outputting a PWM signal based on the second control voltage and a sawtooth wave using the PWM control circuit. The method may include controlling a plurality of switches of the converter based on the PWM signal.

[0007] According to one embodiment, a computer-readable recording medium storing instructions configured to cause a controller of an electronic device to perform at least one operation may include: outputting a synchronization signal based on an input voltage and a reference voltage of a converter of the electronic device. The at least one operation may include outputting a first control voltage based on an output voltage of the converter and a target voltage. The at least one operation may include applying a gain to the first control voltage based on the synchronization signal. The at least one operation may include outputting a second control voltage based on the first control voltage to which the gain is applied and a signal related to a current of an inductor of the converter. The at least one operation may include outputting a PWM signal based on the second control voltage and a sawtooth wave using the PWM control circuit. The at least one operation may include controlling a plurality of switches of the converter based on the PWM signal.

[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. 4A is a circuit diagram of a circuit included in an electronic device according to one embodiment.

[0012] FIG. 4b is a diagram illustrating the operation of an electronic device according to one embodiment.

[0013] FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0014] Figure 6 is a drawing explaining the operation of an electronic device according to a comparative example.

[0015] Figure 7 is a drawing explaining the operation of an electronic device according to a comparative example.

[0016] Figure 8 is a drawing explaining the operation of an electronic device according to a comparative example.

[0017] FIG. 9 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0018] FIG. 10 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0019] FIG. 11 is a flowchart of a method of operating an electronic device according to one embodiment.

[0020] FIG. 12 is a flowchart of a method of operating an electronic device according to one embodiment.

[0021] FIG. 13 is a flowchart of a method of operating an electronic device according to one embodiment.

[0022] FIG. 14 is a flowchart of a method of operating an electronic device according to one embodiment.

[0023] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0024] 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)).

[0025] 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.

[0026] 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.

[0027] 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).

[0028] 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).

[0029] 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).

[0030] 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.

[0031] 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.

[0032] 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).

[0033] 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.

[0034] 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.

[0035] 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).

[0036] 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.

[0037] 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.

[0038] 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).

[0039] 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.

[0040] 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).

[0041] 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.

[0042] 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).

[0043] 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.

[0044] 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)).

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] According to one embodiment, the operation of the electronic device (101) may be controlled by the controller (260) of the electronic device (101). 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) (e.g., one or more controllers including the processor (120) of FIG. 1), and hereinafter, even when a plurality of controllers (260) are implemented, for the convenience of explanation, “operation of the electronic device (101)” or “operation of the controller (260)” will be described.

[0050] 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).

[0051] 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).

[0052] 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).

[0053] FIG. 4A is a circuit diagram of a circuit included in an electronic device according to one embodiment. FIG. 4A may be described with reference to previously described embodiments, FIG. 4B, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, and FIG. 10. FIG. 4B is a diagram explaining the operation of the electronic device according to one embodiment. FIG. 5 is a diagram explaining the operation of the electronic device according to one embodiment. FIG. 6 is a diagram explaining the operation of the electronic device according to a comparative example. FIG. 7 is a diagram explaining the operation of the electronic device according to a comparative example. FIG. 8 is a diagram explaining the operation of the electronic device according to a comparative example. FIG. 9 is a diagram explaining the operation of the electronic device according to one embodiment. FIG. 10 is a diagram explaining the operation of the electronic device according to one embodiment.

[0054] Referring to FIG. 4A, according to one embodiment, an electronic device (101) may include a power circuit (210), a charger circuit (220), a battery (230), a converter (240), and a load (250). The electronic device (101) may include a capacitor (491) and a capacitor (492). The electronic device (101) may include a first comparison circuit (410), a second comparison circuit (420), and a third comparison circuit (430). The electronic device (101) may include a pulse width modulation (PWM) control circuit (440). The electronic device (101) may include a first acceleration circuit (450). The electronic device (101) may include a second acceleration circuit (460). The connection structure of the charger circuit (220), the battery (230), and the converter (240) of FIG. 4A may correspond to FIG. 2. For convenience of explanation, the following description will be made with reference to FIG. 4A and FIG. 2, but the description of FIG. 4A may also be applied to the embodiment of the connection structure of the charger circuit (220), the battery (230), and the converter (240) of FIG. 3. For example, the converter (240), the first comparison circuit (410), the second comparison circuit (420), the third comparison circuit (430), the first acceleration circuit (450), and the second acceleration circuit (460) of FIG. 4A may also be applied to the embodiment of the connection structure of the charger circuit (220), the battery (230), and the converter (240) of FIG. 3.

[0055] Referring to FIG. 4A, according to one embodiment, the converter (240) may include a plurality of switches (401, 402) (e.g., Q1, Q2) and an inductor (403). The plurality of switches (401, 402) (e.g., Q1, Q2) may include a first switch (401) (e.g., Q1) and a second switch (402) (e.g., Q2). The first switch (401) may include a transistor (e.g., a metal-oxide-semiconductor field-effect transistor (MOSFET)) and a diode (e.g., a body diode). The second switch (402) (e.g., Q2) may include a transistor (e.g., a MOSFET) and a diode (e.g., a body diode). The electronic device (101) (e.g., controller (260)) can control the converter (240) by controlling a plurality of switches (401, 402) (e.g., Q1, Q2) of the converter (240). The electronic device (101) (e.g., controller (260)) can control the plurality of switches (401, 402) (e.g., Q1, Q2) of the converter (240) based on a control signal (e.g., PWM signal) (e.g., VG1, VG2 of FIG. 5). The electronic device (101) (e.g., controller (260)) can control the plurality of switches (401, 402) (e.g., Q1, Q2) of the converter (240) based on a PWM signal output through a PWM control circuit (440). The electronic device (101) (e.g., controller (260)) can control the first switch (401) (e.g., Q1) based on a driving gate signal (e.g., driving voltage) (e.g., VG1 of FIG. 5) of the transistor of the first switch (401) (e.g., Q1). The electronic device (101) (e.g., controller (260)) can control the second switch (402) (e.g., Q2) based on a driving gate signal (e.g., driving voltage) (e.g., VG2 of FIG. 5) of the transistor of the second switch (402) (e.g., Q2).

[0056] According to one embodiment, the electronic device (101) (e.g., the controller (260)) can control a plurality of switches (401, 402) (e.g., Q1, Q2) of the converter (240) based on an operation mode (e.g., a synchronous mode or an asynchronous mode) of the converter (240). The electronic device (101) (e.g., the controller (260)) can determine the operation mode (e.g., a synchronous mode or an asynchronous mode) of the converter (240) based on an input voltage (e.g., Vsys) of the converter (240) and a reference voltage (e.g., VTH) of the input voltage. For example, the converter (240) can operate in the synchronous mode based on the input voltage (e.g., Vsys) of the converter (240) being lower than or equal to a reference voltage (e.g., VTH). For example, based on the input voltage (e.g., Vsys) of the converter (240) exceeding the reference voltage (e.g., VTH), the converter (240) may operate in a synchronous mode. The electronic device (101) (e.g., the controller (260)) may PWM-switch (e.g., alternately control) the first switch (401) (e.g., Q1) and the second switch (402) (e.g., Q2) for the synchronous mode (or synchronous operation). PWM-switching (e.g., alternately control) the first switch (401) (e.g., Q1) and the second switch (402) (e.g., Q2) may be referred to as a synchronous mode or synchronous operation. For example, the electronic device (101) (e.g., controller (260)) may perform PWM switching on the first switch (401) (e.g., Q1) and may not apply a driving gate signal (e.g., driving voltage) to the second switch (402) (e.g., Q2) for an asynchronous mode (or asynchronous operation). The fact that the driving gate signal is not applied to the transistor of the second switch (402) (e.g., Q2) may be referred to as an asynchronous mode or asynchronous operation.While a driving gate signal (e.g., a driving voltage) is not applied to the second switch (402) (e.g., Q2) (e.g., to the transistor of the second switch (402) (e.g., Q2)), the second switch (402) (e.g., Q2) can operate as a body diode. While a driving gate signal (e.g., a driving voltage) is not applied to the second switch (402) (e.g., Q2) (e.g., to the transistor of the second switch (402) (e.g., Q2)), a current (e.g., IQ2) applied to the second switch (402) (e.g., Q2) can flow through the diode (e.g., the body diode) of the second switch (402) (e.g., Q2). As the current flows through the diode (e.g., the body diode) of the second switch (402) (e.g., Q2), a voltage drop (e.g., VF of FIG. 5) can occur.

[0057] Referring to FIG. 5, while a driving voltage (e.g., VG1) is applied to the first switch (401) and a driving voltage (e.g., VG2) is not applied to the second switch (402), the voltage (e.g., VL) of the inductor (403) of the converter (240) may be a battery voltage (e.g., VBAT). While a driving voltage (e.g., VG1) is applied to the first switch (401) and a driving voltage (e.g., VG2) is not applied to the second switch (402), the current (e.g., IL) of the inductor (403) of the converter (240) may increase. While the driving voltage (e.g., VG1) is not applied to the first switch (401) and the driving voltage (e.g., VG2) is applied to the second switch (402), the voltage (e.g., VL) of the inductor (403) of the converter (240) may be the difference (e.g., VBAT-Vo) between the battery voltage (e.g., VBAT) and the output voltage (e.g., Vo) (e.g., ELVDD) of the converter (240). While the driving voltage (e.g., VG1) is not applied to the first switch (401) and the driving voltage (e.g., VG2) is applied to the second switch (402), the current (e.g., IL) of the inductor (403) of the converter (240) may decrease. While the driving voltage (e.g., VG1) is not applied to the first switch (401) and the driving voltage (e.g., VG2) is not applied to the second switch (402), the voltage (e.g., VL) of the inductor (403) of the converter (240) may be VBAT + VF - Vo. While the driving voltage (e.g., VG1) is not applied to the first switch (401) and the driving voltage (e.g., VG2) is not applied to the second switch (402), the current (e.g., IL) of the inductor (403) of the converter (240) may decrease.

[0058] Referring to FIG. 4A, according to one embodiment, the electronic device (101) may include a third comparison circuit (430). The electronic device (101) (e.g., the controller (260)) may use the third comparison circuit (430) to determine the operation mode (e.g., synchronous mode or asynchronous mode) of the converter (240). The third comparison circuit (430) may output a signal (e.g., a synchronization signal) (e.g., SYNC of FIG. 4A) related to the operation mode of the converter (240) based on an input voltage of the converter (240) (e.g., Vsys or VBAT) and a reference voltage (e.g., VTH) of the input voltage of the converter (240). The electronic device (101) (e.g., controller (260)) can determine the operation mode (e.g., synchronous mode or asynchronous mode) of the converter (240) based on the synchronization signal output through the third comparison circuit (430). The electronic device (101) (e.g., controller (260)) can control a plurality of switches (401, 402) (e.g., Q1, Q2) of the converter (240) based on the synchronization signal output through the third comparison circuit (430). For example, a signal (e.g., synchronization signal) (e.g., SYNC in FIG. 4A) related to the operation mode of the converter (240) may include a first signal (e.g., a first synchronization signal) and a second signal (e.g., a second synchronization signal). For example, a first signal (e.g., a first synchronization signal) may correspond to a synchronous mode of the converter (240), and a second signal (e.g., a second synchronization signal) may correspond to an asynchronous mode of the converter (240). The electronic device (101) (e.g., a controller (260)) may output a first signal (e.g., a first synchronization signal) corresponding to the synchronous mode of the converter (240) using the third comparison circuit (430) based on whether an input voltage (e.g., Vsys or VBAT) of the converter (240) is lower than or equal to a reference voltage (e.g., VTH).A first signal corresponding to the synchronous mode (e.g., a first synchronization signal) (e.g., SYNC = High) may cause a driving voltage (e.g., VG2) to be applied to the second switch (402). For example, the first signal (e.g., the first synchronization signal) (e.g., SYNC = High) may be applied to a logic circuit (444) (e.g., an AND gate) of the PWM control circuit (440), thereby causing a driving voltage (e.g., VG2) to be applied to the second switch (402). The electronic device (101) (e.g., the controller (260)) may output a second signal (e.g., a second synchronization signal) corresponding to the asynchronous mode of the converter (240) using the third comparison circuit (430) based on the input voltage (e.g., Vsys or VBAT) of the converter (240) exceeding a reference voltage (e.g., VTH). A second signal corresponding to the asynchronous mode (e.g., a second synchronization signal) (e.g., SYNC = Low) may cause the second switch (402) not to apply a driving voltage (e.g., VG2). For example, by applying the second signal (e.g., the second synchronization signal) (e.g., SYNC = Low) to a logic circuit (444) (e.g., an AND gate) of the PWM control circuit (440), the second switch (402) may not be applied a driving voltage (e.g., VG2).

[0059] Referring to FIG. 4A, according to one embodiment, the electronic device (101) may include a first comparison circuit (410). The electronic device (101) (e.g., the controller (260)) may output a first control voltage (e.g., VC1) using the first comparison circuit (410). The first comparison circuit (410) may output the first control voltage (e.g., VC1) based on an output voltage (e.g., Vo) of the converter (240) (e.g., ELVDD) and a target voltage (e.g., Vt) of the output voltage of the converter (240). The output voltage (e.g., ELVDD) 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 4.6 [V] to the load (250), the target voltage (e.g., Vt) of the output voltage of the converter (240) may be determined as 4.6 [V]. The reference voltage (e.g., VTH) of the input voltage of the converter (240) may be lower than the target voltage (e.g., Vt) of the output voltage of the converter (240). For example, when the target voltage (e.g., Vt) of the output voltage of the converter (240) is 4.6 [V], the reference voltage (e.g., VTH) of the input voltage of the converter (240) may be 4.3 [V]. The electronic device (101) (e.g., controller (260)) can output a first control voltage (e.g., VC1) based on an output voltage (e.g., ELVDD) of the converter (240) and a target voltage (e.g., Vt) of the output voltage of the converter (240) using a first comparison circuit (410). For example, the electronic device (101) (e.g., controller (260)) can output a first control voltage (e.g., VC1) based on a difference between an output voltage (e.g., ELVDD) of the converter (240) and a target voltage (e.g., Vt) and an integral value of the difference using the first comparison circuit (410).The first comparison circuit (410) can output a first control voltage (e.g., VC1) 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.

[0060] Referring to FIG. 4A, according to one embodiment, the electronic device (101) may include a first acceleration circuit (450). The electronic device (101) (e.g., the controller (260)) may apply a gain to a first control voltage (e.g., VC1) output through a first comparison circuit (410) using the first acceleration circuit (450). The electronic device (101) (e.g., the controller (260)) may apply a gain to the first control voltage (e.g., VC1) based on a synchronization signal (e.g., SYNC) output through a third comparison circuit (430) using the first acceleration circuit (450). The electronic device (101) (e.g., controller (260)) may apply a first gain (e.g., 1) to the first control voltage (e.g., VC1) using the first acceleration circuit (450) based on the first synchronization signal (e.g., SYNC = High). For example, the electronic device (101) (e.g., controller (260)) may apply a first gain (e.g., 1) to the first control voltage (e.g., VC1) using the first multiplication circuit (451) of the first acceleration circuit (450). The electronic device (101) (e.g., controller (260)) may apply a first gain (e.g., 1) to the first control voltage (e.g., VC1) using the first acceleration circuit (450) based on the input voltage (e.g., Vsys or VBAT) of the converter (240) being less than or equal to the reference voltage (e.g., VTH). The application of a gain of 1 may mean that the first control voltage (e.g., VC1) is output as is. The electronic device (101) (e.g., controller (260)) may apply a second gain (e.g., Ka) to the first control voltage (e.g., VC1) using the first acceleration circuit (450) based on a second synchronization signal (e.g., SYNC = Low). For example, the electronic device (101) (e.g., controller (260)) can apply a second gain (e.g., Ka) to the first control voltage (e.g., VC1) using the second multiplication circuit (452) of the first acceleration circuit (450).The electronic device (101) (e.g., controller (260)) may apply a second gain (e.g., Ka) to the first control voltage (e.g., VC1) using the first acceleration circuit (450) based on the input voltage (e.g., Vsys or VBAT) of the converter (240) exceeding the reference voltage (e.g., VTH). The second gain (e.g., Ka) may be greater than the first gain (e.g., 1). The second gain (e.g., Ka) may be determined by a target voltage (e.g., Vt) of the output voltage of the converter (240) and a voltage drop (e.g., VF) caused by current flowing through a diode (e.g., a body diode) of the second switch (402). For example, Ka = (Vt + VF) / Vt. For example, if Vt = 4.6 [V] and VF = 0.7 [V], Ka may be (4.6 + 0.7) / 4.6 (approximately 1.15). The application of a gain of Ka may mean that the first control voltage (e.g., VC1) increases by a factor of Ka. The first control voltage (e.g., VC1) with the gain applied may be output through the first acceleration circuit (450).

[0061] Referring to FIG. 4A, according to one embodiment, the electronic device (101) may include a second comparison circuit (420). The electronic device (101) (e.g., the controller (260)) may output a second control voltage (e.g., VC2) using the second comparison circuit (420). The second comparison circuit (420) may compare a signal (e.g., Vcs) related to an inductor current (e.g., IL) of an inductor (403) of a converter (240) with a first control voltage (e.g., VC1). The second comparison circuit (420) may output a second control voltage (e.g., VC2) based on the signal (e.g., Vcs) related to an inductor current (e.g., IL) of an inductor (403) of a converter (240) and the first control voltage (e.g., VC1). A signal (e.g., Vcs) related to an inductor current (e.g., IL) may be a signal (e.g., voltage) proportional to the inductor current (e.g., IL) of an inductor (403) of a converter (240). The inductor current (e.g., IL) may be a current flowing in the inductor (403) of the converter (240) (e.g., by power from a battery (230)). The electronic device (101) (e.g., controller (260)) may output a second control voltage (e.g., VC2) based on the signal (e.g., Vcs) related to the inductor current (e.g., IL) of the inductor (403) of the converter (240) and a first control voltage (e.g., VC1) to which a gain (e.g., 1 or Ka) is applied by a first acceleration circuit (450), using a second comparison circuit (420). For example, the electronic device (101) (e.g., controller (260)) can output a second control voltage (e.g., VC2) based on the difference between a signal (e.g., Vcs) related to the inductor current (e.g., IL) of the inductor (403) of the converter (240) and a first control voltage (e.g., VC1) to which a gain (e.g., 1 or Ka) is applied by the first acceleration circuit (450), and an integral value of the difference, using the second comparison circuit (420).The second comparison circuit (420) can output a second control voltage (e.g., VC2) by adding the difference between a signal (e.g., Vcs) related to the inductor current (e.g., IL) of the inductor (403) of the converter (240) and a first control voltage (e.g., VC1) to which a gain (e.g., 1 or Ka) is applied by the first acceleration circuit (450), and an integral value of the difference.

[0062] Referring to FIG. 4A, according to one embodiment, the electronic device (101) may include a PWM control circuit (440). The electronic device (101) (e.g., the controller (260)) may output a PWM signal (e.g., VG1, VG2) using the PWM control circuit (440). The PWM control circuit (440) may output the PWM signal (e.g., VG1, VG2) based on an operation mode of the converter (240) (e.g., a signal related to the operation mode (e.g., a synchronization signal; SYNC)) and a second control voltage (e.g., VC2). For example, the PWM signal may include a first signal (e.g., VG1) corresponding to a first switch (401) (e.g., Q1), and a second signal (e.g., VG2) corresponding to a second switch (402) (e.g., Q2). The PWM control circuit (440) may include an oscillator (442), a control unit (443), and at least one logic circuit (e.g., AND, OR, NAND, NOR, XOR, XNOR). For example, referring to FIG. 4A, at least one logic circuit (e.g., AND, OR, NAND, NOR, XOR, XNOR) of the PWM control circuit (440) may include a first logic circuit (445) (e.g., NOT gate) and a second logic circuit (444) (e.g., AND gate), but this is only an example. The PWM control circuit (440) may include a comparator (441). The comparator (441) may compare a second control voltage (e.g., VC2) and a sawtooth wave (e.g., Vsaw). The control unit (443) can output an output signal (e.g., Q or Q-) based on the comparison result of the second control voltage (e.g., VC2) and the sawtooth wave (e.g., Vsaw) by the comparator (441) and the signal of the oscillator (442). The PWM control circuit (440) can output a PWM signal (e.g., VG1, VG2) based on the output signal (e.g., Q or Q-) of the control unit (443) and the operation mode of the converter (240) (e.g., a signal related to the operation mode (e.g., a synchronization signal; SYNC)).The electronic device (101) (e.g., controller (260)) can control the duty cycle of the PWM signal (e.g., VG1, VG2) using the PWM control circuit (440). Based on the duty cycle of the PWM signal (e.g., VG1, VG2) being controlled, the output voltage (e.g., ELVDD) of the converter (240) can be controlled. For example, the electronic device (101) (e.g., controller (260)) can control the duty cycle of the PWM signal (e.g., VG1, VG2) output through the PWM control circuit (440) using the second acceleration circuit (460). The second acceleration circuit (460) can provide a sawtooth wave (e.g., Vsaw) to the PWM control circuit (440). Based on the sawtooth wave (e.g., Vsaw) provided from the second acceleration circuit (460) to the PWM control circuit (440), the duty cycle of the PWM signal (e.g., VG1, VG2) can be controlled.

[0063] According to one embodiment, the electronic device (101) may not include the comparator (441) and the second acceleration circuit (460) of the PWM control circuit (440). When the electronic device (101) does not include the comparator (441) and the second acceleration circuit (460) of the PWM control circuit (440), the second control voltage (e.g., VC2) output through the second comparison circuit (420) may be provided to the control unit (443) of the PWM control circuit (440).

[0064] According to one embodiment, the electronic device (101) may include a second acceleration circuit (460). The electronic device (101) (e.g., the controller (260)) may provide a sawtooth wave (e.g., Vsaw) to the PWM control circuit (440) using the second acceleration circuit (460). The electronic device (101) (e.g., the controller (260)) may apply an offset voltage to the sawtooth wave (463) (e.g., Vpp) based on a synchronization signal (e.g., SYNC) using the second acceleration circuit (460). By applying the offset voltage (e.g., Kb or -Kb) to the sawtooth wave (463), the duty cycle of the PWM signal (e.g., VG1, VG2) may be controlled. Referring to FIG. 4b, it is possible to understand the control of the offset voltage applied to the sawtooth wave (463) and the duty cycle of the PWM signal (e.g., VG1, VG2) based on the offset voltage. For reference, FIG. 8 is a graph showing the inductor current (e.g., IL) and the duty cycle of the PWM signal (e.g., VG1, VG2) when the offset voltage (e.g., Kb or -Kb) is not applied to the sawtooth wave (463). Referring to FIG. 4a and FIG. 8, the inductor current (e.g., IL) of the inductor (403) of the converter (240) may correspond to the current IQ1 of the first switch (401) during a first period (e.g., while current flows to the first switch (401)) and may correspond to the current IQ2 of the second switch (402) during a second period (e.g., while current flows to the second switch (402). The graph at the top of Fig. 8 may represent the duty cycle in the synchronous mode of the converter (240), and the graph at the bottom of Fig. 8 may represent the duty cycle in the asynchronous mode of the converter (240). Referring again to Fig. 4b, the signal (e.g., CLK from OSC) of the oscillator (442) may be provided to the control unit (443) of the PWM control circuit (440) at t1, t3, and t5.The electronic device (101) (e.g., controller (260)) can provide a driving voltage (e.g., VG1) to the first switch (401) (e.g., Q1) based on the fact that the sawtooth wave (e.g., Vsaw) is less than the second control voltage (e.g., VC2) using the PWM control circuit (440). For example, in FIG. 4B, no offset voltage may be applied to the sawtooth wave (463) from t1 to t3. While no offset voltage is applied to the sawtooth wave (463) from t1 to t3, a driving voltage (e.g., VG1) may be provided to the first switch (401) (e.g., Q1) from t1 to t2 based on the comparison result between the sawtooth wave (e.g., Vsaw) and the second control voltage (e.g., VC2). For example, in FIG. 4b, a negative offset voltage (e.g., -Kb) may be applied to the sawtooth wave (463) from t3 to t5. While the negative offset voltage (e.g., -Kb) is applied to the sawtooth wave (463) from t3 to t5, a driving voltage (e.g., VG1) may be provided to the first switch (401) (e.g., Q1) from t3 to t4 based on the comparison result between the sawtooth wave (e.g., Vsaw) and the second control voltage (e.g., VC2). In FIG. 4b, the period from t3 to t4 may be longer than the period from t1 to t2.

[0065] Referring to FIG. 4A, according to one embodiment, the second acceleration circuit (460) may include a one-shot vibrator (e.g., 471, 481). The second acceleration circuit (460) may apply an offset voltage (e.g., Kb or -Kb) to the sawtooth wave (463) using the one-shot vibrator (e.g., 471, 481). For example, the second acceleration circuit (460) may include a first one-shot vibrator (471) and a second one-shot vibrator (481). The second acceleration circuit (460) may include a resistor (472), a capacitor (473), and a diode (474) corresponding to the first one-shot vibrator (471). The second acceleration circuit (460) may include a resistor (482), a capacitor (483), and a diode (484) corresponding to the second one-shot vibrator (481). The second acceleration circuit (460) may output a first control signal (e.g., Dacc1) using the first one-shot vibrator (471). The first one-shot vibrator (471) may output a first signal (e.g., OS1) for a specified period of time based on a clock signal (e.g., CLK). The first control signal (e.g., Dacc1) may be output based on the first signal (e.g., OS1). The second acceleration circuit (460) can apply a negative offset voltage (e.g., -Kb) to the sawtooth wave (463) based on a first control signal (e.g., Dacc1) corresponding to the first one-shot vibrator (471). The second acceleration circuit (460) can apply a negative offset voltage (e.g., -Kb) to the sawtooth wave (463) using a subtractor (461) based on a first control signal (e.g., Dacc1) corresponding to the first one-shot vibrator (471). The second acceleration circuit (460) can output a second control signal (e.g., Dacc2) using the second one-shot vibrator (481).The second one-shot vibrator (481) can output a second signal (e.g., OS2) for a specified period of time based on a clock signal (e.g., CLK). A second control signal (e.g., Dacc2) can be output based on the second signal (e.g., OS2). The second acceleration circuit (460) can apply a positive offset voltage (e.g., Kb) to the sawtooth wave (463) based on the second control signal (e.g., Dacc2) corresponding to the second one-shot vibrator (481). The second acceleration circuit (460) can apply a positive offset voltage (e.g., Kb) to the sawtooth wave (463) using an adder (462) based on the second control signal (e.g., Dacc2) corresponding to the second one-shot vibrator (481). The offset voltage (e.g., Kb or -Kb) may be determined by a reference voltage (e.g., VTH), a target voltage (e.g., Vt), and a voltage drop (e.g., VF). The voltage drop (e.g., VF) may be caused by current flowing through a diode (e.g., a body diode) of the second switch (402). The reference voltage (e.g., VTH) may be a reference voltage of an input voltage (e.g., Vsys or VBAT) of the converter (240). The target voltage (e.g., Vt) may be a target voltage of an output voltage (e.g., Vo or ELVDD) of the converter (240). For example, Kb may be equal to (1- VTH / (Vt+VF)) - (1- VTH / Vt). For example, if VTH = 4.3[V], Vt = 4.6[V], and VF = 0.7[V], then Kb = (1-4.3 / (4.6+0.7))-(1-4.3 / 4.6) (approximately 0.123). For example, a positive offset voltage Kb (approximately 0.123 = 12.3%) applied to a sawtooth wave (463) of 1[V] (e.g., Vpp) may mean that a positive offset voltage Kb corresponding to 12.3% of 1[V] is applied to the sawtooth wave (463) of 1[V] (e.g., Vpp). For example, a negative offset voltage -Kb (approximately -0.123 = -12.3%) may be applied, that is, an offset voltage -Kb corresponding to -12.3% of 1 [V] may be applied to the sawtooth wave (463) (e.g., Vpp). As described above, referring to FIG. 4b, based on the application of a negative offset voltage -Kb to the sawtooth wave (463) (e.g., Vpp), the duty cycle of the PWM signal (e.g., VG1, VG2) may be lengthened. Based on the application of a positive offset voltage Kb to the sawtooth wave (463) (e.g., Vpp), the duty cycle of the PWM signal (e.g., VG1, VG2) may be shortened. The second acceleration circuit (460) may include a logic circuit (470) (e.g., NOT gate). Based on the logic circuit (470) (e.g., NOT gate), the timing at which the first control signal (e.g., Dacc1) corresponding to the first one-shot vibrator (471) is generated and the timing at which the second control signal (e.g., Dacc2) corresponding to the second one-shot vibrator (481) is generated may be different. Referring to FIG. 9, the first signal (e.g., OS1) or the second signal (e.g., OS2) may be generated based on a change in the synchronization signal. For example, referring to FIG. 9, the first signal (e.g., OS1) corresponding to the first one-shot vibrator (471) may be generated based on the synchronization signal (e.g., SYNC) changing from the first signal (e.g., the first synchronization signal) (e.g., SYNC = High) corresponding to the synchronous mode to the second signal (e.g., the second synchronization signal) (e.g., SYNC = Low) corresponding to the asynchronous mode. For example, referring to FIG. 9, a second signal (e.g., OS2) corresponding to the second one-shot vibrator (481) may be generated based on a synchronization signal (e.g., SYNC) changing from a second signal (e.g., second synchronization signal) (e.g., SYNC = Low) corresponding to an asynchronous mode to a first signal (e.g., first synchronization signal) (e.g., SYNC = High) corresponding to a synchronous mode.

[0066] FIG. 6 and FIG. 7 are drawings explaining the operation of an electronic device according to a comparative example. FIG. 7 is an enlarged graph of the graph of FIG. 6. Referring to FIG. 6 and FIG. 7, when the operation mode of the converter (240) changes from a synchronous mode to an asynchronous mode (e.g., when t = 1 [ms] in FIG. 6 and FIG. 7), a ripple may occur in the output voltage (e.g., Vo or ELVDD) of the converter (240) due to a voltage drop caused by current flowing through the diode (e.g., body diode) of the second switch (402). FIG. 6 and FIG. 7 illustrate a case where the electronic device (101) does not include the first acceleration circuit (450), the second acceleration circuit (460), and the comparator (441) of the PWM control circuit (440), and the electronic device (101) (e.g., the controller (260)) can eliminate ripple of the output voltage (e.g., Vo or ELVDD) of the converter (240) by controlling the peak of the inductor current (e.g., IL) of the inductor (403) of the converter (240) based on a control signal (e.g., Vc) based on a signal (e.g., Vcs) related to the inductor current (e.g., IL) of the inductor (403) of the converter (240). However, as shown in FIGS. 6 and 7, when the electronic device (101) does not include the first acceleration circuit (450), the second acceleration circuit (460), and the comparator (441) of the PWM control circuit (440), the time taken for the ripple of the output voltage (e.g., Vo or ELVDD) of the converter (240) to be eliminated may be slower than in the embodiment of FIG. 4A. For example, referring to FIG. 9, when the electronic device (101) includes an acceleration circuit (e.g., the first acceleration circuit (450) and / or the second acceleration circuit (460)), the ripple of the output voltage (e.g., Vo or ELVDD) of the converter (240) may be eliminated faster than in the embodiments of FIGS. 6 and 7 due to the gain of the first acceleration circuit (450) and / or the offset voltage of the second acceleration circuit (460).For example, referring to FIG. 10, the time taken for the ripple of the output voltage (e.g., ELVDD_1) of the converter (240) of the embodiment of FIG. 9 to be eliminated may be shorter than the time taken for the ripple of the output voltage (e.g., ELVDD_0) of the converter (240) of the embodiment of FIG. 6 and FIG. 7 to be eliminated. Referring to FIG. 9, it can be understood that the gain (e.g., Ka) of the first acceleration circuit (450) is continuously applied in an asynchronous mode, and the offset voltage (e.g., -Kb or Kb) of the second acceleration circuit (460) is applied for a specified period of time from the moment the operation mode of the converter (240) is changed.

[0067] Fig. 11 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 11 can be explained with reference to the previously described embodiment.

[0068] At least some of the operations of FIG. 11 may be omitted. The order of the operations of FIG. 11 may be changed. Operations other than those of FIG. 11 may be performed before, during, or after the operations of FIG. 11.

[0069] Referring to FIG. 11, in operation 1101, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a synchronization signal (e.g., SYNC of FIG. 4A). The electronic device (101) may output the synchronization signal (e.g., SYNC of FIG. 4A) based on an input voltage of the converter (240) (e.g., Vsys or VBAT of FIG. 4A) and a reference voltage of the input voltage (e.g., VTH of FIG. 4A) using the third comparison circuit (430). The synchronization signal (e.g., SYNC of FIG. 4A) may include a first signal (e.g., a first synchronization signal) corresponding to a synchronous mode (e.g., SYNC = High) and a second signal (e.g., a second synchronization signal) corresponding to an asynchronous mode (e.g., SYNC = Low). For example, the electronic device (101) may output a first synchronization signal that causes the second switch (402) to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) being less than or equal to a reference voltage using the third comparison circuit (430). For example, the electronic device (101) may output a second synchronization signal that causes the second switch (402) not to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) being greater than or equal to a reference voltage using the third comparison circuit (430). Operation 1101 may be understood with reference to FIG. 4A.

[0070] In operation 1103, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a first control signal (e.g., a first control voltage) (e.g., VC1 of FIG. 4A). The electronic device (101) may output the first control signal (e.g., the first control voltage) (e.g., VC1 of FIG. 4A) based on the output voltage of the converter (240) (e.g., ELVDD of FIG. 4A) and the target voltage (e.g., Vt of FIG. 4A) using the first comparison circuit (410). Operation 1103 may be understood with reference to FIG. 4A.

[0071] In operation 1105, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may apply a gain (e.g., 1 or Ka in FIG. 4A) to a first control signal (e.g., a first control voltage) (e.g., VC1 in FIG. 4A). The electronic device (101) may apply a gain (e.g., 1 or Ka in FIG. 4A) to the first control signal (e.g., the first control voltage) (e.g., VC1 in FIG. 4A) based on a synchronization signal of operation 1101, using the first acceleration circuit (450). For example, the electronic device (101) may apply a first gain (e.g., 1) to the first control voltage (e.g., VC1) based on a first synchronization signal (e.g., SYNC = High) using the first acceleration circuit (450). For example, the electronic device (101) may apply a second gain (e.g., Ka) to the first control voltage (e.g., VC1) based on a second synchronization signal (e.g., SYNC = Low) using the first acceleration circuit (450). The second gain (e.g., Ka) may be greater than the first gain (e.g., 1). The second gain (e.g., Ka) may be determined by a target voltage of the output voltage of the converter (240) (e.g., Vt of FIG. 4A) and a diode voltage drop of the second switch (402) (e.g., VF of FIG. 5). The operation 1105 may be understood with reference to FIG. 4A.

[0072] In operation 1107, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a second control signal (e.g., a second control voltage) (e.g., VC2 of FIG. 4A). The electronic device (101) may output a second control voltage (e.g., VC2 of FIG. 4A) based on a signal (e.g., Vcs of FIG. 4A) related to an inductor current (e.g., IL) of an inductor (403) of a converter (240) using a second comparison circuit (420), and a first control voltage (e.g., VC1 of FIG. 4A) to which a gain (e.g., 1 or Ka of FIG. 4A) is applied by a first acceleration circuit (450). Operation 1107 may be understood with reference to FIG. 4A.

[0073] In operation 1109, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a PWM signal (e.g., VG1, VG2 of FIG. 5). The electronic device (101) may output the PWM signal using the PWM control circuit (440). The electronic device (101) may output the PWM signal based on the second control voltage of operation 1107 (e.g., VC2 of FIG. 4A). According to one embodiment, when the electronic device (101) includes the second acceleration circuit (460), the electronic device (101) may output the PWM signal based on the second control voltage of operation 1107 (e.g., VC2 of FIG. 4A) and the sawtooth wave (e.g., Vsaw of FIG. 4A) provided from the second acceleration circuit (460) using the PWM control circuit (440). According to one embodiment, when the electronic device (101) does not include the second acceleration circuit (460), the electronic device (101) may output a PWM signal based on the second control voltage (e.g., VC2 of FIG. 4A) of operation 1107 using the PWM control circuit (440). Operation 1109 may be understood with reference to FIG. 4A.

[0074] In operation 1111, according to one embodiment, the electronic device (101) (e.g., the controller (260)) can control a plurality of switches (e.g., 401, 402 of FIG. 4A) of the converter (240) based on a PWM signal (e.g., VG1, VG2 of FIG. 5). The electronic device (101) can control a plurality of switches (e.g., 401, 402 of FIG. 4A) of the converter (240) based on a PWM signal (e.g., VG1, VG2 of FIG. 5) output through the PWM control circuit (440). For example, the PWM signal may include a first signal (e.g., VG1 of FIG. 5) corresponding to a first switch (401) (e.g., Q1 of FIG. 4a), and a second signal (e.g., VG2 of FIG. 5) corresponding to a second switch (402) (e.g., Q2 of FIG. 4a). The 1111 operation can be understood with reference to FIG. 4a.

[0075] Fig. 12 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 12 can be explained with reference to the previously described embodiment.

[0076] At least some of the operations of FIG. 12 may be omitted. The order of the operations of FIG. 12 may be changed. Operations other than those of FIG. 12 may be performed before, during, or after the operations of FIG. 12.

[0077] Referring to FIG. 12, in operation 1201, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may compare an input voltage of the converter (240) (e.g., Vsys or VBAT of FIG. 4A) and a reference voltage of the input voltage (e.g., VTH of FIG. 4A) using the third comparison circuit (430). The electronic device (101) may determine the operation mode of the converter (240) based on the comparison result using the third comparison circuit (430). For example, the electronic device (101) may determine the operation mode of the converter (240) as a synchronous mode based on the input voltage of the converter (240) being lower than or equal to the reference voltage using the third comparison circuit (430). For example, the electronic device (101) can use the third comparison circuit (430) to determine whether the operation mode of the converter (240) is asynchronous, based on whether the input voltage of the converter (240) exceeds the reference voltage. The operation 1201 can be understood with reference to FIG. 4A.

[0078] In operation 1203, according to one embodiment, the electronic device (101) (e.g., controller (260)) may output a first synchronization signal that causes the second switch (402) to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) being less than or equal to a reference voltage, using the third comparison circuit (430). Operation 1203 may be understood with reference to FIG. 4A.

[0079] In operation 1205, according to one embodiment, the electronic device (101) (e.g., controller (260)) may output a second synchronization signal using the third comparison circuit (430) to cause the second switch (402) not to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) exceeding the reference voltage. Operation 1205 may be understood with reference to FIG. 4A.

[0080] Fig. 13 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 13 can be explained with reference to the previously described embodiment.

[0081] At least some of the operations of FIG. 13 may be omitted. The order of the operations of FIG. 13 may be changed. Operations other than those of FIG. 13 may be performed before, during, or after the operations of FIG. 13.

[0082] Referring to FIG. 13, in operation 1301, according to one embodiment, the electronic device (101) (e.g., controller (260)) may use a third comparison circuit (430) to compare an input voltage of the converter (240) (e.g., Vsys or VBAT of FIG. 4A) and a reference voltage of the input voltage (e.g., VTH of FIG. 4A). Operation 1301 may be understood with reference to FIG. 4A.

[0083] In operation 1303, according to one embodiment, the electronic device (101) (e.g., controller (260)) may output a first synchronization signal to cause the second switch (402) to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) being less than or equal to a reference voltage, using the third comparison circuit (430). Operation 1303 may be understood with reference to FIG. 4A.

[0084] In operation 1305, according to one embodiment, the electronic device (101) (e.g., controller (260)) may apply a first gain (e.g., 1) to a first control voltage output through a first comparison circuit (401) based on a first synchronization signal using the first acceleration circuit (450). Operation 1305 may be understood with reference to FIG. 4A.

[0085] In operation 1307, according to one embodiment, the electronic device (101) (e.g., controller (260)) may output a second synchronization signal using the third comparison circuit (430) to cause the second switch (402) not to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) exceeding the reference voltage. Operation 1307 may be understood with reference to FIG. 4A.

[0086] In operation 1309, according to one embodiment, the electronic device (101) (e.g., controller (260)) may apply a second gain (e.g., Ka) to the first control voltage output through the first comparison circuit (401) based on the second synchronization signal using the first acceleration circuit (450). Operation 1309 may be understood with reference to FIG. 4A.

[0087] Fig. 14 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 14 can be explained with reference to the previously described embodiment.

[0088] At least some of the operations of FIG. 14 may be omitted. The order of the operations of FIG. 14 may be changed. Operations other than those of FIG. 14 may be performed before, during, or after the operations of FIG. 14.

[0089] Referring to FIG. 14, in operation 1401, according to one embodiment, the electronic device (101) (e.g., controller (260)) may output a first synchronization signal to cause the second switch (402) to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) being less than or equal to a reference voltage, using the third comparison circuit (430).

[0090] In operation 1403, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a second synchronization signal that causes the second switch (402) not to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) exceeding the reference voltage by using the third comparison circuit (430). The synchronization signal may be changed from the first synchronization signal to the second synchronization signal based on the input voltage of the converter (240) rising near the reference voltage. The electronic device (101) may output the second synchronization signal while outputting the first synchronization signal. Outputting the first synchronization signal may be outputting the synchronization signal (SYNC) of FIG. 9 as 1. Outputting the second synchronization signal may be outputting the synchronization signal (SYNC) of FIG. 9 as 0. Outputting the synchronization signal (SYNC) of FIG. 9 as 0 may be not outputting the synchronization signal. The change in the synchronization signal can be understood with reference to operations 1401 and 1403. Operations 1401 and 1403 can be understood with reference to Fig. 4a.

[0091] In operation 1405, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may apply a first offset voltage (e.g., -Kb) to the sawtooth wave (e.g., Vpp (463) of FIG. 4A) based on a change in the synchronization signal (e.g., from a first synchronization signal to a second synchronization signal). The electronic device (101) may apply a first offset voltage (e.g., -Kb) to the sawtooth wave (e.g., Vpp (463) of FIG. 4A) using the second acceleration circuit (460) based on a change from the first synchronization signal causing the second switch (402) to apply a driving voltage to the second switch (402) to a second synchronization signal causing the second switch (402) not to apply a driving voltage. The electronic device (101) can apply a first offset voltage (e.g., -Kb) to a sawtooth wave (e.g., Vpp (463) of FIG. 4A) for a specified period of time using the second acceleration circuit (460). The 1405 operation can be understood with reference to FIG. 4A.

[0092] In operation 1407, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may output a first synchronization signal to cause the second switch (402) to apply a driving voltage (e.g., VG2) based on the input voltage of the converter (240) being less than or equal to a reference voltage using the third comparison circuit (430). Based on the input voltage of the converter (240) dropping near the reference voltage, the synchronization signal may be changed from the second synchronization signal to the first synchronization signal. The electronic device (101) may output the first synchronization signal while outputting the second synchronization signal. The change in the synchronization signal may be understood with reference to operations 1405 and 1407. Operations 1405 and 1407 may be understood with reference to FIG. 4A.

[0093] In operation 1409, according to one embodiment, the electronic device (101) (e.g., the controller (260)) may apply a second offset voltage (e.g., Kb) to the sawtooth wave (e.g., Vpp (463) of FIG. 4A) based on a change in the synchronization signal (e.g., a change from a second synchronization signal to a first synchronization signal). The electronic device (101) may apply a second offset voltage (e.g., Kb) to the sawtooth wave (e.g., Vpp (463) of FIG. 4A) using the second acceleration circuit (460) based on a change from the second synchronization signal causing the second switch (402) not to apply a driving voltage to the first synchronization signal causing the second switch (402) to apply a driving voltage. The electronic device (101) can apply a second offset voltage (e.g., Kb) to a sawtooth wave (e.g., Vpp (463) of FIG. 4A) for a specified period of time using the second acceleration circuit (460). The first offset voltage (e.g., -Kb) of the 1405 operation and the second offset voltage (e.g., Kb) of the 1409 operation can be determined by the reference voltage of the input voltage of the converter (240), the target voltage of the output voltage of the converter (240), and the diode voltage drop of the second switch (402). The 1409 operation can be understood with reference to FIG. 4A.

[0094] 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, and at least some operations of one embodiment may be applied interchangeably.

[0095] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned can be clearly understood by a person having ordinary knowledge in the technical field to which this document belongs from the description below.

[0096] 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.

[0097] According to one embodiment, an electronic device (101) may include a battery (230), a load (250), a converter (240) configured to provide power to the load (250) based on power provided from the battery (230) and including a plurality of switches (401; 402) including a first switch (401) and a second switch (402), a first comparison circuit (410), a second comparison circuit (420), a pulse width modulation (PWM) control circuit (440), a third comparison circuit (430), a first acceleration circuit (450), and a controller (120; 260). The controller (120; 260) may be configured to output a synchronization signal based on an input voltage and a reference voltage of the converter (240) using the third comparison circuit (430). The controller (120; 260) may be configured to output a first control voltage based on the output voltage of the converter (240) and the target voltage using the first comparison circuit (410). The controller (120; 260) may be configured to apply a gain to the first control voltage based on the synchronization signal using the first acceleration circuit (450). The controller (120; 260) may be configured to output a second control voltage based on the first control voltage to which the gain is applied and a signal related to the current of the inductor (403) of the converter (240) using the second comparison circuit (420). The controller (120; 260) may be configured to output a PWM signal based on the second control voltage and a sawtooth wave using the PWM control circuit (440). The above controller (120; 260) may be configured to control the plurality of switches (401; 402) of the converter (240) based on the PWM signal.

[0098] According to one embodiment, the controller (120; 260) may be configured to output a first synchronization signal that causes the second switch (402) to apply a driving voltage based on the input voltage of the converter (240) being less than or equal to the reference voltage using the third comparison circuit (430). The controller (120; 260) may be configured to output a second synchronization signal that causes the second switch (402) not to apply the driving voltage based on the input voltage of the converter (240) being greater than the reference voltage using the third comparison circuit (430).

[0099] In one embodiment, the reference voltage may be less than the target voltage.

[0100] According to one embodiment, the controller (120; 260) may be configured to apply a first gain to the first control voltage based on the first synchronization signal using the first acceleration circuit (450). The controller (120; 260) may be configured to apply a second gain to the first control voltage based on the second synchronization signal using the first acceleration circuit (450).

[0101] In one embodiment, the first gain may be 1. The second gain may be greater than the first gain.

[0102] According to one embodiment, the second gain may be determined by the target voltage and the diode voltage drop of the second switch (402).

[0103] According to one embodiment, the electronic device (101) may include a second acceleration circuit (460). The controller (120; 260) may be configured to apply an offset voltage to the sawtooth wave based on the synchronization signal using the second acceleration circuit (460).

[0104] According to one embodiment, the controller (120; 260) may be configured to apply a first offset voltage to the sawtooth wave using the second acceleration circuit (460) based on the synchronization signal changing from a first synchronization signal that causes the second switch (402) to apply a driving voltage to the second switch (402) to a second synchronization signal that causes the second switch (402) not to apply the driving voltage. The controller (120; 260) may be configured to apply a second offset voltage to the sawtooth wave using the second acceleration circuit (460) based on the synchronization signal changing from the second synchronization signal to the first synchronization signal.

[0105] According to one embodiment, the offset voltage may be determined by the reference voltage, the target voltage, and the diode voltage drop of the second switch (402).

[0106] According to one embodiment, the controller (120; 260) may be configured to apply the offset voltage to the sawtooth wave for a specified period of time using the second acceleration circuit (460).

[0107] According to one embodiment, a method of operating an electronic device (101) may include an operation of outputting a synchronization signal based on an input voltage and a reference voltage of a converter (240) of the electronic device (101). The method may include an operation of outputting a first control voltage based on an output voltage of the converter (240) and a target voltage. The method may include an operation of applying a gain to the first control voltage based on the synchronization signal. The method may include an operation of outputting a second control voltage based on the first control voltage to which the gain is applied and a signal related to a current of an inductor (403) of the converter (240). The method may include an operation of outputting a PWM signal based on the second control voltage and a sawtooth wave using the PWM control circuit (440). The above method may include an operation of controlling a plurality of switches (401; 402) of the converter (240) based on the PWM signal.

[0108] According to one embodiment, the operation of outputting the synchronization signal may include an operation of outputting a first synchronization signal that causes the second switch (402) among the plurality of switches (401; 402) including the first switch (401) and the second switch (402) to apply a driving voltage based on the input voltage of the converter (240) being less than or equal to the reference voltage. The operation of outputting the synchronization signal may include an operation of outputting a second synchronization signal that causes the second switch (402) not to apply the driving voltage based on the input voltage of the converter (240) being greater than the reference voltage, using the third comparison circuit (430).

[0109] In one embodiment, the reference voltage may be less than the target voltage.

[0110] According to one embodiment, the operation of applying the gain to the first control voltage may include applying a first gain to the first control voltage based on the first synchronization signal. The operation of applying the gain to the first control voltage may include applying a second gain to the first control voltage based on the second synchronization signal.

[0111] In one embodiment, the first gain may be 1. The second gain may be greater than the first gain.

[0112] According to one embodiment, the second gain may be determined by the target voltage and the diode voltage drop of the second switch (402).

[0113] According to one embodiment, the method may include applying an offset voltage to the sawtooth wave based on the synchronization signal.

[0114] In one embodiment, the operation of applying the offset voltage to the sawtooth wave may include applying a first offset voltage to the sawtooth wave based on the synchronization signal changing from a first synchronization signal that causes the second switch (402) to apply a driving voltage to the second switch (402) to a second synchronization signal that causes the second switch (402) not to apply the driving voltage. The operation of applying the offset voltage to the sawtooth wave may include applying a second offset voltage to the sawtooth wave based on the synchronization signal changing from the second synchronization signal to the first synchronization signal.

[0115] According to one embodiment, the offset voltage may be determined by the reference voltage, the target voltage, and the diode voltage drop of the second switch (402).

[0116] According to one embodiment, the operation of applying the offset voltage to the sawtooth wave may include an operation of applying the offset voltage to the sawtooth wave for a specified period of time.

[0117] According to one embodiment, a computer readable recording medium storing instructions configured to cause a controller (260) of an electronic device (101) to perform at least one operation may include an operation of outputting a synchronization signal based on an input voltage and a reference voltage of a converter (240) of the electronic device (101). The at least one operation may include an operation of outputting a first control voltage based on an output voltage of the converter (240) and a target voltage. The at least one operation may include an operation of applying a gain to the first control voltage based on the synchronization signal. The at least one operation may include an operation of outputting a second control voltage based on the first control voltage to which the gain is applied and a signal related to a current of an inductor (403) of the converter (240). The at least one operation may include an operation of outputting a PWM signal based on the second control voltage and the sawtooth wave using the PWM control circuit (440). The at least one operation may include an operation of controlling a plurality of switches (401; 402) of the converter (240) based on the PWM signal.

[0118] According to one embodiment, in the recording medium, the operation of outputting the synchronization signal may include an operation of outputting a first synchronization signal that causes the second switch (402) among the plurality of switches (401; 402) including the first switch (401) and the second switch (402) to apply a driving voltage based on the input voltage of the converter (240) being less than or equal to the reference voltage. The operation of outputting the synchronization signal may include an operation of outputting a second synchronization signal that causes the second switch (402) not to apply the driving voltage based on the input voltage of the converter (240) being greater than the reference voltage, using the third comparison circuit (430).

[0119] According to one embodiment, in the recording medium, the reference voltage may be less than the target voltage.

[0120] According to one embodiment, in the recording medium, the operation of applying the gain to the first control voltage may include the operation of applying a first gain to the first control voltage based on the first synchronization signal. The operation of applying the gain to the first control voltage may include the operation of applying a second gain to the first control voltage based on the second synchronization signal.

[0121] According to one embodiment, in the recording medium, the first gain may be 1. The second gain may be greater than the first gain.

[0122] According to one embodiment, in the recording medium, the second gain may be determined by the target voltage and the diode voltage drop of the second switch (402).

[0123] According to one embodiment, in the recording medium, the at least one operation may include applying an offset voltage to the sawtooth wave based on the synchronization signal.

[0124] According to one embodiment, in the recording medium, the operation of applying the offset voltage to the sawtooth wave may include applying a first offset voltage to the sawtooth wave based on the synchronization signal changing from a first synchronization signal that causes the second switch (402) to apply a driving voltage to a second synchronization signal that causes the second switch (402) not to apply the driving voltage. The operation of applying the offset voltage to the sawtooth wave may include applying a second offset voltage to the sawtooth wave based on the synchronization signal changing from the second synchronization signal to the first synchronization signal.

[0125] According to one embodiment, in the recording medium, the offset voltage may be determined by the reference voltage, the target voltage, and the diode voltage drop of the second switch (402).

[0126] According to one embodiment, in the recording medium, the operation of applying the offset voltage to the sawtooth wave may include an operation of applying the offset voltage to the sawtooth wave for a specified period of time.

[0127] 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.

[0128] 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.

[0129] 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).

[0130] 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.

[0131] 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.

[0132] 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) configured to provide power to the load (250) based on power provided from the battery (230), and including a plurality of switches (401; 402) including a first switch (401) and a second switch (402); First comparison circuit (410); Second comparison circuit (420); PWM (pulse width modulation) control circuit (440); Third comparison circuit (430); First acceleration circuit (450); and Contains a controller (120; 260), The above controller (120; 260) Using the third comparison circuit (430), a synchronization signal is output based on the input voltage and reference voltage of the converter (240). Using the first comparison circuit (410), the first control voltage is output based on the output voltage of the converter (240) and the target voltage. Using the first acceleration circuit (450), a gain is applied to the first control voltage based on the synchronization signal, Using the second comparison circuit (420), a second control voltage is output based on the signal related to the first control voltage to which the gain is applied and the current of the inductor (403) of the converter (240). Using the above PWM control circuit (440), a PWM signal is output based on the second control voltage and the sawtooth wave, Based on the above PWM signal, the plurality of switches (401; 402) of the converter (240) are configured to be controlled. Electronic device (101).

2. In paragraph 1, The above controller (120; 260) Using the third comparison circuit (430), a first synchronization signal is output to cause the second switch (402) to apply a driving voltage based on the input voltage of the converter (240) being lower than or equal to the reference voltage. Using the third comparison circuit (430), a second synchronization signal is output to cause the second switch (402) not to apply the driving voltage based on the input voltage of the converter (240) exceeding the reference voltage. Electronic device (101).

3. In paragraph 1 or 2, The above reference voltage is less than the above target voltage, Electronic device (101).

4. In any one of paragraphs 1 to 3, The above controller (120; 260) Using the first acceleration circuit (450), a first gain is applied to the first control voltage based on the first synchronization signal, Using the first acceleration circuit (450), a second gain is applied to the first control voltage based on the second synchronization signal, Electronic device (101).

5. In any one of paragraphs 1 to 4, The above first gain is 1, The above second gain is greater than the above first gain. Electronic device (101).

6. In any one of paragraphs 1 to 5, The second gain is determined by the target voltage and the diode voltage drop of the second switch (402). Electronic device (101).

7. In any one of paragraphs 1 to 6, Further comprising a second acceleration circuit (460)(460), The above controller (120; 260) Using the second acceleration circuit (460), an offset voltage is applied to the sawtooth wave based on the synchronization signal. Electronic device (101).

8. In any one of paragraphs 1 to 7, The above controller (120; 260) Based on the above synchronization signal being changed from a first synchronization signal causing the second switch (402) to apply a driving voltage to the second switch (402), to a second synchronization signal causing the second switch (402) not to apply the driving voltage, a first offset voltage is applied to the sawtooth wave using the second acceleration circuit (460), The above synchronization signal is configured to apply a second offset voltage to the sawtooth wave using the second acceleration circuit (460) based on the change from the second synchronization signal to the first synchronization signal. Electronic device (101).

9. In any one of paragraphs 1 to 8, The above offset voltage is determined by the reference voltage, the target voltage, and the diode voltage drop of the second switch (402). Electronic device (101).

10. In any one of paragraphs 1 to 9, The above controller (120; 260) Using the second acceleration circuit (460), the offset voltage is applied to the sawtooth wave for a specified period of time, Electronic device (101).

11. In the operating method of an electronic device (101), An operation of outputting a synchronization signal based on the input voltage and reference voltage of the converter (240) of the above electronic device (101), An operation of outputting a first control voltage based on the output voltage and target voltage of the above converter (240), An operation of applying a gain to the first control voltage based on the above synchronization signal, An operation of outputting a second control voltage based on a signal related to the first control voltage to which the gain is applied and the current of the inductor (403) of the converter (240), An operation of outputting a PWM signal based on the second control voltage and the sawtooth wave using the above PWM control circuit (440), An operation including controlling a plurality of switches (401; 402) of the converter (240) based on the above PWM signal. method.

12. In paragraph 11, The operation of outputting the above synchronization signal is: An operation of outputting a first synchronization signal that causes a driving voltage to be applied to the second switch (402) among the plurality of switches (401; 402) including the first switch (401) and the second switch (402) based on the input voltage of the converter (240) being lower than or equal to the reference voltage, An operation of outputting a second synchronization signal that causes the second switch (402) not to apply the driving voltage based on the input voltage of the converter (240) exceeding the reference voltage by using the third comparison circuit (430). method.

13. In clause 11 or 12, The above reference voltage is less than the above target voltage, method.

14. In any one of paragraphs 11 to 13, The operation of applying the gain to the first control voltage is as follows: An operation of applying a first gain to the first control voltage based on the first synchronization signal; An operation of applying a second gain to the first control voltage based on the second synchronization signal, method.

15. A non-transitory computer readable recording medium storing instructions that, when individually and / or collectively executed by a controller (120; 260) of an electronic device (101), cause the electronic device (101) to perform at least one operation, wherein the at least one operation is: An operation of outputting a synchronization signal based on the input voltage and reference voltage of the converter (240) of the above electronic device (101), An operation of outputting a first control voltage based on the output voltage and target voltage of the above converter (240), An operation of applying a gain to the first control voltage based on the above synchronization signal, An operation of outputting a second control voltage based on a signal related to the first control voltage to which the gain is applied and the current of the inductor (403) of the converter (240), An operation of outputting a PWM signal based on the second control voltage and the sawtooth wave using the above PWM control circuit (440), An operation including controlling a plurality of switches (401; 402) of the converter (240) based on the above PWM signal. Recording medium.

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