KR20240085495A - Power control circuit, electronic device including the power control circuit and method of operating the same - Google Patents

Abstract

The power control circuit 220 according to an embodiment includes an antenna 222, a controller 240, a power supply unit 245 that supplies power to the controller, and a switch circuit 227 that electrically connects the controller and the power supply unit. and a signal generator configured to output a pulse signal to the switch circuit based on a signal received from the outside through the antenna. According to one embodiment, if the electrical connection between the controller and the power supply unit is cut off while the pulse signal is output to the switch circuit, the controller may be turned off. According to one embodiment, the controller is turned on when the power supply unit and the controller are electrically reconnected as a low-level signal is output to the switch circuit after the pulse signal is output from the signal generator. It can be set to output a trigger signal so that power is supplied to the device 101.

Description

Power control circuit, electronic device including the power control circuit, and method of operating the same {POWER CONTROL CIRCUIT, ELECTRONIC DEVICE INCLUDING THE POWER CONTROL CIRCUIT AND METHOD OF OPERATING THE SAME}

The present invention relates to a power control circuit, an electronic device including the power control circuit, and a method of operating the same.

Electronic devices (e.g. home appliance electronic devices) receive power from a power source to perform designated functions (e.g. screen display function, refrigeration function, heating function, washing function, cleaning function, air purifying function, communication function, control function, output). functions, etc.) can be performed. The electronic device may be operated in a driving state to perform the specific function and a sleep state or standby state in which it consumes a certain amount of standby power while not performing the specific function. Additionally, an electronic device may not consume power in an off state.

An electronic device can perform a specific function when it receives a control signal from an external electronic device (e.g., remote controller, mobile device, etc.) that can control the electronic device. Until a control signal is received from an external electronic device, the electronic device may continue to perform a previously performed function or may be operated in a sleep state or standby state waiting for the control signal to be received.

Each component included in an electronic device may consume a certain level of power in a sleep state or standby state. However, power consumed in a sleep state or standby state may result in unnecessary waste of power. Additionally, electronic devices may require a lot of effort to comply with regulations regarding power consumption in sleep or standby states. Accordingly, various methods are being studied to reduce power consumed in the sleep or standby state of electronic devices.

The power control circuit 220 according to an embodiment includes an antenna 222, a controller 240, a power supply unit 245 that supplies power to the controller, a switch 227 that electrically connects the controller and the power supply unit, and It may include a signal generator set to output a pulse signal based on a signal received from the outside through the antenna. According to one embodiment, if the electrical connection between the controller and the power supply unit is cut off while the first signal corresponding to the pulse signal is provided to the switch, the controller may be turned off. According to one embodiment, when the power unit and the controller are electrically reconnected after the first signal is provided to the switch, the controller turns on and outputs a trigger signal to supply power to the electronic device 101. It can be set to do so.

The electronic device 201 according to one embodiment includes a functional unit 210, an external power source 205 and a first switch 207 disposed between the functional unit, an auxiliary power control circuit 250, and a power control circuit. It may include (220). According to one embodiment, the power control circuit includes a power supply unit 245, an antenna 222, a signal generator 225, a controller 240, and a second switch 227 that electrically connects the power supply unit 245 and the controller. ) may include. According to one embodiment, when the first switch is open, the signal generator may be set to output a pulse signal based on a signal received from an external electronic device through the antenna. According to one embodiment, if the power supply unit and the controller are electrically cut off while the first signal corresponding to the pulse signal is provided to the second switch, the controller may be turned off. According to one embodiment, when the power unit and the controller are electrically reconnected after the first signal is provided to the second switch, the controller is turned on and set to output a trigger signal to the auxiliary power control circuit 250. You can. According to one embodiment, the auxiliary power control circuit may be set to short-circuit the first switch based on the trigger signal. According to one embodiment, power may be provided to the functional unit from the external power source based on the first switch being short-circuited.

In a method of operating an electronic device 201 including a power control circuit 220 according to an embodiment, the power control circuit includes a power supply unit 245, a signal generator 225, a controller 240, and a power supply unit ( 245) and a second switch 227 that electrically connects the controller. According to one embodiment, the method of operating the electronic device includes receiving information from the external electronic device through the signal generator in a state in which the first switch 207 disposed between the external power source 205 and the electronic device is open. It may include an operation of outputting a pulse signal based on the signal. According to one embodiment, if the power supply unit and the controller are electrically cut off while the first signal corresponding to the pulse signal is provided to the second switch, the controller may be turned off. According to one embodiment, a method of operating the electronic device may include, when the power unit and the controller are electrically reconnected after the first signal is provided to the second switch, the auxiliary power of the electronic device is turned on through the turned-on controller. An operation of outputting a trigger signal to the control circuit 250 may be included. According to one embodiment, the method of operating the electronic device may include short-circuiting the first switch based on the trigger signal through the auxiliary power control circuit. According to one embodiment, a method of operating the electronic device may include receiving power from the external power source based on the first switch being short-circuited.

FIG. 1A is a diagram illustrating power consumed by an electronic device in an off state and an on state, according to an embodiment.
1B is a block diagram of an electronic system, according to one embodiment.
FIG. 2A is a block diagram showing a schematic configuration of an electronic device according to an embodiment.
FIG. 2B is a block diagram illustrating an operation of activating components of an electronic device using a power control circuit according to an embodiment.
FIG. 2C is a block diagram showing the configuration of an electronic device including a power control circuit according to an embodiment.
Figure 3 is a block diagram showing the schematic configuration of a power control circuit according to an embodiment.
FIG. 4A is a diagram of a power control circuit according to one embodiment.
Figure 4b is a circuit diagram of a power control circuit according to one embodiment.
FIG. 5A is a flow chart for explaining the operation of a power control circuit according to an embodiment.
FIG. 5B is a flow chart for explaining the operation of an electronic device including a power control circuit according to an embodiment.
FIG. 6 is a diagram for explaining the state of a controller of a power control circuit according to an embodiment.
FIG. 7 is a diagram for explaining the operation of a power control circuit and the state of a controller according to an embodiment.
FIG. 8 is a graph showing current consumption of a power control circuit according to an embodiment.

Hereinafter, various embodiments of this document are described with reference to the attached drawings. The examples and terms used herein are not intended to limit the technology described in this document to a specific embodiment, and should be understood to include various changes, equivalents, and/or substitutes for the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar components. Singular expressions may include plural expressions, unless the context clearly indicates otherwise. In this document, expressions such as “A or B” or “at least one of A and/or B” may include all possible combinations of the items listed together. Expressions such as “first,” “second,” “first,” or “second,” can modify the corresponding components regardless of order or importance and are used to distinguish one component from another. It is only used and does not limit the corresponding components. When a component (e.g., a first) component is said to be "connected (functionally or communicatively)" or "connected" to another (e.g., second) component, it means that the component is connected to the other component. It may be connected directly to a component or may be connected through another component (e.g., a third component).

In this document, “configured to” means “suitable for,” “having the ability to,” or “changed to,” depending on the situation, for example, in terms of hardware or software. ," can be used interchangeably with "made to," "capable of," or "designed to." In some contexts, the expression “a device configured to” may mean that the device is “capable of” working with other devices or components. For example, the phrase "processor configured (or set) to perform A, B, and C" refers to a processor dedicated to performing the operations (e.g., an embedded processor), or by executing one or more software programs stored on a memory device. , may refer to a general-purpose processor (e.g., CPU or application processor) capable of performing the corresponding operations.

Electronic devices according to various embodiments of this document include, for example, smartphones, tablet PCs, mobile phones, video phones, e-book readers, desktop PCs, laptop PCs, netbook computers, workstations, servers, PDAs, PMPs ( It may include at least one of a portable multimedia player, MP3 player, medical device, camera, or wearable device. Wearable devices can be accessories (e.g. watches, rings, bracelets, anklets, necklaces, glasses, contact lenses, or head-mounted-devices (HMDs)), fabric or clothing-integrated (e.g. e-clothing), In some embodiments, the electronic device may include at least one of body attached (e.g., skin pad or tattoo) or bioimplantable circuitry, for example, a television, a digital video disk (DVD) player, or an audio device. , refrigerator, air conditioner, vacuum cleaner, oven, microwave oven, washing machine, air purifier, set-top box, home automation control panel, security control panel, media box (e.g. Samsung HomeSyncTM, Apple TVTM, or Google TVTM), game console ( It may include at least one of (e.g. XboxTM, PlayStationTM), electronic dictionary, electronic key, camcorder, or electronic photo frame.

In another embodiment, the electronic device may include various medical devices (e.g., various portable medical measurement devices (blood sugar monitor, heart rate monitor, blood pressure monitor, or body temperature monitor, etc.), magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), CT (computed tomography), imaging device, or ultrasonic device, etc.), navigation device, satellite navigation system (GNSS (global navigation satellite system)), EDR (event data recorder), FDR (flight data recorder), automobile infotainment device, marine electronic equipment (e.g. navigation devices for ships, gyrocompass, etc.), avionics, security devices, head units for vehicles, industrial or home robots, drones, ATMs at financial institutions, point-of-sale (POS) at stores. of sales), or IoT devices (e.g., light bulbs, various sensors, sprinkler devices, fire alarms, thermostats, street lights, toasters, exercise equipment, hot water tanks, heaters, boilers, etc.). According to some embodiments, the electronic device may be a piece of furniture, a building/structure, or a vehicle, an electronic board, an electronic signature receiving device, a projector, or various measuring devices (e.g., water, electric, It may include at least one of gas, radio wave measuring equipment, etc.). In various embodiments, the electronic device may be flexible or may be a combination of two or more of the various devices described above. Electronic devices according to embodiments of this document are not limited to the above-described devices. In this document, the term user may refer to a person using an electronic device or a device (e.g., an artificial intelligence electronic device) using an electronic device.

FIG. 1A is a diagram illustrating power consumed by an electronic device in an off state and an on state, according to an embodiment.

Referring to FIG. 1A, according to one embodiment, the electronic device 101 receives wall power (e.g., grid power) and performs a specific function (e.g., screen display function, refrigeration function, heating function, washing function, cleaning function). , air cleaning function, communication function, control function, output function, etc.) may be implemented as an electronic device (e.g., an electronic device for home appliances). Although the electronic device 101 is shown as a TV in FIG. 1 for convenience of explanation, the technical idea of the present invention may not be limited thereto.

According to one embodiment, the electronic device 101 may be in either an on state for performing a specific function or an off state for not performing the specific function. For example, the electronic device 101 may receive power from an external source in an on state. When the electronic device 101 is in an off state, power supply from the outside may be cut off. However, in the off state. The electronic device 101 may consume a certain amount of standby power (A). At this time, the standby power (A) may be less than the power (B) consumed when the electronic device 101 is turned on.

According to one embodiment, the electronic device 101 may change from the off state to the on state at the first time t1. For example, the electronic device 101 may receive a signal from an external electronic device in the off state and switch to the on state in response to the received signal. The electronic device 101 may receive a signal transmitted from an external electronic device in an off state or drive some circuits of the electronic device 10 to turn on in response to the signal. That is, the electronic device 101 may consume standby power (B) in the off state to drive some circuits. As the electronic device 101 is in an off state for longer, the amount of power consumed as standby power (B) may increase. Accordingly, there is a need to reduce power consumed when the electronic device 101 is in an off state.

1B is a block diagram of an electronic system, according to one embodiment.

Referring to FIG. 1B , according to one embodiment, the electronic system may include an electronic device 101, a first external device 103, and/or a second external device 105.

According to one embodiment, the electronic device 101 receives a control signal (e.g., signal 131 or A signal 151) can be received. For example, the electronic device 101 may receive a control signal directly from the first external device 103 or may receive a control signal through the second external device 105 (eg, a signal repeater). When receiving a control signal, the electronic device 101 can receive power from an external source or block the power supply. For example, when power is supplied from the outside, the electronic device 101 may be operated in a driving state. Alternatively, when power is not supplied from the outside, the electronic device 101 may be in an off state (or sleep state, standby state).

According to one embodiment, when receiving a control signal, the electronic device 101 may perform a specific function provided by the electronic device 101. At this time, until receiving a control signal from the first external device 103, the electronic device 101 continues to perform the previously performed function or is in an off state (or sleep state, standby state) waiting for reception of the control signal. ) can be operated.

According to one embodiment, each component included in the electronic device 101 may consume a certain level of power in an off state. The electronic device 101 can minimize power consumed in an off state (or sleep state, standby state) using a power control circuit included in the electronic device 101.

According to one embodiment, the electronic device 101 may receive the signal 131 directly from the first external device 103. For example, the signal 131 may be a signal using wireless communication technology. The signal 131 transmitted from the first external device 103 is a signal 131 transmitted from the first external device 103 to the electronic device 101 when the first external device 103 is operated by the user. It can be. Alternatively, the first external device 103 may transmit the signal 131 to the electronic device 101 regardless of the user's operation. As the electronic device 101 receives the signal 131, it can perform a function corresponding to the signal 131. At this time, the signal 131 may include a command for the electronic device 101 to perform a specific function. The type of signal 131 transmitted from the first external device 103 to the electronic device 101 may not be limited. Additionally, the functions performed by the electronic device 101 based on reception of the signal 131 may not be limited in type.

According to one embodiment, when a signal 131 related to the on/off function is received from the first external device 103, the electronic device 101 detects at least one component or element included in the electronic device 101. can be switched to an activated or deactivated state. For example, the activation state may mean an on state (eg, operating state) of the electronic device 101 or at least one element included in the electronic device 101. The on state may be a state in which power is provided to the electronic device 101 or at least one element included in the electronic device 101. The operating state may be a state in which the electronic device 101 performs a specific function. The activated state may include a state that is on but not in an operating state. Additionally, the activated state may include a state that is in an operating state in an on state. For example, when the electronic device 101 switches from a deactivated state to an activated state, it can perform a specific function supported by the electronic device 101. For example, the deactivated state may include an off state, a sleep state, or a standby state of the electronic device 101 or at least one element included in the electronic device 101. When the electronic device 101 switches from an activated state to a deactivated state, it may stop performing a specific function supported by the electronic device 101. For example, the off state may be a state in which the electronic device 101 or at least one element included in the electronic device 101 does not receive power. The sleep state may be a state in which the electronic device 101 or at least one element included in the electronic device 101 is driven in a low power state. The standby state may be a state in which the electronic device 101 or at least one element included in the electronic device 101 consumes standby power. For example, standby power is consumed when the electronic device 101 or at least one element included in the electronic device 101 is not performing a specific function, but is waiting to perform a specific function supported by the electronic device 101. It could be power.

According to one embodiment, the electronic device 101 may receive the second signal 151 from the second external device 105. The second external device 105 may receive the first signal 135 from the first external device 103. Additionally, the second external device 105 may transmit a second signal 151 to the electronic device 101 based on the first signal 135 received from the first external device 103. For example, each of the first signal 135 and the second signal 151 may be a signal using the same or different wireless communication technology. At this time, the first signal 135 has the same command as the second signal 151. may include. For example, the command may be a command requesting the electronic device 101 to perform a specific function. For example, the second external device 105 may be implemented as a relay device that relays signals between the first external device 103 and the electronic device 101. As the electronic device 101 receives the second signal 151, it can perform a function corresponding to the second signal 151. The type of the second signal 151 transmitted from the second external device 105 to the electronic device 101 may not be limited. Additionally, the functions performed by the electronic device 101 based on reception of the second signal 151 may not be limited in type.

According to one embodiment, when the second signal 151 related to the on/off function is received from the first external device 103, the electronic device 101 selects at least one element included in the electronic device 101. It can be switched to an activated or deactivated state. According to one embodiment, the first external device 103 may be implemented as a remote controller or a mobile device. The second external device 105 may be a wireless access point, a beacon, or a smart remote control hub. The electronic device 101 may be a TV, a washing machine, a dryer, a laptop, a refrigerator, a speaker, a clothing care device, an air conditioner, an air purifier, a robot vacuum cleaner, a dishwasher, an electric rice cooker, a microwave oven, a blender, or a multi-outlet. However, those skilled in the art will understand that the types of the electronic device 101, the first external device 103, and the second external device 105 described above are merely examples and are not limited thereto.

FIG. 2A is a block diagram showing a schematic configuration of an electronic device according to an embodiment.

Referring to FIG. 2A , the electronic device 201 according to one embodiment may include a functional unit 210, a power control circuit 220, a power switch 207, and an auxiliary power control circuit 250.

According to one embodiment, the electronic device 201 may be implemented identically or similarly to the electronic device 101 of FIG. 1 .

According to one embodiment, the electronic device 201 may receive power from an external power source 205. The electronic device 201 may perform a specific function based on the power supplied. For example, the electronic device 201 may be implemented as a home appliance electronic device or electronic device. For example, the electronic device 201 may be implemented as a TV, air conditioner, heater, refrigerator, washing machine, air purifier, dishwasher, dryer, or vacuum cleaner. For example, the external power source 205 may include a wall power source (eg, grid power source) or a grid power grid. However, there may be no limitation on the type of the external power source 205.

According to one embodiment, the power switch 207 may be placed between the external power source 205 and the functional unit 210. An AC/DC converter 206 may be further included between the external power source 205 and the power switch 207. The AC/DC converter 206 can convert alternating current power supplied from the external power source 205 into direct current power.

According to one embodiment, the functional unit 210 may include a power filter 211, a power circuit 212, and a function circuit 215. The electronic device 101 may use the function unit 210 to perform a specific function supported by the electronic device 201 . For example, the specific function is a unique function of the electronic device 201, and there is no limit to the type of the specific function. For example, the specific function may be a screen display function, a refrigeration function, a cooling function, a heating function, a washing function, a communication function, a control function, a cleaning function, a washing function, a drying function, or an output function.

According to one embodiment, the power filter 211 may filter power supplied from the external power source 205. The power filter 211 may provide filtered power to the power circuit 212.

According to one embodiment, the power circuit 212 may supply filtered power to the function circuit 215. For example, the power circuit 212 may be implemented as a power management circuit (power management IC).

According to one embodiment, the function circuit 215 may perform a specific function of the electronic device 201 based on power supplied from the power circuit 212. For example, depending on implementation, the functional circuit 215 may include a driver (eg, display panel, motor, output device) to perform a specific function of the electronic device 201. For example, the function circuit 215 may perform a TV function, an air conditioner function, a heater function, a refrigerator function, a washing machine function, an air purifier function, a dishwasher function, a dryer function, or a vacuum cleaner function.

According to one embodiment, the power control circuit 220 may receive a signal from an external electronic device (eg, 271, 272, or 273). For example, the external electronic device may be implemented identically or similarly to the first external device 103 and/or the second external device 105 of FIG. 1 . For example, the external electronic device 271, 272, or 273 may be a smartphone 271 using Wi-Fi communication or cellular communication (e.g., LTE communication, 5G communication), or BLE using bluetooth low energy (BLE) communication. It may include a remote control 272 or an IR remote control 273 using IR (infrared ray) communication. For example, a signal from the external electronic device 271, 272, or 273 is transmitted directly to the electronic device 201 or is transmitted to the electronic device 201 through a relay device (e.g., the second external device 105 in FIG. 1). can be transmitted. For example, a signal from the external electronic device 271, 272, or 273 may include a signal for controlling the electronic device 201. For example, a signal from the external electronic device 271, 272, or 273 may be implemented as a Wi-Fi signal, a cellular communication signal (eg, an LTE communication signal, a 5G communication signal), a BLE signal, or an IR signal.

According to one embodiment, the power control circuit 220 may output a trigger signal to the auxiliary power control circuit 250 based on a signal received from the external electronic device 271, 272, or 273. For example, the trigger signal may refer to a signal that activates the auxiliary power control circuit 250. The power control circuit 220 may change the state (or driving state) of the controller of the power control circuit 220 based on a signal received from the external electronic device 271, 272, or 273. Additionally, the power control circuit 220 may output a trigger signal to the auxiliary power control circuit 220 based on a change in the state of the controller. For example, the power control circuit 220 may output a trigger signal while minimizing power consumption. For example, the power control circuit 220 may change the state of a controller included in the power control circuit 220 to minimize power consumption.

According to one embodiment, the auxiliary power control circuit 250 may short-circuit the power switch 207 so that power is supplied to the functional unit 210 from the external power source 205 based on the trigger signal. The auxiliary power control circuit 250 may be activated when a trigger signal is received. The auxiliary power control circuit 250, after being activated, may short-circuit the power switch 207. Thereafter, the auxiliary power control circuit 250 uses a communication module (not shown) to enable the electronic device 201 to receive a control signal for controlling the electronic device 201 from the external electronic device 271, 272, or 273. ) can be activated. For example, the communication module may be included in the auxiliary power control circuit 250 or may be included in the functional unit 210. Alternatively, the communication module may be separately included in the electronic device 201. For example, the communication module may perform an infrared (IR) communication function, a wireless fidelity (Wi-Fi) communication function, a bluetooth low energy (BLE) communication function, and/or a cellular communication function. For example, the activation state is The inactive state may include an on state, an off state, a sleep state, or a standby state.

Existing electronic devices may include only the auxiliary power control circuit 250 without the power control circuit 220. Accordingly, the existing electronic device could be operated with the functional unit 210 in a deactivated state and the auxiliary power control circuit 250 in an activated state or a standby state. Existing electronic devices may consume a lot of power unnecessarily as the auxiliary power control circuit 250 operates in an activated or standby state.

The electronic device 201 according to an embodiment uses the power control circuit 220 to maintain the auxiliary power control circuit 250 in an off state, while maintaining the power supply control circuit 250 in an off state. Signals or control signals can be monitored. In addition, when a signal or control signal is received from the external electronic device 271, 272, or 273, the power control circuit 220 determines the driving state of the controller included in the power control circuit 220 to minimize power consumption. can be changed. Through this, the electronic device 201 according to one embodiment can minimize power consumption (or standby power consumption) in a standby state until a control signal is received from the external electronic device 271, 272, or 273. .

According to one embodiment, the power control circuit 220, the auxiliary power circuit 250, and the power switch 207 may be implemented as one component (eg, a power management circuit). However, in FIG. 2A, the corresponding components are described as separate components for convenience of explanation, but the technical idea of the present invention may not be limited thereto.

FIG. 2B is a block diagram illustrating an operation of activating components of an electronic device using a power control circuit according to an embodiment.

Referring to FIG. 2B, according to one embodiment, the electronic device 201 may drive the power control circuit 220 in a standby state or sleep state in an off state. At this time, the electronic device 201 may maintain the function unit 210 and the auxiliary power control circuit 250 in an off state.

According to one embodiment, the electronic device 201 may be in an off state. For example, the power switch 207 may be in an open state. The auxiliary power control circuit 250 and the functional unit 210 may be in an inactive state (eg, off state). For example, elements included in the auxiliary power control circuit 250 (e.g., DC/DC converter 252, control circuit 254, and communication module 256) may also be in a deactivated state (e.g., off state). .

According to one embodiment, the power control circuit 220 may be in a standby state or a sleep state. At this time, the power control circuit 220 may receive a signal from the external electronic device 272. For example, when the external electronic device 272 is a BLE remote control, the power control circuit 220 can receive a BLE signal. At this time, the BLE signal may include a wake up (WAKE UP) command.

According to one embodiment, the BLE remote control 272 may output a BLE signal. For example, the BLE remote control 272 may output a BLE signal based on the user's input. For example, the BLE signal may include a wake-up signal (WAKE-UP). Depending on the implementation, BLE signals may include data signals.

According to one embodiment, the power control circuit 220 may output a trigger signal to the auxiliary power control circuit 250 based on the BLE signal being received. For example, the power control circuit 220 may output a trigger signal to the DC/DC converter 252 included in the auxiliary power control circuit 250.

According to one embodiment, the DC/DC converter 252 may be changed to the activated state (or on state) based on a trigger signal. DC/DC converter 252 may activate control circuit 254 and communication module 256. After being activated, the communication module 256 can receive BLE signals including data signals. Control circuit 254, after being activated, may short-circuit power switch 207. The control circuit 254 may transmit the data signal received through the communication module 256 to the functional unit 210. For example, the communication module 256 may include an IR communication module, a BLE communication module, a Wi-Fi communication module, and/or a cellular communication module.

According to one embodiment, the functional unit 210 may receive power from the external power source 205 when the power switch 207 is shorted. The functional unit 210 may be activated based on power provided from the external power source 205. Thereafter, the function unit 210 may perform a specific function supported by the electronic device 101 based on the control signal output from the BLE remote controller 272.

According to one embodiment, the electronic device 201 may reduce standby power consumption through the power control circuit 220. For example, the electronic device 201 may drive the power control circuit 220 by consuming minimal power. Additionally, because the electronic device 201 uses the power control circuit 220, the auxiliary power control circuit 220 can be maintained in an off state even when the electronic device 201 is in a standby state. Through this, the electronic device 201 can minimize power consumption when the electronic device 201 is in a standby state.

Meanwhile, for convenience of explanation, Figure 2b illustrates an embodiment in which the power control circuit 220 is activated based on the BLE signal output from the BLE remote controller 272, but the technical idea of the present invention is not limited thereto. You can. For example, the power control circuit 220 may be activated based on signals output from various external electronic devices (eg, 271 or 273).

FIG. 2C is a block diagram for explaining the operation of an electronic device using a power control circuit according to an embodiment.

Referring to FIG. 2C, according to one embodiment, the power control circuit 220 may include a signal detector 221 and a power supply unit 245.

According to one embodiment, the signal detector 221 may receive a signal output from an external electronic device (eg, BLE remote control 272). The signal detector 221 may output a trigger signal to the auxiliary power control circuit 250 based on the detected signal.

According to one embodiment, the power supply unit 245 may supply power to the signal detector 221. For example, the power supply unit 245 may supply power to the signal detector 221 even when the electronic device 201 is in an inactive state (eg, off state). For example, the power supply unit 245 may include a battery 241, a harvester 242, and a power conversion circuit 243. For example, battery 241 may supply stored power to a signal detector. The harvester 242 can collect energy. The harvester 242 may collect energy based on sunlight, vibration, heat, hydraulic power, or signals (e.g., IR signals, Wi-Fi signals, BLE signals, etc.). There are no limitations to the way the harvester 242 captures energy. The energy collected by the harvester 242 may be converted into power through the power conversion circuit 243 and supplied to the signal detector 221.

According to one embodiment, the power control circuit 220 may perform a wake-up operation based on a signal received from the BLE remote controller 272. The power control circuit 220 may output a trigger signal to the DC/DC converter 252 of the auxiliary power control circuit 250 after the wake-up operation is completed. The power control circuit 220 may change back to the sleep state after outputting the trigger signal.

Figure 3 is a block diagram showing the schematic configuration of a power control circuit according to an embodiment.

Referring to FIG. 3, according to one embodiment, the power control circuit 220 includes an antenna 222, a frequency converter 223, a signal generator 225, a switch circuit 227, a controller 240, and a power supply unit. It may include (245).

According to one embodiment, the antenna 222 may receive a signal received from an external electronic device (eg, 271, 272, or 273). For example, the antenna 222 can receive a BLE signal from the BLE remote controller 272. The frequency converter 223 may convert the frequency of a signal (eg, BLE signal) received through the antenna 222. The frequency converter 223 may output the converted signal to the signal generator 225.

According to one embodiment, the signal generator 225 may output a pulse signal to the switch circuit 227 based on the converted signal. For example, the signal generator 225 may output a pulse signal having a high level in a certain section based on the converted signal. For example, the pulse signal may be implemented as an impulse signal (or a signal of an impulse waveform).

According to one embodiment, the switch circuit 227 may electrically connect or disconnect the controller 240 and the power supply unit 245. For example, the switch circuit 227 may block or release the electrical connection between the controller 240 and the power supply unit 245 based on a pulse signal or a first signal corresponding to the pulse signal. For example, the first signal may include a low level section. For example, the first signal may be an inverted impulse signal.

According to one embodiment, the controller 240 may output a trigger signal (or triggering signal) to the auxiliary power control circuit 250 based on the power supplied from the power supply unit 245. For example, the controller 240 may be implemented as a micro controller unit (MCU). The controller 240 may change to the off state when the electrical connection between the controller 240 and the power supply unit 245 is blocked or released by the switch circuit 227. Thereafter, when the electrical connection between the controller 240 and the power supply unit 245 is reconnected (or restored) by the switch circuit 227, the controller 240 can change the off state to the standby state. In addition, after outputting the trigger signal to the auxiliary power circuit 250, the controller 240 changes to the sleep state even if the electrical connection between the controller 240 and the power supply unit 245 is maintained by the switch circuit 227. You can.

According to one embodiment, the power supply unit 245 may supply power to the controller 240. For example, the power supply unit 245 may include a battery (not shown). The power supply unit 245 may provide power stored in the battery to the controller 240. According to one embodiment, the power unit 245 may include an energy harvester module. For example, the power supply unit 245 may obtain energy from sunlight and/or solar heat and store the obtained energy in a battery. When the controller 240 is turned on, the power supply unit 245 may provide power stored in the battery to the controller 240. Additionally, the power unit 245 may provide power (e.g., standby power) to the controller 240 to maintain the state even if the controller 240 is in a sleep state or a standby state.

FIG. 4A is a diagram of a power control circuit according to one embodiment.

Referring to FIG. 4A, the switch circuit 227 may include a signal converter 229 and a switch 230.

According to one embodiment, the signal generator 225 may output a pulse signal to the signal converter 229 based on the converted signal. For example, the signal generator 225 may output a pulse signal having a high level in a certain section based on the converted signal.

According to one embodiment, the signal converter 229 may output the first signal to the switch 230 based on the pulse signal. For example, the first signal may be a signal in which the phase of a pulse signal is converted to the opposite side. For example, when the pulse signal includes a high level signal in a certain section, the first signal may include a low level signal in the certain section.

According to one embodiment, the switch 230 may block or release the electrical connection between the controller 240 and the power supply unit 245 based on the first signal. For example, the switch 230 may block or release the electrical connection between the controller 240 and the power supply unit 245 while the low level first signal is provided. For example, the switch 230 may be opened while a low level first signal is provided. Additionally, the switch 230 may be short-circuited after the low-level first signal is provided.

According to one embodiment, the controller 240 cannot receive power from the power supply unit 245 if the electrical connection between the controller 240 and the power supply unit 245 is blocked or released by the switch 230. At this time, the controller 240 may be turned off. Additionally, the controller 240 may be in an off state. Thereafter, the controller 240 can receive power from the power supply unit 245 when the electrical connection between the controller 240 and the power supply unit 245 is reconnected by the switch circuit 227. At this time, the controller 240 may be turned on and perform a wake-up operation. Additionally, the controller 240 may change from the off state to the standby state. When the wake-up operation is completed, the controller 240 may output a trigger signal to the auxiliary power control circuit 250.

Figure 4b is a circuit diagram of a power control circuit according to one embodiment.

Referring to FIG. 4B, the switch circuit 227 may include an inverter 229-1 and an N-type MOSFET 230-1. For example, the signal converter 229 in FIG. 4A may be implemented as an inverter 229-1. Additionally, the switch 230 of FIG. 4A may be implemented as an N-type MOSFET 230-1. Additionally, the switch circuit 227 may further include a capacitor 233 and a resistor 234. For example, the capacitor 233 may be connected between the signal generator 231 and the controller. The resistor 234 may be connected to one end of the N-type MOSFET 234. One end of the N-type MOSFET 230 may be connected to the resistor 234, and the other end may be connected to the ground 236.

According to one embodiment, the signal generator 225 may output the pulse signal 231 to the inverter 229-1 based on the converted signal.

According to one embodiment, the inverter 229-1 may output the first signal 232 to the N-type MOSFET 230-1 based on the pulse signal 231. For example, the inverter 229-1 may output the first signal 232 in which the phase of the pulse signal is converted to the opposite side. For example, when the pulse signal 231 includes a high level signal in a certain section, the first signal 232 may include a low level signal in the certain section.

According to one embodiment, the N-type MOSFET 230-1 may electrically connect the controller 240 to the ground 236 while the first signal 232 indicating a low level is provided. Because of this, the electrical connection between the controller 240 and the power supply unit 245 may be blocked or released. At this time, the controller 240 may not receive power from the power supply unit 245. Additionally, the controller 240 may be turned off momentarily. At this time, the controller 240 may be in an off state.

According to one embodiment, the N-type MOSFET 230-1 may disconnect the electrical connection between the controller 240 and the ground 236 after the first signal 232 indicating a low level is provided. Because of this, the controller 240 can be electrically reconnected (or the electrical connection restored) with the power supply unit 245. At this time, the controller 240 may receive power from the power supply unit 245 and be turned on.

According to one embodiment, the controller 240 may transmit or output a trigger signal to the auxiliary power control circuit 250 based on the power provided from the power supply unit 245.

FIG. 5A is a flow chart for explaining the operation of a power control circuit according to an embodiment.

Referring to FIG. 5A , according to one embodiment, in operation 501, the power control circuit 220 may drive the controller 240 in a sleep state. For example, when the power is turned on, the power control circuit 220 can drive the controller 240 in a sleep state driven at low power.

According to one embodiment, the signal generator 225 included in the power control circuit 220 switches a pulse signal based on a signal received from the outside (e.g., external electronic device 272) through the antenna 222. It can be output to the circuit 227. For example, the pulse signal may include a signal indicating a high level. For example, a pulse signal may be implemented as an impulse signal. Alternatively, the pulse signal may be generated based on a user input to a physical button (eg, power button) of the electronic device 201.

According to one embodiment, in operation 503, if the electrical connection between the controller 240 and the power supply unit 245 is interrupted while the pulse signal is output to the switch circuit 227, the controller 240 may be turned off. there is. For example, a first signal corresponding to a pulse signal may be generated by the signal converter 229 included in the switch circuit 227. If the electrical connection between the controller 240 and the power supply unit 245 is cut off while the first signal is provided to the switch 230 included in the switch circuit 227, the controller may be turned off. For example, the first signal may be a pulse signal inverted (or upside down). The first signal may be applied or provided to the switch 230 that electrically connects the controller 240 and the power supply unit 245. At this time, the switch 230 may block the electrical connection between the controller 240 and the power supply unit 245 as the first signal is applied. Because of this, the controller 240 may not receive power.

According to one embodiment, in operation 505, when the power unit 245 and the controller 240 are electrically reconnected, the controller 240 may be turned on. For example, the signal generator 225 may output a high-level pulse signal and then output a low-level signal to the switch circuit 227. The signal converter 229 may apply or provide a high-level second signal obtained by inverting the low-level signal output from the signal generator 225 to the switch 230 . The switch 230 may restore the electrical connection between the controller 240 and the power supply unit 245 as the second signal is applied. The controller 240 may perform a wake-up operation as the electrical connection with the power supply unit 245 is restored (or reconnected). For example, a wake-up operation may be performed in the standby state of the controller 240. According to one embodiment, in operation 507, the controller 240 may output a trigger signal to the auxiliary power circuit 250. The auxiliary power control circuit 250 may short-circuit the power switch 207 based on the trigger signal. When the power switch 207 is shorted, the electronic device 201 can receive power from the external power source 205.

According to one embodiment, the controller 240 may change the driving state to a sleep state after outputting a trigger signal to the auxiliary power control circuit 250. For example, when the electronic device 201 receives power from the external power source 205 (e.g., the power switch 207 is short-circuited), the power control circuit 220 may be driven back to a sleep state. . Through this, the power control circuit 220 can minimize power consumption.

According to one embodiment, when the electronic device 201 is not supplied with power from the external power source 205 (e.g., the power switch 207 is open), the power control circuit 220 operates as described above. Operations (e.g., operations 501 to 507) can be performed again.

According to one embodiment, the power control circuit 220 may further include at least one pin connecting the signal generator 225 and the controller 240. The pulse signal output through the signal generator 225 may be provided to the controller 240 through at least one pin. The controller 240 can wake up based on a pulse signal (or energy included in the pulse signal) and output a trigger signal to the auxiliary power control circuit 250.

FIG. 5B is a flow chart for explaining the operation of an electronic device including a power control circuit according to an embodiment.

Referring to FIG. 5B , according to one embodiment, in operation 551, the external power source 205 and the functional unit 210 of the electronic device 201 are electrically cut off (e.g., the power switch 207 is opened). state), the signal generator 225 may output a high-level pulse signal based on a signal received from the outside through the antenna 222.

According to one embodiment, in operation 553, if the electrical connection between the controller 240 and the power supply unit 245 is interrupted while a high level pulse signal is provided to the switch circuit 227, the controller 240 turns- It can be turned off.

According to one embodiment, in operation 555, when the power unit 245 and the controller 240 are electrically reconnected, the controller 240 may be turned on and output a trigger signal to the auxiliary power control circuit 250. . For example, the signal generator 225 may output a high-level pulse signal and then output a low-level signal to the switch circuit 227. The signal converter 229 included in the switch circuit 227 inverts the low-level signal output from the signal generator 225 and transmits a high-level second signal to the switch 230 included in the switch circuit 227. may be approved or provided to. The switch 230 may electrically reconnect the controller 240 and the power supply unit 245 as the second signal is applied.

According to one embodiment, in operation 557, the auxiliary power control circuit 250 may electrically connect the external power source 205 and the functional unit 210 of the electronic device 201 based on the trigger signal. For example, the auxiliary power control circuit 250 may activate elements (eg, 252, 254, and 256) of the auxiliary power control circuit 250 based on a trigger signal. Thereafter, the auxiliary power control circuit 250 may short-circuit the power switch 207.

According to one embodiment, in operation 559, when the power switch 207 is short-circuited, power may be supplied to the functional unit 210 of the electronic device 201 from the external power source 205. Through this, the electronic device 201 can receive power from the external power source 205. Additionally, the electronic device 201 may perform a specific function supported by the electronic device 201 according to a control signal received from an external electronic device (e.g., BLE remote control 272).

FIG. 6 is a diagram for explaining the state of a controller of a power control circuit according to an embodiment.

Referring to FIG. 6, the controller 240 may be driven in any one of a power-on state (601), a sleep state (603), an off state (605), and a standby state (607).

According to one embodiment, in operation 611, the controller 240 may check a boot command (or boot operation request command). The controller 611 may execute a boot operation in response to a boot command. The controller 240 may be driven in the power-on state 601 based on execution of a boot operation. For example, the power-on state 601 may mean that the controller 240 is turned on.

According to one embodiment, in operation 613, the controller 240 may check the low power command in the power-on state 601. The controller 240 may change from the on state 601 to the sleep state 603 based on a low power command. For example, the sleep state 603 may mean a state in which the controller 240 is driven at low power. For example, the controller 240 may connect an event bus driver of the controller 240 to a state module in the sleep state 603. The controller 240 can continuously switch or change the driving state of the controller 240 through the state module of the controller 240. At this time, the controller 240 may deactivate devices within the controller 240. Through this, the controller 240 can maintain the sleep state 603 driven at low power. For example, the power consumed in the sleep state 603 may be less than the power consumed in the on state 601. For example, the controller 240 operates from 10 to 90 in the sleep state 603. It can consume power.

According to one embodiment, in operation 615, the signal generator 225 may output a pulse signal (or a first signal corresponding to the pulse signal) in the sleep state 603 of the controller 240. The controller 240 may temporarily change to the off state 605 based on the operation of the signal generator 225 to output a pulse signal (or a first signal corresponding to the pulse signal). For example, the off state 605 may mean that the controller 240 is turned off. For example, the controller 240 may not consume power in the off state 605.

According to one embodiment, in operation 617, the controller 240 may perform a wake-up operation from the off state 603. The controller 240 may change to the standby state 607 based on performance of a wake-up operation. For example, the standby state 607 may mean that the controller 240 is turned on again from the off state 605. For example, the controller 240, in the standby state 607, It can consume ~90mW of power.

According to one embodiment, in operation 619, the controller 240 may output a trigger signal to the auxiliary power control circuit 250 in the standby state 607. For example, the controller 240 may output a trigger signal after the wake-up operation is completed.

According to one embodiment, in operation 621, the controller 240 may confirm phase completion (or page clear). For example, the controller 240 may confirm phase completion based on an operation output by a trigger signal. The controller 240 may change from the standby state 607 back to the on state 601 based on the operation of confirming phase completion. For example, the controller 240 may change to the on state 601 immediately after outputting the trigger signal. In operation 623, the controller 240 may change to the sleep state 603 if the low power command is confirmed. According to one embodiment, the controller 240 may immediately change from the standby state 607 to the sleep state 603. Through this, the controller 240 can minimize power consumed in the standby state 607.

FIG. 7 is a diagram for explaining the operation of a power control circuit and the state of a controller according to an embodiment.

Referring to FIG. 7 , according to one embodiment, the controller 240 may be driven in a sleep state 710. When the controller 240 is in a sleep state 710, the signal generator 225 may output a low level signal to the signal converter 229. The signal received from the signal outputter 225 may be inverted and output to the switch 230. The signal generator 225 may output a high-level pulse signal 760 to the signal converter 229 in response to a signal received from an external electronic device (eg, 271, 272, or 273). The signal converter 229 may output a low-level first signal 770 obtained by inverting a high-level pulse signal to the switch 230. The electrical connection between the controller 240 and the power supply unit 245 may be blocked or released based on a pulse signal or a first signal corresponding to the pulse signal. For example, the switch 230 may block the electrical connection between the controller 240 and the power supply unit 245 while the first signal 770 is provided.

According to one embodiment, when the electrical connection between the controller 240 and the power supply unit 245 is blocked or released, the controller 240 may be turned off and changed to the off state 720. Afterwards, the signal generator 225 may output a low level signal again to the signal converter 229. The signal converter 229 may output a high-level second signal obtained by inverting the signal output from the signal generator to the switch 230. The switch 230 may electrically connect (or reconnect) the controller 240 and the power supply unit 245 based on the second signal. When the electrical connection between the controller 240 and the power supply unit 245 is restored (or reconnected), the controller 240 may be turned on and changed from the off state 720 to the standby state 730.

According to one embodiment, the controller 240 may start a wake-up operation based on the change from the off state to the standby state. The wake-up operation may be performed during the first time period 735. For example, the first time section 735 may be a wake up delay section. After the wake-up operation is completed, the controller 240 outputs a trigger signal 780 to the auxiliary power control circuit 250 to drive (or activate) the electronic device 201 (or the functional unit 210). there is.

According to one embodiment, the controller 240 may change from the standby state 730 back to the sleep state 740 after outputting a trigger signal. For example, the controller 240 may change to the sleep state 740 immediately after outputting a trigger signal. Alternatively, the controller 240 may output a trigger signal and change to the sleep state 740 after a specified time has elapsed.

According to the above-described method, the controller 240 can switch or change the driving state to minimize standby power consumption. For example, the controller 240 may be driven in a sleep state after outputting a trigger signal to minimize standby power consumption. Through this, the controller 240 can minimize standby power consumption.

FIG. 8 is a graph showing current consumption of a power control circuit according to an embodiment.

Referring to FIG. 8, according to one embodiment, the first graph 810 may represent the power consumed by the electronic device 201 of the present application in a standby state. The electronic device 201 may consume current of the first current value while driving the controller in the sleep state 801. The electronic device 201 may not consume current in the off state 803. The electronic device 201 may consume current with a current value that changes from the first current value to the second current value in the standby state 805. Thereafter, the electronic device 201 may consume current having the first current value in the sleep state 807 again. For example, the first current value is 30 to 50 It can be. For example, the second current value may be 8mA.

According to one embodiment, an existing electronic device may not include the power control circuit 220. The second graph 830 may represent the power consumed by an existing electronic device in a standby state. For example, an existing electronic device may consume current of a third current value in a standby state. For example, the third current value may be greater than the first current value and the second current value. For example, the third current value may be 9mA.

According to one embodiment, the controller 240 may minimize power consumption while sequentially changing the sleep state 801, the off state 803, the standby state 805, and the sleep state 807. That is, the electronic device 201 of the present application can minimize power consumption when the electronic device 201 is not activated. On the other hand, an existing electronic device may continuously consume power corresponding to a current having the third current value when the electronic device is not activated. Accordingly, the electronic device 201 according to one embodiment can minimize power consumption when the electronic device 201 is not activated.

The power control circuit 220 according to one embodiment includes an antenna 222, a controller 240, a power supply unit 245 that supplies power to the controller, and a switch circuit 227 that electrically connects the controller and the power supply unit. and a signal generator 225 configured to output a high-level pulse signal to the switch circuit based on a signal received from the outside through the antenna. According to one embodiment, if the electrical connection between the controller and the power supply unit is cut off while the pulse signal is output to the switch circuit, the controller may be turned off. According to one embodiment, the controller is turned on when the power supply unit and the controller are electrically reconnected as a low-level signal is output to the switch circuit after the pulse signal is output from the signal generator. It can be set to output a trigger signal so that power is supplied to the device 101.

The controller according to one embodiment may be set to change the driving state to a sleep state after outputting the trigger signal.

The controller according to one embodiment may be set to perform a wake-up operation when the power supply unit and the controller are electrically reconnected.

The controller according to one embodiment may be set to output the trigger signal after the wake-up operation is completed.

The switch circuit according to one embodiment may further include a signal converter 229 and switches 230 and 230-1. According to one embodiment, the signal converter converts the high level pulse signal output from the signal generator into a low level first signal, outputs the low level first signal to the switch, and converts the high level pulse signal output from the signal generator into the low level first signal. It can be set to convert the signal into a high level second signal and output it to the switch.

When the switch according to one embodiment is implemented as an N-type MOSFET 230-1, the switch may be set to electrically connect the controller to the ground based on the first signal being provided.

When the switch according to an embodiment is implemented as an N-type MOSFET (230-1), the switch electrically connects the controller and the power supply as the second signal is provided after the first signal is provided from the signal converter. It can be set to connect to .

The electronic device 201 according to one embodiment includes a functional unit 210, an external power source 205 and a first switch 207 disposed between the functional unit, an auxiliary power control circuit 250, and a power control circuit. It may include (220). According to one embodiment, the power control circuit includes a power supply unit 245, an antenna 222, a signal generator 225, a controller 240, and a switch circuit 227 that electrically connects the power supply unit 245 and the controller. may include. According to one embodiment, when the first switch is open, the signal generator may be set to output a high-level pulse signal to the switch circuit based on a signal received from an external electronic device through the antenna. there is. According to one embodiment, if the power unit and the controller are electrically cut off while the pulse signal is output to the switch circuit, the controller may be turned off. According to one embodiment, when the power unit and the controller are electrically reconnected as a low level signal is output to the switch circuit after the pulse signal is output from the signal generator, the controller is turned on and the auxiliary power control circuit It can be set to output a trigger signal at (250). According to one embodiment, the auxiliary power control circuit may be set to short-circuit the first switch based on the trigger signal. According to one embodiment, power may be provided to the functional unit from the external power source based on the first switch being short-circuited.

The controller according to one embodiment may be set to change the driving state to a sleep state after outputting the trigger signal.

The controller according to one embodiment may be set to perform a wake-up operation when the power supply unit and the controller are electrically reconnected.

The controller according to one embodiment may be set to output the trigger signal after the wake-up operation is completed.

The switch circuit according to one embodiment may further include a signal converter 229 and second switches 230 and 230-1. The signal converter according to an embodiment converts the high-level pulse signal output from the signal generator into a low-level first signal and outputs it to the second switch, and converts the high-level pulse signal output from the signal generator into a low-level first signal. It can be set to convert the signal into a high level second signal and output it to the second switch.

When the second switch according to one embodiment is implemented as an N-type MOSFET 230-1, the second switch may be set to electrically connect the controller to the ground based on the first signal being provided. .

When the second switch according to an embodiment is implemented with an N-type MOSFET (230-1), the second switch is connected to the controller as the second signal is provided after the first signal is provided from the signal converter. The power supply may be set to be electrically connected.

The electronic device according to one embodiment may be implemented as a home appliance electronic device including a TV, refrigerator, washing machine, air conditioner, heater, air purifier, dishwasher, dryer, or vacuum cleaner.

In a method of operating an electronic device 201 including a power control circuit 220 according to an embodiment, the power control circuit includes a power supply unit 245, a signal generator 225, a controller 240, and a power supply unit ( 245) and a switch circuit 227 that electrically connects the controller. According to one embodiment, the method of operating the electronic device includes receiving information from the external electronic device through the signal generator in a state in which the first switch 207 disposed between the external power source 205 and the electronic device is open. It may include outputting a pulse signal to the switch circuit based on the signal. According to one embodiment, if the power unit and the controller are electrically cut off while the pulse signal is output to the switch circuit, the controller may be turned off. According to one embodiment, a method of operating the electronic device includes, when the power unit and the controller are electrically reconnected as a low level signal is output to the switch circuit after the pulse signal is output from the signal generator, the turn- It may include outputting a trigger signal to the auxiliary power control circuit 250 of the electronic device through the turned-on controller. According to one embodiment, the method of operating the electronic device may include short-circuiting the first switch based on the trigger signal through the auxiliary power control circuit. According to one embodiment, a method of operating the electronic device may include receiving power from the external power source based on the first switch being short-circuited.

The method of operating the electronic device according to an embodiment may further include changing the driving state of the controller to a sleep state after outputting the trigger signal.

A method of operating the electronic device according to an embodiment includes converting the high-level pulse signal output from the signal generator into a low-level first signal through the signal converter 229 included in the switch circuit. An operation of outputting output to a second switch included in the switch circuit may be further included. A method of operating the electronic device according to an embodiment includes converting the low-level signal output from the signal generator into a high-level second signal through the signal converter and outputting the signal to the second switch. More may be included.

A method of operating the electronic device according to an embodiment includes, when the second switch is implemented as an N-type MOSFET 230-1, grounding the controller based on the first signal being provided to the second switch. The operation of electrically connecting may further be included.

A method of operating the electronic device according to an embodiment includes, when the second switch is implemented as an N-type MOSFET 230-1, after the first signal is provided to the second switch from the signal generator, the second switch An operation of electrically connecting the controller and the power supply may be further included as a signal is provided.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers 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 above items, unless the relevant context clearly indicates otherwise. As used herein, “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 “A Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to those components in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these. For example, a processor (e.g., processor 120) of a device (e.g., electronic device 101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated 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. A storage medium that can be read by a device 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 signals (e.g. electromagnetic waves). This term refers to cases where data is stored semi-permanently in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. 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 through an application store (e.g. Play Store ^TM ) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

According to various embodiments, each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. there is. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, 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, or omitted. Alternatively, one or more other operations may be added.

201: Electronic device
220: Power control circuit
225: signal generator
240: controller
245: power unit
250: Auxiliary power control circuit

Claims (20)

In the power control circuit 220,
antenna 222;
controller 240;
A power supply unit 245 that supplies power to the controller;
a switch circuit 227 electrically connecting the controller and the power supply; and
A signal generator 225 configured to output a high-level pulse signal to the switch circuit based on a signal received from the outside through the antenna, and while the pulse signal is output to the switch circuit, the controller and the power unit When the electrical connection between them is cut off, the controller turns off,
The controller is,
After the pulse signal is output from the signal generator, a low-level signal is provided to the switch circuit, and when the power unit and the controller are electrically reconnected, it is turned on and triggered to supply power to the electronic device 101. A power control circuit set to output a signal. The method of claim 1, wherein the controller:
A power control circuit configured to change the driving state to a sleep state after outputting the trigger signal. The method of any one of claims 1 to 2, wherein the controller:
A power control circuit configured to perform a wake-up operation when the power unit and the controller are electrically reconnected. The method of any one of claims 1 to 3, wherein the controller:
A power control circuit configured to output the trigger signal after the wake-up operation is completed. According to any one of claims 1 to 4,
The switch circuit further includes a signal converter 229 and switches 230 and 230-1,
The signal converter is configured to output a low-level first signal obtained by inverting the high-level pulse signal output from the signal generator to the switch. According to any one of claims 1 to 5,
When the switch is implemented as an N-type MOSFET (230-1), the switch is configured to electrically connect the controller to the ground based on the first signal being provided. According to any one of claims 1 to 6,
When the switch is implemented as an N-type MOSFET 230-1, the switch is provided with a high-level second signal obtained by inverting the low-level signal after the first signal is provided from the signal converter. A power control circuit configured to electrically connect a controller and the power supply unit. In the electronic device 201,
Functional unit 210;
A first switch (207) disposed between an external power source (205) and the functional unit;
Auxiliary power control circuit 250; and
Includes a power control circuit 220,
The power control circuit includes a power supply unit 245, an antenna 222, a signal generator 225, a controller 240, and a switch circuit 227 that electrically connects the power supply unit 245 and the controller,
When the first switch is open, the signal generator is set to output a high-level pulse signal to the switch circuit based on a signal received from an external electronic device through the antenna, and the pulse signal is If the power unit and the controller are electrically cut off while output is being output to the switch circuit, the controller is turned off,
After the pulse signal is output from the signal generator, a low-level signal is output to the switch circuit, and when the power supply unit and the controller are electrically reconnected, the controller is turned on and outputs a trigger signal to the auxiliary power control circuit. is set to,
The auxiliary power control circuit 250 is set to short-circuit the first switch based on the trigger signal,
An electronic device in which power is provided to the functional unit from the external power source based on the first switch being short-circuited. The method of claim 8, wherein the controller:
An electronic device configured to change the driving state to a sleep state after outputting the trigger signal. The method of any one of claims 8 to 9, wherein the controller:
An electronic device configured to perform a wake-up operation when the power supply unit and the controller are electrically reconnected. The method of any one of claims 8 to 10, wherein the controller:
An electronic device configured to output the trigger signal after the wake-up operation is completed. According to any one of claims 8 to 11,
The switch circuit further includes a signal converter (229, 229-1) and a second switch (230, 230-1),
The signal converter converts the high level pulse signal output from the signal generator into a low level first signal and outputs it to the second switch, and converts the low level signal output from the signal generator into a high level signal. An electronic device configured to convert a second signal and output it to the second switch. According to any one of claims 8 to 12,
When the second switch is implemented as an N-type MOSFET (230-1), the second switch is configured to electrically connect the controller to the ground based on the first signal being provided. According to any one of claims 8 to 13,
When the second switch is implemented as an N-type MOSFET (230-1), the second switch electrically connects the controller and the power supply as the second signal is provided after the first signal is provided from the signal converter. Electronic devices set to connect. According to any one of claims 8 to 14,
The electronic device is an electronic device implemented as a home appliance electronic device including a TV, refrigerator, washing machine, air conditioner, heater, air purifier, dishwasher, dryer, or vacuum cleaner. In a method of operating an electronic device 201 including a power control circuit 220,
Here, the power control circuit includes a power supply unit 245, a signal generator 225, a controller 240, and a switch circuit 227 that electrically connects the power supply unit 245 and the controller,
The method of operating the electronic device is:
When the first switch 207 disposed between the external power source 205 and the electronic device is open, outputting a pulse signal to the switch circuit through the signal generator based on a signal received from the external electronic device. In operation, when the power unit and the controller are electrically cut off while the pulse signal is output to the switch circuit, the controller is turned off;
When the power unit and the controller are electrically reconnected as a low level signal is output to the switch circuit after the pulse signal is output from the signal generator, the auxiliary power control circuit of the electronic device through the turned-on controller An operation of outputting a trigger signal at (250);
Short-circuiting the first switch based on the trigger signal through the auxiliary power control circuit; and
A method of operating an electronic device including receiving power from the external power source based on the first switch being short-circuited. According to clause 16,
A method of operating an electronic device further comprising changing the driving state of the controller to a sleep state after outputting the trigger signal. According to any one of claims 16 to 17,
Through the signal converter 229-1 included in the switch circuit, the high level pulse signal output from the signal generator is converted into a low level first signal and output to the second switch included in the switch circuit. action; and
A method of operating an electronic device further comprising converting the low level signal output from the signal generator into a high level second signal and outputting the signal to the second switch through the signal converter. According to any one of claims 16 to 18,
When the second switch is implemented as an N-type MOSFET 230-1, the operation of the electronic device further includes electrically connecting the controller to the ground based on the first signal being provided to the second switch. method. According to any one of claims 16 to 19,
When the second switch is implemented with an N-type MOSFET (230-1), after the first signal is provided to the second switch from the signal converter, the controller and the power supply are electrically connected as the second signal is provided. A method of operating an electronic device further comprising connecting.

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