Electronic device and operating method thereof

Abstract

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

Description

Technical Field

[0001] This disclosure relates to electronic devices and methods of operation thereof according to embodiments. Background Technology

[0002] A switching regulator (or switching converter) is a circuit that converts direct current (DC) voltage to DC voltage. Buck converters are used for buck conversion, boost converters for boost conversion, and non-inverting buck-boost converters are used to perform both boost and buck conversions. For example, an electronic device including a lithium-ion battery with a voltage between 2.5 [V] and 4.5 [V] depending on its state of charge requires a non-inverting buck-boost converter capable of performing both boost and buck conversions based on the battery voltage to obtain an output voltage of 3.0 [V].

[0003] Non-inverting buck-boost converters have the advantage of stable operation even under wide input voltage variations where buck or boost converters might not operate. However, they are less efficient compared to buck or boost converters due to the relatively large currents in the inductors and switches. Therefore, to increase battery life by improving efficiency, the converter operates in buck mode for most of the voltage periods when the input voltage is higher than the output voltage, in boost mode for most of the voltage periods when the input voltage is lower than the output voltage, and only in buck-boost mode over a range where the input and output voltages are similar, rather than over the entire battery voltage range.

[0004] The above information is presented as relevant technical information to aid in understanding this disclosure. No determination or assertion is made regarding whether any of the above content can be used as prior art in relation to this disclosure. Summary of the Invention

[0005] Technical solution According to an embodiment, an electronic device may include: a battery; a load; a converter configured to provide power to the load based on power supplied from the battery; a first comparator circuit; a pulse width modulation (PWM) control circuit; a first signal generation circuit; a drive logic circuit; and a controller. The controller may be configured to: use the first comparator circuit to output a control voltage based on the output voltage of the converter and a target voltage of the output voltage. The controller may be configured to use the PWM control circuit to output a basic signal based on the control voltage and a sawtooth wave. The controller may be configured to: use the first signal generation circuit to output an on signal based on the basic signal. The controller may be configured to use the drive logic circuit to output a first drive signal based on the basic signal and the on signal. The controller may be configured to control a plurality of switches of the converter based on the first drive signal.

[0006] According to an embodiment, a method for operating an electronic device may include: outputting a control voltage based on an output voltage of a converter in the electronic device and a target voltage of the output voltage. The method may include outputting a basic signal based on the control voltage and a sawtooth wave. The method may include outputting an on signal based on the basic signal. The method may include outputting a first drive signal based on the basic signal and the on signal. The method may include controlling a plurality of switches of the converter based on the first drive signal.

[0007] According to an embodiment, in a computer-readable recording medium storing instructions configured to cause a controller of an electronic device to perform at least one operation, the at least one operation may include: outputting a control voltage based on an output voltage of a converter of the electronic device and a target voltage of the output voltage; outputting a basic signal based on the control voltage and a sawtooth wave; outputting an on signal based on the basic signal; outputting a first drive signal based on the basic signal and the on signal; and controlling a plurality of switches of the converter based on the first drive signal. Attached Figure Description

[0008] Figure 1 This is a block diagram illustrating an electronic device in a network environment according to an embodiment.

[0009] Figure 2 This is a block diagram illustrating an electronic device according to an embodiment.

[0010] Figure 3 This is a block diagram illustrating an electronic device according to an embodiment.

[0011] Figure 4 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment.

[0012] Figure 5 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment.

[0013] Figure 6 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment.

[0014] Figure 7 This is a diagram illustrating the operation of the converter in an electronic device according to a comparative example.

[0015] Figure 8 This is a circuit diagram illustrating a circuit included in an electronic device according to an embodiment.

[0016] Figure 9This is a block diagram illustrating an electronic device according to an embodiment.

[0017] Figure 10 This is a block diagram illustrating an electronic device according to an embodiment.

[0018] Figure 11 This is a block diagram illustrating an electronic device according to an embodiment.

[0019] Figure 12 This is a diagram illustrating the operation of an electronic device according to an embodiment.

[0020] Figure 13 This is a diagram illustrating the operation of an electronic device according to an embodiment.

[0021] Figure 14 This is a diagram illustrating the operation of an electronic device according to an embodiment.

[0022] Figure 15 This is a flowchart illustrating a method for operating an electronic device according to an embodiment.

[0023] Figure 16 This is a flowchart illustrating a method for operating an electronic device according to an embodiment. Detailed Implementation

[0024] Figure 1 This is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments. (Refer to...) Figure 1 In network environment 100, electronic device 101 can communicate with electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or with at least one of electronic device 104 or server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, electronic device 101 can communicate with electronic device 104 via server 108. According to an embodiment, electronic device 101 may include a processor 120, memory 130, input module 150, sound output module 155, display module 160, audio module 170, sensor module 176, interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, user identification module (SIM) 196, or antenna module 197. In some embodiments, at least one of the above components (e.g., connection terminal 178) may be omitted from electronic device 101, or one or more other components may be added to electronic device 101. In some embodiments, some of the components described above (e.g., sensor module 176, camera module 180, or antenna module 197) may be implemented as a single integrated component (e.g., display module 160).

[0025] Processor 120 may run software (e.g., program 140) to control at least one other component (e.g., hardware or software component) of electronic device 101 connected to processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of the data processing or calculation, processor 120 may store commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132, process the commands or data stored in volatile memory 132, and store the result data in non-volatile memory 134. According to embodiments, processor 120 may include a main processor 121 (e.g., central processing unit (CPU) or application processor (AP)) or an auxiliary processor 123 (e.g., graphics processing unit (GPU), neural processing unit (NPU), image signal processor (ISP), sensor central processor, or communication processor (CP)) that is operationally independent of or combined with the main processor 121. For example, when electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121, or may be implemented as part of the main processor 121.

[0026] When the main processor 121 is inactive (e.g., in sleep) state, the auxiliary processor 123 (rather than the main processor 121) can control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190), or when the main processor 121 is active (e.g., running an application), the auxiliary processor 123 can work with the main processor 121 to control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190). According to embodiments, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., camera module 180 or communication module 190) functionally associated with the auxiliary processor 123. According to embodiments, the auxiliary processor 123 (e.g., a neural processing unit) may include hardware architecture dedicated to artificial intelligence model processing. Artificial intelligence models can be generated through machine learning. For example, such learning can be performed via electronic device 101 where artificial intelligence is performed or via a separate server (e.g., server 108). The learning algorithm may include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include multiple layers of artificial neural networks. The artificial neural network may be 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), or a deep Q-network, or a combination of two or more thereof, but is not limited thereto. Additionally or optionally, the artificial intelligence model may include software structures in addition to hardware structures.

[0027] Memory 130 may store various data used by at least one component of electronic device 101 (e.g., processor 120 or sensor module 176). The various data may include, for example, software (e.g., program 140) and input or output data for commands associated with it. Memory 130 may include volatile memory 132 or non-volatile memory 134.

[0028] The program 140 may be stored as software in the memory 130, and the program 140 may include, for example, an operating system (OS) 142, middleware 144, or application 146.

[0029] Input module 150 can receive commands or data from outside electronic device 101 (e.g., a user) that will be used by other components of electronic device 101 (e.g., processor 120). Input module 150 may include, for example, a microphone, mouse, keyboard, keys (e.g., buttons), or digital pen (e.g., stylus).

[0030] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. According to an embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0031] Display module 160 can visually provide information to the outside of electronic device 101 (e.g., to a user). Display module 160 may include, for example, a display, a holographic device, or a projector, and control circuitry for controlling a respective one of the display, holographic device, and projector. According to an embodiment, display module 160 may include a touch sensor adapted to detect touch or a pressure sensor adapted to measure the intensity of the force caused by touch.

[0032] The audio module 170 can convert sound into electrical signals and vice versa. According to an embodiment, the audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or headphones of an external electronic device (e.g., electronic device 102) that is directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0033] Sensor module 176 can detect the operating state of electronic device 101 (e.g., power or temperature) or the environmental state outside electronic device 101 (e.g., user state), and then generate an electrical signal or data value corresponding to the detected state. According to embodiments, sensor module 176 may include, for example, a gesture sensor, gyroscope sensor, atmospheric pressure sensor, magnetic sensor, accelerometer, grip sensor, proximity sensor, color sensor, infrared (IR) sensor, biometric sensor, temperature sensor, humidity sensor, or illuminance sensor.

[0034] Interface 177 may support one or more specific protocols used to enable electronic device 101 to connect directly (e.g., wired) or wirelessly to external electronic devices (e.g., electronic device 102). According to embodiments, interface 177 may include, for example, a High Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital Card (SD) interface, or an audio interface.

[0035] Connection 178 may include a connector, through which electronic device 101 may be physically connected to an external electronic device (e.g., electronic device 102). According to embodiments, connection 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 motion) or electrical stimuli that can be recognized by a user through his touch or kinesthesia. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0037] Camera module 180 can capture still or moving images. According to an embodiment, camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0038] The power management module 188 manages the power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as at least part of, for example, a power management integrated circuit (PMIC).

[0039] Battery 189 can power at least one component of electronic device 101. According to an embodiment, battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable rechargeable battery, or a fuel cell.

[0040] Communication module 190 can support the establishment of a direct (e.g., wired) or wireless communication channel between electronic device 101 and external electronic devices (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. Communication module 190 may include one or more communication processors capable of operating independently of processor 120 (e.g., application processor (AP)) and support direct (e.g., wired) or wireless communication. According to embodiments, communication module 190 may include wireless communication module 192 (e.g., cellular communication module, short-range wireless communication module, or Global Navigation Satellite System (GNSS) communication module) or wired communication module 194 (e.g., local area network (LAN) communication module or power line communication (PLC) module). One of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wi-Fi Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, 5G network, next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip) or as multiple components separate from each other (e.g., multiple chips). The wireless communication module 192 can identify and verify the electronic device 101 in the communication network (such as the first network 198 or the second network 199) using user information (e.g., the International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0041] Wireless communication module 192 can support 5G networks following 4G networks and next-generation communication technologies (such as new radio (NR) access technologies). NR access technologies can support enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), or ultra-reliable low-latency communication (URLLC). Wireless communication module 192 can support high-frequency bands (e.g., millimeter-wave bands) to achieve, for example, high data transmission rates. Wireless communication module 192 can support various technologies used to ensure performance in high-frequency bands, such as, for example, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. Wireless communication module 192 can support various requirements specified in electronic device 101, external electronic devices (e.g., electronic device 104), or network systems (e.g., second network 199). According to an embodiment, the wireless communication module 192 may support peak data rates (e.g., 20 Gbps or greater) for implementing eMBB, lost coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less round trip) for implementing URLLC.

[0042] Antenna module 197 can transmit or receive signals or power to or from the exterior of electronic device 101 (e.g., external electronic device). According to an embodiment, antenna module 197 may include an antenna comprising a radiating element formed of a conductive material or conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, antenna module 197 may include multiple antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as a first network 198 or a second network 199) can be selected from the multiple antennas by, for example, communication module 190 (e.g., wireless communication module 192). Signals or power can then be transmitted or received between communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, additional components besides the radiating element (e.g., a radio frequency integrated circuit (RFIC)) may be additionally incorporated into antenna module 197.

[0043] According to various embodiments, antenna module 197 may form a millimeter-wave antenna module. According to embodiments, the millimeter-wave antenna module may include a printed circuit board, a radio frequency integrated circuit (RFIC), and multiple antennas (e.g., an array antenna), wherein the RFIC is disposed on or adjacent to a first surface (e.g., a bottom surface) of the printed circuit board and is capable of supporting a specified high-frequency band (e.g., a millimeter-wave band), and the multiple antennas are disposed on or adjacent to a second surface (e.g., a top surface or a side surface) of the printed circuit board and are capable of transmitting or receiving signals in the specified high-frequency band.

[0044] At least some of the aforementioned components can be interconnected via an inter-peripheral communication scheme (e.g., bus, general purpose input / output (GPIO), serial peripheral interface (SPI), or mobile industrial processor interface (MIPI)) and can communicatively transmit signals (e.g., commands or data) between them.

[0045] According to an embodiment, commands or data can be sent or received between electronic device 101 and external electronic device 104 via server 108 connected to a second network 199. Each of electronic device 102 or electronic device 104 can be a device of the same type as electronic device 101, or a device of a different type. According to an embodiment, all or some operations that would be performed on electronic device 101 can be performed on one or more of external electronic devices 102, external electronic devices 104, or server 108. For example, if electronic device 101 is required to automatically perform a function or service, or is required to perform a function or service in response to a request from a user or another device, electronic device 101 may request the one or more external electronic devices to perform at least a portion of the function or service, instead of running the function or service, or electronic device 101 may request the one or more external electronic devices to perform at least a portion of the function or service in addition to running the function or service. Upon receiving the request, the one or more external electronic devices may perform at least a portion of the requested function or service, or perform additional functions or services related to the request, and transmit the result of the execution to electronic device 101. Electronic device 101 may provide the result as at least a partial response to the request, with or without further processing. For this purpose, technologies such as cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing may be used. Electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment, external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and / or neural networks. According to embodiments, external electronic device 104 or server 108 may be included in a second network 199. Electronic device 101 may be applied to intelligent services based on 5G communication technology or IoT-related technologies (e.g., smart homes, smart cities, smart cars, or healthcare).

[0046] Figure 2 This is a block diagram illustrating an electronic device according to an embodiment. Figure 3 This is a block diagram illustrating an electronic device according to an embodiment.

[0047] According to embodiments, electronic device 101 may be a device that receives power 291 from power source 290 (e.g., a laptop computer, tablet computer, portable communication device (e.g., smartphone), computer device, portable multimedia device, portable medical device, camera, wearable device, or home appliance). Power source 290 may be a device that provides power 291 to electronic device 101 (e.g., wired or wireless power) (e.g., a wired charging device or a wireless charging device). Power source 290 may be a device that sends external power to electronic device 101 (e.g., an adapter). The type of power source 290 is not limited to a device that provides power. The type of electronic device 101 is not limited to a device that receives power.

[0048] Reference Figure 2 and Figure 3 According to an 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. This can be seen by referring to... Figure 2 and Figure 3 To understand the connection structure of the charger circuit 220, battery 230, and converter 240 included in electronic device 101. (Refer to...) Figure 2 The output of charger circuit 220 can be electrically connected to the input of converter 240 and battery 230. (See reference...) Figure 3 The output of charger circuit 220 can be electrically connected to the input of battery 230, and the output of battery 230 can be electrically connected to the input of converter 240. The connection structure of charger circuit 220, battery 230, and converter 240 is not limited to... Figure 2 and Figure 3 Examples of implementations.

[0049] The operation of the electronic device 101 according to the embodiment can be controlled by the controller 260 of the electronic device 101 (e.g., Figure 1 The processor 120 controls the electronic device 101. When it is said that the electronic device 101 performs a particular operation, this may mean that the electronic device 101 or the components included in the electronic device 101 are controlled by the controller 260 of the electronic device 101. The electronic device 101 may include one or more controllers 260. In the following, for ease of description, even when the controller 260 is implemented as multiple controllers, it will be referred to as "operation of the electronic device 101" or "operation of the controller 260".

[0050] According to an embodiment, electronic device 101 (e.g., controller 260) can receive power (e.g., wired or wireless power) supplied from power source 290 via power circuit 210. For example, power circuit 210 may include wired power circuitry (e.g., circuitry including a wired connector) and / or wireless power circuitry (e.g., circuitry including a receiving coil and a rectifier).

[0051] According to an embodiment, electronic device 101 (e.g., controller 260) can provide power to charger circuit 220 via power circuit 210. Electronic device 101 (e.g., controller 260) can also provide power to battery 230 via charger circuit 220. Charger circuit 220 can be a circuit that provides power to battery 230 based on power supplied from external power source 290. Charger circuit 220 can receive power from power circuit 210. Charger circuit 220 can provide power to battery 230 based on power supplied from power circuit 210. Charger circuit 220 can convert input voltage to output voltage. The output voltage of charger circuit 220 can be the input voltage (e.g., charging voltage) of battery 230. Battery 230 can be charged based on the output voltage (e.g., charging voltage) of charger circuit 220.

[0052] According to an embodiment, electronic device 101 (e.g., controller 260) can supply power to load 250 via converter 240. Load 250 may be a power-consuming component of electronic device 101. Converter 240 can supply power to load 250 based on the power supplied to converter 240. (Refer to...) Figure 2 For example, converter 240 can receive power from battery 230. (See reference...) Figure 2 For example, converter 240 can receive power from charger circuit 220. (See reference...) Figure 3 Converter 240 can receive power from battery 230. Converter 240 converts its input voltage to a voltage suitable for the load 250 electrically connected to it. Although... Figure 2 and Figure 3 A single converter 240 and a single load 250 are shown, but this is for ease of description, and the number of converters 240 and loads 250 is not limited. For example, refer to... Figure 2 When two converters 240 and two loads 250 are present, the input of the first converter can be connected to the output of the charger circuit 220 and the battery 230, the first load can be connected to the output of the first converter, the input of the second converter can be connected to the output of the charger circuit 220 and the battery 230, and the second load can be connected to the output of the second converter. In this case, multiple converters 240 can be electrically connected to the output of the charger circuit 220 and the battery 230. (Refer to...) Figure 3 For example, when there are two converters 240 and two loads 250, the input of the first converter can be connected to the battery 230, the first load can be connected to the output of the first converter, the input of the second converter can be connected to the battery 230, and the second load can be connected to the output of the second converter. In this case, multiple converters 240 can be electrically connected to the battery 230.

[0053] Figure 4 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment. Figure 5 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment. Figure 6 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment. Figure 7 This is a diagram illustrating the operation of a converter in an electronic device according to an embodiment.

[0054] Reference Figure 4 (a) According to an embodiment, converter 240 may be implemented as a buck-boost converter. Converter 240 may include a plurality of switches 441, 442, 443, and 444 (e.g., Q1, Q2, Q3, and Q4) and at least one inductor 445. The plurality of switches 441, 442, 443, and 444 (e.g., Q1, Q2, Q3, and Q4) may include a first switch 441 (e.g., Q1), a second switch 442 (e.g., Q2), a third switch 443 (e.g., Q3), and a fourth switch 444 (e.g., Q4). Electronic device 101 (e.g., controller 260) may control converter 240 to perform buck conversion, boost conversion, or buck-boost conversion by controlling the plurality of switches 441, 442, 443, and 444 (e.g., Q1, Q2, Q3, and Q4) of converter 240. Electronic device 101 (e.g., controller 260) can control multiple switches 441, 442, 443, and 444 (e.g., Q1, Q2, Q3, and Q4) of converter 240 based on the converter 240's operating mode (e.g., buck mode, boost mode, or buck-boost mode). For example, for buck conversion (e.g., buck mode or buck operation), electronic device 101 (e.g., controller 260) can perform pulse width modulation (PWM) switching (e.g., alternately controlling them) on Q1 and Q2, controlling Q4 to be on and Q3 to be off. For example, for boost conversion (e.g., boost mode or boost operation), electronic device 101 (e.g., controller 260) can perform PWM switching on Q3 and Q4, controlling Q1 to be on and Q2 to be off. For example, for buck-boost conversion (e.g., buck-boost mode or buck-boost operation), electronic device 101 (e.g., controller 260) may perform PWM switching on Q1 and Q2, and on Q3 and Q4, switching Q1 and Q3 in the same manner, and switching Q2 and Q4 in the same manner. For example, for buck-boost conversion (e.g., buck-boost mode or buck-boost operation), electronic device 101 (e.g., controller 260) may perform PWM switching (e.g., alternating control) on a first pair of Q1 and Q3 and a second pair of Q2 and Q4.

[0055] For example, you can refer to Figure 4 To understand buck-boost conversion (e.g., buck-boost mode or buck-boost operation), refer to [reference needed]. Figure 4 (a) For buck-boost conversion (e.g., buck-boost mode or buck-boost operation), electronic device 101 (e.g., controller 260) may alternately control the first switch 441 and the second switch 442, alternately control the third switch 443 and the fourth switch 444, control the first switch 441 and the third switch 443 in the same way, and control the second switch 442 and the fourth switch 444 in the same way. Figure 4 Figures (b) and (c) are graphs showing the current (e.g., IL) and voltage (VL) of at least one inductor 445 included in converter 240 when the operating mode of converter 240 is buck-boost mode. (Refer to...) Figure 4 (c) When the converter 240 operates in buck-boost mode, with the first switch 441 and the third switch 443 controlled to be on, the voltage (e.g., VL) of at least one inductor 445 can be the voltage (e.g., Vin) of the battery 230. (Refer to...) Figure 4 (c) When the converter 240 operates in buck-boost mode, with the second switch 442 and the fourth switch 444 controlled to be on, the voltage (e.g., VL) of at least one inductor 445 can be the reverse voltage (e.g., -Vo) of the load 250 (e.g., Vo). (Refer to...) Figure 4 (b) When the converter 240 operates in buck-boost mode, with the first switch 441 and the third switch 443 controlled to be on, the current of the first switch 441 (e.g., IQ1), the current of at least one inductor 445 (e.g., IL), and the current of the third switch 443 (e.g., IQ3) may increase. See reference... Figure 4 (b) When the converter 240 operates in buck-boost mode, with the second switch 442 and the fourth switch 444 controlled to be on, the current of the second switch 442 (e.g., IQ2), the current of at least one inductor 445 (e.g., IL), and the current of the fourth switch 444 (e.g., IQ4) can be reduced. See reference... Figure 4 (b) When the operating mode of the converter 240 is buck-boost mode, as the first pair (e.g., 441 and 443) and the second pair (e.g., 442 and 444) of the plurality of switches 441, 442, 443 and 444 of the converter 240 are alternately controlled, the current (e.g., IL) of at least one inductor 445 may repeatedly increase and decrease around a current (e.g., 2 [A]) greater than a target current (e.g., 1 [A]).

[0056] For example, you can refer to Figure 5To understand buck conversion (e.g., buck mode or buck operation). Refer to [reference needed]. Figure 5 (a) For buck conversion (e.g., buck mode or buck operation), electronic device 101 (e.g., controller 260) may alternately control the first switch 441 and the second switch 442, control the third switch 443 to open, and control the fourth switch 444 to close. Figure 5 Figures (b) and (c) are graphs showing the current (e.g., IL) and voltage (VL) of at least one inductor 445 included in converter 240 when the operating mode of converter 240 is buck mode. (Refer to...) Figure 5 (c) When the converter 240 operates in buck mode, with the first switch 441 and the fourth switch 444 controlled to be on, the voltage (e.g., VL) of at least one inductor 445 can be the difference (e.g., Vin-Vo) between the voltage of the battery 230 (e.g., Vin) and the voltage of the load 250 (e.g., Vo). (Refer to...) Figure 5 (c) When the converter 240 is operating in buck mode, with the second switch 442 and the fourth switch 444 controlled to be on, the voltage (e.g., VL) of at least one inductor 445 can be the reverse voltage (e.g., -Vo) of the load 250 (e.g., Vo). (Refer to...) Figure 5 (b) When the converter 240 operates in buck mode, with the first switch 441 and the fourth switch 444 controlled to be on, the current of the first switch 441 (e.g., IQ1), the current of at least one inductor 445 (e.g., IL), and the current of the fourth switch 444 (e.g., IQ4) may increase. See reference... Figure 5 (b) When the converter 240 operates in buck mode, with the second switch 442 and the fourth switch 444 controlled to be on, the current of the second switch 442 (e.g., IQ2), the current of at least one inductor 445 (e.g., IL), and the current of the fourth switch 444 (e.g., IQ4) can be reduced. See reference... Figure 5 (b) When the converter 240 operates in buck mode, as the first switch 441 and the second switch 442 of the plurality of switches 441, 442, 443 and 444 of the converter 240 are alternately controlled, the third switch 443 is controlled to be open and the fourth switch 444 is controlled to be on, the current (e.g., IL) of at least one inductor 445 can repeatedly increase and decrease around a target current (e.g., 1 [A]). According to an embodiment, refer to Figure 4 and Figure 5The duty cycle of converter 240 in buck-boost mode can be different from that in buck mode. Conversely, the duty cycle of converter 240 in buck-boost mode can also be the same.

[0057] For example, you can refer to Figure 6 To understand boost conversion (e.g., boost mode or boost operation). See [reference needed]. Figure 6 (a) For boost conversion (e.g., boost mode or boost operation), electronic device 101 (e.g., controller 260) may alternately control the third switch 443 and the fourth switch 444, control the second switch 442 to open, and control the first switch 441 to close. Figure 6 Figures (b) and (c) are graphs showing the current (e.g., IL) and voltage (VL) of at least one inductor 445 included in converter 240 when the operating mode of converter 240 is boost mode. (Refer to...) Figure 6 (c) When the converter 240 operates in boost mode, with the first switch 441 and the third switch 443 controlled to be on, the voltage (e.g., VL) of at least one inductor 445 can be the voltage (e.g., Vin) of the battery 230. (Refer to...) Figure 5 (c) When the converter 240 operates in boost mode, with the first switch 441 and the fourth switch 444 controlled to be on, the voltage (e.g., VL) of at least one inductor 445 can be the difference (e.g., Vin-Vo) between the voltage of the battery 230 (e.g., Vin) and the voltage of the load 250 (e.g., Vo). (Refer to...) Figure 6 (b) When the converter 240 operates in boost mode, with the first switch 441 and the third switch 443 controlled to be on, the current of the first switch 441 (e.g., IQ1), the current of at least one inductor 445 (e.g., IL), and the current of the third switch 443 (e.g., IQ3) may increase. See reference. Figure 6 (b) When the converter 240 operates in boost mode, with the first switch 441 and the fourth switch 444 controlled to be on, the current of the first switch 441 (e.g., IQ1), the current of at least one inductor 445 (e.g., IL), and the current of the fourth switch 444 (e.g., IQ4) can be reduced. See reference... Figure 6(b) When the converter 240 is in boost mode, as the third switch 443 and the fourth switch 444 of the plurality of switches 441, 442, 443 and 444 of the converter 240 are alternately controlled, the second switch 442 is controlled to be off and the first switch 441 is controlled to be on, the current (e.g., IL) of at least one inductor 445 can repeatedly increase and decrease around a target current (e.g., 1 [A]). According to an embodiment, refer to Figure 5 and Figure 6 The duty cycle of converter 240 in buck-boost mode and the duty cycle in boost mode can be different. Alternatively, the duty cycle of converter 240 in buck-boost mode and the duty cycle in boost mode can be the same.

[0058] Figure 7 This is a diagram illustrating the operation of an electronic device according to a comparative example. Figure 8 This is a circuit diagram illustrating a circuit included in an electronic device according to an embodiment.

[0059] Figure 8 This is a circuit diagram illustrating circuitry included in an electronic device 101 comprising a first signal generation circuit 810 and a second signal generation circuit 820 according to an embodiment. Figure 7 This is a diagram illustrating the operation of an electronic device 101 according to a comparative example that does not have a first signal generation circuit 810 and a second signal generation circuit 820.

[0060] Reference Figure 7 According to the comparative example, electronic device 101 may not include the first signal generation circuit 810 and the second signal generation circuit 820. (Refer to...) Figure 7 and Figure 8 According to the comparative example, an electronic device 101 that does not have a first signal generation circuit 810 and a second signal generation circuit 820 may include Figure 8 The first comparison circuit 851, the PWM control circuit 830, the drive logic circuit 840, the second comparison circuit 852, the third comparison circuit 853, and the NOT gate 854 are included. According to the comparison example, in an electronic device 101 that does not have the first signal generation circuit 810 and the second signal generation circuit 820, Figure 8 The input signals (e.g., Q3_ON and Q1_EXT) of the driver logic circuit 840 disclosed herein can be changed to other input signals (e.g., BB_ENA and BOOST_ENA).

[0061] Reference Figure 7According to the comparative example, based on the fact that the input voltage (e.g., Vin) of converter 240 is greater than the sum of the output voltage (e.g., Vo) and a specified voltage (e.g., VH) of converter 240 (e.g., Vo+VH), electronic device 101 can output a Buck_ENA signal using a second comparator circuit 852, a third comparator circuit 853, and a NOT gate 854. According to the comparative example, since the input signals of the drive logic circuit 840 are BB_ENA and BOOST_ENA, the operating mode of converter 240 can be a buck mode based on the output of the Buck_ENA signal. In buck mode, electronic device 101 (e.g., controller 260) can alternately control a first switch 441 and a second switch 442, control a third switch 443 to open, and control a fourth switch 444 to close.

[0062] Reference Figure 7 According to the comparison example, based on the fact that the input voltage (e.g., Vin) of converter 240 is less than the sum of the output voltage (e.g., Vo) and the specified voltage (e.g., VH) of converter 240 (e.g., Vo+VH) and greater than the difference between the output voltage (e.g., Vo) and the specified voltage (e.g., VH) of converter 240 (e.g., Vo-VH), electronic device 101 can use the second comparator circuit 852, the third comparator circuit 853, and the NOT gate 854 to output the BB_ENA signal. According to the comparison example, since the input signals of the drive logic circuit 840 are BB_ENA and BOOST_ENA, the operating mode of converter 240 can be a buck-boost mode based on the output of the BB_ENA signal. In buck-boost mode, electronic device 101 (e.g., controller 260) can alternately control the first switch 441 and the second switch 442, alternately control the third switch 443 and the fourth switch 444, control the first switch 441 and the third switch 443 in the same way, and control the second switch 442 and the fourth switch 444 in the same way.

[0063] Reference Figure 7According to the comparative example, based on the fact that the input voltage (e.g., Vin) of converter 240 is less than the difference (e.g., Vo-VH) between the output voltage (e.g., Vo) of converter 240 and a specified voltage (e.g., VH), electronic device 101 can use the second comparator circuit 852, the third comparator circuit 853, and the NOT gate 854 to output the BB_ENA and BOOST_ENA signals. According to the comparative example, since the input signals of the drive logic circuit 840 are BB_ENA and BOOST_ENA, the operating mode of converter 240 can be a boost mode based on the output of the BB_ENA and BOOST_ENA signals. In boost mode, electronic device 101 (e.g., controller 260) can control the first switch 441 to turn on, control the second switch 442 to turn off, and alternately control the third switch 443 and the fourth switch 444.

[0064] Reference Figure 7 According to the comparative example, when switching from buck mode to buck-boost mode, the duty cycles of the third switch 443 and the fourth switch 444 may change abruptly, and when switching from buck-boost mode to boost mode, the duty cycles of the first switch 441 and the second switch 442 may change abruptly. Based on these abrupt changes in the duty cycles of the switches (e.g., 441, 442, 443, and 444), ripple may appear in the output voltage (e.g., Vo) of the converter 240.

[0065] Reference Figure 8According to an embodiment, electronic device 101 may include a first comparison circuit 851. Electronic device 101 (e.g., controller 260) may use the first comparison circuit 851 to output a control voltage (e.g., Vc). The first comparison circuit 851 may output the control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of converter 240 and a target voltage (e.g., Vt) of the output voltage of converter 240. The output voltage (e.g., Vo) of converter 240 may be the voltage of the power supplied from converter 240 to load 250. The target voltage (e.g., Vt) of the output voltage of converter 240 may be determined based on load 250. For example, in order to provide a voltage of 3 [V] to load 250, the target voltage (e.g., Vt) of the output voltage of converter 240 may be determined to be 3 [V]. Electronic device 101 (e.g., controller 260) may use the first comparison circuit 851 to output the control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of converter 240 and the target voltage (e.g., Vt). Electronic device 101 (e.g., controller 260) can output a control voltage (e.g., Vc) based on the difference between the output voltage (e.g., Vo) of converter 240 and a target voltage (e.g., Vt), and the integral of said difference, using a first comparator circuit 851. The first comparator circuit 851 can output the control voltage (e.g., Vc) by adding the integral of the difference between the output voltage (e.g., ELVDD) of converter 240 and the target voltage (e.g., Vt).

[0066] Reference Figure 8 According to an embodiment, electronic device 101 may include a PWM control circuit 830. Electronic device 101 (e.g., controller 260) may use the PWM control circuit 830 to output a basic signal (e.g., a basic PWM signal Q0). The PWM control circuit 830 may output the basic signal (e.g., Q0) based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). The PWM control circuit 830 may include a comparator, an oscillator OSC, and a controller. The PWM control circuit may output the basic signal (e.g., the basic PWM signal Q0) when the controller of the PWM control circuit 830 outputs the basic signal in response to a signal from the oscillator OSC, and when reset based on a signal output using a comparator based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). (Refer to...) Figure 8 The drive logic circuit 840 and the first signal generation circuit 810 can receive a basic signal (e.g., Q0) output from the PWM control circuit 830, and the second signal generation circuit 820 can receive the inverted version of the basic signal (e.g., Q0).

[0067] According to an embodiment, electronic device 101 may include a first signal generation circuit 810. Electronic device 101 (e.g., controller 260) may use the first signal generation circuit 810 to output an on signal (e.g., Q3_ON). The first signal generation circuit 810 may output the on signal (e.g., Q3_ON) based on a basic signal (e.g., Q0) of PWM control circuit 830. The first signal generation circuit 810 may include a first limiter 812 and a first single-trigger oscillator 811. The first limiter 812 may output a first output signal based on a first value (e.g., Vo-Vin+VH1) obtained by subtracting the input voltage (e.g., Vin) of converter 240 from the sum of the output voltage (e.g., Vo) and a first reference voltage (e.g., VH1) of converter 240. The first limiter 812 may not output a signal (e.g., may output 0) if the first value (e.g., Vo-Vin+VH1) is 0 or less. The first limiter 812 may output a signal proportional to the first value (e.g., Vo-Vin+VH1) based on a first value (e.g., Vo-Vin+VH1) exceeding 0 and less than or equal to a first reference value. The first limiter 812 may also output a signal proportional to the first reference value (e.g., a signal corresponding to the first reference value) based on a first value (e.g., Vo-Vin+VH1) exceeding the first reference value. The first single-trigger oscillator 811 may output an on signal (e.g., Q3_ON) based on the first output signal of the first limiter 812 and the basic signal (e.g., Q0) of the PWM control circuit 830. The electronic device 101 (e.g., controller 260) may output an on signal (e.g., Q3_ON) using the first signal generation circuit 810 based on the input voltage of the converter 240 being less than the sum of the output voltage and the first reference voltage. The duty cycle of the turn-on signal (e.g., Q3_ON) can be determined based on the value obtained by subtracting the input voltage (e.g., Vini) from the sum of the output voltage (e.g., Vo) and the first reference voltage (e.g., VH1). The duty cycle of the turn-on signal (e.g., Q3_ON) output from the first signal generation circuit 810 can increase as the first value (e.g., Vo-Vin+VH1) increases with a decrease in the input voltage (e.g., Vin) of the converter 240.

[0068] According to an embodiment, electronic device 101 may include a first signal generation circuit 810 and may not include a second signal generation circuit 820. According to an embodiment, electronic device 101 may include a first signal generation circuit 810 and a second signal generation circuit 820. Electronic device 101 (e.g., controller 260) may use the second signal generation circuit 820 to output an extended signal (e.g., Q1_EXT). The second signal generation circuit 820 may output an extended signal (e.g., Q1_EXT) based on the inversion (e.g., Q0-) of the basic signal (e.g., Q0) of the PWM control circuit 830. The second signal generation circuit 820 may include a second limiter 822 and a second single-trigger oscillator 821. The second limiter 822 may output a second output signal based on a second value (e.g., Vo-Vin-VH2) obtained by subtracting the input voltage (e.g., Vin) of converter 240 from the difference between the output voltage (e.g., Vo) and the second reference voltage (e.g., VH2) of converter 240. The second reference voltage (e.g., VH2) may be the same as or different from the first reference voltage (e.g., VH1). The second limiter 822 may not output a signal (e.g., output 0) based on the second value (e.g., V0-Vin-VH2) being 0 or less. The second limiter 822 may output a signal proportional to the second value (e.g., V0-Vin-VH2) based on the second value (e.g., V0-Vin-VH2) being greater than 0 and less than or equal to the second reference value. The second reference value may be the same as or different from the first reference value. The second limiter 822 may output a signal proportional to the second reference value (e.g., a signal corresponding to the second reference value) based on the second value (e.g., V0-Vin-VH2) exceeding the second reference value. The second single-trigger oscillator 821 may output an extended signal (e.g., Q1_EXT) based on the second output signal of the second limiter 822 and the inversion (e.g., Q0-) of the basic signal (e.g., Q0) of the PWM control circuit 830. Electronic device 101 (e.g., controller 260) may output an extended signal (e.g., Q1_EXT) using second signal generation circuit 820 based on the fact that the input voltage of converter 240 is less than a value obtained by subtracting a second reference voltage from the output voltage of converter 240. The duty cycle of the extended signal (e.g., Q1_EXT) may be determined based on a value obtained by subtracting the input voltage from the output voltage: a value obtained by subtracting the second reference voltage from the output voltage. The duty cycle of the extended signal (e.g., Q1_EXT) output from second signal generation circuit 820 may increase as the second value (e.g., Vo-Vin-VH2) increases as the input voltage (e.g., Vin) of converter 240 decreases.

[0069] According to an embodiment, the basic signal (e.g., Q0) of the PWM control circuit 830 may be provided to the drive logic circuit 840. The on signal (e.g., Q3_ON) of the first signal generation circuit 810 may be provided to the drive logic circuit 840. The extended signal (e.g., Q1_EXT) of the second signal generation circuit 820 may be provided to the drive logic circuit 840. The drive logic circuit 840 may include an AND gate 843 that outputs a drive signal (e.g., G3) corresponding to a third switch 443 (e.g., Q3) based on the basic signal (e.g., Q0) and the on signal (e.g., Q3_ON). The drive logic circuit 840 may include a NOT gate 844 that outputs a drive signal (e.g., G4) corresponding to a fourth switch 444 (e.g., Q4) by inverting the signal output from the AND gate 843. The drive logic circuit 840 may include an OR gate 841 that outputs a drive signal (e.g., G1) corresponding to a first switch 441 (e.g., Q1) based on the basic signal (e.g., Q0) and the extended signal (e.g., Q1_EXT). The drive logic circuit 840 may include a NOT gate 842 that outputs a drive signal (e.g., G2) corresponding to a second switch 442 (e.g., Q2) by inverting the signal output from the OR gate 841. Figure 8 The embodiments described are merely examples, and the output is consistent with... Figure 8 Combinations of multiple logic circuits with the same drive signal for the drive logic circuit 840 are possible. Electronic device 101 (e.g., controller 260) can control multiple switches (e.g., 441, 442, 443, and 444) of converter 240 based on the drive signal output from the drive logic circuit 840.

[0070] According to an embodiment, based on an on signal (e.g., Q3_ON) and a basic signal (e.g., Q0) of the PWM control circuit 830 occurring within a time proportional to the difference between the output voltage and the input voltage of the converter 240, the duty cycle of the third switch 443 can gradually increase, and the duty cycle of the fourth switch 444 can gradually decrease. When the operating mode of the converter 240 switches from buck mode to buck-boost mode, based on the on signal (e.g., Q3_ON), ​​the duty cycle of the third switch 443 can gradually increase, and the duty cycle of the fourth switch 444 can gradually decrease. Based on the gradual increase of the duty cycle of the third switch 443 and the gradual decrease of the duty cycle of the fourth switch 444, the operating mode of the converter 240 can gradually switch from buck mode to buck-boost mode. Based on a first soft switching mode corresponding to the on signal (e.g., Q3_ON), ​​the operating mode of the converter 240 can gradually switch from buck mode to buck-boost mode. Based on a first soft-switching mode corresponding to an on signal (e.g., Q3_ON) that occurs between buck mode and buck-boost mode, the operating mode of converter 240 can be gradually switched from buck mode to buck-boost mode. Based on this first soft-switching mode, the ripple of the output voltage (e.g., Vo) of converter 240 that occurs when the operating mode of converter 240 abruptly switches from buck mode to buck-boost mode can be reduced.

[0071] According to an embodiment, based on the extended signal (e.g., Q1_EXT) and the inversion (e.g., Q0-) of the basic signal (e.g., Q0) of the PWM control circuit 830, the duty cycle of the first switch 441 can be gradually increased, and the duty cycle of the second switch 442 can be gradually decreased, within a time proportional to the difference between the output voltage and the input voltage of the converter 240. When the operating mode of the converter 240 switches from buck-boost mode to boost mode, based on the extended signal (e.g., Q1_EXT), the duty cycle of the first switch 441 can be gradually increased, and the duty cycle of the second switch 442 can be gradually decreased. Based on the gradual increase of the duty cycle of the first switch 441 and the gradual decrease of the duty cycle of the second switch 442, the operating mode of the converter 240 can gradually switch from buck-boost mode to boost mode. Based on the second soft switching mode corresponding to the extended signal (e.g., Q1_EXT), the operating mode of the converter 240 can gradually switch from buck-boost mode to boost mode. Based on a second soft-switching mode corresponding to the extended signal (e.g., Q1_EXT) that occurs between buck-boost mode and boost mode, the operating mode of converter 240 can be gradually switched from buck-boost mode to boost mode. Based on the second soft-switching mode, the ripple of the output voltage (e.g., Vo) of converter 240 that occurs when the operating mode of converter 240 abruptly switches from buck-boost mode to boost mode can be reduced.

[0072] Figure 9 This is a block diagram illustrating an electronic device according to an embodiment. Figure 10 This is a block diagram illustrating an electronic device according to an embodiment. Figure 11 This is a block diagram illustrating an electronic device according to an embodiment.

[0073] Reference Figure 9 It can be understood that the electronic device 101 includes embodiments of a first signal generation circuit 810 and a second signal generation circuit 820. Figure 9 In the converter 240, when the operating mode switches from buck mode to buck-boost mode, the drive logic circuit 840 can output a first drive signal based on the basic signal of the PWM control circuit 830 (e.g., Q0) and the turn-on signal of the first signal generation circuit 810 (e.g., Q3_ON). When the operating mode of the converter 240 switches from buck-boost mode to boost mode, the drive logic circuit 840 can output a second drive signal based on the basic signal of the PWM control circuit 830 (e.g., Q0), the turn-on signal of the first signal generation circuit 810 (e.g., Q3_ON), ​​and the extended signal of the second signal generation circuit 820 (e.g., Q1_EXT).

[0074] Reference Figure 10 It can be understood that the electronic device 101 includes an embodiment of a first signal generation circuit 810. Figure 10 In the converter 240, when the operating mode switches from buck mode to buck-boost mode, the drive logic circuit 840 can output a first drive signal based on the basic signal of the PWM control circuit 830 (e.g., Q0) and the turn-on signal of the first signal generation circuit 810 (e.g., Q3_ON). When the operating mode of the converter 240 switches from buck-boost mode to boost mode, the drive logic circuit 840 can output a second drive signal based on the basic signal of the PWM control circuit 830 (e.g., Q0), the turn-on signal of the first signal generation circuit 810 (e.g., Q3_ON), ​​and the BOOST_ENA signal.

[0075] Reference Figure 11 It is understood that the electronic device 101 includes an embodiment of a second signal generation circuit 820. Figure 11 In the converter 240, when the operating mode switches from buck mode to buck-boost mode, the drive logic circuit 840 can output a first drive signal based on the basic signal (e.g., Q0) and BB_ENA signal of the PWM control circuit 830. When the operating mode switches from buck-boost mode to boost mode, the drive logic circuit 840 can output a second drive signal based on the basic signal (e.g., Q0) of the PWM control circuit 830, the BB_ENA signal, and the extended signal (e.g., Q1_EXT) of the second signal generation circuit 820.

[0076] Figure 12 This is a diagram illustrating the operation of an electronic device according to an embodiment. Figure 13 This is a diagram illustrating the operation of an electronic device according to an embodiment. Figure 14 This is a diagram illustrating the operation of an electronic device according to an embodiment.

[0077] Figure 12 It is a graph showing the reduction of ripple in the current (e.g., IL) of at least one inductor 445 of converter 240 based on a first soft switching mode corresponding to an on signal (e.g., Q3_ON) and a second soft switching mode corresponding to an extended signal (e.g., Q1_EXT).

[0078] Figure 13 This illustrates the first soft-conversion mode corresponding to the on signal (e.g., Q3_ON), ​​while the operating mode of converter 240 changes from buck mode (e.g., ...). Figure 13 (a) Gradually switch to buck-boost mode (e.g., Figure 13 The curve of the process of (d)). During the switching... Figure 13 When (a), (b), (c) and (d) occur in sequence, the ripple of the output voltage (e.g., Vo) of converter 240 can be reduced.

[0079] Figure 14 This illustrates the second soft conversion mode corresponding to the extended signal (e.g., Q1_EXT), while the operating mode of converter 240 changes from buck-boost mode (e.g., ...). Figure 14 (a) Gradually switch to boost mode (e.g., Figure 14 The curve of the process of (d)). During the switching... Figure 14 When (a), (b), (c) and (d) occur in sequence, the ripple of the output voltage (e.g., Vo) of converter 240 can be reduced.

[0080] Figure 15 This is a flowchart illustrating a method for operating an electronic device according to an embodiment. Figure 16 This is a flowchart illustrating a method for operating an electronic device according to an embodiment. The embodiments described above can be referenced for further explanation. Figure 15 and Figure 16 .

[0081] Figure 15 An embodiment is shown that outputs a drive signal based on an on signal (e.g., Q3_ON).

[0082] Can be omitted Figure 15 At least some of the operations within. Modifiable. Figure 15 The order of operations within. (This can be found in...) Figure 15 Executed before, during, or after an operation in the middle, except Figure 15 Operations other than those in the code.

[0083] Reference Figure 15 In operation 1501, according to an embodiment, electronic device 101 (e.g., controller 260) may use a first comparator circuit 851 to output a control voltage (e.g., Vc). Electronic device 101 may use the first comparator circuit 851 to output a control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of converter 240 and a target voltage (e.g., Vt) of the output voltage. The output of the control voltage (e.g., Vc) can be understood based on the embodiments described above.

[0084] In operation 1503, according to an embodiment, electronic device 101 (e.g., controller 260) may output a basic signal (e.g., Q0) using PWM control circuit 830. Electronic device 101 may output the basic signal (e.g., Q0) based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). The output of the basic signal (e.g., Q0) can be understood based on the embodiments described above.

[0085] In operation 1505, according to an embodiment, electronic device 101 (e.g., controller 260) may output an on signal (e.g., Q3_ON) using the first signal generation circuit 810. Electronic device 101 may output the on signal (e.g., Q3_ON) based on a basic signal (e.g., Q0). The output of the on signal (e.g., Q3_ON) can be understood based on the embodiments described above.

[0086] In operation 1507, according to an embodiment, electronic device 101 (e.g., controller 260) may output a first drive signal using drive logic circuitry 840. Electronic device 101 may output the first drive signal based on a basic signal (e.g., Q0) and an on signal (e.g., Q3_ON). The output of the first drive signal can be understood based on the embodiments described above.

[0087] In operation 1509, according to an embodiment, electronic device 101 (e.g., controller 260) can control multiple switches (e.g., 441, 442, 443, and 444) of converter 240 based on a first drive signal. Based on the first drive signal, the duty cycle of at least some of the multiple switches (e.g., 443 and 444) of converter 240 can be gradually changed, wherein the first drive signal is based on an on signal (e.g., Q3_ON) output. The control of the multiple switches (e.g., 441, 442, 443, and 444) of converter 240 can be understood based on the embodiments described above.

[0088] Figure 16An embodiment is shown that outputs a drive signal based on an on signal (e.g., Q3_ON) and an extended signal (e.g., Q1_EXT).

[0089] Can be omitted Figure 16 At least some of the operations within. Modifiable. Figure 16 The order of operations within. (This can be found in...) Figure 16 Executed before, during, or after an operation in the middle, except Figure 16 Operations other than those in the code.

[0090] Reference Figure 16 In operation 1601, according to an embodiment, electronic device 101 (e.g., controller 260) may use a first comparator circuit 851 to output a control voltage (e.g., Vc). Electronic device 101 may use the first comparator circuit 851 to output a control voltage (e.g., Vc) based on the output voltage (e.g., Vo) of converter 240 and a target voltage (e.g., Vt) of the output voltage. The output of the control voltage (e.g., Vc) can be understood based on the embodiments described above.

[0091] In operation 1603, according to an embodiment, electronic device 101 (e.g., controller 260) may output a basic signal (e.g., Q0) using PWM control circuit 830. Electronic device 101 may output the basic signal (e.g., Q0) based on a control voltage (e.g., Vc) and a sawtooth wave (e.g., Vsaw). The output of the basic signal (e.g., Q0) can be understood based on the embodiments described above.

[0092] In operation 1605, according to an embodiment, electronic device 101 (e.g., controller 260) may output an on signal (e.g., Q3_ON) using first signal generation circuit 810. Electronic device 101 may output the on signal (e.g., Q3_ON) based on a basic signal (e.g., Q0). The output of the on signal (e.g., Q3_ON) can be understood based on the embodiments described above.

[0093] In operation 1607, according to an embodiment, electronic device 101 (e.g., controller 260) may use second signal generation circuit 820 to output an extended signal (e.g., Q1_EXT). Electronic device 101 may output the extended signal (e.g., Q1_EXT) based on the inversion (e.g., Q0-) of a basic signal (e.g., Q0). The output of the extended signal (e.g., Q1_EXT) can be understood based on the embodiments described above.

[0094] In operation 1609, according to an embodiment, electronic device 101 (e.g., controller 260) may output a second drive signal using drive logic circuitry 840. Electronic device 101 may output the second drive signal based on a basic signal (e.g., Q0), an on signal (e.g., Q3_ON), ​​and an extended signal (e.g., Q1_EXT). The output of the second drive signal can be understood based on the embodiments described above.

[0095] In operation 1611, according to an embodiment, electronic device 101 (e.g., controller 260) can control multiple switches (e.g., 441, 442, 443, and 444) of converter 240 based on a second drive signal. Based on the second drive signal output according to an on signal (e.g., Q3_ON) and an extended signal (e.g., Q1_EXT), the duty cycle of at least some of the multiple switches (e.g., 441, 442, 443, and 444) of converter 240 (e.g., 441 and 442) can be gradually changed. The control of the multiple switches (e.g., 441, 442, 443, and 444) of converter 240 can be understood based on the embodiments described above.

[0096] Those skilled in the art will understand that the embodiments described herein can be applied in combination with each other within the scope of their applicability. For example, those skilled in the art will understand that at least some operations of one embodiment described herein may be omitted and applied, or at least some operations of the embodiments may be applied in combination with each other.

[0097] The technical objectives to be achieved in this disclosure are not limited to those described above, and other technical objectives not mentioned will be clearly understood by those skilled in the art from the following description.

[0098] The effects that can be obtained in this disclosure are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

[0099] According to an embodiment, the 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 supplied from the battery 230; a first comparator circuit 851; a PWM control circuit 830; a first signal generation circuit 810; a drive logic circuit 840; and a controller 120 or 260. The controller 120 or 260 may be configured to use the first comparator circuit 851 to output a control voltage based on the output voltage of the converter 240 and a target voltage of the output voltage. The controller 120 or 260 may be configured to use the PWM control circuit 830 to output a basic signal based on the control voltage and a sawtooth wave. The controller 120 or 260 may be configured to use the first signal generation circuit 810 to output an on signal based on the basic signal. The controller 120 or 260 may be configured to use the drive logic circuit 840 to output a first drive signal based on the basic signal and the on signal. The controller 120 or 260 may be configured to control a plurality of switches 441, 442, 443 and 444 of the converter 240 based on the first drive signal.

[0100] According to an embodiment, the controller 120 or 260 may be configured to use a first signal generation circuit 810 to output the turn-on signal based on the fact that the input voltage of the converter 240 is less than the sum of the output voltage and the first reference voltage.

[0101] According to an embodiment, the duty cycle of the turn-on signal can be determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

[0102] According to an embodiment, the first signal generation circuit 810 may include a first limiter 812 and a first single-trigger oscillator 811. The first limiter 812 may be configured to output a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. The first single-trigger oscillator 811 may be configured to output the turn-on signal based on the first output signal and the basic signal. The first output signal may be proportional to the first value if the first value is greater than 0 and less than or equal to the first reference value. The first output signal may be proportional to the first reference value if the first value exceeds the first reference value.

[0103] According to an embodiment, the electronic device 101 may further include a second signal generation circuit 820. The controller 120 or 260 may be configured to use the second signal generation circuit 820 to output an extended signal based on the inverted value of the basic signal. The controller 120 or 260 may be configured to use a drive logic circuit 840 to output a second drive signal based on the basic signal, the on signal, and the extended signal. The controller 120 or 260 may be configured to control the plurality of switches 441, 442, 443, and 444 of the converter 240 based on the second drive signal.

[0104] According to an embodiment, the controller 120 or 260 may be configured to output the extended signal using the second signal generation circuit 820, based on the fact that the input voltage of the converter 240 is less than a value obtained by subtracting a second reference voltage from the output voltage.

[0105] According to an embodiment, the duty cycle of the extended signal can be determined based on a value obtained by subtracting the input voltage from the output voltage, which is obtained by subtracting the second reference voltage from the output voltage.

[0106] According to an embodiment, the second signal generation circuit 820 may include a second limiter 822 and a second single-trigger oscillator 821. The second limiter 822 may be configured to output a second output signal based on a second value obtained by subtracting the input voltage from the input voltage, and a value obtained by subtracting the second reference voltage from the output voltage. The second single-trigger oscillator 821 may be configured to output an extended signal based on the inversion of the second output signal and the basic signal. The second output signal may be proportional to the second value based on the second value being greater than 0 and less than or equal to the second reference value. The second output signal may be proportional to the second reference value based on the second value being greater than the second reference value.

[0107] According to an embodiment, the converter 240 may include a first switch 441, a second switch 442, a third switch 443, a fourth switch 444, and an inductor. A first terminal of the first switch 441 is electrically connected to the battery 230. A first terminal of the second switch 442 is electrically connected to a second terminal of the first switch 441. A second terminal of the second switch 442 is electrically connected to ground. A first terminal of the third switch 443 is electrically connected to a load 250. A first terminal of the fourth switch 444 is electrically connected to a second terminal of the third switch 443. A second terminal of the fourth switch 444 is electrically connected to ground. A first terminal of the inductor is electrically connected to a second terminal of the first switch 441. A second terminal of the inductor is electrically connected to a second terminal of the third switch 443.

[0108] According to an embodiment, the drive logic circuit 840 may include an AND gate configured to output a drive signal corresponding to the third switch 443 based on the basic signal and the turn-on signal.

[0109] According to an embodiment, a method for operating an electronic device 101 may include: outputting a control voltage based on the output voltage of a converter 240 of the electronic device 101 and a target voltage of the output voltage. The method may include outputting a basic signal based on the control voltage and a sawtooth wave. The method may include outputting an on signal based on the basic signal. The method may include outputting a first drive signal based on the basic signal and the on signal. The method may include controlling a plurality of switches 441, 442, 443, and 444 of the converter 240 based on the first drive signal.

[0110] According to an embodiment, outputting the turn-on signal may include: outputting the turn-on signal based on the fact that the input voltage of the converter 240 is less than the sum of the output voltage and the first reference voltage.

[0111] According to an embodiment, the duty cycle of the turn-on signal can be determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

[0112] According to an embodiment, outputting the turn-on signal may include: outputting a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. Outputting the turn-on signal may include outputting the turn-on signal based on the first output signal and the basic signal. The first output signal may be proportional to the first value if the first value is greater than 0 and less than or equal to the first reference value. The first output signal may be proportional to the first reference value if the first value exceeds the first reference value.

[0113] According to an embodiment, the method may include: outputting an inverted extended signal based on the basic signal. The method may also include: outputting a second drive signal based on the basic signal, the on signal, and the extended signal. The method may further include controlling the plurality of switches 441, 442, 443, and 444 of the converter 240 based on the second drive signal.

[0114] According to an embodiment, outputting the extended signal may include: outputting the extended signal based on the fact that the input voltage of the converter 240 is less than a value obtained by subtracting a second reference voltage from the output voltage.

[0115] According to an embodiment, the duty cycle of the extended signal can be determined based on a value obtained by subtracting the input voltage from the output voltage, which is obtained by subtracting the second reference voltage from the output voltage.

[0116] According to an embodiment, outputting the extended signal may include: outputting the second output signal based on a second value obtained by subtracting the input voltage from the value; and outputting the extended signal based on a value obtained by subtracting the second reference voltage from the output voltage. Outputting the extended signal may also include outputting the extended signal based on the inversion of the second output signal and the basic signal. The second output signal may be proportional to the second value if the second value is greater than 0 and less than or equal to the second reference value. The second output signal may be proportional to the second reference value if the second value exceeds the second reference value.

[0117] According to an embodiment, the converter 240 may include a first switch 441, a second switch 442, a third switch 443, a fourth switch 444, and an inductor. A first terminal of the first switch 441 is electrically connected to the battery 230. A first terminal of the second switch 442 is electrically connected to a second terminal of the first switch 441. A second terminal of the second switch 442 is electrically connected to ground. A first terminal of the third switch 443 is electrically connected to the load 250. A first terminal of the fourth switch 444 is electrically connected to a second terminal of the third switch 443. A second terminal of the fourth switch 444 is electrically connected to ground. A first terminal of the inductor is electrically connected to a second terminal of the first switch 441. A second terminal of the inductor is electrically connected to a second terminal of the third switch 443.

[0118] According to an embodiment, the drive logic circuit 840 may include an AND gate configured to output a drive signal corresponding to the third switch 443 based on the basic signal and the turn-on signal.

[0119] According to an embodiment, in a computer-readable recording medium storing instructions configured to cause a controller 120 or 260 of electronic device 101 to perform at least one operation, the at least one operation may include outputting a control voltage based on the output voltage of converter 240 of electronic device 101 and a target voltage of the output voltage. The at least one operation may include outputting a basic signal based on the control voltage and a sawtooth wave. The at least one operation may include outputting an on signal based on the basic signal. The at least one operation may include outputting a first drive signal based on the basic signal and the on signal. The at least one operation may include controlling a plurality of switches 441, 442, 443, and 444 of converter 240 based on the first drive signal.

[0120] According to an embodiment, outputting the turn-on signal may include outputting the turn-on signal based on the fact that the input voltage of the converter 240 is less than the sum of the output voltage and the first reference voltage.

[0121] According to an embodiment, the duty cycle of the turn-on signal can be determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

[0122] According to an embodiment, outputting the turn-on signal may include: outputting a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. Outputting the turn-on signal may also include: outputting the turn-on signal based on the first output signal and the basic signal. The first output signal may be proportional to the first value if the first value is greater than 0 and less than or equal to the first reference value. The first output signal may be proportional to the first reference value if the first value exceeds the first reference value.

[0123] According to an embodiment, the at least one operation may include: outputting an inverted extended signal based on the basic signal. The at least one operation may include: outputting a second drive signal based on the basic signal, the on signal, and the extended signal. The at least one operation may include controlling the plurality of switches 441, 442, 443, and 444 of the converter 240 based on the second drive signal.

[0124] According to an embodiment, outputting the extended signal may include: outputting the extended signal based on the fact that the input voltage of the converter 240 is less than a value obtained by subtracting a second reference voltage from the output voltage.

[0125] According to an embodiment, the duty cycle of the extended signal can be determined based on a value obtained by subtracting the input voltage from the output voltage, which is obtained by subtracting the second reference voltage from the output voltage.

[0126] According to an embodiment, outputting the extended signal may include: outputting a second output signal based on a second value obtained by subtracting the input voltage from the output voltage; and a value obtained by subtracting the second reference voltage from the output voltage. Outputting the extended signal may also include: outputting the extended signal based on the inversion of the second output signal and the basic signal. The second output signal may be proportional to the second value if the second value is greater than 0 and less than or equal to the second reference value. The second output signal may be proportional to the second reference value if the second value exceeds the second reference value.

[0127] According to an embodiment, the converter 240 may include a first switch 441, a second switch 442, a third switch 443, a fourth switch 444, and an inductor. A first terminal of the first switch 441 is electrically connected to the battery 230. A first terminal of the second switch 442 is electrically connected to a second terminal of the first switch 441. A second terminal of the second switch 442 is electrically connected to ground. A first terminal of the third switch 443 is electrically connected to the load 250. A first terminal of the fourth switch 444 is electrically connected to a second terminal of the third switch 443. A second terminal of the fourth switch 444 is electrically connected to ground. A first terminal of the inductor is electrically connected to a second terminal of the first switch 441. A second terminal of the inductor is electrically connected to a second terminal of the third switch 443.

[0128] According to an embodiment, the drive logic circuit 840 may include an AND gate configured to output a drive signal corresponding to the third switch 443 based on the basic signal and the turn-on signal.

[0129] The electronic device according to various embodiments can be one of a variety of types of electronic devices. 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. According to embodiments of this disclosure, the electronic device is not limited to those described above.

[0130] It should be understood that the various embodiments of this disclosure and the terminology used therein are not intended to limit the technical features set forth herein to the specific embodiments, but rather to include various changes, equivalents, or substitutions to the respective embodiments. In the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that nouns in the singular form corresponding to terms may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as “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” may include any one or all possible combinations of the items enumerated together with the corresponding phrase among the plurality of phrases. As used herein, terms such as “first” and “second” or “first” and “second” may be used to simply distinguish one component from another and do not limit the components in other respects (e.g., importance or order). It will be understood that, whether the terms “operably” or “communically” are used or not, if an element (e.g., a first element) is referred to as “combined with another element (e.g., a second element),” “combined to another element (e.g., a second element),” “connected to another element (e.g., a second element),” or “connected to another element (e.g., a second element)”, it means that the element can be directly (e.g., wiredly) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0131] As used in connection with various embodiments of this disclosure, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms such as "logic," "logic block," "part," or "circuit." A module may be a single integrated component adapted to perform one or more functions, or the smallest unit or part of such a single integrated component. For example, according to embodiments, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0132] The various embodiments set forth herein can be implemented as software (e.g., program 140) containing one or more instructions readable by a machine (e.g., electronic device 101) stored in a storage medium (e.g., internal memory 136 or external memory 138). For example, under the control of a processor, the processor (e.g., processor 120) of the machine (e.g., electronic device 101) can invoke and execute at least one of the one or more instructions stored in the storage medium, with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. Machine-readable storage media may be provided in the form of non-transitory storage media. The term "non-transitory" simply means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but this term does not distinguish between data being stored semi-permanently in the storage medium and data being temporarily stored in the storage medium.

[0133] According to embodiments, methods according to various embodiments of this disclosure may be included and provided in a computer program product. The computer program product can 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., a compact disk read-only memory (CD-ROM)) or via an app store (e.g., the Play Store). TM The computer program product may be published online (e.g., downloaded or uploaded), or may be distributed directly between two user devices (e.g., smartphones) (e.g., downloaded or uploaded). If published online, at least a portion of the computer program product may be temporarily generated, or at least a portion of the computer program product may be temporarily stored in a machine-readable storage medium (such as the memory of a manufacturer's server, an app store's server, or a forwarding server).

[0134] According to various embodiments, each of the above components (e.g., a module or program) may include a single entity or multiple entities, and some of the multiple entities may be separately disposed in different components. According to various embodiments, one or more of the above components may be omitted, or one or more other components may be added. Optionally or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each of the multiple components in the same or similar manner as the corresponding component of the multiple components performed one or more functions before integration. According to various embodiments, the operations performed by a module, program, or other component may be performed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be run in a different order or omitted, or one or more other operations may be added.

Claims

1. An electronic device (101), comprising: Battery (230); Load (250); The converter (240) is configured to supply power to the load (250) based on the power supplied from the battery (230); First comparator circuit (851); Pulse Width Modulation (PWM) Control Circuit (830); First signal generation circuit (810); Drive logic circuit (840); and Controller (120; 260) The controllers (120; 260) are configured as follows: Using the first comparator circuit (851), a control voltage is output based on the output voltage of the converter (240) and the target voltage of the output voltage. Using the PWM control circuit (830), a basic signal is output based on the control voltage and the sawtooth wave. Using the first signal generation circuit (810), an on signal is output based on the basic signal. Using the driving logic circuit (840), a first driving signal is output based on the basic signal and the on signal, and Based on the first drive signal, control multiple switches (441; 442; 443; 444) of the converter (240).

2. The electronic device (101) as claimed in claim 1, wherein, The controller (120; 260) is configured to output the turn-on signal using the first signal generation circuit (810) based on the fact that the input voltage of the converter (240) is less than the sum of the output voltage and the first reference voltage.

3. The electronic device (101) as claimed in claim 1 or 2, wherein, The duty cycle of the turn-on signal is determined based on a value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage.

4. The electronic device (101) as claimed in any one of claims 1 to 3, wherein, The first signal generation circuit (810) includes a first limiter (812) and a first single-trigger oscillator (811). The first limiter (812) is configured to output a first output signal based on a first value obtained by subtracting the input voltage from the sum of the output voltage and the first reference voltage. The first single-trigger vibrator (811) is configured to output the turn-on signal based on the first output signal and the basic signal; Wherein, based on the first value being greater than 0 and less than or equal to the first reference value, the first output signal is proportional to the first value, and Wherein, based on the first value exceeding the first reference value, the first output signal is proportional to the first reference value.

5. The electronic device (101) as claimed in any one of claims 1 to 4 further includes a second signal generation circuit (820). in, The controllers (120; 260) are configured to: Using the second signal generation circuit (820), an extended signal is output based on the inverted output of the basic signal. Using the driving logic circuit (840), based on the basic signal, the turn-on signal, and the extended signal, a second driving signal is output, and The plurality of switches (441; 442; 443; 444) of the converter (240) are controlled based on the second drive signal.

6. The electronic device (101) as claimed in any one of claims 1 to 5, wherein, The controller (120; 260) is configured to output the extended signal using the second signal generation circuit (820) based on the fact that the input voltage of the converter (240) is less than a value obtained by subtracting a second reference voltage from the output voltage.

7. The electronic device (101) as claimed in any one of claims 1 to 6, wherein, The duty cycle of the extended signal is determined based on a value obtained by subtracting the input voltage from the output voltage, which is the value obtained by subtracting the second reference voltage from the output voltage.

8. The electronic device (101) as claimed in any one of claims 1 to 7, wherein, The second signal generation circuit (820) includes a second limiter (822) and a second single-trigger oscillator (821). The second limiter (822) is configured to output a second output signal based on a second value obtained by subtracting the input voltage from the output voltage: a value obtained by subtracting the second reference voltage from the output voltage. The second single-trigger vibrator (821) is configured to output the extended signal based on the inversion of the second output signal and the basic signal; Wherein, based on the second value being greater than 0 and less than or equal to the second reference value, the second output signal is proportional to the second value, and Wherein, based on the fact that the second value exceeds the second reference value, the second output signal is proportional to the second reference value.

9. The electronic device (101) as claimed in any one of claims 1 to 8, wherein, The converter (240) includes a first switch (441), a second switch (442), a third switch (443), a fourth switch (444), and an inductor. The first end of the first switch (441) is electrically connected to the battery (230). The first end of the second switch (442) is electrically connected to the second end of the first switch (441). The second terminal of the second switch (442) is electrically connected to ground. The first end of the third switch (443) is electrically connected to the load (250). The first terminal of the fourth switch (444) is electrically connected to the second terminal of the third switch (443). The second terminal of the fourth switch (444) is electrically connected to ground. Wherein, the first end of the inductor is electrically connected to the second end of the first switch (441), and The second end of the inductor is electrically connected to the second end of the third switch (443).

10. The electronic device (101) as claimed in any one of claims 1 to 9, wherein, The drive logic circuit (840) includes an AND gate, wherein the AND gate is configured to output a drive signal corresponding to the third switch (443) based on the basic signal and the turn-on signal.

11. A method for operating an electronic device (101), comprising: Based on the output voltage of the converter (240) of the electronic device (101) and the target voltage of the output voltage, an output control voltage is generated. Based on the control voltage and sawtooth wave output basic signal Based on the aforementioned basic signal, an on signal is output. Based on the basic signal and the turn-on signal, a first driving signal is output, and Based on the first drive signal, control multiple switches (441; 442; 443; 444) of the converter (240).

12. The method of claim 11, wherein, The output of the turn-on signal includes: outputting the turn-on signal based on the fact that the input voltage of the converter (240) is less than the sum of the output voltage and the first reference voltage.

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

14. A computer-readable recording medium storing instructions configured to cause a controller (120; 260) of an electronic device (101) to perform at least one operation. in, The at least one operation includes: Based on the output voltage of the converter (240) of the electronic device (101) and the target voltage of the output voltage, an output control voltage is generated. Based on the control voltage and sawtooth wave output basic signal Based on the aforementioned basic signal, an on signal is output. Based on the basic signal and the turn-on signal, a first drive signal is output, and Based on the first drive signal, control multiple switches (441; 442; 443; 444) of the converter (240).

15. The computer-readable recording medium of claim 14, wherein, The output of the turn-on signal includes: outputting the turn-on signal based on the fact that the input voltage of the converter (240) is less than the sum of the output voltage and the first reference voltage.

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