CN115173548A - Power supply switching circuit, system and method of electronic equipment - Google Patents
Power supply switching circuit, system and method of electronic equipment Download PDFInfo
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- CN115173548A CN115173548A CN202210879374.XA CN202210879374A CN115173548A CN 115173548 A CN115173548 A CN 115173548A CN 202210879374 A CN202210879374 A CN 202210879374A CN 115173548 A CN115173548 A CN 115173548A
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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
- 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
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- 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
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
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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
- 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
- H02J9/061—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 for DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The present disclosure relates to the field of power supply technologies, and in particular, to a power supply switching circuit, a power supply switching system, and a power supply switching method for an electronic device. Wherein, electronic equipment's power supply switching circuit includes: the temperature detection component, the controller and the change-over switch circuit are respectively and electrically connected with the temperature detection component and the change-over switch circuit; the temperature detection component is arranged close to the preset power supply line and used for detecting the temperature of the preset power supply line to generate a temperature signal; the preset power supply circuit is a power supply circuit of a preset component in the electronic equipment; the controller is used for outputting a switching control signal according to the temperature signal, and the switching circuit is used for controlling the switching state of the switching circuit according to the switching control signal, so that the power adapter or the battery supplies power to the preset component through the preset power supply line. According to the technical scheme, the power consumption and the temperature of the preset power supply line can be reduced, the operation performance of the electronic equipment can be improved, and therefore the use experience of a user is improved.
Description
Technical Field
The present disclosure relates to the field of power supply technologies, and in particular, to a power supply switching circuit, a power supply switching system, and a power supply switching method for an electronic device.
Background
With the development of various software programs in electronic devices, the operation response speed of electronic devices, such as but not limited to a Central Processing Unit (CPU) and a Graphics Processing Unit (DGPU) in a notebook computer, is also greatly increased. In order to improve the performance of the CPU and DGPU chips, researchers have increasingly integrated more transistors per unit area of the CPU chip and DGPU chip, which results in increasing the power consumption of the CPU and DGPU chips. When an electronic device such as a notebook computer is connected to a power adapter to run a heavy-load program, a power supply line for supplying power to a CPU and a DGPU has high power consumption, so that high heat is generated, and overhigh temperature of the power supply line is easily caused.
In order to solve the problem that the temperature is too high due to too high power consumption in a power supply line, an engineer can effectively dissipate heat of elements inside an electronic device such as a notebook computer by arranging a heat conduction pipe and a heat dissipation copper sheet and increasing the size of a fan, but the heat dissipation fan can occupy the limited space inside the notebook computer, increase the design difficulty, and simultaneously improve the design cost and increase the weight of the notebook computer. Through the rotational speed that promotes the fan, be favorable to accelerating the circulation of the inside air of notebook computer, reduce the temperature through accelerating heat exchange, nevertheless can produce great fan noise, and then influence user's use and experience and feel.
Disclosure of Invention
Based on this, in order to solve the above technical problems, the present application provides a power supply switching circuit, a power supply switching system, and a power supply switching method for an electronic device, which can reduce the loss of components in a preset power supply line, and further reduce the power consumption and temperature of the preset power supply line, and are beneficial to improving the operation performance of the electronic device, thereby improving the user experience.
In a first aspect, an embodiment of the present application provides a power supply switching circuit of an electronic device, including:
the temperature detection device comprises a temperature detection component, a controller and a change-over switch circuit, wherein the controller is electrically connected with the temperature detection component and the change-over switch circuit respectively;
the temperature detection component is arranged close to a preset power supply line and used for detecting the temperature of the preset power supply line to generate a temperature signal; the preset power supply circuit is a power supply circuit of a preset component in the electronic equipment;
the controller is used for outputting a switching control signal according to the temperature signal, and the switching switch circuit is used for controlling the switching state of the switching switch circuit according to the switching control signal so as to enable a power adapter or a battery to supply power to the preset component through the preset power supply line.
In some embodiments, the switch circuit comprises:
the selector switch modules are electrically connected with the preset power supply lines in a one-to-one correspondence manner; or the change-over switch module is correspondingly and electrically connected with all the preset power supply lines.
In some embodiments, the diverter switch module comprises:
a first end of the first switch is electrically connected with the power adapter, a second end of the first switch is electrically connected with the corresponding preset power supply line, and a control end of the first switch is connected with a first switching control signal;
and a first end of the second switch is electrically connected with the battery, a second end of the second switch is electrically connected with the corresponding preset power supply line, and a control end of the second switch is connected with a second switching control signal.
In some embodiments, the controller includes a first switch terminal directly connected to the switch circuit by a first wire and a second switch terminal directly connected to the switch circuit by a second wire.
In some embodiments, the power supply switching circuit of the electronic device further comprises:
the controller comprises a first switching end and a second switching end;
the first switching end is connected with the switching switch circuit through the first control switch, and the second switching end is connected with the switching switch circuit through the second control switch.
In some embodiments, the power supply switching circuit of the electronic device further comprises:
the electric quantity detection component is respectively electrically connected with the battery and the controller, the electric quantity detection component is used for detecting the residual electric quantity of the battery and generating an electric quantity signal, and the controller is used for outputting a switching control signal according to the temperature signal and the electric quantity signal.
In a second aspect, an embodiment of the present application further provides a power supply switching system for an electronic device, including any one of the power supply switching circuits provided in the first aspect, further including a power adapter, a battery, and a preset power supply line;
the power adapter, the battery and the preset power supply circuit are all electrically connected with the change-over switch circuit, and the preset power supply circuit is electrically connected with the preset component.
In a third aspect, an embodiment of the present application further provides a power supply switching method for an electronic device, which is implemented based on any one of the power supply switching circuits of the electronic device provided in the first aspect, and includes:
acquiring a temperature signal generated according to the temperature of a preset power supply line;
and controlling the switch switching state of the switching switch circuit according to the temperature signal so as to enable the power adapter or the battery to supply power to a preset component through the preset power supply line.
In some embodiments, the controlling the switching state of the switching circuit according to the temperature signal includes:
when the temperature of predetermineeing the power supply line is greater than when predetermineeing the temperature, control the switch switching state of change over switch circuit, so that the battery passes through predetermine the power supply line way predetermine the part power supply, wherein temperature signal contains predetermine the temperature information of power supply line.
In some embodiments, the power supply switching circuit includes a power amount detection component, and the power supply switching method of the electronic device further includes:
acquiring the residual electric quantity of the battery;
when the residual electric quantity is judged to be smaller than the preset electric quantity, the switch switching state of the switch switching circuit is controlled, so that the power adapter supplies power to the preset component through the preset power supply circuit.
The power supply switching circuit of the electronic equipment provided by the embodiment of the application is through setting up the temperature detection part, and the temperature detection part is close to and predetermines the power supply line setting and be used for detecting the temperature of predetermineeing the power supply line, and generates temperature signal, and further, this temperature signal transmission to controller, this temperature signal is received to the controller. The temperature signal comprises temperature information of a preset power supply line, and the controller can acquire the temperature of the preset power supply line according to the received temperature signal. Further, the controller judges whether the power consumption of the preset power supply line is too large based on the temperature of the preset power supply line, then generates a switching control signal, transmits the switching control signal to the switch circuit, and the switch circuit switches the preset power supply line to be connected to the power adapter or the battery according to the received switching control signal. Therefore, when the electronic equipment is connected with the power adapter to run the heavy-load program, when the temperature of the preset power supply line corresponding to the preset component such as the CPU is detected to be too high, the access voltage end of the preset power supply line is switched into a battery by the power adapter, the consumption of components in the preset power supply line can be reduced, the power consumption and the temperature of the preset power supply line are reduced, the running performance of the electronic equipment is improved, and the use experience of a user is improved.
Drawings
Fig. 1 is a schematic structural diagram of a power supply switching circuit of an electronic device according to an embodiment of the present disclosure;
FIG. 2 is a circuit diagram of an HPB architecture provided in the related art;
fig. 3 is a schematic structural diagram of a power supply switching circuit of another electronic device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a power supply switching circuit of another electronic device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a diverter switch module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a power supply switching circuit of another electronic device according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a power supply switching circuit of another electronic device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a power supply switching circuit of another electronic device according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of a power supply system of an electronic device according to an embodiment of the present application;
fig. 10 is a schematic flowchart of a power supply switching method of an electronic device according to an embodiment of the present disclosure;
fig. 11 is a schematic structural diagram of a power supply switching device of an electronic device according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
In the prior art, a power supply system of an electronic device such as a notebook computer adopts a Buck type Narrow output voltage direct current (NVDC) architecture, and because the first-order voltage conversion power of the NVDC architecture is too large, the power consumption of a power supply line is too high, and the temperature of the power supply line is too high.
To solve technical problems in the related art, an embodiment of the present application provides a power supply switching circuit of an electronic device. Fig. 1 is a schematic structural diagram of a power supply switching circuit of an electronic device according to an embodiment of the present disclosure. As shown in fig. 1, the power supply switching circuit includes a temperature detection part 10, a controller 11 and a switch circuit 12, and the controller 11 is electrically connected to the temperature detection part 10 and the switch circuit 12, respectively; the temperature detection part 10 is arranged adjacent to the preset power supply line 13 and is used for detecting the temperature of the preset power supply line 13 to generate a temperature signal; the preset power supply line 13 is a power supply line of a preset component in the electronic device; the controller 11 is configured to output a switching control signal according to the temperature signal, and the switch circuit 12 is configured to control a switching state of the switch circuit according to the switching control signal, so that the power adapter or the battery supplies power to the predetermined component through a predetermined power supply line 13.
Specifically, the controller 11 is electrically connected to the temperature detection part 10 and the changeover switch circuit 12, respectively, to enable the controller 11 to communicate with the temperature detection part 10, and the controller 11 to communicate with the changeover switch circuit 12. The temperature detecting component 10, such as but not limited to a temperature sensor, is disposed adjacent to a preset power supply line 13, wherein the preset power supply line 13 is a power supply line in an electronic device, and the preset power supply line 13 is electrically connected to a preset component, such as but not limited to a CPU, so as to supply power to the preset component through the preset power supply line 13. When the preset power supply line 13 supplies power to the preset component, the temperature of the preset power supply line 13 may be detected by the temperature detection component 10. The temperature of the preset power line 13 may reflect the power consumption of the preset power line 13, and if the temperature is higher, the temperature may reflect that the power of the preset power line 13 is larger, that is, the power consumption is too large, and the too large power consumption affects the operation performance of the electronic device, such as a notebook computer.
Thus, by providing the temperature detection means 10, the temperature of the preset power supply line 13 is detected by the temperature detection means 10 and a temperature signal is generated, and further, the temperature signal is transmitted to the controller 11, and the controller 11 receives the temperature signal. The temperature signal includes temperature information of the preset power supply line 13, and the controller 11 can obtain the temperature of the preset power supply line 13 according to the received temperature signal. Further, the controller 11 determines whether the power consumption of the preset power supply line 13 is too large based on the temperature of the preset power supply line 13, and then generates a switching control signal, and transmits the switching control signal to the switch circuit 12, and the switch circuit 12 switches the preset power supply line 13 to access the power adapter or the battery according to the received switching control signal.
Illustratively, when the electronic device, such as a notebook computer, is just in an operating state, the temperature detecting component 10 detects that the temperature of the preset power supply line 13 is low, and the default selector circuit 12 may control the preset power supply line 13 to access the power adapter, so that on one hand, the preset component may be powered by the power adapter, and on the other hand, a battery equipped for the electronic device may be charged. After the electronic device is connected to the power adapter, when a preset component, such as a CPU, runs a heavy-duty program, the temperature of the preset power supply line 13 is detected by the temperature detection component 10, if the detected temperature of the preset power supply line 13 is too high, for example, the temperature exceeds a set temperature threshold, it can be determined that the power consumption of the preset power supply line 13 is too large at this time, the controller 11 generates a switching control signal, and the switching circuit 12 switches the preset power supply line 13 to be connected to a battery according to the received switching control signal, that is, the power adapter is switched to the battery, so that the battery provides input voltage for the preset power supply line 13, and the battery supplies power to the preset component through the preset power supply line 13.
The preset power supply line is a Buck Converter (Buck) voltage conversion line, and for the Buck voltage conversion line, when a difference value between an input voltage and an output voltage of the Buck Converter is larger, component loss of the preset power supply line 13 is larger, so that power consumption and temperature of the preset power supply line 13 are larger; however, when the difference between the input voltage and the output voltage is smaller, the voltage conversion efficiency is higher, which can reduce the power consumption and temperature of the preset power supply line 13, and is beneficial to improving the operation performance of the electronic device.
Specifically, when the power adapter is connected to the preset power supply line 13, the dc output voltage of the power adapter is the input voltage of the preset power supply line 13; when the battery is connected to the preset power supply line 13, the voltage of the battery is the input voltage of the preset power supply line 13. However, the voltage of the battery is lower than the output voltage of the power adapter, so the input voltage when the preset power supply line 13 is connected to the battery is lower than the input voltage when the preset power supply line 13 is connected to the power adapter. For the same preset component for power supply, the output voltage when the preset power supply line 13 is connected to the battery is the same as the output voltage when the preset power supply line 13 is connected to the power adapter, so that the difference value between the input voltage and the output voltage is larger when the preset power supply line 13 is connected to the power adapter, and further, the loss of components of the voltage conversion line is larger; when the preset power supply line 13 is connected to a battery, the difference value between the input voltage and the output voltage is small, so that the voltage conversion efficiency can be improved, and the loss of components of the voltage conversion line is reduced; namely, the lower the input voltage is, the smaller the loss of the components of the voltage conversion circuit is, which is beneficial to reducing the power consumption and temperature of the preset power supply line 13.
It should be noted that the Power supply switching circuit provided in the embodiment of the present application adopts a Hybrid Power BOOST (HPB) architecture. Exemplarily, fig. 2 is a circuit schematic diagram of an HPB architecture provided in the related art. As shown in fig. 2, after the power adapter is connected to the circuit, the switch Q1 and the switch Q2 are turned on, the system is powered by the output voltage of the power adapter, and the battery is charged through the Buck line, and the battery is not normally discharged under the condition that the power adapter is connected, so the battery voltage is lower than the output voltage of the power adapter; when the power adapter connection is disconnected, the switch Q3 is opened to supply power to the system through the battery output voltage. When the power adapter is connected, for all power supply lines in the electronic equipment system, the input voltage is the direct current output voltage of the power adapter; when the power adapter is disconnected, the battery supplies power, and the input voltage of the system is the battery voltage; the battery voltage is less than the output voltage of the adapter.
Therefore, a Hybrid Power BOOST (HPB) architecture is applied to the Power supply switching circuit provided by the embodiment of the application, and when an access voltage end of a preset Power supply line is switched into a battery by a Power adapter, the difference between the input voltage and the output voltage of the preset Power supply line is favorably reduced, so that the consumption of components of a voltage conversion line can be reduced, and the Power consumption and the temperature of the preset Power supply line are favorably reduced.
The power supply switching circuit of the electronic equipment provided by the embodiment of the application is through setting up the temperature detection part, and the temperature detection part is close to and predetermines the power supply line setting and be used for detecting the temperature of predetermineeing the power supply line, and generates temperature signal, and further, this temperature signal transmission to controller, this temperature signal is received to the controller. The temperature signal comprises temperature information of a preset power supply line, and the controller can acquire the temperature of the preset power supply line according to the received temperature signal. Further, the controller judges whether the power consumption of the preset power supply line is too large based on the temperature of the preset power supply line, so that a switching control signal is generated and transmitted to the switching circuit, and the switching circuit switches the preset power supply line to be connected to the power adapter or the battery according to the received switching control signal. Therefore, when the electronic equipment is connected with the power adapter to run the heavy-load program, when the temperature of the preset power supply line corresponding to the preset component such as the CPU is detected to be too high, the access voltage end of the preset power supply line is switched into a battery by the power adapter, the consumption of components in the preset power supply line can be reduced, the power consumption and the temperature of the preset power supply line are reduced, the running performance of the electronic equipment is improved, and the use experience of a user is improved.
In some embodiments, fig. 3 is a schematic structural diagram of a power supply switching circuit of another electronic device provided in this application. On the basis of the structure shown in fig. 1, as shown in fig. 3, the change-over switch circuit 12 includes a plurality of change-over switch modules 14, and the change-over switch modules 14 are arranged in one-to-one correspondence with the preset power supply lines 13. In fig. 3, two selector switch modules 14 are shown by way of example, and correspondingly two preset supply lines 13 are shown.
Specifically, the change-over switch circuit 12 includes a first change-over switch module 141 and a second change-over switch module 142, and the controller 11 is electrically connected to the first change-over switch module 141 and the second change-over switch module 142, respectively. The preset power supply line 13 includes a first preset power supply line 131 and a second preset power supply line 132, the first switch module 141 is electrically connected to the first preset power supply line 131, and the second switch module 142 is electrically connected to the second preset power supply line 132, so that the controller 11 switches the first preset power supply line 131 to access the power adapter or the battery by controlling the first switch module 141, and the controller 11 switches the second preset power supply line 132 to access the power adapter or the battery by controlling the second switch module 142.
The two temperature detection components 10 are correspondingly arranged for two preset power supply lines 13 and comprise a first temperature detection component 101 and a second temperature detection component 102, the first temperature detection component 101 is used for detecting the temperature of a first preset power supply line 131, the second temperature detection component 102 is used for detecting the temperature of a second preset power supply line 132, and the preset power supply lines 13, the temperature detection components 10 and the first switch modules 14 are arranged in a one-to-one correspondence manner.
It should be noted that the change-over switch circuit 12 may also be configured to include three or more change-over switch modules, and accordingly, three or more preset power supply lines 13 and the temperature detection means 10 are provided.
In some embodiments, fig. 4 is a schematic structural diagram of a power supply switching circuit of another electronic device provided in this application. On the basis of the structure shown in fig. 1, as shown in fig. 4, the change-over switch circuit 12 includes one change-over switch module 14, the change-over switch module 14 is disposed corresponding to all the preset power supply lines 13, and fig. 4 exemplarily shows two preset power supply lines 13.
Specifically, the change-over switch circuit 12 includes a change-over switch module 14, the change-over switch module 14 is electrically connected to the first preset power supply line 131 and the second preset power supply line 132 respectively, and the controller 11 is electrically connected to the change-over switch module 14, so that the controller 11 controls the change-over switch module 14 to switch the power adapter or the battery to be connected to the first preset power supply line 131 and switch the power adapter or the battery to be connected to the second preset power supply line 132. Two temperature detection components 10 are correspondingly arranged for two preset power supply lines 13, and each temperature detection component comprises a first temperature detection component 101 and a second temperature detection component 102, wherein the first temperature detection component 101 is used for detecting the temperature of a first preset power supply line 131, and the second temperature detection component 102 is used for detecting the temperature of a second preset power supply line 132.
Fig. 4 differs from fig. 3 in that: fig. 3 shows that a corresponding change-over switch module 14 is provided for each preset power supply line 13, that is, the preset power supply lines 13 and the change-over switch modules 14 are provided in a one-to-one correspondence; while fig. 4 is provided with one change-over switch module 14 for all the preset power supply lines 13, it can be understood that fig. 4 integrates a plurality of change-over switch modules in fig. 3 into one change-over switch module, thereby facilitating the simplification of the route and further reducing the design cost.
Thus, in conjunction with fig. 3 and 4, the temperature detection sections 10 are provided in one-to-one correspondence with respect to the preset power supply lines 13, where each preset power supply line 13 serves as a line for supplying power to the corresponding preset section. When an electronic device such as a notebook computer runs different programs, different preset components such as a CPU, a DGPU, and the like need to be started, and the loads of the preset power supply lines 13 of the different preset components are different. Exemplarily, when some programs run, a CPU needs to be called to perform a large amount of calculation, the load of the preset power supply line 13 corresponding to the CPU is very high, and the load of the power supply line corresponding to the DGPU is very low without calling the DGPU to perform image processing; when some programs run, DGPU needs to be called for image processing, the load of the power supply circuit corresponding to the DGPU is very high, and the load of the power supply circuit corresponding to the CPU is very low when a CPU does not need to be called for large-scale calculation. Therefore, a user can detect the real-time temperature of each group of preset power supply lines when the electronic equipment is in different use scenes, and selectively adjust the input voltage of the preset power supply lines of different preset components, such as the voltage of a battery, so that the temperature of the preset power supply lines of the electronic equipment can be optimized, and the electronic equipment is safe and reliable.
In addition, after the input voltage of the preset power supply line is switched to the battery voltage, the auxiliary discharge of the battery enables the power adapter to save power consumption which can be supplied to other preset parts, and the improvement of the performance of the whole electronic equipment system is facilitated. For example, after the input voltage of the power supply circuit corresponding to the CPU is switched to the battery voltage, the energy consumption supplied to the CPU by the original power adapter can be saved and supplied to the DGPU, and the computing capability of the DGPU can be improved.
In some embodiments, fig. 5 is a schematic structural diagram of a switch module provided in this application. With reference to fig. 3 and 5, or with reference to fig. 4 and 5, the change-over switch module 14 includes a first switch 15, a first end of the first switch 15 is electrically connected to the power adapter, a second end of the first switch 15 is electrically connected to the corresponding preset power supply line 13, and a control end of the first switch 15 is connected to the first switching control signal T1; and a first end of the second switch 16 is electrically connected with the battery, a second end of the second switch 16 is electrically connected with the corresponding preset power supply line 13, and a control end of the second switch is connected to the second switching control signal T2.
In particular, the diverter switch module 14 may be provided to include a first switch 15 and a second switch 16. A first end of the first switch 15 is connected to the power adapter, that is, connected to the input voltage VIN1, a second end of the first switch 15 is connected to the preset power supply line 13, and a control end of the first switch 15 is connected to the first switching control signal T1; a first end of the second switch 16 is connected to the Battery, that is, the input voltage VIN2, a second end of the second switch 16 is connected to the preset power supply line 13, and a control end of the second switch 16 is connected to the second switching control signal T2.
Specifically, when the controller 11 generates the first switching control signal T1, and correspondingly the control end of the first switch 15 is connected to the first switching control signal T1, when the first switch 15 is controlled to be closed according to the temperature detection result, the electrical connection line between the power adapter and the preset power supply line 13 is conducted, so that the preset power supply line 13 is connected to the power adapter; when the controller 11 generates the second switching control signal T2, the control terminal of the second switch 16 correspondingly accesses the second switching control signal T2, and when the second switch 16 is controlled to be closed according to the temperature detection result, the electrical connection line between the battery and the preset power supply line 13 is conducted, so that the preset power supply line 13 accesses the battery.
The first switch 15 and the second switch 16 may be configured as an N-channel Metal Oxide Semiconductor (NMOS) transistor or a P-channel Metal Oxide Semiconductor (PMOS) transistor.
In some embodiments, fig. 6 is a schematic structural diagram of a power supply switching circuit of another electronic device provided in this application. As shown in fig. 6, the controller 11 includes a first switching terminal a directly connected to the switching circuit 12 through a first wire 17, and a second switching terminal B directly connected to the switching circuit 12 through a second wire 18.
Specifically, the controller 11 includes a first switching end a, the first switching end a is electrically connected to a control end of a first switch 15 in the switch circuit 12 through a first wire 17, the first switching end a controls to output a first switching control signal T1, and the first switching control signal T1 is transmitted to the control end of the first switch 15 through the first wire to control the first switch 15 to be turned on or turned off, so as to control whether the corresponding preset power supply line 13 is connected to the power adapter. The controller 11 further includes a second switching terminal B, the second switching terminal B is electrically connected to a control terminal of a second switch 16 in the switch circuit 12 through a second wire 18, the second switching terminal B controls to output a second switching control signal T2, and the second switching control signal T2 is transmitted to the control terminal of the second switch 16 through the second wire 18 to control the second switch 16 to be turned on or turned off, so as to control whether the corresponding preset power supply line 13 is connected to the battery.
The first switching end A is directly connected with the switching switch circuit 12 through the first lead 17, the second switching end B is directly connected with the switching switch circuit 12 through the second lead 18, and the controller can adjust the level of switching signals output by the first switching end A and the second switching end B according to a temperature detection result so as to be switched on or switched off through a switch, for example, a grid control switch of a transistor, and the control structure is simple. When the first switch 15 is closed, the second switch 16 is controlled to be turned off, and when the second switch 16 is closed, the first switch 15 is controlled to be turned off.
In some embodiments, fig. 7 is a schematic structural diagram of a power supply switching circuit of another electronic device provided in the embodiments of the present application. As shown in fig. 7, the controller 11 further comprises a first control switch 19 and a second control switch 20, and the controller 11 comprises a first switching terminal a and a second switching terminal B; the first switching terminal a is connected to the switching circuit 12 via a first control switch 19, and the second switching terminal B is connected to the switching circuit 12 via a second control switch 20.
Specifically, a first control switch 19 is arranged in a connection line between the first switching end a and the control end of the first switch 15, the connection line between the first switching end a and the control end of the first switch 15 is turned on by controlling the first control switch 19 to be closed, a first switching control signal T1 output by the first switching end a is transmitted to the control end of the first switch 15, the first switch 15 is controlled to be closed or opened, and whether the power supply line 13 is connected to the power adapter is preset; a second control switch 20 is arranged in a connection line between the second switching end B and the control end of the second switch 16, the connection line between the second switching end B and the control end of the second switch 16 is switched on by controlling the second control switch 20 to be closed, a second switching control signal T2 controlled and output by the second switching end B is transmitted to the control end of the second switch 16, the second switch 16 is controlled to be closed or opened, and whether the preset power supply line 13 is connected to the battery is further realized.
Taking the structure shown in fig. 7 as an example, the CPU (predetermined component) is powered by a predetermined power supply line 13. When the temperature of the preset power supply line is higher, the controller 11 sends out a second switching control signal T2, the first control switch 19 is firstly switched off, the first switch 15 is switched off, the voltage of the power adapter is cut off, at the moment of switching, the battery is switched on in the forward direction through a parasitic diode of the second switch 16 to supply power, seamless switching of the voltage is guaranteed, the CPU power failure caused by switching of the input voltage of the preset power supply line is avoided, then the second control switch 20 is controlled to be switched on, the second switch 16 is switched on, and the input voltage of the CPU power supply line is formally switched to the battery voltage from the input voltage of the power adapter. When the electronic device finishes running the heavy load program or the battery power is insufficient, the input voltage of the preset power supply line 13 can be switched back to the input voltage of the power adapter at any time. The controller 11 sends out a first switching control signal T1, the second control switch 20 is turned off first, at this time, the battery voltage is conducted in the forward direction through the parasitic diode of the second switch 16 to supply power, then the first control switch 19 is turned on, the first switch 15 is conducted, the parasitic diode of the second switch 16 is turned off in the reverse direction, seamless switching is completed, and the input voltage of the CPU power supply line is switched from the battery voltage to the input voltage of the power adapter.
In some embodiments, fig. 8 is a schematic structural diagram of a power supply switching circuit of another electronic device provided in the embodiments of the present application. As shown in fig. 8, the power supply switching circuit further includes a power detecting part 21, the power detecting part 21 is electrically connected to the battery 22 and the controller 11, respectively, the power detecting part 21 is configured to detect a remaining power of the battery 22 and generate a power signal, and the controller 11 is configured to output a switching control signal according to the power signal.
Specifically, the power detection component 21 is arranged, when the battery 22 is connected to the preset power supply line 13 through the switch circuit 12, the remaining power of the battery 22 is detected through the power detection component 21, a power signal including information of the remaining power is generated, and the power signal is transmitted to the controller 11, so that the controller can acquire the remaining power of the battery 22, when the remaining power of the battery 22 is too low, for example, the remaining power of the battery 22 is lower than a preset power threshold, at this time, the controller 11 generates a switching control signal, and the input voltage for controlling the connection of the preset power supply line 13 is switched from the battery 22 to the power adapter. Specifically, in combination with the above, the controller 11 controls the first switching terminal a to output the first switching control signal T1 to be transmitted to the control terminal of the first switch 15, and controls the first switch 15 to be closed, so as to enable the preset power supply line 13 to access the power adapter.
On the basis of the foregoing embodiments, an embodiment of the present application further provides a schematic structural diagram of a power supply switching system of an electronic device. Fig. 9 is a schematic structural diagram of a power supply system of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 9, the power supply system of the electronic device includes a power supply switching circuit 30 of any one of the electronic devices provided in the foregoing embodiments, and further includes a power adapter 23, a battery 22, and a preset power supply line 13; the power adapter 23, the battery 22 and the preset power supply line 13 are all electrically connected to the switch circuit 12, and the preset power supply line 13 is electrically connected to the preset component, so that the same or similar beneficial effects are achieved, and further description is omitted.
Specifically, the power adapter 23 and the battery 22 are electrically connected to the switch circuit 12, and according to a switching control signal output by the switch circuit 12, the power adapter 23 is connected to the power adapter 23 through the preset power line 13, the power adapter 23 supplies power to the preset component through the preset power line 13, or the power adapter 22 is connected to the battery 13 through the preset power line 13, and the battery 22 supplies power to the preset component through the preset power line 13.
The embodiment of the application further provides a power supply switching method for electronic equipment, which is implemented based on the power supply switching circuit of any one of the electronic equipment provided in the above embodiments, and has the same or similar beneficial effects, and the details are not repeated herein.
Fig. 10 is a schematic flowchart of a power supply switching method of an electronic device according to an embodiment of the present application, where as shown in fig. 10, the power supply switching method includes:
s101, acquiring a temperature signal generated according to the temperature of a preset power supply line;
and S102, controlling the switch switching state of the switching switch circuit according to the temperature signal so as to enable the power adapter or the battery to supply power to the preset component through the preset power supply line.
Specifically, referring to fig. 1, a temperature detection part 10 is provided adjacent to a preset power supply line 13, the temperature of the preset power supply line is detected by the temperature detection part 10 and a temperature signal is generated, and further, the temperature signal is transmitted to a controller 11, and the controller 11 receives the temperature signal. The temperature signal includes temperature information of the preset power supply line 13, and the controller 11 can obtain the temperature of the preset power supply line 13. Further, the controller 11 generates a corresponding switching control signal based on the acquired temperature of the preset power supply line 13, and transmits the switching control signal to the switch circuit 12, and the switch circuit 12 switches the preset power supply line 13 to be connected to a power adapter or a battery according to the received switching control signal, so that the power adapter or the battery provides an input voltage for the preset power supply line 13, and the preset power supply line 13 supplies power to a preset component.
In some embodiments, controlling the switching state of the switcher circuit according to the temperature signal includes:
and when the temperature of the preset power supply line is higher than the preset temperature, controlling the switch switching state of the switching switch circuit so as to enable the battery to supply power to the preset component through the preset power supply line, wherein the temperature signal contains temperature information of the preset power supply line.
Specifically, with reference to fig. 1, based on the temperature signal obtained by the controller 11, the temperature of the preset power supply line 13 may be obtained, when it is determined that the temperature of the preset power supply line 13 is greater than the preset temperature, it may be determined that the power consumption of the preset power supply line 13 is too large, and the operation performance of the electronic device may be affected due to the too large power consumption, at this time, the controller 11 may generate a switching control signal and transmit the switching control signal to the switch circuit 12, and the switch circuit 12 switches the preset power supply line 13 to access the battery according to the received switching control signal, so that the battery provides the input voltage to the preset power supply line 13, and when the preset power supply line 13 supplies power to the preset component, the voltage conversion efficiency of the preset power supply line 13 may be improved, and then the power consumption and the temperature of the preset power supply line 13 are reduced, which is beneficial to improving the operation performance of the electronic device.
It should be noted that, at an initial stage of the operation state of the electronic device, the temperature of the preset power supply line 13 is low, the default selector circuit 12 may switch the preset power supply line 13 to access the power adapter, and the power adapter may also charge a battery equipped in the electronic device while supplying power to the preset component of the electronic device. When the electronic access power adapter runs the heavy-load program, when the temperature of the preset power supply line 13 corresponding to the preset part such as a CPU is detected to be too high, the battery can be switched to supply power for the corresponding preset part, the voltage conversion efficiency of the preset power supply line 13 is improved, and then the power consumption of the preset power supply line 13 can be reduced, so that the temperature of the preset power supply line 13 is reduced, and the running performance of the electronic equipment is improved.
In some embodiments, the power supply switching circuit includes a power amount detection part, and the power supply switching method further includes:
acquiring the residual electric quantity of the battery;
when the residual electric quantity is judged to be smaller than the preset electric quantity, the switch switching state of the switch switching circuit is controlled, so that the power adapter supplies power to the preset component through the preset power supply line.
Specifically, with reference to fig. 1, when the battery is connected to the preset power supply line 13 to supply power to the preset component, the remaining power of the battery is detected and obtained, and when the remaining power of the battery is detected to be too low, for example, the remaining power of the battery is less than the preset power, in order to ensure that the preset component in the electronic device, such as a CPU, continues to run the program, the controller 11 generates the switching control signal and transmits the switching control signal to the switch circuit 12, and further, the switch circuit 12 switches the power adapter to be connected to the preset power supply line to supply power to the preset component.
Therefore, the power supply switching method of the electronic device, provided by the embodiment of the application, can improve the voltage conversion efficiency of the preset power supply line corresponding to part of the preset component when the electronic device, such as a notebook computer, is connected to the power adapter to run the heavy-load program, so that the temperature of the power supply line is reduced. Therefore, the battery replaces a power adapter to supply power to the corresponding preset part as input voltage, which is equivalent to that the battery supplies power to the system of the electronic equipment at an auxiliary power adapter, thereby optimizing the running performance of the electronic equipment, and solving the problems that the running performance of the electronic equipment is reduced and users feel uncomfortable due to overhigh temperature of part of power supply lines.
Based on the same inventive concept, the embodiment of the application also provides a power supply switching device of the electronic equipment. Fig. 11 is a schematic structural diagram of a power supply switching device of an electronic device according to an embodiment of the present application, and as shown in fig. 11, the device includes: an obtaining module 201, configured to obtain a temperature signal generated according to a temperature of a preset power supply line; and the control module 202 is configured to control a switching state of the switching circuit according to the temperature signal, so that the power adapter or the battery supplies power to the preset component through the preset power supply line.
The power supply switching device for electronic equipment provided in the foregoing embodiments can perform the power supply switching method for electronic equipment provided in the foregoing embodiments, and has the same or corresponding beneficial effects, which are not described in detail herein.
The embodiments of the present disclosure further provide a storage medium, where the storage medium stores a program or an instruction, and the program or the instruction causes a computer to execute the steps of the power supply switching method for any electronic device provided in the foregoing embodiments.
Illustratively, the program or the instructions cause a computer to execute a power supply switching method of an electronic device, the method comprising:
acquiring a temperature signal generated according to the temperature of a preset power supply line;
and controlling the switch switching state of the switching switch circuit according to the temperature signal so that the power adapter or the battery supplies power to the preset component through the preset power supply line.
In some embodiments, the computer-executable instructions, when executed by a computer processor, may also be configured to implement any of the above-mentioned methods provided in the embodiments of the present application, to achieve corresponding advantages.
From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods of the embodiments of the present application.
On the basis of the foregoing embodiments, an embodiment of the present application further provides an electronic device, which includes the power supply switching system of any one of the electronic devices provided in the foregoing embodiments, or includes a processor and a memory, where the processor is configured to execute the steps of the power supply switching method of any one of the electronic devices provided in the foregoing embodiments by calling a program or instructions stored in the memory.
Fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 12, the electronic device includes a processor 601 and a memory 602, and the processor 601 executes the steps of the power supply switching method of the electronic device according to the embodiment by calling a program or an instruction stored in the memory 602, so that the method has the beneficial effects of the embodiment, and is not described herein again.
In particular, as shown in fig. 6, the electronic device may be arranged to comprise at least one processor 601, at least one memory 602 and at least one communication interface 603. The various components in the electronic device are coupled together by a bus system 606. The communication interface 603 is used for information transmission with an external device. It is understood that the bus system 606 is used to enable communications among the components. The bus system 606 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, the various buses are identified in fig. 12 as the bus system 606.
It will be appreciated that the memory 602 in the present embodiment can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. In some embodiments, memory 602 stores the following elements: an executable unit or data structure, or a subset thereof, or an extended set of them, an operating system and an application program. In this embodiment, the processor 601 executes the steps of the embodiments of the power supply switching method for an electronic device provided in this embodiment by calling a program or an instruction stored in the memory 602.
The power supply switching method for the electronic device provided by the embodiment of the application can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The Processor 601 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The steps of the power supply switching method for the electronic device provided by the embodiment of the disclosure can be directly implemented by the hardware decoding processor, or implemented by the combination of hardware and software units in the hardware decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in a memory 602, and the processor 601 reads the information in the memory 602 and performs the steps of the method in combination with its hardware.
The electronic device may further include one or more physical components to execute the instructions generated by the processor 601 when executing the power supply switching method of the electronic device provided in the embodiment of the present application. Different entity components can be arranged in the electronic device or outside the electronic device, such as a cloud server and the like. The various physical components cooperate with the processor 601 and the memory 602 to implement the functions of the electronic device in this embodiment.
It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A power supply switching circuit of an electronic device, comprising:
the temperature detection device comprises a temperature detection component, a controller and a change-over switch circuit, wherein the controller is electrically connected with the temperature detection component and the change-over switch circuit respectively;
the temperature detection component is arranged close to a preset power supply line and used for detecting the temperature of the preset power supply line to generate a temperature signal; the preset power supply circuit is a power supply circuit of a preset component in the electronic equipment;
the controller is used for outputting a switching control signal according to the temperature signal, and the switching switch circuit is used for controlling the switching state of the switching switch circuit according to the switching control signal so as to enable a power adapter or a battery to supply power to the preset component through the preset power supply line.
2. The power supply switching circuit of an electronic device according to claim 1, wherein the changeover switch circuit includes:
the selector switch modules are electrically connected with the preset power supply lines in a one-to-one correspondence manner; or the change-over switch module is correspondingly and electrically connected with all the preset power supply circuits.
3. The power supply switching circuit of the electronic device according to claim 2, wherein the switch module includes:
a first end of the first switch is electrically connected with the power adapter, a second end of the first switch is electrically connected with the corresponding preset power supply line, and a control end of the first switch is accessed to a first switching control signal;
and a first end of the second switch is electrically connected with the battery, a second end of the second switch is electrically connected with the corresponding preset power supply line, and a control end of the second switch is connected with a second switching control signal.
4. The power supply switching circuit of an electronic device according to claim 1, wherein the controller includes a first switching terminal and a second switching terminal, the first switching terminal being directly connected to the switching circuit through a first wire, the second switching terminal being directly connected to the switching circuit through a second wire.
5. The power supply switching circuit of an electronic device according to claim 1, further comprising:
the controller comprises a first switching end and a second switching end;
the first switching end is connected with the switching switch circuit through the first control switch, and the second switching end is connected with the switching switch circuit through the second control switch.
6. The power supply switching circuit of an electronic device according to claim 1, further comprising:
the electric quantity detection component is respectively electrically connected with the battery and the controller, the electric quantity detection component is used for detecting the residual electric quantity of the battery and generating an electric quantity signal, and the controller is used for outputting a switching control signal according to the temperature signal and the electric quantity signal.
7. A power supply switching system of an electronic device, comprising the power supply switching circuit of the electronic device according to any one of claims 1 to 6, further comprising a power adapter, a battery, and a preset power supply line;
the power adapter, the battery and the preset power supply circuit are all electrically connected with the change-over switch circuit, and the preset power supply circuit is electrically connected with the preset component.
8. A power supply switching method of an electronic device, which is implemented based on the power supply switching circuit of the electronic device according to any one of claims 1 to 6, the power supply switching method of the electronic device comprising:
acquiring a temperature signal generated according to the temperature of a preset power supply line;
and controlling the switch switching state of the switching switch circuit according to the temperature signal so as to enable the power adapter or the battery to supply power to a preset component through the preset power supply line.
9. The method for switching power supply to an electronic device according to claim 8, wherein the controlling the switching state of the switching circuit according to the temperature signal comprises:
when the temperature of predetermineeing the power supply line is greater than when predetermineeing the temperature, control the switch switching state of change over switch circuit, so that the battery passes through predetermine the power supply line way predetermine the part power supply, wherein temperature signal contains predetermine the temperature information of power supply line.
10. The method according to claim 8, wherein the power supply switching circuit includes a power amount detection unit, and the method further includes:
acquiring the residual capacity of the battery;
when the residual electric quantity is judged to be smaller than the preset electric quantity, the switch switching state of the switch switching circuit is controlled, so that the power adapter supplies power to the preset component through the preset power supply line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210879374.XA CN115173548A (en) | 2022-07-25 | 2022-07-25 | Power supply switching circuit, system and method of electronic equipment |
| PCT/CN2022/141468 WO2024021473A1 (en) | 2022-07-25 | 2022-12-23 | Power supply switching circuit, system and method for electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210879374.XA CN115173548A (en) | 2022-07-25 | 2022-07-25 | Power supply switching circuit, system and method of electronic equipment |
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| CN115173548A true CN115173548A (en) | 2022-10-11 |
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| CN202210879374.XA Pending CN115173548A (en) | 2022-07-25 | 2022-07-25 | Power supply switching circuit, system and method of electronic equipment |
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| WO (1) | WO2024021473A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021473A1 (en) * | 2022-07-25 | 2024-02-01 | 上海闻泰信息技术有限公司 | Power supply switching circuit, system and method for electronic device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5225186B2 (en) * | 2009-04-17 | 2013-07-03 | フリースケール セミコンダクター インコーポレイテッド | Charge control circuit and battery charger provided with the charge control circuit |
| US8907631B1 (en) * | 2013-07-31 | 2014-12-09 | Qnovo Inc. | Adaptive charging technique and circuitry for a battery/cell using multiple charge circuits and temperature data |
| CN103545896B (en) * | 2013-11-07 | 2015-09-30 | 成都芯源系统有限公司 | Bidirectional switch circuit, mobile power supply circuit and control method thereof |
| CN105610215B (en) * | 2015-12-01 | 2018-10-02 | 深圳市大疆创新科技有限公司 | For electric installation, method for controlling power supply and using the movable fixture for electric installation |
| CN106356988B (en) * | 2016-10-09 | 2019-01-15 | 珠海市杰理科技股份有限公司 | Power supply control switching circuit |
| CN207251302U (en) * | 2017-09-27 | 2018-04-17 | 上海科众恒盛云计算科技有限公司 | A kind of IDC computer rooms power supply fast switching system |
| CN108039770A (en) * | 2018-01-15 | 2018-05-15 | 郑州云海信息技术有限公司 | A kind of server power supply adapter and battery powered seamless handover method and circuit |
| CN112366764A (en) * | 2020-10-27 | 2021-02-12 | 歌尔智能科技有限公司 | Charging cooling structure and electronic product |
| CN115173548A (en) * | 2022-07-25 | 2022-10-11 | 上海闻泰信息技术有限公司 | Power supply switching circuit, system and method of electronic equipment |
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2022
- 2022-07-25 CN CN202210879374.XA patent/CN115173548A/en active Pending
- 2022-12-23 WO PCT/CN2022/141468 patent/WO2024021473A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021473A1 (en) * | 2022-07-25 | 2024-02-01 | 上海闻泰信息技术有限公司 | Power supply switching circuit, system and method for electronic device |
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