CN115663957A - Power supply apparatus and control method of power supply apparatus - Google Patents
Power supply apparatus and control method of power supply apparatus Download PDFInfo
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- CN115663957A CN115663957A CN202211357608.0A CN202211357608A CN115663957A CN 115663957 A CN115663957 A CN 115663957A CN 202211357608 A CN202211357608 A CN 202211357608A CN 115663957 A CN115663957 A CN 115663957A
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention discloses a power supply apparatus and a control method of the power supply apparatus. The power supply device includes a power supply assembly and a charging control module. The power supply assembly comprises a first battery pack and a second battery pack which are connected in series, the first battery pack and the second battery pack are used for providing a first voltage in common, and the second battery pack is used for providing a second voltage. The charging control module is switchable to a first charging state in which the first battery pack and the second battery pack can be simultaneously charged or a second charging state in which the second battery pack can be singly charged. According to the invention, the charging state is switched through the charging control module, so that the problem of imbalance between the first battery pack and the second battery pack can be solved.
Description
Technical Field
The present invention relates to the field of consumer electronics, and more particularly, to a power supply apparatus and a control method of the power supply apparatus.
Background
In the related art, the same power supply apparatus may be used to supply power to automobiles of different starting voltages for ignition. For example, the power supply device may employ 2 sets of batteries connected in series, the two sets of batteries being a high-stage battery set and a low-stage battery set. When the automobile with 12V starting voltage is supplied with power, the electric energy of the low-section battery pack is supplied for ignition; when supplying power for the car that starting voltage is 24V, get 2 group batteries's electric energy and supply power for the ignition, can furthest utilize the battery like this, but also can bring 2 group batteries and appear the unbalanced problem because when starting 12V car, high section group battery can not discharge, leads to the voltage can be than the higher condition of low section group battery.
Disclosure of Invention
The embodiment of the invention provides a power supply device and a control method of the power supply device.
The embodiment of the invention provides power supply equipment. The power supply device includes a power supply component and a charging control module. The power supply assembly comprises a first battery pack and a second battery pack which are connected in series, the first battery pack and the second battery pack are used for providing a first voltage in common, and the second battery pack is used for providing a second voltage. The charging control module can be switched to a first charging state or a second charging state, and in the first charging state, the first battery pack and the second battery pack can be charged simultaneously; in the second charging state, the second battery pack can be charged alone.
In some embodiments, the charging control module comprises an electronic switch.
In some embodiments, the electronic switch includes a first connection end, a second connection end, and a third connection end, the first connection end is used for connecting a first end of the first battery pack, the second connection end is used for connecting a second end of the first battery pack, the second end of the first battery pack is connected to the second battery pack, and the third connection end is used for charging; when the first connection end is connected with the third connection end, the charging control module is in the first charging state; when the second connection end is conducted with the third connection end, the charging control module is in the second charging state.
In some embodiments, the power supply device includes a charging port, and the charging control module connects the charging port and the power supply assembly.
In some embodiments, the first battery pack comprises a plurality of first batteries, the second battery pack comprises a plurality of second batteries, and the charging control module switches to the second charging state when a voltage difference between a first average voltage of the plurality of first batteries and a second average voltage of the plurality of second batteries is greater than a first preset voltage difference; and under the condition that the voltage difference is smaller than the first preset voltage difference, the charging control module is switched to the first charging state.
In some embodiments, the power supply apparatus further includes a voltage sampling module for detecting a voltage of each of the first batteries and a voltage of each of the second batteries.
In some embodiments, the first battery pack includes a plurality of first batteries, the second battery pack includes a plurality of second batteries, and the power supply device further includes a voltage sampling module, wherein the voltage sampling module is configured to detect a voltage of each of the first batteries and a voltage of each of the second batteries to obtain voltage detection data; the power supply equipment further comprises a controller, the controller is connected with the voltage sampling module, and the controller is used for receiving the voltage detection data transmitted by the voltage sampling module, generating a charging switching signal according to the voltage detection data to control the charging control module to be switched into the first charging state or the second charging state.
In some embodiments, the power supply device further comprises a charging current detection module, and the charging current detection module is used for detecting the charging current of the power supply component to realize constant current charging.
In some embodiments, the power supply apparatus further comprises a master switch for turning on or off an input or an output of the power supply component.
In some embodiments, the power supply apparatus further comprises a first emergency start output interface for connecting to a first type of external load and a second emergency start output interface for connecting to a second type of external load; the first battery pack and the second battery pack output power through the first emergency starting output interface to supply power for the first external load to strike fire; the second battery pack outputs power through the second emergency starting output interface to supply power for the second type of external load to strike fire; the first emergency starting output interface and the second emergency starting output interface are the same interface or different interfaces.
In some embodiments, the first type of external load comprises a vehicle having a starting voltage of 24V, and the second type of external load comprises a vehicle having a starting voltage of 12V.
The invention provides a control method of a power supply device, wherein the power supply device comprises a power supply component and a charging control module, the power supply component comprises a first battery pack and a second battery pack which are connected in series, the first battery pack and the second battery pack are jointly used for providing a first voltage, and the second battery pack is used for providing a second voltage; the control method comprises the following steps: controlling the charging control module to be switched to a first charging state or a second charging state, wherein in the first charging state, the first battery pack and the second battery pack can be charged simultaneously; in the second charging state, the second battery pack can be charged alone.
In some embodiments, the controlling the charging control module to switch to the first charging state or the second charging state comprises: under the condition that the voltage difference between the first average voltages of the first batteries and the second average voltages of the second batteries is larger than a first preset voltage difference, controlling the charging control module to be switched to the second charging state; and under the condition that the voltage difference is smaller than the first preset voltage difference, controlling the charging control module to be switched to the first charging state until the power supply assembly is fully charged.
In the power supply apparatus and the control method of the power supply apparatus according to the embodiments of the present invention, the charging state is switched by the charging control module, so that the imbalance problem between the first battery pack and the second battery pack can be solved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a power supply apparatus of an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a control method of an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a charge control module and power supply assembly according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, embodiments of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the related art, the same power supply apparatus may be used to supply power to automobiles of different starting voltages for ignition. For example, the power supply device may employ 2 sets of batteries connected in series, the two sets of batteries being a high-stage battery set and a low-stage battery set. When the automobile with 12V starting voltage is supplied with power, the electric energy of the low-section battery pack is supplied for ignition; when the automobile with the starting voltage of 24V is powered, the electric energy of 2 groups of batteries is taken to supply power for ignition, so that the batteries can be utilized to the maximum extent, but the problem of unbalance of 2 groups of batteries can also be caused, because the high-section battery pack cannot discharge when the automobile with the starting voltage of 12V is started, the voltage is higher than that of the low-section battery pack, and the problem of unbalance of the 2 groups of batteries is solved.
Referring to fig. 1, a power supply apparatus 1000 according to an embodiment of the present invention is provided. The power supply apparatus 1000 includes a power supply module 100 and a charging control module 200. The power module 100 comprises a first battery pack 110 and a second battery pack 120 connected in series, the first battery pack 110 and the second battery pack 120 being used together for providing a first voltage and the second battery pack 120 being used for providing a second voltage. Charging control module 200 is switchable to a first charging state in which first battery stack 110 and second battery stack 120 are simultaneously chargeable or a second charging state; in the second charge state, second battery pack 120 can be charged alone. Specifically, when it is necessary to charge first battery pack 110 and second battery pack 120 at the same time, charge control module 200 switches the charge state to the first charge state; when the voltage of second battery pack 120 is lower than the voltage of first battery pack 110, second battery pack 120 needs to be charged separately, but first battery pack 110 is not charged, and at this time, charging control module 200 switches the charging state to the second charging state until the voltage difference between first battery pack 110 and second battery pack 120 falls within a predetermined range, and charging control module 200 switches the charging state to the first charging state. As such, by switching the charging state by the charging control module 200, the unbalance between the first battery stack 110 and the second battery stack 120 may be solved.
In some embodiments, the charging control module 200 includes an electronic switch 210. Specifically, the electronic switch 210 includes a single-pole double-throw switch, or a double-pole double-throw switch, or two independent switches; the electronic switch 210 may include a MOS transistor, a relay, or other types of switches, and is not particularly limited herein. The electronic switch 210 is disposed between the charging port 300 and the power module 100, and the electronic switch 210 is used to control the charging state to be the first charging state or the second charging state.
In some embodiments, the power supply device 1000 may be a starting power supply, an emergency power supply, or the like, and the power supply device 1000 can be used for ignition of an automobile.
In some embodiments, the electronic switch 210 includes a first connection end 220, a second connection end 230, and a third connection end 240, the first connection end 220 is used for connecting the first end 111 of the first battery pack 110, the second connection end 230 is used for connecting the second end 112 of the first battery pack 110, the second end 112 of the first battery pack 110 is connected to the second battery pack 120, and the third connection end 240 is used for accessing charging; when the first connection end 220 is connected to the third connection end 240, the charging control module 200 is in a first charging state; when the second connection terminal 230 and the third connection terminal 240 are conducted, the charging control module 200 is in the second charging state. Specifically, when the charging control module 200 is in the first charging state, after the current enters through the third connection end 240, the current is output to the first battery pack 110 through the first connection end 220 and the first end 111, and since the second end 112 is connected to the second battery pack 120, the first battery pack 110 and the second battery pack 120 are connected in series, so that the first battery pack 110 and the second battery pack 120 can be charged simultaneously; when the charging control module 200 is in the second charging state, the current enters through the third connection terminal 240 and is output to the second battery pack 120 through the second terminal 112, so as to realize the independent charging of the second battery pack 120.
Referring to fig. 1, in some embodiments, a power supply apparatus 1000 includes a charging port 300, and a charging control module 200 is coupled to the charging port 300 and the power supply assembly 100. Specifically, the charging port 300 is used to obtain power from an external power supply device for use by the power supply device 1000. Thus, the acquisition of electric energy is realized.
In some embodiments, the first battery pack 110 includes a plurality of first batteries, the second battery pack 120 includes a plurality of second batteries, and the charging control module 200 switches to the second charging state in case that a voltage difference between a first average voltage of the plurality of first batteries and a second average voltage of the plurality of second batteries is greater than a first preset voltage difference; in case the voltage difference is smaller than the first preset voltage difference, the charging control module 200 switches to the first charging state. Specifically, in one embodiment, when an external current enters through the third connection terminal 230, if a voltage difference between a first average voltage of the first batteries and a second average voltage of the second batteries is greater than a first preset voltage difference, the charging control module 200 switches to the second charging state until the voltage difference between the first average voltage of the first batteries and the second average voltage of the second batteries is smaller than a second preset voltage difference (the first preset voltage difference > the second preset voltage difference), and at this time, the charging control module 200 switches to the first charging state again to charge the entire power module 100 until the power module is fully charged. When the voltage difference between the first average voltage of the first batteries and the second average voltage of the second batteries is smaller than the first preset voltage difference, the charging control module 200 switches to the first charging state to charge the entire power supply module 100 until the power supply module is fully charged. In other embodiments, the comparison method used for the voltage difference may also be a comparison between the median values of the multiple battery voltages, a comparison between the minimum values of the multiple battery voltages, or other evaluation methods, which are not limited herein. In this way, the problem of voltage imbalance between first battery stack 110 and second battery stack 120 can be solved.
Referring to fig. 1, in some embodiments, the power supply apparatus 1000 further includes a voltage sampling module 400, and the voltage sampling module 400 is configured to detect a voltage of each first battery and a voltage of each second battery. Specifically, the voltage sampling module 400 is connected to the power module 100 and the controller 500, and the voltage sampling module 400 detects the voltage of each first battery in the first battery pack 110 and the voltage of each second battery in the second battery pack 120, and sends the detected voltage data to the controller 500 for processing. In this manner, the acquisition of voltage information in first battery stack 110 and second battery stack 120 is achieved.
Referring to fig. 1, in some embodiments, the first battery pack 110 includes a plurality of first batteries, the second battery pack 120 includes a plurality of second batteries, and the power supply apparatus 1000 further includes a voltage sampling module 400, where the voltage sampling module 400 is configured to detect a voltage of each first battery and a voltage of each second battery to obtain voltage detection data; the power supply device 1000 further comprises a controller 500, the controller 500 is connected to the voltage sampling module 400, and the controller 500 is configured to receive the voltage detection data transmitted by the voltage sampling module 400 and generate a charging switching signal according to the voltage detection data to control the charging control module 200 to switch to the first charging state or the second charging state. Specifically, controller 500 includes a Programmable Logic Controller (PC or PLC), a Micro Controller Unit (MCU), an integrated circuit, or a discrete component, etc., and the number of strings of individual batteries in two sets of batteries of power supply assembly 100 does not necessarily require agreement, and in one embodiment, the voltage is an average voltage of individual batteries in two sets of batteries of power supply assembly 100, and in other embodiments, the voltage includes a minimum or intermediate voltage value of individual batteries in two sets of batteries of individual power supply assembly 100. As such, to achieve an operation of equalizing the voltage between first battery stack 110 and second battery stack 120.
In some embodiments, the power supply device 1000 further comprises a charging current detection module, which is configured to detect a charging current of the power supply module 100 to implement constant current charging.
In some embodiments, power supply device 1000 further includes a master switch for turning on or off an input or an output of power supply assembly 100. Specifically, a sleep control or the like operation of the power supply module 100 may be implemented to prevent the power supply module 100 from being overcharged or overdischarged.
In some embodiments, the power supply apparatus 1000 further includes a first emergency start output interface for connecting to a first type of external load and a second emergency start output interface for connecting to a second type of external load; the first battery pack 110 and the second battery pack 120 output power through a first emergency starting output interface to supply power for a first external load to strike fire; the second battery pack 120 outputs power supply through a second emergency starting output interface so as to strike sparks for a second type of external load; the first emergency starting output interface and the second emergency starting output interface are the same interface or different interfaces. Specifically, when the first emergency start output interface and the second emergency start output interface are the same interface, the interface may be powered by the first battery pack 110 and the second battery pack 120 to output the first voltage to the first external load, or powered by the second battery pack 120 to output the second voltage to the second external load. After the external load is discharged, when the power supply module 100 needs to be charged, the voltage sampling module 400 collects voltage data of the first battery pack 110 and the second battery pack 120 in the power supply module 100, sends the collected voltage data to the controller 500 for processing, and sends a charging state switching signal to the charging control module 200 according to the voltage data to control the charging control module 200 to switch the charging state. In one embodiment, when a voltage difference between a first average voltage of the first batteries in the first battery set 110 and a second average voltage of the second batteries in the second battery set 120 is greater than a first predetermined voltage difference, the controller 500 controls the charging control module 200 to switch to the second charging state until the voltage difference between the first average voltage of the first batteries in the first battery set 110 and the second average voltage of the second batteries in the second battery set 120 is smaller than the second predetermined voltage difference, at which time the controller 500 controls the charging control module 200 to switch to the first charging state again to charge the entire power module 100 until the power module is fully charged; when the voltage difference between the first average voltage of the first batteries in the first battery pack 110 and the second average voltage of the second batteries in the second battery pack 120 is smaller than the first preset voltage difference, the charging control module 200 switches to the first charging state to charge the entire power module 100 until the power module is fully charged. As such, the problem of voltage imbalance between first battery stack 110 and second battery stack 120 after power supply to different external devices may be solved.
In some embodiments, the first type of external load comprises a vehicle having a starting voltage of 24V, and the second type of external load comprises a vehicle having a starting voltage of 12V. In this way, the power supply apparatus 1000 can be used for ignition of a vehicle with a starting voltage of 24V or a vehicle with a starting voltage of 12V, and the functions of the power supply apparatus 1000 are diversified.
The invention provides a control method of a power supply device 1000, the power supply device 1000 comprises a power supply assembly 100 and a charging control module 200, the power supply assembly 100 comprises a first battery pack 110 and a second battery pack 120 which are connected in series, the first battery pack 110 and the second battery pack 120 are used together for providing a first voltage, and the second battery pack 120 is used for providing a second voltage; the control method comprises the following steps:
01: controlling the charging control module 200 to switch to a first charging state or a second charging state, in which the first battery pack 110 and the second battery pack 120 can be charged simultaneously; in the second charge state, second battery pack 120 can be charged alone.
The control method of the embodiment of the present invention may be implemented by the power supply apparatus 1000, wherein step 01 may be implemented by the controller 500, that is, the controller 500 may be configured to control the charging control module 200 to switch to a first charging state or a second charging state, in which the first battery pack 110 and the second battery pack 120 can be charged simultaneously; in the second charge state, second battery pack 120 can be charged alone.
In some embodiments, the first battery set 110 includes a plurality of first batteries, and the second battery set 120 includes a plurality of second batteries, and referring to fig. 2, step 01 includes:
011: controlling the charging control module 200 to switch to the second charging state when a voltage difference between a first average voltage of the plurality of first batteries and a second average voltage of the plurality of second batteries is greater than a first preset voltage difference;
012: in case the voltage difference is smaller than the first preset voltage difference, the charging control module 200 is controlled to switch to the first charging state until the power supply component 100 is fully charged.
Specifically, step 011 controls the charging control module 200 to switch to the second charging state until the voltage difference is less than the second preset voltage difference, when the voltage difference between the first average voltage of the first batteries and the second average voltage of the second batteries is greater than the first preset voltage difference.
As such, the problem of voltage imbalance between first battery stack 110 and second battery stack 120 may be solved.
Referring to fig. 3, in some embodiments, the charging control module 200 may be controlled to switch to the first charging state or the second charging state by the charging switch enable. In one embodiment, when the charge switching enable is high, the charge control module 200 is in a first charge state in which the first battery pack 110 and the second battery pack 120 can be charged simultaneously; when the charge switching enable is low, the charge control module 200 is in the second charge state in which the second battery pack 120 can be charged alone.
In the power supply apparatus 1000 and the control method of the power supply apparatus 1000 according to the embodiment of the invention, the voltage sampling module 400 is used to detect the voltage of the power supply module 100, and the detected data is sent to the controller 500 for processing, so that the controller 500 sends the charging switching signal to the charging control module 200 according to the voltage detection data to control the charging control module 200 to switch the charging state, and different battery packs can be charged in different charging states. As such, by switching the charging state by the charging control module 200, the unbalance between the first battery stack 110 and the second battery stack 120 may be solved.
In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example" or "some examples" or the like means that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the term "connected" is to be interpreted broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; may include direct connection, indirect connection through an intermediary, and communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A power supply device characterized by comprising:
a power supply assembly comprising a first battery pack and a second battery pack connected in series, the first battery pack and the second battery pack together for providing a first voltage, the second battery pack for providing a second voltage;
a charging control module switchable to a first charging state in which the first battery pack and the second battery pack can be charged simultaneously or a second charging state; in the second charging state, the second battery pack can be charged alone.
2. The power supply apparatus of claim 1, wherein the charging control module comprises an electronic switch.
3. The power supply device according to claim 2, wherein the electronic switch comprises a first connection end, a second connection end and a third connection end, the first connection end is used for connecting a first end of the first battery pack, the second connection end is used for connecting a second end of the first battery pack, the second end of the first battery pack is connected with the second battery pack, and the third connection end is used for connecting charging; wherein, the first and the second end of the pipe are connected with each other,
when the first connection end is conducted with the third connection end, the charging control module is in the first charging state; when the second connection end is conducted with the third connection end, the charging control module is in the second charging state.
4. The power supply device of claim 1, wherein the power supply device includes a charging port, and the charging control module connects the charging port and the power supply assembly.
5. The power supply device according to claim 1, wherein the first battery pack includes a plurality of first batteries, the second battery pack includes a plurality of second batteries, and the charge control module switches to the second charge state in a case where a voltage difference between a first average voltage of the plurality of first batteries and a second average voltage of the plurality of second batteries is greater than a first preset voltage difference; and under the condition that the voltage difference is smaller than the first preset voltage difference, the charging control module is switched to the first charging state.
6. The power supply apparatus according to claim 5, further comprising a voltage sampling module for detecting a voltage of each of the first batteries and a voltage of each of the second batteries.
7. The power supply device according to claim 1, wherein the first battery pack includes a plurality of first batteries, the second battery pack includes a plurality of second batteries, and the power supply device further includes a voltage sampling module configured to detect a voltage of each of the first batteries and a voltage of each of the second batteries, and obtain voltage detection data;
the power supply equipment further comprises a controller, the controller is connected with the voltage sampling module, and the controller is used for receiving the voltage detection data transmitted by the voltage sampling module, generating a charging switching signal according to the voltage detection data to control the charging control module to be switched into the first charging state or the second charging state.
8. The power supply device according to claim 1, further comprising a charging current detection module configured to detect a charging current of the power supply component to implement constant current charging.
9. The power supply device according to claim 1, further comprising a master switch for turning on or off an input or an output of the power supply component.
10. The power supply apparatus according to claim 1, further comprising a first emergency start output interface for connecting to a first type of external load and a second emergency start output interface for connecting to a second type of external load; wherein, the first and the second end of the pipe are connected with each other,
the first battery pack and the second battery pack output power through the first emergency starting output interface so as to supply the first external load to strike fire;
the second battery pack outputs power supply through the second emergency starting output interface so as to supply the second type of external load to strike fire;
the first emergency starting output interface and the second emergency starting output interface are the same interface or different interfaces.
11. The power supply apparatus according to claim 10, wherein the first type of external load includes a vehicle having a starting voltage of 24V, and the second type of external load includes a vehicle having a starting voltage of 12V.
12. A control method for a power supply device, the power supply device comprising a power supply assembly and a charging control module, the power supply assembly comprising a first battery pack and a second battery pack connected in series, the first battery pack and the second battery pack together being arranged to provide a first voltage, the second battery pack being arranged to provide a second voltage; the control method comprises the following steps:
controlling the charging control module to be switched to a first charging state or a second charging state, wherein in the first charging state, the first battery pack and the second battery pack can be charged simultaneously; in the second charging state, the second battery pack can be charged alone.
13. The control method of claim 12, wherein the first battery pack includes a plurality of first batteries, the second battery pack includes a plurality of second batteries, and the controlling the charge control module to switch to the first charge state or the second charge state comprises:
under the condition that the voltage difference between the first average voltages of the first batteries and the second average voltages of the second batteries is larger than a first preset voltage difference, controlling the charging control module to be switched to the second charging state;
and under the condition that the voltage difference is smaller than the first preset voltage difference, controlling the charging control module to be switched to the first charging state until the power supply assembly is fully charged.
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| CN202211357608.0A CN115663957A (en) | 2022-11-01 | 2022-11-01 | Power supply apparatus and control method of power supply apparatus |
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| CN202211357608.0A CN115663957A (en) | 2022-11-01 | 2022-11-01 | Power supply apparatus and control method of power supply apparatus |
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| CN202211357608.0A Pending CN115663957A (en) | 2022-11-01 | 2022-11-01 | Power supply apparatus and control method of power supply apparatus |
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