Electronic device including direct charger, operation method thereof, and recording medium

Abstract

This electronic device may comprise: a direct charger including a first MOSFET, a second MOSFET, a third MOSFET, and a fourth MOSFET, and configured to provide output power on the basis of input power provided from an external power provider; a battery configured to be charged on the basis of the output power provided through the direct charger; a pulse-width modulation (PWM) circuit configured to provide a first driving signal of the first MOSFET, provide a second driving signal of the second MOSFET, provide a third driving signal of the third MOSFET, and provide a fourth driving signal of the fourth MOSFET; an oscillator configured to provide a basic signal to the PMW circuit; a regulator configured to provide a first driving voltage of the first MOSFET and provide a second driving voltage of the second MOSFET on the basis of the input power; a driving circuit configured to provide a third driving voltage of the third MOSFET and provide a fourth driving voltage of the fourth MOSFET; and a PPS controller configured to provide a control signal for requesting control of the input power provided from the power provider. A duty cycle of the third driving signal and a duty cycle of the fourth driving signal may be adjusted by the PWM circuit on the basis of a battery voltage and a battery current of the battery and the basic signal provided from the oscillator. The magnitude of the third driving voltage and the magnitude of the fourth driving voltage may be adjusted by the driving circuit on the basis of the battery voltage and the battery current. Various other embodiments are also possible.

Description

Electronic device including direct charger and method of operation thereof and recording medium

[0001] The present disclosure relates to an electronic device including a direct charger, a method of operating the same, and a recording medium.

[0002] Typically, the efficiency of a switching charger using a buck converter is around 90%, which results in a loss of around 1.5W when delivering 15W of power. At this time, the surface temperature of the electronic device (e.g., a smartphone) rises to around 38-39 degrees Celsius. When processing 40W of power, a loss of 4W occurs, and the surface heat rises to over 60 degrees Celsius. To solve this problem, a direct charger method using a switched capacitor voltage divider with an efficiency of over 96% has been widely used recently. Since the switched capacitor voltage divider operates with a given fixed voltage conversion ratio, it controls the voltage and current provided by the charger (e.g., a travel adapter) connected to the electronic device. This method is called direct charging. The industry standard USB PD (universal serial bus power delivery) 3.0 includes a PPS (programmable power supply) function for this direct charging, which can be used to adjust the output voltage and output current of the charger. In electronic devices, the voltage and current of the battery are monitored and the output voltage and output current of the charger are controlled through digital communication so that the required charging voltage and charging current can be supplied.

[0003] According to one embodiment, an electronic device includes a first metal-oxide-semiconductor field effect transistor (MOSFET), a second MOSFET, a third MOSFET, and a fourth MOSFET, and a direct charger configured to provide output power based on input power provided from an external power provider, a battery configured to be charged based on the output power provided through the direct charger, a pulse-width modulation (PWM) circuit configured to provide a first driving signal of the first MOSFET, a second driving signal of the second MOSFET, a third driving signal of the third MOSFET, and a fourth driving signal of the fourth MOSFET, an oscillator configured to provide a basic signal to the PWM circuit, a regulator configured to provide a first driving voltage of the first MOSFET and a second driving voltage of the second MOSFET based on the input power, a third driving voltage of the third MOSFET, and a fourth driving voltage of the fourth MOSFET. A driving circuit configured to provide a power supply, and a programmable power supply (PPS) controller configured to provide a control signal for requesting control of the input power provided from the power provider. The duty cycle of the third driving signal and the duty cycle of the fourth driving signal can be adjusted by the PWM circuit based on the battery voltage, the battery current, and the basic signal provided from the oscillator. The magnitude of the third driving voltage and the magnitude of the fourth driving voltage can be adjusted by the driving circuit based on the battery voltage and the battery current.

[0004] According to one embodiment, a method of operating an electronic device may include providing output power based on input power provided from an external power provider through a direct charger including a first metal-oxide-semiconductor field effect transistor (MOSFET), a second MOSFET, a third MOSFET, and a fourth MOSFET. The method may include charging a battery based on the output power provided through the direct charger. The method may include providing a first driving signal of the first MOSFET, a second driving signal of the second MOSFET, a third driving signal of the third MOSFET, and a fourth driving signal of the fourth MOSFET through a pulse-width modulation (PWM) circuit. The method may include providing a base signal to the PWM circuit through an oscillator. The method may include an operation of providing a first driving voltage of the first MOSFET and a second driving voltage of the second MOSFET based on the input power through a regulator. The method may include an operation of providing a third driving voltage of the third MOSFET and a fourth driving voltage of the fourth MOSFET through a driving circuit. The method may include an operation of providing a control signal for requesting control of the input power provided from the power provider through a programmable power supply (PPS) controller. A duty cycle of the third driving signal and a duty cycle of the fourth driving signal may be adjusted by the PWM circuit based on a battery voltage of the battery, a battery current, and the basic signal provided from the oscillator.The magnitude of the third driving voltage and the magnitude of the fourth driving voltage can be adjusted by the driving circuit based on the battery voltage and the battery current.

[0005] According to one embodiment, a non-transitory computer-readable recording medium storing instructions, the instructions, when individually or collectively executed by at least one processor of an electronic device, cause the electronic device to perform at least one operation. The at least one operation may include providing output power based on input power provided from an external power provider via a direct charger including a first metal-oxide-semiconductor field effect transistor (MOSFET), a second MOSFET, a third MOSFET, and a fourth MOSFET. The at least one operation may include charging a battery based on the output power provided via the direct charger. The at least one operation may include providing a first driving signal of the first MOSFET, a second driving signal of the second MOSFET, a third driving signal of the third MOSFET, and a fourth driving signal of the fourth MOSFET through a pulse-width modulation (PWM) circuit. The at least one operation may include providing a basic signal to the PWM circuit through an oscillator. The at least one operation may include providing a first driving voltage of the first MOSFET and a second driving voltage of the second MOSFET based on the input power through a regulator. The at least one operation may include providing a third driving voltage of the third MOSFET and a fourth driving voltage of the fourth MOSFET through a driving circuit.The at least one operation may include providing a control signal for requesting control of the input power provided from the power provider through a programmable power supply (PPS) controller. A duty cycle of the third driving signal and a duty cycle of the fourth driving signal may be adjusted by the PWM circuit based on a battery voltage of the battery, a battery current, and the basic signal provided from the oscillator. A magnitude of the third driving voltage and a magnitude of the fourth driving voltage may be adjusted by the driving circuit based on the battery voltage and the battery current.

[0006] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0007] FIG. 2 is a block diagram of an electronic device according to one embodiment.

[0008] FIG. 3 is a circuit diagram of an electronic device according to one embodiment.

[0009] FIG. 4 is a flowchart of a method of operating an electronic device according to one embodiment.

[0010] FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0011] FIG. 6 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0012] FIG. 7 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0013] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100), according to one embodiment.

[0014] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0015] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0016] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0017] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0018] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0019] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0020] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0021] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0022] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0023] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0024] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0025] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0026] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0027] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0028] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0029] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0030] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0031] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for realizing 1eMBB, a loss coverage (e.g., 164 dB or less) for realizing mMTC, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for realizing URLLC.

[0032] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0033] According to various embodiments, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0034] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0035] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0036] FIG. 2 is a block diagram of an electronic device (101) according to one embodiment. FIG. 3 is a circuit diagram of an electronic device (101) according to one embodiment.

[0037] According to one embodiment, the electronic device (101) may include at least some of the components disclosed in FIG. 2.

[0038] Referring to FIG. 2, according to one embodiment, an electronic device (101) may include an input metal-oxide-semiconductor field effect transistor (MOSFET) (210), a direct charger (220), a load (230), a battery (240), a regulator (250), a pulse-width modulation (PWM) circuit (260), a drive circuit (270), a programmable power supply (PPS) controller (280), a voltage comparator (291), a current comparator (292), a minimum selector (293), and / or an oscillator (294).

[0039] In one embodiment, the electronic device (101) may receive power (e.g., input power) via a wire from an external power provider (299) (e.g., a charger (e.g., a travel adapter)).

[0040] In one embodiment, the direct charger (220) may be configured to provide output power to the load (230) and / or the battery (240) based on input power provided from the power provider (299). The electronic device (101) may provide output power to the load (230) and / or the battery (240) based on input power provided from the power provider (299) through the direct charger (220). For example, the direct charger (220) may operate with a target conversion ratio (e.g., 2:1). For example, the ratio of the input voltage to the output voltage of the direct charger (220) may be the target conversion ratio (e.g., 2:1). For example, the ratio of the output current to the input current of the direct charger (220) may be the target conversion ratio (e.g., 2:1). According to one embodiment, referring to FIG. 3, the direct charger (220) may include a first metal-oxide-semiconductor field effect transistor (MOSFET) (321) (e.g., Q1 in FIG. 3), a second MOSFET (322) (e.g., Q2 in FIG. 3), a third MOSFET (323) (e.g., Q3 in FIG. 3), a fourth MOSFET (324) (e.g., Q4 in FIG. 3), and a capacitor (325). The direct charger (220) may receive input power through an input terminal (e.g., a first terminal of the first MOSFET (321)). A second terminal of the first MOSFET (321) may be electrically connected to a first terminal of the second MOSFET (322). A second terminal of the second MOSFET (322) may be electrically connected to a first terminal of the third MOSFET (323). The second terminal of the third MOSFET (323) may be electrically connected to the first terminal of the fourth MOSFET (324). The second terminal of the fourth MOSFET (324) may be electrically connected to ground. The first terminal of the capacitor (325) of the direct charger (220) may be electrically connected to the second terminal of the first MOSFET (321) and the first terminal of the second MOSFET (322).The second terminal of the capacitor (325) of the direct charger (220) can be electrically connected to the second terminal of the third MOSFET (323) and the first terminal of the fourth MOSFET (324). The direct charger (220) can output output power through an output terminal (e.g., the second terminal of the second MOSFET (322) and the first terminal of the third MOSFET (323)).

[0041] In one embodiment, the battery (240) may be configured to be charged based on the output power provided through the direct charger (220). The electronic device (101) may charge the battery (240) based on the output power provided through the direct charger (220).

[0042] In one embodiment, the load (230) may be configured to operate based on the output power provided through the direct charger (220). A component of the electronic device (101) including a processor (120), a camera, and audio may be referred to as the load (230). The electronic device (101) may operate the load (230) based on the output power provided through the direct charger (220).

[0043] In one embodiment, the input MOSFET (210) may be electrically connected to the direct charger (220). Electrically, the input MOSFET (210) may be positioned between the direct charger (220) and the power provider (299). The input MOSFET (210) may be configured to prevent power leakage from the direct charger (220) toward the power provider (299). The input MOSFET (210) may be a switch for controlling power input or output between the input power source (VBUS) and the direct charger (220).

[0044] According to one embodiment, the regulator (250) may be configured to provide a first driving voltage of the first MOSFET (321) and a second driving voltage of the second MOSFET (322) based on input power (e.g., power provided from the power provider (299)). The driving voltage may be a gate voltage for operation of the MOSFET. The electronic device (101) may provide the first driving voltage of the first MOSFET (321) and the second driving voltage of the second MOSFET (322) based on the input power through the regulator (250).

[0045] According to one embodiment, the drive circuit (270) may be configured to provide a third drive voltage of the third MOSFET (323) and a fourth drive voltage of the fourth MOSFET (324). The electronic device (101) may provide the third drive voltage of the third MOSFET (323) and the fourth drive voltage of the fourth MOSFET (324) through the drive circuit (270). According to one embodiment, the magnitude of the third drive voltage of the third MOSFET (323) and the magnitude of the fourth drive voltage of the fourth MOSFET (324) may be adjusted by the drive circuit (270) based on the battery voltage and battery current of the battery (240).

[0046] According to one embodiment, the PWM circuit (260) may be configured to provide a first driving signal (e.g., G1 of FIG. 3) of the first MOSFET (321), a second driving signal (e.g., G2 of FIG. 3) of the second MOSFET (322), a third driving signal (e.g., G3 of FIG. 3) of the third MOSFET (323), and a fourth driving signal (e.g., G4 of FIG. 3) of the fourth MOSFET (324). The driving signals may be signals for PWM control of the MOSFETs (e.g., the first MOSFET (321) to the fourth MOSFET (324)). The MOSFETs (e.g., the first MOSFET (321) to the fourth MOSFET (324)) may perform a PWM operation based on the driving signals and the driving voltages. The electronic device (101) may provide a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324) through the PWM circuit (260). Referring to FIG. 3, according to one embodiment, the PWM circuit (260) may include a pulse signal generator (363), an inverting logic gate (361), a first multiplication logic gate (362), and a second multiplication logic gate (364), but it will be understood by those skilled in the art that this is merely an example. According to one embodiment, the duty cycle of the third drive signal of the third MOSFET (323) and the duty cycle of the fourth drive signal of the fourth MOSFET (324) can be adjusted by the PWM circuit (260) based on the battery voltage of the battery (240), the battery current, and the base signal provided from the oscillator (294).

[0047] According to one embodiment, the oscillator (294) may be configured to provide a basic signal to the PWM circuit (260). The basic signal provided from the oscillator (294) may include a sawtooth wave and a square wave. The electronic device (101) may provide the basic signal to the PWM circuit (260) through the oscillator (294). The PWM circuit (260) may provide a driving signal (e.g., G1, G2, G3, G4) based on the basic signal (e.g., sawtooth wave and square wave) provided from the oscillator (294).

[0048] According to one embodiment, the PPS controller (280) may be configured to provide a control signal for requesting control of input power provided from the power provider (299). The electronic device (101) may provide, through the PPS controller (280), a control signal (e.g., a signal provided through digital communication between the electronic device (101) and the power provider (299)) for requesting control of input power provided from the power provider (299). The electronic device (101) may provide, through the PPS controller (280), the control signal to the power provider (299) based on the battery voltage and battery current of the battery (240). The power provider (299) can control the power (e.g., input power) (e.g., voltage and / or current of power provided by the power provider (299)) provided to the electronic device (101) based on a control signal provided from the PPS controller (280) of the electronic device (101).

[0049] According to one embodiment, the voltage comparator (291) (e.g., the first error amplifier) ​​may be configured to output a voltage error signal by comparing a battery voltage of the battery (240) (e.g., V_VBAT of FIG. 3) with a target voltage (e.g., V_VB_REF of FIG. 3). The battery voltage (e.g., V_VBAT of FIG. 3) may be a voltage of an output terminal of the direct charger (220). The battery voltage (e.g., V_VBAT of FIG. 3) may be a voltage of an input terminal of the load (230). The electronic device (101) may output a voltage error signal by comparing the battery voltage with a target voltage through the voltage comparator (291). For example, the voltage comparator (291) may be configured to output a voltage error signal proportional to a difference between the target voltage and the battery voltage. The voltage error signal output from the voltage comparator (291) may have an upper limit and a lower limit set. For example, if the difference between the target voltage and the battery voltage exceeds the reference value, the voltage error signal output from the voltage comparator (291) may have a value corresponding to the upper limit. For example, if the battery voltage exceeds the target voltage, the voltage error signal output from the voltage comparator (291) may have a value corresponding to the lower limit.

[0050] According to one embodiment, the current comparator (292) (e.g., the second error amplifier) ​​may be configured to output a current error signal by comparing a battery current (e.g., V_IBAT of FIG. 3) of the battery (240) with a target current (e.g., V_IB_REF of FIG. 3). The electronic device (101) may output the current error signal by comparing the battery current and the target current through the current comparator (292). For example, the current comparator (292) may be configured to output a current error signal proportional to the difference between the target current and the battery current. The current error signal output from the current comparator (292) may have an upper limit and a lower limit set. For example, if the difference between the target current and the battery current exceeds a reference value, the current error signal output from the current comparator (292) may have a value corresponding to the upper limit. For example, if the battery current exceeds the target current, the current error signal output from the current comparator (292) may have a value corresponding to the lower limit.

[0051] According to one embodiment, the minimum selector (293) may be configured to output a minimum error signal having a smaller value between the value of the voltage error signal and the value of the current error signal. The electronic device (101) may output a minimum error signal having a smaller value between the value of the voltage error signal and the value of the current error signal through the minimum selector (293).

[0052] In one embodiment, the minimum selector (293) may be configured to be electrically connected to the PWM circuit (260). In one embodiment, the PWM circuit (260) may be configured to provide a first drive signal, a second drive signal, a third drive signal, and a fourth drive signal based on a base signal (e.g., a sawtooth wave and a square wave) provided from the oscillator (294) and a minimum error signal output from the minimum selector (293). In one embodiment, the PWM circuit (260) may generate a pulse signal by comparing the sawtooth wave with the minimum error signal. The PWM circuit (260) may be configured to provide the first drive signal, the second drive signal, the third drive signal, and the fourth drive signal based on the pulse signal and the square wave. In one embodiment, the PWM circuit (260) may be configured to provide the first drive signal, which is identical to the square wave, to the first MOSFET (321). The PWM circuit (260) may be configured to provide a second driving signal, which is an inversion of a square wave, to the second MOSFET (322). The PWM circuit (260) may be configured to provide a third driving signal to the third MOSFET (323) based on the product of the pulse signal and the square wave. For example, the second product logic gate (364) (e.g., an AND gate) may output a high-state output signal when both signals (e.g., the pulse signal and the square wave) are input in a high state. Based on the product of the pulse signal and the square wave, the third driving signal may be equal to the first driving signal when the minimum error signal is maximum, and the duty cycle of the third driving signal may decrease as the minimum error signal decreases. The PWM circuit (260) may be configured to provide a fourth driving signal to the fourth MOSFET (324) based on the product of the pulse signal and the inversion of the square wave. Based on the product of the pulse signal and the inversion of the square wave, the fourth driving signal is equal to the second driving signal when the minimum error signal is maximum, and the duty cycle of the fourth driving signal can decrease as the minimum error signal decreases.

[0053] According to one embodiment, the minimum selector (293) may be configured to be electrically connected to the driving circuit (270). The third driving voltage of the third MOSFET (323) and the fourth driving voltage of the fourth MOSFET (324) may be adjusted by the driving circuit (270) to be proportional to the minimum error signal provided from the minimum selector (293).

[0054] According to one embodiment, the electronic device (101) may include a first level shifter (331) between the PWM circuit (260) and the first MOSFET (321), a second level shifter (332) between the PWM circuit (260) and the second MOSFET (322), and a third level shifter (333) between the PWM circuit (260) and the third MOSFET (323). The level shifters (e.g., 331, 332, 333) may be configured to increase a voltage in relation to a drive signal (e.g., G1, G2, G3) provided to the level shifters.

[0055] According to one embodiment, the electronic device (101) may include a first amplifier (311) configured to provide a gate voltage to a first MOSFET (321), a second amplifier (312) configured to provide a gate voltage to a second MOSFET (322), a third amplifier (313) configured to provide a gate voltage to a third MOSFET (323), and a fourth amplifier (314) configured to provide a gate voltage to a fourth MOSFET (324). The first amplifier (311) may be configured to provide a gate voltage to the first MOSFET (321) based on a first drive voltage and a first drive signal. The second amplifier (312) may be configured to provide a gate voltage to the second MOSFET (322) based on a second drive voltage and a second drive signal. The third amplifier (313) may be configured to provide a gate voltage to the third MOSFET (323) based on the third driving voltage and the third driving signal. The fourth amplifier (314) may be configured to provide a gate voltage to the fourth MOSFET (324) based on the fourth driving voltage and the fourth driving signal.

[0056] An electronic device (101) according to one embodiment may include a processor (120) including a processing circuit. An electronic device (101) according to one embodiment may include a memory (130) including a storage circuit.

[0057] In this document, the electronic device (101) performing a specific operation may mean that various hardware included in the electronic device (101), for example, at least one processor (120) such as an MCU (micro controlling unit), an FPGA (field programmable gate array), an ASIC (application specific integrated circuit), a microprocessor, or an AP (application processor), performs the specific operation. The electronic device (101) performing the specific operation may also mean that at least one processor (120) controls other hardware to perform the specific operation. The electronic device (101) performing the specific operation may also mean that at least one instruction for performing the specific operation stored in a storage circuit of the electronic device (101) (e.g., the memory (130) of FIG. 1) is executed, thereby causing the processor (120) or other hardware to perform the specific operation. At least one instruction stored in the memory (130) of the electronic device (101), when executed by at least one processor (120), may cause the electronic device (101) to perform at least one operation. Even when a plurality of processors (120) are implemented, for convenience of explanation, the instructions may be described as “operations of the electronic device (101),” “operations of the processor (120),” or “operations of at least one processor (120).”

[0058] The operations of the electronic device (101) can be described in detail with reference to the embodiments described above (e.g., the embodiments of FIGS. 1 to 3) and the embodiments described below (e.g., the embodiments of FIGS. 4 to 7). Although each embodiment is disclosed in a separate drawing and a separate paragraph, this is merely for convenience of explanation, and at least some of the embodiments described above and at least some of the embodiments described below can be applied together. At least some of the embodiments described above and at least some of the embodiments described below may be omitted.

[0059] FIG. 4 is a flowchart illustrating a method of operating an electronic device according to one embodiment. FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment. FIG. 6 is a diagram illustrating the operation of an electronic device according to one embodiment. FIG. 7 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0060] At least some of the operations of FIG. 4 may be omitted. The order of the operations of FIG. 4 may be changed. Operations other than those of FIG. 4 may be performed before, during, or after the operations of FIG. 4.

[0061] The specific operation method of the operations of Fig. 4 can be understood through the descriptions of Figs. 2 and 3.

[0062] Referring to FIG. 4, in operation 401, according to one embodiment, the electronic device (101) may receive input power provided from the power provider (299).

[0063] In operation 403, according to one embodiment, the electronic device (101) may perform a converting operation based on input power through the direct charger (220). For example, the direct charger (220) may operate with a target conversion ratio (e.g., 2:1). For example, the ratio of the input voltage and output voltage of the direct charger (220) may be the target conversion ratio (e.g., 2:1). For example, the ratio of the output current and input current of the direct charger (220) may be the target conversion ratio (e.g., 2:1). The battery (240) may be charged based on the output power provided through the direct charger (220).

[0064] In operation 405, according to one embodiment, the electronic device (101) may adjust the duty cycle of the third driving signal of the third MOSFET (323) and the duty cycle of the fourth driving signal of the fourth MOSFET (324) by the PWM circuit (260) based on the battery voltage and battery current of the battery (240). For example, the electronic device (101) may output a voltage error signal by comparing the battery voltage of the battery (240) with a target voltage through the voltage comparator (291). The voltage error signal is proportional to the difference between the target voltage and the battery voltage, and the voltage error signal may have an upper limit and a lower limit set. For example, if the difference between the target voltage and the battery voltage exceeds a reference value, the voltage error signal output from the voltage comparator (291) may have a value corresponding to the upper limit. For example, if the battery voltage exceeds the target voltage, the voltage error signal output from the voltage comparator (291) may have a value corresponding to the lower limit. The electronic device (101) may output a current error signal by comparing the battery current and the target current through the current comparator (292). The current error signal is proportional to the difference between the target current and the battery current, and the current error signal may have an upper limit and a lower limit set. For example, if the difference between the target current and the battery current exceeds a reference value, the current error signal output from the current comparator (292) may have a value corresponding to the upper limit. For example, if the battery current exceeds the target current, the current error signal output from the current comparator (292) may have a value corresponding to the lower limit. The electronic device (101) may output a minimum error signal having a smaller value between the value of the voltage error signal and the value of the current error signal through the minimum selector (293). The electronic device (101) can generate a pulse signal by comparing the sawtooth wave provided from the oscillator (294) with the minimum error signal through the PWM circuit (260).The electronic device (101) can provide a first driving signal, a second driving signal, a third driving signal, and a fourth driving signal based on a pulse signal and a square wave and / or a pulse signal provided from an oscillator (294) through a PWM circuit (260). The first driving signal of the first MOSFET (321) provided from the PWM circuit (260) may be the same as the square wave provided from the oscillator (294). The second driving signal of the second MOSFET (322) provided from the PWM circuit (260) may be an inversion of the square wave provided from the oscillator (294). Based on the product of the pulse signal and the square wave, the third driving signal of the third MOSFET (323) provided from the PWM circuit (260) may be the same as the first driving signal of the first MOSFET (321) when the minimum error signal is at its maximum, and the duty cycle of the third driving signal may decrease as the minimum error signal decreases. Based on the product of the pulse signal and the inversion of the square wave, the fourth driving signal of the fourth MOSFET (324) provided from the PWM circuit (260) is identical to the second driving signal of the second MOSFET (322) when the minimum error signal is at its maximum, and the duty cycle of the fourth driving signal may decrease as the minimum error signal decreases.

[0065] In operation 407, according to one embodiment, the electronic device (101) may adjust the magnitude of the third driving voltage of the third MOSFET (323) and the magnitude of the fourth driving voltage of the fourth MOSFET (324) by the driving circuit (270) based on the battery voltage and battery current of the battery (240). For example, the electronic device (101) may adjust the magnitude of the third driving voltage of the third MOSFET (323) and the magnitude of the fourth driving voltage of the fourth MOSFET (324) by the driving circuit (270) so as to be proportional to the minimum error signal provided from the minimum selector (293).

[0066] In one embodiment, operation 405 or operation 407 may be omitted.

[0067] In operation 409, according to one embodiment, the electronic device (101) may perform a converting operation through the direct charger (220). For example, the electronic device (101) may perform a converting operation through the direct charger (220) based on the duty cycle adjusted in operation 405 and the magnitude adjusted in operation 407. For example, the electronic device (101) may perform a converting operation through the direct charger (220) based on the duty cycle adjusted in operation 405. For example, the electronic device (101) may perform a converting operation through the direct charger (220) based on the magnitude of the driving voltage adjusted in operation 407.

[0068] Based on the operations of FIG. 4, the input MOSFET (210) may not be operated as a linear regulator. Based on the operations of FIG. 4, the input MOSFET (210) may be used only for reverse blocking (e.g., preventing power leakage from the direct charger (220) toward the power supply (299). Accordingly, the size of the IC (integrated circuit) by the input MOSFET (210) may be reduced, and the efficiency of the input MOSFET (210) may be increased.

[0069] Based on the operations of FIG. 4, the PWM duty cycle of the lower two switches (e.g., the third MOSFET (323) and the fourth MOSFET (324)) of the direct charger (220) can be controlled, and the gate drive voltages of the lower two switches (e.g., the third MOSFET (323) and the fourth MOSFET (324)) can be controlled. Based on the operations of FIG. 4, the output voltage and output current of the direct charger (220) can be limited as soon as the duty cycles of the third MOSFET (323) and the fourth MOSFET (324) decrease from the initial value of 50%. Based on the operations of FIG. 4, the gate drive voltages of the lower two switches (e.g., the third MOSFET (323) and the fourth MOSFET (324)), whose gate drive voltages are easily variable, are varied, so that the range of regulation can be widened compared to the general PWM method.

[0070] In FIGS. 5, 6, and 7, “VDD / V” (e.g., VDD[V]) may be a graph of a driving voltage (e.g., a gate voltage of a MOSFET). In FIGS. 5, 6, and 7, “V” may be a graph of an input voltage (e.g., Vin) and an output voltage (e.g., Vout) of the direct charger (220). For example, in FIG. 5, the input voltage (e.g., Vin) of the direct charger (220) may be 8.3[V], and the output voltage (e.g., Vout) of the direct charger (220) may be 4[V]. For example, in FIG. 6, the input voltage (e.g., Vin) of the direct charger (220) may be 8.5[V], and the output voltage (e.g., Vout) of the direct charger (220) may be 4[V]. For example, in FIG. 7, the input voltage (e.g., Vin) of the direct charger (220) may be 9.6 [V], and the output voltage (e.g., Vout) of the direct charger (220) may be 4 [V]. In FIGS. 5, 6, and 7, “VS” may be a graph of a sawtooth wave and a minimum error signal. In FIGS. 5, 6, and 7, “Ic / A” (e.g., Ic[A]) may be the current of the capacitor (325) of the direct charger (220).

[0071] Fig. 5 shows a case where both the output voltage and output current of the direct charger (220) are lower than the control target values ​​(e.g., target voltage, target current), so that both the voltage error signal and the current error signal have maximum values ​​and there is no power limiting operation (e.g., an operation for adjusting the duty cycle of the driving signal and an operation for adjusting the size of the driving voltage). In this case, the driving signals of G1, G2, G3, and G4 can have a duty cycle of 50%.

[0072] FIG. 6 illustrates a case where one of the output voltage and output current of the direct charger (220) reaches a control target (e.g., target voltage, target current), the minimum error signal begins to decrease, and a power limiting operation of a limited range (e.g., an operation of adjusting the duty cycle of the driving signal) is performed. At this time, the duty cycle of the driving signals of G3 and G4 is shown to be reduced to 50% or less. In this case, the driving signals of G1 and G4 can still maintain a duty cycle of 50%. This operation can be used within a regulation range of about 200 to 300 mV. According to one embodiment, an operation of adjusting the magnitude of the driving voltage may also be performed simultaneously.

[0073] Fig. 7 shows a case where the lowest error signal of the direct charger (220) is lowered and a wide range of power limiting operations (e.g., an operation for adjusting the duty cycle of the driving signal and an operation for adjusting the magnitude of the driving voltage) are performed. At this time, the duty cycles of the driving signals of G3 and G4 are further reduced than in the case of Fig. 6, and the driving signals of G1 and G2 can still maintain a duty cycle of 50%. In addition, it can be seen that the driving voltage (e.g., VDD), which becomes the gate driving signal of Q3 and Q4, is also reduced, effectively limiting the input power of the direct charger (220). This operation can be used in a wide regulation range of 400 mV or more.

[0074] Those skilled in the art will appreciate that the embodiments described herein may be applied interchangeably, within the scope of their applicability. For example, those skilled in the art will appreciate that at least some operations of one embodiment described herein may be omitted and applied, or at least some operations of one embodiment may be applied in conjunction.

[0075] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those with ordinary skill in the technical field to which this document pertains from the description below.

[0076] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0077] According to one embodiment, an electronic device (101) includes a direct charger (220) configured to provide output power based on input power provided from an external power provider (299), including a first metal-oxide-semiconductor field effect transistor (MOSFET) (321), a second MOSFET (322), a third MOSFET (323), and a fourth MOSFET (324), a battery (240) configured to be charged based on the output power provided through the direct charger (220), a pulse-width modulation (PWM) circuit (260) configured to provide a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324), and configured to provide a basic signal to the PWM circuit (260). An oscillator (294) may be included. The duty cycle of the third driving signal and the duty cycle of the fourth driving signal may be adjusted by the PWM circuit (260) based on the battery voltage and battery current of the battery (240) and the basic signal provided from the oscillator (294).

[0078] According to one embodiment, the electronic device (101) may include a voltage comparator (291) configured to output a voltage error signal by comparing the battery voltage with a target voltage, a current comparator (292) configured to output a current error signal by comparing the battery current with a target current, and a minimum selector (293) configured to output a minimum error signal having a smaller value between a value of the voltage error signal and a value of the current error signal. The minimum selector (293) may be configured to be electrically connected to the PWM circuit (260). The PWM circuit (260) may be configured to provide the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the basic signal provided from the oscillator (294) and the minimum error signal output from the minimum selector (293).

[0079] According to one embodiment, the basic signal provided from the oscillator (294) may include a sawtooth wave and a square wave. The PWM circuit (260) may be configured to generate a pulse signal by comparing the sawtooth wave with the minimum error signal, and provide the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the pulse signal and the square wave.

[0080] According to one embodiment, the PWM circuit (260) may be configured to provide the first driving signal, which is identical to the square wave, to the first MOSFET (321), the second driving signal, which is an inversion of the square wave, to the second MOSFET (322), the third driving signal, based on the product of the pulse signal and the square wave, to the third MOSFET (323), and the fourth driving signal, based on the product of the pulse signal and the inversion of the square wave, to the fourth MOSFET (324).

[0081] In one embodiment, based on the product of the pulse signal and the square wave, the third drive signal may be identical to the first drive signal when the minimum error signal is at a maximum, and a duty cycle of the third drive signal may decrease as the minimum error signal decreases. Based on the product of the pulse signal and the inversion of the square wave, the fourth drive signal may be identical to the second drive signal when the minimum error signal is at a maximum, and a duty cycle of the fourth drive signal may decrease as the minimum error signal decreases.

[0082] According to one embodiment, the voltage comparator (291) may be configured to output the voltage error signal proportional to the difference between the target voltage and the battery voltage. The voltage error signal output from the voltage comparator (291) may have an upper limit and a lower limit set. The current comparator (292) may be configured to output the current error signal proportional to the difference between the target current and the battery current. The current error signal output from the current comparator (292) may have an upper limit and a lower limit set.

[0083] According to one embodiment, the first MOSFET (321) may be driven based on a first driving voltage. The second MOSFET (322) may be driven based on a second driving voltage. The third MOSFET (323) may be driven based on a third driving voltage. The fourth MOSFET (324) may be driven based on a fourth driving voltage. The electronic device (101) may include a driving circuit (270) configured to provide the third driving voltage of the third MOSFET (323) and the fourth driving voltage of the fourth MOSFET (324). The magnitude of the third driving voltage and the magnitude of the fourth driving voltage may be adjusted by the driving circuit (270) based on the battery voltage and the battery current.

[0084] In one embodiment, the minimum selector (293) may be configured to be electrically connected to the driving circuit (270). The third driving voltage and the fourth driving voltage may be adjusted by the driving circuit (270) to be proportional to the minimum error signal.

[0085] According to one embodiment, the electronic device (101) may include a regulator (250) configured to provide the first driving voltage of the first MOSFET (321) and the second driving voltage of the second MOSFET (322) based on the input power provided from the power provider (299).

[0086] According to one embodiment, the electronic device (101) may include a first level shifter (331) between the PWM circuit (260) and the first MOSFET (321), a second level shifter (332) between the PWM circuit (260) and the second MOSFET (322), and a third level shifter (333) between the PWM circuit (260) and the third MOSFET (323).

[0087] According to one embodiment, the electronic device (101) may include an input MOSFET (210) electrically connected to the direct charger (220). The input MOSFET (210) may be configured to prevent power leakage from the direct charger (220) toward the power provider (299).

[0088] According to one embodiment, the electronic device (101) may include a programmable power supply (PPS) controller (280) configured to provide a control signal for requesting control of the input power provided from the power provider (299).

[0089] According to one embodiment, a method of operating an electronic device (101) may include providing output power based on input power provided from an external power provider (299) through a direct charger (220) including a first metal-oxide-semiconductor field effect transistor (MOSFET) (321), a second MOSFET (322), a third MOSFET (323), and a fourth MOSFET (324). The method may include charging a battery (240) based on the output power provided through the direct charger (220). The method may include an operation of providing a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324) through a PWM (pulse-width modulation) circuit (260). The method may include an operation of providing a basic signal to the PWM circuit (260) through an oscillator (294). A duty cycle of the third driving signal and a duty cycle of the fourth driving signal may be adjusted by the PWM circuit (260) based on a battery voltage of the battery (240), a battery current, and the basic signal provided from the oscillator (294).

[0090] According to one embodiment, the method may include an operation of outputting a voltage error signal by comparing the battery voltage with a target voltage through a voltage comparator (291). The method may include an operation of outputting a current error signal by comparing the battery current with a target current through a current comparator (292). The method may include an operation of outputting a minimum error signal having a smaller value between a value of the voltage error signal and a value of the current error signal through a minimum selector (293). The operation of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) may include an operation of providing the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the basic signal provided from the oscillator (294) and the minimum error signal output from the minimum selector (293) through the PWM circuit (260) configured to be electrically connected to the minimum selector (293).

[0091] According to one embodiment, in the method, the basic signal provided from the oscillator (294) may include a sawtooth wave and a square wave. The operation of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) may include an operation of generating a pulse signal by comparing the sawtooth wave with the minimum error signal, and an operation of providing the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the pulse signal and the square wave.

[0092] According to one embodiment, in the method, the operations of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) may include: providing the first driving signal identical to the square wave to the first MOSFET (321), providing the second driving signal, which is an inversion of the square wave, to the second MOSFET (322), providing the third driving signal to the third MOSFET (323) based on a product of the pulse signal and the square wave, and providing the fourth driving signal to the fourth MOSFET (324) based on a product of the pulse signal and the inversion of the square wave.

[0093] In one embodiment, in the method, based on the product of the pulse signal and the square wave, the third driving signal may be identical to the first driving signal when the minimum error signal is at a maximum, and a duty cycle of the third driving signal may decrease as the minimum error signal decreases. Based on the product of the pulse signal and the inversion of the square wave, the fourth driving signal may be identical to the second driving signal when the minimum error signal is at a maximum, and a duty cycle of the fourth driving signal may decrease as the minimum error signal decreases.

[0094] In one embodiment, in the method, the voltage error signal may be proportional to the difference between the target voltage and the battery voltage. The voltage error signal may have an upper limit and a lower limit set. The current error signal may be proportional to the difference between the target current and the battery current. The current error signal may have an upper limit and a lower limit set.

[0095] According to one embodiment, in the method, the first MOSFET (321) may be driven based on a first driving voltage. The second MOSFET (322) may be driven based on a second driving voltage. The third MOSFET (323) may be driven based on a third driving voltage. The fourth MOSFET (324) may be driven based on a fourth driving voltage. The method may include an operation of providing a third driving voltage to the third MOSFET (323) and providing a fourth driving voltage to the fourth MOSFET (324) through a driving circuit (270). The magnitude of the third driving voltage and the magnitude of the fourth driving voltage may be adjusted based on the battery voltage and the battery current by the driving circuit (270).

[0096] According to one embodiment, in the method, the third driving voltage and the fourth driving voltage can be adjusted by the driving circuit (270) to be proportional to the minimum error signal.

[0097] According to one embodiment, the method may include providing a first driving voltage of the first MOSFET (321) and providing a second driving voltage of the second MOSFET (322) based on the input power through the regulator (250).

[0098] According to one embodiment, the method may include providing a control signal to request control of the input power provided from the power provider (299) through a programmable power supply (PPS) controller (280).

[0099] According to one embodiment, a non-transitory computer-readable recording medium storing instructions may cause the instructions, when individually or collectively executed by at least one processor of the electronic device (101), to perform at least one operation. The at least one operation may include providing output power based on input power provided from an external power provider (299) through a direct charger (220) including a first metal-oxide-semiconductor field effect transistor (MOSFET) (321), a second MOSFET (322), a third MOSFET (323), and a fourth MOSFET (324). The at least one operation may include charging a battery (240) based on the output power provided through the direct charger (220). The at least one operation may include providing a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324) through a PWM (pulse-width modulation) circuit (260). The at least one operation may include providing a basic signal to the PWM circuit (260) through an oscillator (294). The at least one operation may include providing a first driving voltage of the first MOSFET (321) and a second driving voltage of the second MOSFET (322) based on the input power through a regulator (250).The at least one operation may include an operation of providing a third driving voltage of the third MOSFET (323) and a fourth driving voltage of the fourth MOSFET (324) through the driving circuit (270). The at least one operation may include an operation of providing a control signal for requesting control of the input power provided from the power provider (299) through a programmable power supply (PPS) controller (280). A duty cycle of the third driving signal and a duty cycle of the fourth driving signal may be adjusted by the PWM circuit (260) based on a battery voltage and a battery current of the battery (240) and the basic signal provided from the oscillator (294). A magnitude of the third driving voltage and a magnitude of the fourth driving voltage may be adjusted by the driving circuit (270) based on the battery voltage and the battery current.

[0100] According to one embodiment, in the recording medium, the at least one operation may include an operation of outputting a voltage error signal by comparing the battery voltage with a target voltage through a voltage comparator (291). The at least one operation may include an operation of outputting a current error signal by comparing the battery current with a target current through a current comparator (292). The at least one operation may include an operation of outputting a minimum error signal having a smaller value between a value of the voltage error signal and a value of the current error signal through a minimum selector (293). The operation of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) may include an operation of providing the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the basic signal provided from the oscillator (294) and the minimum error signal output from the minimum selector (293) through the PWM circuit (260) configured to be electrically connected to the minimum selector (293).

[0101] According to one embodiment, in the recording medium, the basic signal provided from the oscillator (294) may include a sawtooth wave and a square wave. The operation of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) may include an operation of generating a pulse signal by comparing the sawtooth wave with the minimum error signal, and an operation of providing the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the pulse signal and the square wave.

[0102] According to one embodiment, in the recording medium, the operation of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) may include the operation of providing the first driving signal identical to the square wave to the first MOSFET (321), the operation of providing the second driving signal, which is an inversion of the square wave, to the second MOSFET (322), the operation of providing the third driving signal to the third MOSFET (323) based on the product of the pulse signal and the square wave, and the operation of providing the fourth driving signal to the fourth MOSFET (324) based on the product of the pulse signal and the inversion of the square wave.

[0103] In one embodiment, in the recording medium, based on the product of the pulse signal and the square wave, the third driving signal may be identical to the first driving signal when the minimum error signal is at a maximum, and a duty cycle of the third driving signal may decrease as the minimum error signal decreases. Based on the product of the pulse signal and the inversion of the square wave, the fourth driving signal may be identical to the second driving signal when the minimum error signal is at a maximum, and a duty cycle of the fourth driving signal may decrease as the minimum error signal decreases.

[0104] In one embodiment, in the recording medium, the voltage error signal may be proportional to the difference between the target voltage and the battery voltage. The voltage error signal may have an upper limit and a lower limit set. The current error signal may be proportional to the difference between the target current and the battery current. The current error signal may have an upper limit and a lower limit set.

[0105] According to one embodiment, in the recording medium, the first MOSFET (321) may be driven based on a first driving voltage. The second MOSFET (322) may be driven based on a second driving voltage. The third MOSFET (323) may be driven based on a third driving voltage. The fourth MOSFET (324) may be driven based on a fourth driving voltage. The at least one operation may include providing a third driving voltage to the third MOSFET (323) and providing a fourth driving voltage to the fourth MOSFET (324) through the driving circuit (270). The magnitude of the third driving voltage and the magnitude of the fourth driving voltage may be adjusted based on the battery voltage and the battery current by the driving circuit (270).

[0106] According to one embodiment, in the recording medium, the third driving voltage and the fourth driving voltage can be adjusted by the driving circuit (270) to be proportional to the minimum error signal.

[0107] According to one embodiment, in the recording medium, the at least one operation may include providing a first driving voltage of the first MOSFET (321) and providing a second driving voltage of the second MOSFET (322) based on the input power through the regulator (250).

[0108] According to one embodiment, in the recording medium, the at least one operation may include an operation of providing a control signal for requesting control of the input power provided from the power provider (299) through a programmable power supply (PPS) controller (280).

[0109] Devices according to various embodiments disclosed in this document may take various forms. 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. Devices according to embodiments of this document are not limited to the aforementioned devices.

[0110] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0111] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0112] Various embodiments of the present document may be implemented as software (e.g., a program) including one or more instructions stored on a storage medium that can be read by a machine (e.g., an electronic device). For example, a processor (e.g., a controller) of the machine may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0113] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0114] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (101), A direct charger (220) including a first MOSFET (metal-oxide-semiconductor field effect transistor) (321), a second MOSFET (322), a third MOSFET (323), and a fourth MOSFET (324), and configured to provide output power based on input power provided from an external power provider (299); A battery (240) configured to be charged based on the output power provided through the direct charger (220); A PWM (pulse-width modulation) circuit (260) configured to provide a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324); and An oscillator (294) configured to provide a basic signal to the above PWM circuit (260); The duty cycle of the third driving signal and the duty cycle of the fourth driving signal are adjusted by the PWM circuit (260) based on the battery voltage and battery current of the battery (240) and the basic signal provided from the oscillator (294). Electronic device (101).

2. In paragraph 1, A voltage comparator (291) configured to output a voltage error signal by comparing the battery voltage and the target voltage; A current comparator (292) configured to output a current error signal by comparing the battery current with the target current; and Further comprising a minimum selector (293) configured to output a minimum error signal having a smaller value among the values ​​of the voltage error signal and the current error signal, The above minimum selector (293) is configured to be electrically connected to the PWM circuit (260), The above PWM circuit (260) is Based on the basic signal provided from the oscillator (294) and the minimum error signal output from the minimum selector (293), the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal are configured to be provided. Electronic device (101).

3. In paragraph 1 or 2, The basic signal provided from the above oscillator (294) includes a sawtooth wave and a square wave, The above PWM circuit (260) is Generating a pulse signal by comparing the sawtooth wave and the minimum error signal, Based on the pulse signal and the square wave, configured to provide the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal, Electronic device (101).

4. In any one of paragraphs 1 to 3, The above PWM circuit (260) is Provide the first driving signal, which is identical to the square wave, to the first MOSFET (321), The second driving signal, which is an inversion of the square wave, is provided to the second MOSFET (322), Based on the product of the pulse signal and the square wave, the third driving signal is provided to the third MOSFET (323), Based on the product of the pulse signal and the inversion of the square wave, the fourth driving signal is configured to be provided to the fourth MOSFET (324). Electronic device (101).

5. In any one of paragraphs 1 to 4, Based on the product of the pulse signal and the square wave, the third driving signal is identical to the first driving signal when the minimum error signal is maximum, and the duty cycle of the third driving signal decreases as the minimum error signal decreases. Based on the product of the pulse signal and the inversion of the square wave, the fourth driving signal is equal to the second driving signal when the minimum error signal is maximum, and the duty cycle of the fourth driving signal decreases as the minimum error signal decreases. Electronic device (101).

6. In any one of paragraphs 1 to 5, The voltage comparator (291) is configured to output the voltage error signal proportional to the difference between the target voltage and the battery voltage, and the voltage error signal output from the voltage comparator (291) has an upper limit and a lower limit set. The current comparator (292) is configured to output the current error signal proportional to the difference between the target current and the battery current, and the current error signal output from the current comparator (292) has an upper limit and a lower limit set. Electronic device (101).

7. In any one of paragraphs 1 to 6, The first MOSFET (321) is driven based on a first driving voltage, the second MOSFET (322) is driven based on a second driving voltage, the third MOSFET (323) is driven based on a third driving voltage, and the fourth MOSFET (324) is driven based on a fourth driving voltage. The electronic device (101) further includes a driving circuit (270) configured to provide the third driving voltage of the third MOSFET (323) and the fourth driving voltage of the fourth MOSFET (324). The magnitude of the third driving voltage and the magnitude of the fourth driving voltage are adjusted based on the battery voltage and the battery current by the driving circuit (270). Electronic device (101).

8. In any one of paragraphs 1 to 7, The above minimum selector (293) is configured to be electrically connected to the driving circuit (270), The third driving voltage and the fourth driving voltage are adjusted to be proportional to the minimum error signal by the driving circuit (270). Electronic device (101).

9. In any one of paragraphs 1 to 8, Further comprising a regulator (250) configured to provide the first driving voltage of the first MOSFET (321) and the second driving voltage of the second MOSFET (322) based on the input power provided from the power provider (299). Electronic device (101).

10. In any one of paragraphs 1 to 9, Further comprising a first level shifter (331) between the PWM circuit (260) and the first MOSFET (321), a second level shifter (332) between the PWM circuit (260) and the second MOSFET (322), and a third level shifter (333) between the PWM circuit (260) and the third MOSFET (323). Electronic device (101).

11. In any one of paragraphs 1 to 10, It further includes an input MOSFET (210) electrically connected to the above direct charger (220), The above input MOSFET (210) is configured to prevent the leakage of power from the direct charger (220) toward the power provider (299). Electronic device (101).

12. In any one of paragraphs 1 to 11, Further comprising a PPS (programmable power supply) controller (280) configured to provide a control signal for requesting control of the input power provided from the power provider (299). Electronic device (101).

13. In the operating method of an electronic device (101), An operation of providing output power based on input power provided from an external power provider (299) through a direct charger (220) including a first MOSFET (metal-oxide-semiconductor field effect transistor) (321), a second MOSFET (322), a third MOSFET (323), and a fourth MOSFET (324), An operation of charging a battery (240) based on the output power provided through the direct charger (220), An operation of providing a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324) through a PWM (pulse-width modulation) circuit (260), An operation of providing a basic signal to the PWM circuit (260) through an oscillator (294), The duty cycle of the third driving signal and the duty cycle of the fourth driving signal are adjusted by the PWM circuit (260) based on the battery voltage and battery current of the battery (240) and the basic signal provided from the oscillator (294). method.

14. In paragraph 13, An operation of outputting a voltage error signal by comparing the battery voltage and the target voltage through a voltage comparator (291), An operation of outputting a current error signal by comparing the battery current and the target current through a current comparator (292), An operation of outputting a minimum error signal having a smaller value among the values ​​of the voltage error signal and the current error signal through a minimum selector (293), The operation of providing the first driving signal of the first MOSFET (321), providing the second driving signal of the second MOSFET (322), providing the third driving signal of the third MOSFET (323), and providing the fourth driving signal of the fourth MOSFET (324) is An operation of providing the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal based on the basic signal provided from the oscillator (294) and the minimum error signal output from the minimum selector (293) through the PWM circuit (260) configured to be electrically connected to the minimum selector (293). method.

15. In a non-transitory computer-readable recording medium storing instructions, the instructions, when individually or collectively executed by at least one processor of an electronic device (101), cause the electronic device (101) to perform at least one operation, At least one of the above actions: An operation of providing output power based on input power provided from an external power provider (299) through a direct charger (220) including a first MOSFET (metal-oxide-semiconductor field effect transistor) (321), a second MOSFET (322), a third MOSFET (323), and a fourth MOSFET (324), An operation of charging a battery (240) based on the output power provided through the direct charger (220), An operation of providing a first driving signal of the first MOSFET (321), a second driving signal of the second MOSFET (322), a third driving signal of the third MOSFET (323), and a fourth driving signal of the fourth MOSFET (324) through a PWM (pulse-width modulation) circuit (260), An operation of providing a basic signal to the PWM circuit (260) through an oscillator (294), The duty cycle of the third driving signal and the duty cycle of the fourth driving signal are adjusted by the PWM circuit (260) based on the battery voltage and battery current of the battery (240) and the basic signal provided from the oscillator (294). Recording medium.

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