CN111628541B - Electronic equipment's shutdown power supply circuit and electronic equipment - Google Patents
Electronic equipment's shutdown power supply circuit and electronic equipment Download PDFInfo
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- CN111628541B CN111628541B CN202010400743.3A CN202010400743A CN111628541B CN 111628541 B CN111628541 B CN 111628541B CN 202010400743 A CN202010400743 A CN 202010400743A CN 111628541 B CN111628541 B CN 111628541B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/30—Charge provided using DC bus or data bus of a computer
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Abstract
The application belongs to the technical field of electronic equipment, and particularly relates to a shutdown power supply circuit of electronic equipment and the electronic equipment. The shutdown power supply circuit comprises an electronic switch circuit, a controller and a first power supply circuit, wherein the electronic switch circuit is conducted when the electronic equipment is shut down and the first key is triggered, supplies the electric energy of the battery to the controller, and triggers the controller to be electrified and initialized; the controller controls the electronic switch circuit to be continuously conducted after power-on initialization, acquires the residual electric quantity of the battery through the power management chip, and controls the start and stop of the first power supply circuit according to the residual electric quantity; when the first power supply circuit is started to work, the battery voltage is converted into a first charging voltage to be output to the USB interface, and the first charging voltage is used for charging equipment to be charged of the USB interface. The electronic equipment can supply power for the equipment connected with the USB interface in the shutdown state, effectively saves the electric energy consumed by the startup operation of the electronic equipment, and improves the charging capacity of the electronic equipment for other equipment.
Description
Technical Field
The application belongs to the technical field of electronic equipment charging, and particularly relates to a shutdown power supply circuit of electronic equipment and the electronic equipment.
Background
At present, electronic devices such as notebook computers and personal computers have a function of charging other devices connected to USB interfaces thereof. However, the conventional electronic device can only charge other devices in the power-on state while charging other devices, and a large amount of electric energy needs to be consumed to power on the electronic device, which causes a serious electric energy waste and reduces the charging amount that the electronic device can provide for other devices.
Disclosure of Invention
In view of this, the present application provides a shutdown power supply circuit of an electronic device and the electronic device, so as to solve the problem that the conventional electronic device cannot supply power to a USB external device in a shutdown state.
In a first aspect, an embodiment of the present application provides a shutdown power supply circuit for an electronic device, which is characterized by including an electronic switch circuit, a controller, and a first power supply circuit, which are connected in sequence;
the electronic switch circuit is used for being connected with a first key and a battery of the electronic equipment, and is conducted when the electronic equipment is in a power-off state and the first key is triggered, so that the electric energy of the battery is output to the controller to trigger the controller to be electrified and initialized;
the controller is used for being connected with a power management chip of the electronic equipment, controlling the electronic switch circuit to be continuously conducted after power-on initialization, acquiring the residual electric quantity of the battery through the power management chip, triggering the first power supply circuit to start working when the residual electric quantity is greater than a first electric quantity threshold value, and triggering the first power supply circuit to stop working when the residual electric quantity is less than or equal to the first electric quantity threshold value;
the first power supply circuit is used for being connected with a battery of the electronic equipment and a USB interface, and outputting first charging voltage to the USB interface when the electronic equipment is started to work so as to charge the equipment to be charged when the USB interface is connected with the equipment to be charged.
In one embodiment, the shutdown power supply circuit further comprises a charging current detection circuit and a second power supply circuit which are connected with the controller;
the charging current detection circuit is used for being connected with the USB interface, detecting the magnitude of charging current and sending the magnitude of the charging current to the controller when the USB interface is connected with equipment to be charged to charge the equipment to be charged;
the controller is further used for triggering the first power supply circuit to stop working and triggering the second power supply circuit to start working when the charging current is smaller than a preset current threshold value, and triggering the second power supply circuit to stop working when the residual electric quantity is smaller than or equal to a first electric quantity threshold value;
the second power supply circuit is used for being connected with the battery and the USB interface and outputting second charging voltage to the USB interface to charge the equipment to be charged when the second power supply circuit is started to work; wherein the first charging voltage is greater than the second charging voltage.
In one embodiment, the controller is further configured to be connected to a central processing unit of the electronic device, and when the USB interface is connected to a device to be charged to charge the device to be charged, the central processing unit is triggered to acquire an electric quantity of the device to be charged, and when the electric quantity of the device to be charged is greater than a second electric quantity threshold, the first power supply circuit is triggered to stop working and the second power supply circuit is triggered to start working.
In one embodiment, the first power supply circuit and the second power supply circuit are used for being connected with the battery through the power management chip.
In one embodiment, the controller is further configured to connect with a second key of the electronic device and a central processing unit, and when the USB interface is connected to a device to be charged to charge the device to be charged and the second key is triggered, trigger the central processing unit to start a basic input/output system of the electronic device, so as to trigger the basic input/output system to control a display screen of the electronic device to display the remaining power.
In one embodiment, the controller is further configured to trigger the display screen to close after the display screen displays the remaining power for a preset time, so as to stop displaying the remaining power.
In one embodiment, the first power supply circuit is a dc-dc converter, and the second power supply circuit is a first low dropout linear regulator.
In one embodiment, the shutdown power supply circuit further comprises a third power supply circuit;
the third power supply circuit is used for being connected between the battery and the electronic switch circuit, converting the electric energy of the battery into working voltage suitable for the controller and outputting the working voltage to the controller when the electronic switch circuit is conducted.
In one embodiment, the third power supply circuit is a second low dropout linear regulator.
In a second aspect, an embodiment of the present application provides an electronic device, which is characterized by comprising a central processing unit, a first key, a second key, a battery, a power management chip, a USB interface, and a shutdown power supply circuit described in the first aspect and its modifications.
The beneficial effects of the embodiment of the application are that: according to the electronic equipment, the electronic switch circuit, the controller and the power supply circuit are arranged in the electronic equipment, the electronic switch circuit is triggered to be switched on through the keys when the electronic equipment is in a shutdown state, the controller is powered on, and then the battery of the electronic equipment is controlled to supply power to the USB interface through the power supply circuit, so that the electronic equipment can supply power to other equipment connected with the USB interface in the shutdown state, the electric energy consumed by the startup operation of the electronic equipment is effectively saved, and the charging amount of the electronic equipment which can be provided for the other equipment is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a shutdown power supply circuit of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a shutdown power supply circuit of an electronic device according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of a shutdown power supply circuit of an electronic device according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of a shutdown power supply circuit of an electronic device according to a fourth embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically stated.
In order to explain the technical means described in the present application, the following description will be given by way of specific embodiments.
Fig. 1 is a schematic structural diagram of a shutdown power supply circuit of an electronic device according to an embodiment of the present application. For convenience of explanation, only portions related to the embodiments of the present application are shown.
The embodiment of the application provides a shutdown power supply circuit 101 of an electronic device, which comprises an electronic switch circuit 1, a controller 2 and a first power supply circuit 3 which are connected in sequence;
the electronic switch circuit 1 is used for being connected with a first key 102 and a battery 103 of the electronic device, and is turned on when the electronic device is in a shutdown state and the first key 102 is triggered, so as to output the electric energy of the battery 103 to the controller 2, so as to trigger the controller 2 to be powered on and initialized;
the controller 2 is used for connecting with a power management chip 104 of the electronic device, controlling the electronic switch circuit 1 to be continuously conducted after power-on initialization, acquiring the residual electric quantity of the battery through the power management chip 104, triggering the first power supply circuit 3 to start working when the residual electric quantity is greater than a first electric quantity threshold value, and triggering the first power supply circuit 3 to stop working when the residual electric quantity is less than or equal to the first electric quantity threshold value;
the first power supply circuit 3 is configured to be connected to a battery 103 and a USB interface 105 of the electronic device, and output a first charging voltage to the USB interface 105 when the electronic device is started to operate, so as to charge the device to be charged when the USB interface 105 is connected to the device to be charged.
In application, the electronic device may refer to a device such as a notebook computer, a palm computer, a personal computer, etc. having a central processing unit, a key, a battery, a power management chip, and a USB (Universal Serial Bus) interface. The shutdown power supply circuit is arranged in the electronic equipment and used for charging equipment to be charged connected with a USB interface of the electronic equipment after the electronic equipment is shut down. The keys may be physical keys arranged at any position on the electronic device, when the electronic device is provided with a physical keyboard, the keys may be keys in the physical keyboard, and when the electronic device is provided with a touch display screen, the keys may be virtual keys displayed on the touch display screen, and specifically may be virtual keys in a virtual keyboard displayed on the touch display screen. When the physical keyboard or the virtual keyboard of the electronic device is a computer keyboard, the first key may include at least one existing function key in the computer keyboard, for example, the first key includes an "F3" key, and the "F3" key may be triggered by the user pressing the "F3" key; alternatively, the first key may include an "F3" key and an "F4" key, and the user may activate the "F3" key and the "F4" key by simultaneously pressing the "F3" key and the "F4" key. The first key may also include a new key disposed at any position on the electronic device, and when the electronic device is disposed with a physical or virtual keyboard, the first key may be a new key disposed in the physical or virtual keyboard.
In application, the electronic switch circuit may be implemented by a transistor having an electronic switching function, such as a triode or a field effect transistor, for example, a P-Channel depletion mode field effect transistor (PMOS).
In an Application, the Controller may be an Embedded Controller (EC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In one embodiment, the controller is an embedded controller.
In application, the first power supply circuit may be implemented by a Direct Current-Direct Current (DCDC) converter, a Low Dropout regulator (LDO), or other voltage conversion devices.
In one embodiment, the first power supply circuit is a dc-to-dc converter.
When the charging device is used, the device to be charged is connected with the USB interface, the electronic switch circuit can be conducted after the first key is pressed for a certain time, so that the controller is electrified and initialized, and if the residual electric quantity of the battery of the electronic device is large, the first power supply circuit is conducted to charge the device to be charged.
In the embodiment, the electronic switch circuit, the controller and the power supply circuit are arranged in the electronic equipment, the electronic switch circuit is triggered to be switched on through the key when the electronic equipment is in the shutdown state, so that the controller is powered on, and then the battery of the electronic equipment is controlled to supply power for the USB interface through the power supply circuit, so that the electronic equipment can supply power for other equipment connected with the USB interface in the shutdown state, the electric energy consumed by the startup operation of the electronic equipment is effectively saved, and the charging capacity of the electronic equipment which can provide for other equipment is improved.
As shown in fig. 2, in one embodiment, the shutdown power supply circuit 101 further includes a charging current detection circuit 4 and a second power supply circuit 5 connected to the controller 2;
the charging current detection circuit 4 is used for being connected with the USB interface 105, and detecting the magnitude of the charging current and sending the magnitude to the controller 2 when the USB interface 105 is connected with a device to be charged to charge the device to be charged;
the controller 2 is further configured to trigger the first power supply circuit 3 to stop working and trigger the second power supply circuit 5 to start working when the charging current is less than a preset current threshold, and trigger the second power supply circuit 5 to stop working when the remaining power is less than or equal to the first power threshold;
the second power supply circuit 5 is used for connecting the battery 103 and the USB interface 105, and outputting a second charging voltage to the USB interface 105 to charge the device to be charged when the device is started; wherein the first charging voltage is greater than the second charging voltage.
The controller 2 is further configured to be connected to a central processing unit of the electronic device, and when the USB interface 105 is connected to a device to be charged to charge the device to be charged, the central processing unit is triggered to obtain an electric quantity of the device to be charged, and when the electric quantity of the device to be charged is greater than a second electric quantity threshold, the first power supply circuit 3 is triggered to stop working and the second power supply circuit 5 is triggered to start working.
In application, the first power supply circuit and the second power supply circuit are used for being connected with the battery through the power management chip, and the first power supply circuit and the second power supply circuit can also be directly connected with the battery.
In an application, the charging current detection circuit may be a charging chip. The second power supply circuit may be implemented by a dc-to-dc converter, a low dropout regulator, or other voltage conversion device.
In one embodiment, the second power supply circuit is a first low dropout linear regulator.
This embodiment is through setting up two supply circuit in electronic equipment, be first supply circuit and second supply circuit respectively, and the supply voltage of first supply circuit is greater than the supply voltage of second supply circuit, and when the charging current of the equipment of waiting to charge of USB interface is less or when the electric quantity of the equipment of waiting to charge of USB interface is great, switches the power supply of little voltage with original big voltage power supply, avoids waiting to charge the overcharge of equipment, can also keep shutdown supply circuit for standby state simultaneously.
As shown in fig. 3, in an embodiment, the controller 2 is further configured to connect with a second key 106 of the electronic device and a central processing unit 107, and when the USB interface 105 is connected to the device to be charged to charge the device to be charged and the second key 106 is triggered, trigger the central processing unit 107 to start a Basic Input Output System (BIOS) of the electronic device, so as to trigger the BIOS to control a display 108 of the electronic device to display the remaining power.
The controller 2 is further configured to trigger the display screen 108 to turn off after the display screen 108 displays the remaining power for a preset time, so as to stop displaying the remaining power.
In an application, the second key and the first key may comprise the same or different keys. When the second key and the first key comprise the same key, when the electronic equipment is in a power-off state, the key is triggered for the first time to trigger the electronic switching circuit to be conducted, and then when the key is triggered again, the key is used for triggering the central processing unit to start the basic input and output system. When the physical keyboard or the virtual keyboard of the electronic device is a computer keyboard, the second key may include at least one existing function key in the computer keyboard, for example, the second key includes an "F3" key, and the "F3" key may be triggered by the user pressing the "F3" key; alternatively, the second key may include an "F3" key and an "F4" key, and the user may activate the "F3" key and the "F4" key by simultaneously pressing the "F3" key and the "F4" key. The second key may also include a new key disposed at any position on the electronic device, and when the electronic device is disposed with a physical or virtual keyboard, the second key may be a new key disposed in the physical or virtual keyboard.
In the embodiment, the controller is connected with the central processing unit in the notebook computer, when the device to be charged is charged in the shutdown state of the notebook computer, the controller controls and starts the BIOS in the central processing unit, and the BIOS controls the display screen of the notebook computer to display the residual electric quantity of the battery of the notebook computer, so that the residual electric quantity of the notebook computer can be effectively prompted to a user, and the electric energy consumption caused by the whole operation of the central processing unit is avoided.
As shown in fig. 4, in one embodiment, the shutdown power supply circuit 101 further includes a third power supply circuit 6;
the third power supply circuit 6 is connected between the battery 103 and the electronic switch circuit 1, and converts the electric energy of the battery 103 into an operating voltage suitable for the controller 2 and outputs the operating voltage to the controller 2 when the electronic switch circuit 1 is turned on.
In application, the third power supply circuit may be implemented by a dc-dc converter, a low dropout regulator or other voltage conversion device.
In one embodiment, the third power supply circuit is a second low dropout linear regulator.
An embodiment of the present application further provides an electronic device, which includes a central processing unit, a first key, a second key, a battery, a power management chip, a USB interface, and a power-off power supply circuit, where the power-off power supply circuit is described in detail in the first to fourth embodiments, and is not described herein again. The electronic device can be a notebook computer, a palm computer and other devices with batteries and USB interfaces.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (9)
1. A shutdown power supply circuit of electronic equipment is characterized by comprising an electronic switch circuit, a controller and a first power supply circuit which are sequentially connected;
the electronic switch circuit is used for being connected with a first key and a battery of the electronic equipment, and is conducted when the electronic equipment is in a power-off state and the first key is triggered, so that the electric energy of the battery is output to the controller to trigger the controller to be electrified and initialized; when the electronic equipment is provided with an entity keyboard, the first keys are keys in the entity keyboard; when the electronic equipment is provided with a touch display screen, the first key is a virtual key displayed on the touch display screen;
the controller is used for being connected with a power management chip of the electronic equipment, controlling the electronic switch circuit to be continuously conducted after power-on initialization, acquiring the residual electric quantity of the battery through the power management chip, triggering the first power supply circuit to start working when the residual electric quantity is greater than a first electric quantity threshold value, and triggering the first power supply circuit to stop working when the residual electric quantity is less than or equal to the first electric quantity threshold value;
the first power supply circuit is used for being connected with a battery and a USB interface of the electronic equipment, and outputting a first charging voltage to the USB interface when the electronic equipment is started to work so as to charge the equipment to be charged when the USB interface is connected with the equipment to be charged;
the controller is further used for being connected with a second key and a central processing unit of the electronic equipment, and when the USB interface is connected with equipment to be charged to charge the equipment to be charged and the second key is triggered, the central processing unit is triggered to start a basic input and output system of the electronic equipment so as to trigger the basic input and output system to control a display screen of the electronic equipment to display the residual electric quantity; when the second key and the first key comprise the same key, when the electronic device is in a power-off state, the second key is triggered for the first time to trigger the electronic switch circuit to be conducted, and then the second key is triggered again to trigger the central processing unit to start the basic input and output system.
2. The shutdown power supply circuit of claim 1, further comprising a charge current detection circuit and a second power supply circuit connected to the controller;
the charging current detection circuit is used for being connected with the USB interface, detecting the magnitude of charging current and sending the magnitude of the charging current to the controller when the USB interface is connected with a device to be charged to charge the device to be charged;
the controller is further used for triggering the first power supply circuit to stop working and triggering the second power supply circuit to start working when the charging current is smaller than a preset current threshold value, and triggering the second power supply circuit to stop working when the residual electric quantity is smaller than or equal to a first electric quantity threshold value;
the second power supply circuit is used for being connected with the battery and the USB interface and outputting second charging voltage to the USB interface to charge the equipment to be charged when the USB interface is started to work; wherein the first charging voltage is greater than the second charging voltage.
3. The shutdown power supply circuit of claim 2, wherein the controller is further configured to connect to a central processing unit of the electronic device, and when the USB interface is connected to a device to be charged to charge the device to be charged, trigger the central processing unit to obtain an electric quantity of the device to be charged, and when the electric quantity of the device to be charged is greater than a second electric quantity threshold, trigger the first power supply circuit to stop working and trigger the second power supply circuit to start working.
4. The shutdown power supply circuit of claim 2, wherein the first power supply circuit and the second power supply circuit are configured to be connected to the battery via the power management chip.
5. The shutdown power supply circuit of claim 1, wherein the controller is further configured to trigger the display screen to shut down to stop displaying the remaining power after the display screen displays the remaining power for a preset time.
6. A shutdown power supply circuit as claimed in any one of claims 2 to 4, wherein said first power supply circuit is a DC-to-DC converter and said second power supply circuit is a first low dropout linear regulator.
7. The shutdown power supply circuit of any one of claims 1 to 5, further comprising a third power supply circuit;
the third power supply circuit is used for being connected between the battery and the electronic switch circuit, converting the electric energy of the battery into working voltage suitable for the controller and outputting the working voltage to the controller when the electronic switch circuit is switched on.
8. The shutdown power supply circuit of claim 7, wherein the third power supply circuit is a second low dropout linear regulator.
9. An electronic device, comprising a central processing unit, a first button, a second button, a battery, a power management chip, a USB interface, and the shutdown power supply circuit of any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010400743.3A CN111628541B (en) | 2020-05-13 | 2020-05-13 | Electronic equipment's shutdown power supply circuit and electronic equipment |
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| CN202010400743.3A CN111628541B (en) | 2020-05-13 | 2020-05-13 | Electronic equipment's shutdown power supply circuit and electronic equipment |
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| CN111628541A CN111628541A (en) | 2020-09-04 |
| CN111628541B true CN111628541B (en) | 2022-09-23 |
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| CN106786860A (en) * | 2016-12-13 | 2017-05-31 | 合肥联宝信息技术有限公司 | The control method and electronic equipment of a kind of quick charge |
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