CN116780723B - Power supply control method and system and electronic equipment - Google Patents

Power supply control method and system and electronic equipment Download PDF

Info

Publication number
CN116780723B
CN116780723B CN202311040198.1A CN202311040198A CN116780723B CN 116780723 B CN116780723 B CN 116780723B CN 202311040198 A CN202311040198 A CN 202311040198A CN 116780723 B CN116780723 B CN 116780723B
Authority
CN
China
Prior art keywords
power supply
power
voltage
adapter
power adapter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202311040198.1A
Other languages
Chinese (zh)
Other versions
CN116780723A (en
Inventor
王宜文
潘敏杰
王辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Lianbao Information Technology Co Ltd
Original Assignee
Hefei Lianbao Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Lianbao Information Technology Co Ltd filed Critical Hefei Lianbao Information Technology Co Ltd
Priority to CN202311040198.1A priority Critical patent/CN116780723B/en
Publication of CN116780723A publication Critical patent/CN116780723A/en
Application granted granted Critical
Publication of CN116780723B publication Critical patent/CN116780723B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • 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
    • 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
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • 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
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Abstract

The application discloses a power supply control method, a system and electronic equipment, wherein the power supply control method comprises the steps of acquiring power supply information of each power supply adapter under the condition that a plurality of power supply adapters are determined to be connected; adjusting the target voltage transmitted to the corresponding transistor of the power adapter based on the power supply information so as to control at least one power adapter to supply power; the grid electrode of the transistor is connected with the control circuit to receive the target voltage transmitted by the controller. When the power supply of the power adapters is determined to be connected, the target voltage transmitted to the transistor corresponding to the power adapter is adjusted based on the power supply information of each power adapter so as to control at least one power adapter to supply power, namely, the power adapters can supply power simultaneously by adjusting the target voltage transmitted to the transistor, and the power supply vacuum period can not be generated when the power supply of the power adapters is switched, so that the situation that a load is blocked or powered off is avoided.

Description

Power supply control method and system and electronic equipment
Technical Field
The present application relates to the field of power supply control technologies, and in particular, to a power supply control method, a power supply control system, and an electronic device.
Background
Most of the existing notebook and other electronic devices are powered by a single power supply, one power supply is turned off when two power adapters are connected, and when the power supplies are switched, if the switching time is too early, the two power adapters are easy to reverse-irrigate; if the switching time is too late, the system is shut down due to power failure.
In the current solution, the first: the two-way interlocking switching is performed by monitoring two-way voltage, controlling the two switches for power transmission current and selecting proper time delay; second kind: the controller confirms which power supply is used, then the power input of the power supply is disconnected firstly, and then the power supply which needs to be switched in is connected to supply power, so that the power consumption of the CPU and the system is reduced before switching, and the power-off shutdown of the system caused by the switching vacuum period is reduced. However, the two switching modes still have a power supply vacuum period, so that the power consumption of the system is reduced in the switching process, a customer can feel that the system is blocked in a short time, and meanwhile, if the time delay is unreasonable, the risk of system outage still exists.
Disclosure of Invention
The embodiment of the application aims to provide a power supply control method, a system and electronic equipment, which not only can realize that a plurality of power adapters supply power simultaneously, but also can realize that a power supply vacuum period is not generated when power supply switching is performed among the plurality of power adapters, and avoid the condition that a load is blocked or powered off.
In a first aspect, an embodiment of the present application provides a power supply control method, applied to a control circuit, where the power supply control method includes:
acquiring power supply information of each power adapter under the condition that a plurality of power adapters are determined to be connected;
adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information so as to control at least one power adapter to supply power;
the grid electrode of the transistor is connected with the control circuit so as to receive the target voltage transmitted by the control circuit.
In one possible embodiment, the power supply control method further includes:
monitoring voltage of a target monitoring point is monitored in real time;
and under the condition that the monitoring voltage is monitored to be non-zero, determining that the interface corresponding to the target monitoring point is connected with a power adapter.
In one possible implementation manner, the obtaining power supply information of each power adapter includes:
acquiring a power supply current of a feedback circuit connected with the power adapter;
the power supply information is obtained based on the power supply current.
In a possible implementation manner, the obtaining the power supply information based on the target current includes:
determining the power supply current as the power supply information; or (b)
Determining the resistance of a feedback resistor connected in parallel with the feedback circuit, and determining the power supply voltage and the power supply current determined by the resistance and the power supply current as the power supply information; or (b)
And determining a resistance value of a feedback resistor connected in parallel with the feedback circuit, determining a supply voltage based on the resistance value and the supply current, determining a supply power based on the supply current and the supply voltage, and determining the supply current, the supply voltage and the supply power as the supply information.
In one possible implementation manner, the adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information to control at least one power adapter to supply power includes:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
when the voltage difference is smaller than or equal to a preset threshold value, adjusting a first target voltage transmitted to a first transistor corresponding to the first power adapter or adjusting a second target voltage transmitted to a second transistor corresponding to the second power adapter, so that the first power adapter and the second power adapter supply power simultaneously;
wherein the preset threshold is determined based on attribute information of the first transistor or the second transistor.
In one possible implementation manner, the adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information to control at least one power adapter to supply power includes:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
transmitting a first target voltage to a transistor corresponding to a power adapter with large power supply voltage under the condition that the voltage difference is larger than a preset threshold value, so that the transistor corresponding to the power adapter with large power supply voltage is conducted to control the power adapter with large power supply voltage to supply power; and
and transmitting the second target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is disconnected, and the power supply of the power adapter with the small power supply voltage is controlled to stop.
In one possible embodiment, the power supply control method further includes:
stopping transmitting the first target voltage to a transistor corresponding to the power adapter with large power supply voltage under the condition that the monitored voltage corresponding to the power adapter with large power supply voltage is zero;
and transmitting the third target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is conducted to control the power adapter with the small power supply voltage to supply power.
In a second aspect, an embodiment of the present application further provides a power supply control system, including a control circuit and a plurality of adjustment circuits, where each adjustment circuit is connected to the control circuit, and the adjustment circuit includes a transistor, a feedback circuit, and a feedback resistor;
the control circuit is used for acquiring power supply information of each power adapter when a plurality of power adapters are determined to be connected; adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information so as to control at least one power adapter to supply power;
the grid electrode of the transistor is connected with the control circuit so as to receive the target voltage transmitted by the control circuit.
In one possible implementation, the control circuit is further configured to monitor the monitored voltage of the target monitoring point in real time; when the monitoring voltage is monitored to be non-zero value, the interface corresponding to the target monitoring point is determined to be connected with a power adapter.
In a third aspect, an embodiment of the present application further provides an electronic device, including a power supply control system and a load as described above, where the power supply control system is used to supply power to the load.
In the embodiment of the application, when a plurality of power adapters are determined to be connected, the target voltage transmitted to the transistor corresponding to each power adapter is adjusted based on the power supply information of each power adapter so as to control at least one power adapter to supply power, namely, the power adapters can supply power simultaneously by adjusting the target voltage transmitted to the transistor, and the power supply switching among the power adapters can be realized without generating a power supply vacuum period, so that the condition that a load is blocked or powered off is avoided.
Drawings
In order to more clearly illustrate the application or the technical solutions of the prior art, the drawings that are used in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments described in the present application, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 shows a flow chart of a power supply control method provided by the application;
fig. 2 shows a schematic structural diagram of a power supply control system provided by the application.
Detailed Description
Various aspects and features of the present application are described herein with reference to the accompanying drawings.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the application will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with a general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the application.
These and other characteristics of the application will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also to be understood that, although the application has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present application will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the application, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the application in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the application.
In practical application, the power supply control method provided by the embodiment of the application is applied to a control circuit, and the control circuit comprises a processor, a controller and the like.
As shown in fig. 1, a flowchart of a power supply control method according to an embodiment of the present application is shown, where specific steps include S101 and S102.
S101, in a case where it is determined that a plurality of power adapters are connected, power supply information of each power adapter is acquired.
In specific implementation, a target monitoring point is arranged between the control circuit and the power adapter, the monitoring voltage of the target monitoring point is monitored in real time through the controller, and in the case that the monitoring voltage is monitored to be a non-zero value, it is determined that the power adapter is connected to the interface corresponding to the target monitoring point, that is, the power adapter supplies power through the interface corresponding to the target monitoring point.
Of course, the monitored current at the target monitoring point can also be monitored, that is, if the monitored current is a non-zero value, it is determined that the interface corresponding to the target monitoring point is connected with the power adapter.
If the monitored voltage at the plurality of target monitoring points is a non-zero value, it indicates that a plurality of power adapters are connected. At this time, the power supply information of each power adapter is acquired for that power adapter.
When the power supply information of each power adapter is acquired, the power supply current of a feedback circuit connected with the power adapter is acquired to acquire the power supply information based on the power supply current. The interface of each power adapter corresponds to a power supply line, each power supply line at least comprises a feedback circuit and a parallel connection, the feedback circuit is connected with a resistor in parallel, and the feedback circuit is positioned between the interface of the power adapter and the load and is connected with the control circuit.
When the power supply information is obtained based on the target current, the power supply current can be directly determined as the power supply information; the resistance value of a feedback resistor connected in parallel with the feedback circuit can be determined, and the power supply voltage and the power supply current determined by the resistance value and the power supply current are determined to be power supply information; the resistance of a feedback resistor connected in parallel with the feedback circuit may also be determined, the supply voltage may be determined based on the resistance and the supply current, the supply power may be determined based on the supply current and the supply voltage, and the supply current, the supply voltage, and the supply power may be determined as the supply information.
S102, adjusting the target voltage transmitted to the corresponding transistor of the power adapter based on the power supply information so as to control at least one power adapter to supply power.
The gate of the transistor is connected to the control circuit to receive the target voltage transmitted by the control circuit, and optionally, the transistor in the embodiment of the application is an N-Metal-Oxide-Semiconductor (NMOS) transistor, and the gate of the transistor has different resistance characteristics, such as different resistance values, when receiving different voltages.
After the power supply information is obtained, the target voltage transmitted to the corresponding transistor of the power adapter is adjusted based on the power supply information so as to control at least one power adapter to supply power. Next, an example will be described in which two power adapters are connected.
At the moment, two power adapters, namely a first power adapter and a second power adapter, are determined to be connected, and correspondingly, first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter are obtained. Then, a voltage difference between a first power supply voltage provided by the first power adapter and a second power supply voltage provided by the second power adapter is determined based on the first power supply information and the second power supply information. For example, a first power supply voltage is extracted from the first power supply information, a second power supply voltage is extracted from the second power supply information, and a difference between the first power supply voltage and the second power supply voltage is calculated as a voltage difference.
And under the condition that the voltage difference is smaller than or equal to a preset threshold value, adjusting the first target voltage transmitted to the first transistor corresponding to the first power adapter or adjusting the second target voltage transmitted to the second transistor corresponding to the second power adapter, so that the first power adapter and the second power adapter supply power simultaneously. Wherein the preset threshold is determined based on attribute information of the first transistor or the second transistor.
For example, the first power supply voltage provided by the first power adapter is 20.5V, the second power supply voltage provided by the second power adapter is 20.7V, the voltage difference between the first power supply voltage provided by the first power adapter and the second power supply voltage provided by the second power adapter is 0.2V, the voltage difference is 0.2V smaller than a preset threshold value, at this time, the first transistor and the second transistor are controlled to be both on, and the voltage transmitted to the second target voltage is adjusted so that the difference between the voltage of the second transistor and the voltage of the first transistor is 0.2V, and therefore the voltages provided by the first power adapter and the second power adapter are the same, that is, the first power adapter and the second power adapter can supply power to a load at the same time.
In yet another example, if the voltage difference between the first power supply voltage provided by the first power supply adapter and the second power supply voltage provided by the second power supply adapter is greater than a preset threshold, transmitting the first target voltage to a transistor corresponding to the power supply adapter with the large power supply voltage, so that the transistor corresponding to the power supply adapter with the large power supply voltage is turned on to control the power supply adapter with the large power supply voltage to supply power; and
the second target voltage is transmitted to the transistor corresponding to the power adapter with small power supply voltage, so that the transistor corresponding to the power adapter with small power supply voltage is disconnected to control the power adapter with small power supply voltage to stop supplying power, and further reverse current is prevented from being generated in a power supply circuit where the power adapter with small power supply voltage is located, namely, the power adapter with small power supply voltage is prevented from being damaged, and the energy loss of the power adapter with large power supply voltage is prevented, the safety of equipment is guaranteed, and the energy loss is prevented.
For example, the first power supply voltage provided by the first power supply adapter is 15V, the second power supply voltage provided by the second power supply adapter is 20V, the voltage difference between the first power supply voltage provided by the first power supply adapter and the second power supply voltage provided by the second power supply adapter is 5V, the voltage difference is greater than a preset threshold, at this time, the second target voltage is transmitted to the transistor corresponding to the power supply adapter with the small power supply voltage, so that the transistor corresponding to the power supply adapter with the small power supply voltage is disconnected, that is, the power supply adapter with the small power supply voltage is controlled to stop supplying power to the load; meanwhile, the first target voltage is transmitted to a transistor corresponding to the power adapter with large power supply voltage, so that the transistor corresponding to the power adapter with large power supply voltage is conducted, and the power adapter with large power supply voltage is controlled to supply power to a load. At the moment, the transistor corresponding to the power adapter with small power supply voltage can block the voltage provided by the power adapter with large power supply voltage from being transmitted to the power adapter with small power supply voltage, so that reverse current is prevented from being generated in the power supply circuit where the power adapter with small power supply voltage is located, and the safety of the power adapter with small power supply voltage is ensured; meanwhile, the voltage provided by the power adapter with large power supply voltage can be ensured to be transmitted to the load, and the energy loss of the power adapter with large power supply voltage is avoided.
In practical application, there is a situation that the power adapter with large power supply voltage no longer provides voltage, and at this time, the monitoring voltage corresponding to the power adapter with large power supply voltage is zero. Further, when the monitored voltage corresponding to the power adapter with the large power supply voltage is zero, the transmission of the first target voltage to the transistor corresponding to the power adapter with the large power supply voltage is stopped, and then the transistor corresponding to the power adapter with the large power supply voltage is disconnected, namely the power adapter with the large power supply voltage is controlled to stop supplying power to the load. Meanwhile, the third target voltage is transmitted to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is turned on, namely, the power adapter with the small power supply voltage is controlled to supply power. The power supply vacuum period can not be generated in the process, and the situation that the load is blocked or power is off is avoided.
When the transistor corresponding to the power adapter having the smaller power supply voltage is the same as the transistor corresponding to the power adapter having the larger power supply voltage, the third target voltage is the same as the first target voltage.
In the embodiment of the application, when a plurality of power adapters are determined to be connected, the target voltage transmitted to the transistor corresponding to each power adapter is adjusted based on the power supply information of each power adapter so as to control at least one power adapter to supply power, namely, the power adapters can be simultaneously supplied by adjusting the target voltage transmitted to the transistor, and the power supply vacuum period can not be generated when the power adapters are switched, so that the situation that a load is blocked or power is cut off is avoided, the safety of the power adapters is ensured, and the energy loss of the power adapters is avoided.
Based on the same inventive concept, the second aspect of the present application also provides a power supply control system corresponding to the power supply control method, and since the principle of solving the problem of the power supply control system in the present application is similar to that of the power supply control method in the present application, the implementation of the power supply control system can refer to the implementation of the method, and the repetition is omitted.
Referring to the schematic structural diagram of the power supply control system shown in fig. 2, the power supply control system includes a control circuit 1 and a plurality of adjustment circuits 2, each of the adjustment circuits 2 is connected to the control circuit 1, and the adjustment circuits 2 include a transistor 21, a feedback circuit 22, and a feedback resistor 23;
the control circuit 1 is used for acquiring power supply information of each power adapter when a plurality of power adapters are determined to be connected; based on the power supply information, adjusting a target voltage transmitted to a transistor 21 corresponding to the power adapter to control at least one power adapter to supply power;
wherein, the gate of the transistor 21 is connected with the control circuit 1 to receive the target voltage transmitted by the control circuit 1.
In another embodiment, the control circuit 1 is further configured to monitor the monitored voltage of the target monitoring point in real time; when the monitoring voltage is monitored to be non-zero value, the interface corresponding to the target monitoring point is determined to be connected with a power adapter.
In another embodiment, the control circuit 1 is further configured to:
acquiring a supply current of a feedback circuit 22 connected with the power adapter;
the power supply information is obtained based on the power supply current.
In another embodiment, the control circuit 1 is further configured to:
determining the power supply current as the power supply information; or (b)
Determining a resistance value of a feedback resistor 23 connected in parallel with the feedback circuit 22, and determining a supply voltage and the supply current determined by the resistance value and the supply current as the supply information; or (b)
A resistance value of a feedback resistor 23 connected in parallel with the feedback circuit 22 is determined, a supply voltage is determined based on the resistance value and the supply current, a supply power is determined based on the supply current and the supply voltage, and the supply current, the supply voltage, and the supply power are determined as the supply information.
In another embodiment, the control circuit 1 is further configured to:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
when the voltage difference is smaller than or equal to a preset threshold value, adjusting a first target voltage transmitted to a first transistor corresponding to the first power adapter or adjusting a second target voltage transmitted to a second transistor corresponding to the second power adapter, so that the first power adapter and the second power adapter supply power simultaneously;
wherein the preset threshold is determined based on attribute information of the first transistor or the second transistor.
In another embodiment, the control circuit 1 is further configured to:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
transmitting a first target voltage to a transistor corresponding to a power adapter with large power supply voltage under the condition that the voltage difference is larger than a preset threshold value, so that the transistor corresponding to the power adapter with large power supply voltage is conducted to control the power adapter with large power supply voltage to supply power; and
and transmitting the second target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is disconnected, and the power supply of the power adapter with the small power supply voltage is controlled to stop.
In another embodiment, the control circuit 1 is further configured to:
stopping transmitting the first target voltage to a transistor corresponding to the power adapter with large power supply voltage under the condition that the monitored voltage corresponding to the power adapter with large power supply voltage is zero;
and transmitting the third target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is conducted to control the power adapter with the small power supply voltage to supply power.
The third aspect of the present application also provides an electronic device, comprising a power supply control system as described above and a load, the power supply control system being used for supplying power to the load.
The storage medium of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present application, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in the present application is not limited to the specific combinations of technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the spirit of the disclosure. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Moreover, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the application. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.
While various embodiments of the present application have been described in detail above, the present application is not limited to these specific embodiments, and those skilled in the art can make various variations and modifications embodiments on the basis of the inventive concept, and these variations and modifications should fall within the scope of the present application as claimed.

Claims (9)

1. A power supply control method, characterized by being applied to a control circuit, comprising:
acquiring power supply information of each power adapter under the condition that a plurality of power adapters are determined to be connected;
adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information so as to control at least one power adapter to supply power;
the grid electrode of the transistor is connected with the control circuit so as to receive the target voltage transmitted by the control circuit;
the adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information to control at least one power adapter to supply power comprises the following steps:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
transmitting a first target voltage to a transistor corresponding to a power adapter with large power supply voltage under the condition that the voltage difference is larger than a preset threshold value, so that the transistor corresponding to the power adapter with large power supply voltage is conducted to control the power adapter with large power supply voltage to supply power; and
and transmitting the second target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is disconnected, and the power supply of the power adapter with the small power supply voltage is controlled to stop.
2. The power supply control method according to claim 1, characterized by further comprising:
monitoring voltage of a target monitoring point is monitored in real time;
and under the condition that the monitoring voltage is monitored to be non-zero, determining that the interface corresponding to the target monitoring point is connected with a power adapter.
3. The power supply control method according to claim 1, wherein the acquiring power supply information of each of the power adapters includes:
acquiring a power supply current of a feedback circuit connected with the power adapter;
the power supply information is obtained based on the power supply current.
4. The power supply control method according to claim 3, characterized in that the obtaining the power supply information based on the power supply current includes:
determining the power supply current as the power supply information; or (b)
Determining the resistance of a feedback resistor connected in parallel with the feedback circuit, and determining the power supply voltage and the power supply current determined by the resistance and the power supply current as the power supply information; or (b)
And determining a resistance value of a feedback resistor connected in parallel with the feedback circuit, determining a supply voltage based on the resistance value and the supply current, determining a supply power based on the supply current and the supply voltage, and determining the supply current, the supply voltage and the supply power as the supply information.
5. The power supply control method according to claim 1, wherein adjusting the target voltage to be transmitted to the transistor corresponding to the power adapter based on the power supply information to control at least one power adapter to supply power, comprises:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
when the voltage difference is smaller than or equal to a preset threshold value, adjusting a first target voltage transmitted to a first transistor corresponding to the first power adapter or adjusting a second target voltage transmitted to a second transistor corresponding to the second power adapter, so that the first power adapter and the second power adapter supply power simultaneously;
wherein the preset threshold is determined based on attribute information of the first transistor or the second transistor.
6. The power supply control method according to claim 1, characterized by further comprising:
stopping transmitting the first target voltage to a transistor corresponding to the power adapter with large power supply voltage under the condition that the monitored voltage corresponding to the power adapter with large power supply voltage is zero;
and transmitting the third target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is conducted to control the power adapter with the small power supply voltage to supply power.
7. The power supply control system is characterized by comprising a control circuit and a plurality of adjusting circuits, wherein each adjusting circuit is connected with the control circuit and comprises a transistor, a feedback circuit and a feedback resistor;
the control circuit is used for acquiring power supply information of each power adapter when a plurality of power adapters are determined to be connected; adjusting the target voltage transmitted to the transistor corresponding to the power adapter based on the power supply information so as to control at least one power adapter to supply power;
the grid electrode of the transistor is connected with the control circuit so as to receive the target voltage transmitted by the control circuit;
the control circuit is further configured to:
determining a voltage difference between a first power supply voltage provided by a first power adapter and a second power supply voltage provided by a second power adapter based on first power supply information corresponding to the first power adapter and second power supply information corresponding to the second power adapter;
transmitting a first target voltage to a transistor corresponding to a power adapter with large power supply voltage under the condition that the voltage difference is larger than a preset threshold value, so that the transistor corresponding to the power adapter with large power supply voltage is conducted to control the power adapter with large power supply voltage to supply power; and
and transmitting the second target voltage to a transistor corresponding to the power adapter with the small power supply voltage, so that the transistor corresponding to the power adapter with the small power supply voltage is disconnected, and the power supply of the power adapter with the small power supply voltage is controlled to stop.
8. The power supply control system of claim 7, wherein,
the control circuit is also used for monitoring the monitoring voltage of the target monitoring point in real time; when the monitoring voltage is monitored to be non-zero value, the interface corresponding to the target monitoring point is determined to be connected with a power adapter.
9. An electronic device comprising a power supply control system as claimed in claim 7 or 8 and a load, the load being supplied with power by the power supply control system.
CN202311040198.1A 2023-08-18 2023-08-18 Power supply control method and system and electronic equipment Active CN116780723B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311040198.1A CN116780723B (en) 2023-08-18 2023-08-18 Power supply control method and system and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311040198.1A CN116780723B (en) 2023-08-18 2023-08-18 Power supply control method and system and electronic equipment

Publications (2)

Publication Number Publication Date
CN116780723A CN116780723A (en) 2023-09-19
CN116780723B true CN116780723B (en) 2023-11-28

Family

ID=88011907

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311040198.1A Active CN116780723B (en) 2023-08-18 2023-08-18 Power supply control method and system and electronic equipment

Country Status (1)

Country Link
CN (1) CN116780723B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102694461A (en) * 2011-03-23 2012-09-26 建碁股份有限公司 Power supply management device
CN106972558A (en) * 2017-03-27 2017-07-21 联想(北京)有限公司 A kind of charge control method and electronic equipment
CN112332515A (en) * 2020-10-29 2021-02-05 西安易朴通讯技术有限公司 Power supply device, computer equipment and power supply system of computer equipment
CN112711320A (en) * 2021-01-06 2021-04-27 珠海格力电器股份有限公司 Power switching system and method, computer readable storage medium and processor
CN112769225A (en) * 2021-04-12 2021-05-07 深圳市爱图仕影像器材有限公司 Lighting device, power supply switching circuit and power supply switching method of lighting device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8405361B2 (en) * 2007-09-21 2013-03-26 Qualcomm Incorporated System and method for charging a rechargeable battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102694461A (en) * 2011-03-23 2012-09-26 建碁股份有限公司 Power supply management device
CN106972558A (en) * 2017-03-27 2017-07-21 联想(北京)有限公司 A kind of charge control method and electronic equipment
CN112332515A (en) * 2020-10-29 2021-02-05 西安易朴通讯技术有限公司 Power supply device, computer equipment and power supply system of computer equipment
CN112711320A (en) * 2021-01-06 2021-04-27 珠海格力电器股份有限公司 Power switching system and method, computer readable storage medium and processor
CN112769225A (en) * 2021-04-12 2021-05-07 深圳市爱图仕影像器材有限公司 Lighting device, power supply switching circuit and power supply switching method of lighting device

Also Published As

Publication number Publication date
CN116780723A (en) 2023-09-19

Similar Documents

Publication Publication Date Title
US10177561B2 (en) Selective protection circuit and method, and power supply system
US9640989B2 (en) Powered device controllers having shared connection interfaces and two-level inrush current limit
US8161310B2 (en) Extending and scavenging super-capacitor capacity
US9853444B2 (en) Hot plug device providing turn on FETs with a softstart capability
US20170237285A1 (en) System and method for achieving controlled load transition between power supplies and battery backup units
KR20160014280A (en) Battery pack prividing different kind power source and charging method thereof
EP3002658A1 (en) Power supply interface
CN102237712B (en) Multi-power system and power failure processing method
CN116780723B (en) Power supply control method and system and electronic equipment
CN114421585A (en) Parallel power supply system control method, device, equipment and storage medium
US9442545B2 (en) Server system and controlling method for operation timing after being powered up
EP3258341A1 (en) Single event latchup mitigation in solid state power controllers
CN105549708A (en) Power supply method and first electronic equipment
US10326436B2 (en) Hot swap controller with multiple current limits
US7190267B2 (en) System and method for managing power control and data communication among devices
CN114069547A (en) Power distribution circuit, vehicle body controller, vehicle and power distribution control method thereof
KR101784407B1 (en) Apparatus for stabilizing a power source of optical modem
CN110780619B (en) Circuit control method, device and equipment
KR101515474B1 (en) Automatic load transfer switch
US9575530B2 (en) Board, communications device, and method for supplying power for board
TW201023479A (en) Loop apparatus and method with low voltage and dual power
CN104656478A (en) Control circuit and control method for multi-power-supply module
CN113612214B (en) Device and method for safely and compatibly realizing multiple power supply modules
CN104199752A (en) Failure recovery circuit and device
CN113381500B (en) Power switching method, device and system and electronic equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant