CN111371169A - Multi-input power supply system, method, equipment and readable storage medium - Google Patents
Multi-input power supply system, method, equipment and readable storage medium Download PDFInfo
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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
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
Disclosed herein are a multi-input power supply system, method, device and readable storage medium, which belong to the technical field of power supply, the system comprising: the power supply module comprises a first control unit, a second control unit, a first monitoring unit, a second monitoring unit and a power supply module MCU, wherein the first control unit is connected with one path of power supply input, and the second control unit is connected with the other path of power supply input; by distributing the double-path alternating current redundancy to each power supply module, the intelligent switching of high-power double-alternating current input is realized, and further the load balance of the multiphase alternating current of the whole system is realized.
Description
Technical Field
The present disclosure relates to the field of power supply technologies, and in particular, to a multi-input power supply system, method, device, and readable storage medium.
Background
With the application of high-power communication, servers and other equipment, the direct current bus output power architecture is more and more widely used, the parallel output of the embedded multi-power module to support higher power becomes a normal state, the conventional common direct current-48V input current becomes a bottleneck under the background of power improvement, and the alternating current input and high-voltage direct current input direct current bus output architecture gradually starts to be popularized and used. In an alternating current input scene, due to the phase difference and safety characteristics of alternating current, in order to ensure the safety and reliability of equipment, a power module in a bus architecture generally adopts an input single-path alternating current power supply mode, and an output mode adopts an N +1 or N + N backup mode. The N +1 parallel output mode adopts N power supply modules connected with an alternating current A path input, and the other 1 power supply module connected with an alternating current B path input, so as to realize redundancy backup. If the power supply where the N power supply modules are located is abnormal, the whole system can only support the minimum system to operate by means of 1 power supply, or a power failure holding function is provided for the whole system for a certain time before overcurrent protection of the power supply. The N + N system adopts N power supply modules to be connected with an alternating current A path input and N power supply modules to be connected with an alternating current B path input, the power supply is reliable in the mode, but double numbers of power supply modules are needed to be used redundantly, and large space waste can be formed in a high-power application scene.
In the early electric power field and communication power machine room application, on the occasion of double-path alternating current input or single-path alternating current input on the input occasion of a single-path oil engine, the double-path alternating current switching can realize that the double-path input is automatically switched to the other path when the single-path power fails by virtue of manual switching or a simple automatic switching device, but the corresponding switching equipment has the problems of large volume, large load, large fluctuation during switching, discontinuous power supply and the like, and needs to realize uninterrupted power supply by virtue of a large-capacity battery pack or a UPS; in addition, the switching equipment is short in service life and not suitable for frequent switching, and the switching is easy to damage a power distribution network and cause energy waste. With the development of electronic technology, the alternating current switching of large current can be realized by using a novel electromagnetic relay or a silicon controlled rectifier with a small volume, a double-path alternating current centralized switching device is decomposed into a single power supply module under the background, a double-path input alternating current shares a power conversion part circuit, and the single power supply module can provide large output power. Meanwhile, under the output direct current N +1 or N + M framework, a plurality of power supplies are connected in parallel for output, so that the multi-kilowatt equipment can be supported to realize the input two-way alternating current switching under the condition of uninterrupted service, and finally, the two-way alternating current input redundancy of the high-power equipment is realized.
In an alternating current power supply machine room, particularly in a cluster device such as a data center and a communication machine room, alternating current access adopts a three-phase alternating current power supply mode, and ideally, loads of different phases of three-phase alternating current are distributed evenly, so that each phase voltage is stabilized, and line loss is reduced. For this purpose, machine room distribution distributes equipment to different ac phases according to the theoretical load of the equipment to achieve load balancing. However, since the power of different devices changes in stages or the capacity of the devices changes to bring about load changes, it is very difficult to realize absolute balance of three-phase alternating current in the whole machine room, and waste of electricity charges is brought about by line loss caused by unbalanced loads.
Disclosure of Invention
The invention provides a multi-input power supply system, a multi-input power supply method, multi-input power supply equipment and a readable storage medium.
The technical scheme adopted for solving the technical problems is as follows:
according to one aspect herein, there is provided a multiple-input power supply system comprising: more than two power input and a plurality of power module, power module includes first control unit, second control unit, first monitor cell, second monitor cell and power module MCU, first control unit with power input connection all the way, second control unit and another way power input connection, first monitor cell is used for real time monitoring first control unit reaches power input's state all the way, second monitor cell is used for real time monitoring second control unit reaches another way power input's state, power module MCU is used for reporting to system CPU the state information of first monitor cell and the state information of second monitor cell, and according to system CPU's instruction drive first control unit reaches second control unit's break-make.
Optionally, the power input is an ac power input or a high voltage dc input.
Optionally, the power supply module further includes a PFC BOOST circuit, and the PFC BOOST circuit includes a BOOST circuit and an energy storage capacitor.
Optionally, the power module further includes a DC-DC voltage-reducing circuit, an input end of the DC-DC voltage-reducing circuit is connected to the PFC boost circuit, and an output end of the DC-DC voltage-reducing circuit is connected to a load bus.
Optionally, the first monitoring unit and the second monitoring unit both include: the voltage acquisition circuit acquires corresponding real-time voltage of alternating current input; the voltage division follower circuit carries out voltage division processing on the collected real-time voltage and then inputs the voltage division processed real-time voltage to the ADC sampling circuit, the ADC sampling circuit sends the sampled signal to the power module MCU, the Hall current sampling circuit is connected with the rear end of the corresponding control unit, corresponding current sampling is used for judging whether the control unit is effectively opened after being informed to be disconnected, so that the power module MCU can carry out switching between two paths of alternating current input or not, and the voltage follower circuit is used for isolating the voltage component of the Hall current sampling circuit and then inputting the voltage component to the ADC sampling circuit.
Optionally, the first control unit and the second control unit each include: the driver is controlled by the power supply module MCU and provides driving voltage for the switch device so as to realize on-off control of the switch device.
Optionally, the switching device is: a relay or a high voltage MOS switch.
According to another aspect herein, there is provided a multi-input power supply method, comprising:
acquiring state information of a first path of power supply input and a second path of power supply input of a power supply module;
selecting the first path of power supply input or the second path of power supply input as real-time power supply input according to the state information;
the real-time power supply input is boosted and stored through the PFC boosting circuit and then is output to the load bus through the DC-DC voltage reduction circuit;
and switching the power supply input of the power supply module according to the state of the load bus.
According to yet another aspect herein, there is provided an electronic device comprising a memory, a processor, and at least one application stored in the memory and configured to be executed by the processor, the application configured to perform the multi-input power method described above.
According to yet another aspect herein, there is provided a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the multiple-input power supply method described above.
The embodiment of the invention discloses a multi-input power supply system, a method, equipment and a readable storage medium, wherein the system comprises: the power supply module comprises a first control unit, a second control unit, a first monitoring unit, a second monitoring unit and a power supply module MCU (microprogrammed control Unit), wherein the first control unit is connected with one path of power supply input, the second control unit is connected with the other path of power supply input, the first monitoring unit is used for monitoring the states of the first control unit and the one path of power supply input in real time, the second monitoring unit is used for monitoring the states of the second control unit and the other path of power supply input in real time, and the power supply module MCU is used for reporting the state information of the first monitoring unit and the state information of the second monitoring unit to a system CPU (central processing unit) and driving the first control unit and the second control unit to be switched on and off according to the instruction of the system CPU; by distributing the double-path alternating current redundancy to each power supply module, the intelligent switching of high-power double-alternating current input is realized, and further the load balance of the multiphase alternating current of the whole system is realized.
Drawings
Fig. 1 is a functional structure diagram of a multi-input power supply system according to an embodiment of the present invention;
fig. 2 is a schematic functional structure diagram of a three-phase ac input power supply system according to a first embodiment of the present invention;
fig. 3 is a circuit diagram of a PFC boost circuit according to an embodiment of the present invention;
fig. 4 is a schematic functional structure diagram of a monitoring unit according to an embodiment of the present invention;
fig. 5 is a functional structure diagram of a control unit according to an embodiment of the present invention;
fig. 6 is a schematic functional structure diagram of another control unit according to an embodiment of the present invention;
fig. 7 is a schematic functional structure diagram of another control unit according to an embodiment of the present invention;
fig. 8 is a functional structure diagram of a multi-input power supply system according to a second embodiment of the present invention;
fig. 9 is a flowchart of a multi-input power supply method according to a third embodiment of the present invention.
The objects, features, and advantages described herein will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer and more obvious, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not restrictive.
Example one
As shown in fig. 1, in the present embodiment, a multiple-input power supply system includes: the power supply comprises more than two paths of power supply inputs and a plurality of power supply modules, wherein each power supply module comprises a first control unit (marked as a control unit A in figure 1), a second control unit (marked as a control unit B in figure 1), a first monitoring unit (marked as a monitoring unit A in figure 1), a second monitoring unit (marked as a monitoring unit B in figure 1) and a power supply module MCU (microprogrammed control Unit), the first control unit is connected with one path of power supply input (marked as an alternating current input A in figure 1), the second control unit is connected with the other path of power supply input (marked as an alternating current input B in figure 1), the first monitoring unit is used for monitoring the states of the first control unit and the one path of power supply input in real time, the second monitoring unit is used for monitoring the states of the second control unit and the other path of power supply input in real time, and the power supply module MCU is used for reporting the state information of the first monitoring unit and the state information of the second monitoring unit, and driving the first control unit and the second control unit to be switched on and off according to the instruction of the system CPU.
In the embodiment, the two-way alternating current redundancy is distributed to each power module, so that the high-power double-alternating current input intelligent switching is realized, and further the load balance of the multiphase alternating current of the whole system is realized.
In this embodiment, the power input is an ac power input, the voltage of the ac power includes, but is not limited to, 220VAC, 110VAC, 120VAC, and the frequency of the ac power includes, but is not limited to, 50Hz, 60 Hz.
In the present embodiment, the ac power input is three-phase ac or multi-phase ac, as shown in fig. 2, taking three-phase ac as an example, the one power input is phase a, phase B or phase C of three-phase ac 1, and the other power input is phase a, phase B or phase C of three-phase ac 2; as in the power module 1 in fig. 2, one power input is phase a of three-phase ac 1, and the other power input is phase a of three-phase ac 2; as shown in fig. 2, in the power module X, one power input is a phase B of three-phase ac 1, and the other power input is a phase B of three-phase ac 2; as shown in fig. 2, in the power module N, one power input is a C phase of three-phase ac 1, and the other power input is a C phase of three-phase ac 2; through connecting different power module dual-path input to different alternating current phase positions in the system, entire system can be according to the load condition of current distribution environment different phase positions, through the individual alternating current input of timesharing or stage switching power module, and then realizes the load balance of the heterogeneous interchange of whole computer lab.
In this embodiment, when the system is started, the ac input a is set as the default input path by the system, or the default ac input is set as the ac input a or the ac input B by issuing an instruction to modify the corresponding register to the single power module MCU through the upper system CPU after the system is running.
In this embodiment, the monitoring unit a and the monitoring unit B respectively detect states of the ac input a and the ac input B and report the states to the power module MCU. The power supply module MCU can automatically select the on-off of the control unit A or the control unit B according to the states of the AC input A and the AC input B detected in real time to realize the selection of single-path AC, the control unit A is preferentially started to be a default mode in the selection of a flow chart, and the control unit B can be judged before the control unit A is started. If the AC input A is abnormally started or the power is lost during operation, the power supply module MCU immediately informs the control unit A to be disconnected and judges whether the control unit A is disconnected or not, and then informs the control unit B to be started, so that the switching of the AC input is realized. In order to ensure that short circuits occur in alternating currents of different sources, a control unit A and a control unit B in the control mode both adopt a cut-before-cut mode, a window period that the control Power supply A and the control unit B are both cut off can occur in the middle, and the maintenance capability of an optimized PFC (Power Factor Correction) booster circuit can be used for providing energy of full load output of a single Power supply module in the window period, so that the Power supply module is ensured not to fail when two alternating currents are switched.
In this embodiment, the power supply module MCU and the system CPU communicate with each other in real time to report corresponding information, and the system CPU can issue instructions to each power supply module MCU to perform operations such as input ac switching.
As shown in fig. 3, in this embodiment, the power supply module further includes a PFC BOOST circuit, and the PFC BOOST circuit includes a BOOST circuit and an energy storage capacitor. The PFC BOOST circuit adopts a BOOST BOOST circuit, converts alternating current into 400V high-voltage direct current, and the rear end is connected with a high-voltage aluminum electrolytic capacitor for energy storage, so that the stored energy ensures that the power module can continuously fully load and output alternating current input in 1/2-1 alternating current period. The circuit has the same effective boosting function when high-voltage direct current is input.
In this embodiment, the power module further includes a DC-DC voltage-reducing circuit, an input end of the DC-DC voltage-reducing circuit is connected to the PFC boost circuit, and an output end of the DC-DC voltage-reducing circuit is connected to a load bus. The DC-DC voltage reduction circuit can output fixed direct-current voltage to the load bus, the DC-DC power conversion circuit is provided with a current-sharing bus, and output current sharing among different power modules can be realized through comparison of the current-sharing bus when a plurality of power modules form an N +1 redundancy output mode.
In a three-phase alternating current input scene, when the number of the equipment configuration power supply modules is more than 3, different-phase alternating current sources can be connected to the alternating current input end of a single power supply module in groups, corresponding wiring modes are stored in the system, a CPU on the upper layer of the system monitors the alternating current phase and the output load state of each power supply module which are actually connected, and the CPU on the upper layer of the system can realize the load balance of the three-phase alternating current in the system by controlling the input alternating current switching of the power supply modules which are hung down. If the power monitoring equipment of the machine room where the equipment is located can access each phase current data of the multi-phase alternating current to the equipment to realize linkage, a CPU (central processing unit) of an upper layer system of the equipment can issue an alternating current switching instruction to each power module of the equipment in a time-sharing or stage-by-stage mode according to the received real-time current information of each phase of the multi-phase alternating current of the machine room, the load current of each phase of the multi-phase alternating current accessed to the equipment is adjusted to be reversely matched with other equipment of the machine room in a future period, and finally the load of the multi-phase alternating current of the whole machine room is approximately balanced, so that the line loss caused by unbalanced phase is reduced.
As shown in fig. 4, in the present embodiment, the first monitoring unit and the second monitoring unit each include: the voltage acquisition circuit acquires corresponding real-time voltage of alternating current input; the voltage division follower circuit carries out voltage division processing on the collected real-time voltage and then inputs the voltage division processed real-time voltage to the ADC sampling circuit, the ADC sampling circuit sends the sampled signal to the power module MCU, the Hall current sampling circuit is connected with the rear end of the corresponding control unit, corresponding current sampling is used for judging whether the control unit is effectively opened after being informed to be disconnected, so that the power module MCU can carry out switching between two paths of alternating current input or not, and the voltage follower circuit is used for isolating the voltage component of the Hall current sampling circuit and then inputting the voltage component to the ADC sampling circuit.
As shown in fig. 5, in the present embodiment, the first control unit and the second control unit each include: the driver is controlled by the power supply module MCU and provides driving voltage for the switch device so as to realize on-off control of the switch device.
In this embodiment, the switch device is a double-pole single-throw electromagnetic relay for controlling the on/off of the input positive and negative lines. When the driver does not provide driving, the relay switch is in a normally open state, and the state is a default state; when the driver provides driving voltage, the magnetic force generated by the relay driving coil is attracted to enable the relay switch to be conducted.
As shown in fig. 6, as another embodiment, the relay selected for the switching device may also be a three-terminal double-pole double-throw relay with interlock, and at this time, the two input control circuits may be shared.
As shown in fig. 7, as another embodiment, the switching device may further use a high-voltage MOS switch instead of a relay to implement a switching function, and in order to avoid the unidirectional conduction characteristic when the MOS diode is not driven, two back-to-back MOS transistors need to be connected in series on a single line.
Example two
As shown in fig. 8, in this embodiment, the power input may also be a high-voltage dc power input, and in this embodiment, a power input mode in which one path of the high-voltage dc input and one path of the ac input are used, or even multiple paths of the ac inputs are matched with each other is adopted, so that a load balancing effect can be achieved, and the high-voltage dc is not affected by whether the inputs are reversely connected, and therefore, the wiring is flexible, and the usability is higher.
EXAMPLE III
As shown in fig. 9, a multiple-input power supply method includes:
s10, acquiring state information of a first path of power supply input and a second path of power supply input of the power supply module;
s20, selecting the first path of power supply input or the second path of power supply input as real-time power supply input according to the state information;
s30, after the real-time power supply input is boosted and stored energy through the PFC boosting circuit, the real-time power supply input is output to a load bus through the DC-DC voltage reduction circuit;
and S40, switching the power supply input of the power supply module according to the state of the load bus.
In the embodiment, the two-way alternating current redundancy is distributed to each power module, so that the high-power double-alternating current input intelligent switching is realized, and further the load balance of the multiphase alternating current of the whole system is realized.
In this embodiment, the power input is an ac power input, the voltage of the ac power includes, but is not limited to, 220VAC, 110VAC, 120VAC, and the frequency of the ac power includes, but is not limited to, 50Hz, 60 Hz.
In the present embodiment, the ac power input is three-phase ac or multi-phase ac, as shown in fig. 2, taking three-phase ac as an example, the one power input is phase a, phase B or phase C of three-phase ac 1, and the other power input is phase a, phase B or phase C of three-phase ac 2; as in the power module 1 in fig. 2, one power input is phase a of three-phase ac 1, and the other power input is phase a of three-phase ac 2; as shown in fig. 2, in the power module X, one power input is a phase B of three-phase ac 1, and the other power input is a phase B of three-phase ac 2; as shown in fig. 2, in the power module N, one power input is a C phase of three-phase ac 1, and the other power input is a C phase of three-phase ac 2; through connecting different power module dual-path input to different alternating current phase positions in the system, entire system can be according to the load condition of current distribution environment different phase positions, through the individual alternating current input of timesharing or stage switching power module, and then realizes the load balance of the heterogeneous interchange of whole computer lab.
Example four
In this embodiment, an electronic device includes a memory, a processor, and at least one application stored in the memory and configured to be executed by the processor, the application configured to perform the multi-input power supply method of embodiment one.
EXAMPLE five
Embodiments of the present invention provide a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method embodiments as described in any of the above multiple-input power supply method embodiments.
It should be noted that the above device, apparatus, and readable storage medium embodiments and method embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the method embodiments, and technical features in the method embodiments are correspondingly applicable in the device embodiments, which are not described herein again.
The embodiment of the invention discloses a multi-input power supply system, a method, equipment and a readable storage medium, wherein the system comprises: the power supply module comprises a first control unit, a second control unit, a first monitoring unit, a second monitoring unit and a power supply module MCU (microprogrammed control Unit), wherein the first control unit is connected with one path of power supply input, the second control unit is connected with the other path of power supply input, the first monitoring unit is used for monitoring the states of the first control unit and the one path of power supply input in real time, the second monitoring unit is used for monitoring the states of the second control unit and the other path of power supply input in real time, and the power supply module MCU is used for reporting the state information of the first monitoring unit and the state information of the second monitoring unit to a system CPU (central processing unit) and driving the first control unit and the second control unit to be switched on and off according to the instruction of the system CPU; by distributing the double-path alternating current redundancy to each power supply module, the intelligent switching of high-power double-alternating current input is realized, and further the load balance of the multiphase alternating current of the whole system is realized.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the invention. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present invention are intended to be within the scope of the claims.
Claims (10)
1. A multiple-input power supply system, comprising: more than two power input and a plurality of power module, power module includes first control unit, second control unit, first monitor cell, second monitor cell and power module MCU, first control unit with power input connection all the way, second control unit and another way power input connection, first monitor cell is used for real time monitoring first control unit reaches power input's state all the way, second monitor cell is used for real time monitoring second control unit reaches another way power input's state, power module MCU is used for reporting to system CPU the state information of first monitor cell and the state information of second monitor cell, and according to system CPU's instruction drive first control unit reaches second control unit's break-make.
2. A multiple input power supply system according to claim 1 wherein the power input is an ac power input or a high voltage dc input.
3. The multi-input power supply system according to claim 2, wherein the power module further comprises a PFC BOOST circuit, and the PFC BOOST circuit comprises a BOOST circuit and an energy storage capacitor.
4. The multiple-input power supply system according to claim 3, wherein the power module further comprises a DC-DC buck circuit, an input terminal of the DC-DC buck circuit is connected to the PFC boost circuit, and an output terminal of the DC-DC buck circuit is connected to a load bus.
5. A multiple-input power supply system according to claim 2, wherein the first monitoring unit and the second monitoring unit each comprise: the voltage acquisition circuit acquires corresponding real-time voltage of alternating current input; the voltage division follower circuit carries out voltage division processing on the collected real-time voltage and then inputs the voltage division processed real-time voltage to the ADC sampling circuit, the ADC sampling circuit sends the sampled signal to the power module MCU, the Hall current sampling circuit is connected with the rear end of the corresponding control unit, corresponding current sampling is used for judging whether the control unit is effectively opened after being informed to be disconnected, so that the power module MCU can carry out switching between two paths of alternating current input or not, and the voltage follower circuit is used for isolating the voltage component of the Hall current sampling circuit and then inputting the voltage component to the ADC sampling circuit.
6. A multiple-input power supply system according to claim 5, wherein the first control unit and the second control unit each comprise: the driver is controlled by the power supply module MCU and provides driving voltage for the switch device so as to realize on-off control of the switch device.
7. A multiple-input power supply system according to claim 6, wherein the switching device is: a relay or a high voltage MOS switch.
8. A multiple-input power supply method, comprising:
acquiring state information of a first path of power supply input and a second path of power supply input of a power supply module;
selecting the first path of power supply input or the second path of power supply input as real-time power supply input according to the state information;
the real-time power supply input is boosted and stored through the PFC boosting circuit and then is output to the load bus through the DC-DC voltage reduction circuit;
and switching the power supply input of the power supply module according to the state of the load bus.
9. An electronic device comprising a memory, a processor, and at least one application stored in the memory and configured to be executed by the processor, wherein the application is configured to perform the multiple-input power method of claim 8.
10. A readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the multiple-input power supply method of claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811603707.6A CN111371169A (en) | 2018-12-26 | 2018-12-26 | Multi-input power supply system, method, equipment and readable storage medium |
| PCT/CN2019/120721 WO2020134793A1 (en) | 2018-12-26 | 2019-11-25 | Multi-input power supply system, method and device, and readable storage medium |
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| CN201811603707.6A CN111371169A (en) | 2018-12-26 | 2018-12-26 | Multi-input power supply system, method, equipment and readable storage medium |
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