Battery management device with program-controlled output and program-controlled power supply

Abstract

The present invention relates to the field of battery power supply technology, and discloses a battery management device with program-controlled output and a program-controlled power supply. The battery management device with program-controlled output includes a plurality of battery groups and a program-controlled output control circuit, wherein the output ends of the plurality of battery groups are connected to the input ends of the program-controlled output control circuit; wherein the program-controlled output control circuit is used to collect the output voltages of the plurality of battery groups when the plurality of battery groups are discharged; and the program-controlled output control circuit is also used to generate a corresponding power supply voltage according to the output voltage and output it to a load element. In the present invention, when a plurality of battery groups with the same voltage or different voltage levels are discharged, the program-controlled output control circuit can control the discharge of the plurality of battery groups and output the required voltage level, and can seamlessly switch between two or more parallel battery groups when discharging. The technical problem that a single battery group is difficult to supply power for a long time and that program-controlled discharge cannot be performed in sequence when combined into a plurality of battery groups for power supply is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery power supply, and in particular to a battery management device with program-controlled output and a program-controlled power supply. Background Art

[0002] At present, when users use power supply equipment outdoors, they need to use electricity continuously for a long time, and the users are not next to the power supply equipment, which may cause many difficulties. For example, when the capacity of a single battery cannot meet the requirements of long-term use, users need to frequently replace batteries. At this time, replacing batteries may affect the user's ongoing work. If a single battery pack is used to provide power, the battery pack capacity is too large, which will cause the power supply equipment to be too large and heavy. Not only is the price high, but it may also be unavailable on the market and needs to be customized from the power supply equipment manufacturer.

[0003] In addition, there are many types of electrical equipment, all equipped with batteries of various models and specifications. Users may have purchased a variety of electrical equipment over the years, which will be equipped with multiple batteries of different specifications. When an appliance is not in use, the battery equipped with the appliance is in an invalid state. If these batteries can be used effectively, it will greatly save users money and facilitate users to use, and batteries of different voltage levels can be processed according to user needs to obtain the voltage output that users want. The existing battery output is a single battery group output. There is no good solution when multiple battery groups need to be connected in parallel, especially when battery groups of different voltage levels need to be discharged in sequence under program control.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide a battery management device with programmable output and a programmable power supply, aiming to solve the technical problems that the existing single battery group power supply is difficult to supply power for a long time and cannot be programmed to discharge in sequence when combined into multiple battery groups.

[0006] To achieve the above object, the present invention provides a battery management device with program-controlled output, which includes a plurality of battery packs and a program-controlled output control circuit, wherein the output ends of the plurality of battery packs are connected to the input end of the program-controlled output control circuit; wherein:

[0007] The program-controlled output control circuit is used to collect the output voltages of the plurality of battery packs when the plurality of battery packs are discharging;

[0008] The programmable output control circuit is also used to generate a corresponding power supply voltage according to the output voltage and output it to the load element.

[0009] Preferably, the programmable output control circuit includes a multi-channel battery pack input circuit, a switch control circuit and a power supply output circuit;

[0010] Among them, the input end of the multi-way battery pack input circuit is connected to the several battery packs, the output end of the multi-way battery pack input circuit is connected to the input end of the switch control circuit, the output end of the switch control circuit is connected to the input end of the power supply output circuit, and the output end of the power supply output circuit is connected to the load element.

[0011] Preferably, the multi-channel battery pack input circuit comprises a plurality of input battery packs of the same voltage level or different voltage levels; wherein the input battery packs are connected in parallel with each other.

[0012] Preferably, the program-controlled output control circuit further comprises a multi-channel analog-to-digital voltage acquisition circuit, the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit is connected to the input end of the multi-channel battery pack input circuit, and the output end of the multi-channel analog-to-digital voltage acquisition circuit is connected to the input end of the switch control circuit; wherein the multi-channel analog-to-digital voltage acquisition circuit is used to acquire the battery status of each battery pack in the multi-channel battery pack input circuit;

[0013] The switch control circuit is used to perform discharge control according to the battery state and a preset discharge sequence.

[0014] Preferably, the multi-channel battery pack input circuit includes a first battery pack, a first voltage-stabilizing diode, a second voltage-stabilizing diode, a first resistor, a second resistor and a first capacitor;

[0015] Among them, the anode of the first Zener diode is connected to the first battery group, the cathode of the first Zener diode is connected to the cathode of the second Zener diode, the anode of the second Zener diode is connected to the first battery group, the cathode of the second Zener diode is connected to the first end of the first resistor, the second end of the first resistor is connected to the first end of the second resistor, the second end of the second resistor is grounded, the first end of the second resistor is connected to the first end of the first capacitor, the second end of the first capacitor is grounded, and the first end of the first capacitor is connected to the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit.

[0016] Preferably, the switch control circuit comprises a third resistor, a first MOS transistor and a second MOS transistor;

[0017] Among them, the gate of the second MOS tube is connected to the output end of the multi-channel analog-to-digital voltage acquisition circuit, the source of the second MOS tube is grounded, the drain of the second MOS tube is connected to the first end of the third resistor, the second end of the third resistor is connected to the gate of the first MOS tube, the drain of the first MOS tube is connected to the power supply output circuit, and the source of the first MOS tube is connected to the multi-channel battery pack input circuit.

[0018] Preferably, the switch control circuit further includes a fourth resistor and a second capacitor;

[0019] Among them, the first end of the fourth resistor is connected to the multi-channel battery pack input circuit, the first end of the fourth resistor is connected to the first end of the second capacitor, the second end of the fourth resistor is connected to the second end of the second capacitor, the first end of the second capacitor is connected to the source of the first MOS tube, and the second end of the second capacitor is connected to the gate of the first MOS tube.

[0020] Preferably, the switch control circuit further includes a fifth resistor and a third capacitor;

[0021] Among them, the first end of the fifth resistor is connected to the multi-channel analog-to-digital voltage acquisition circuit, the first end of the fifth resistor is connected to the first end of the third capacitor, the second end of the fifth resistor is connected to the second end of the third capacitor, the first end of the third capacitor is connected to the gate of the second MOS tube, and the second end of the third capacitor is connected to the source of the second MOS tube.

[0022] Preferably, the programmable output control circuit further includes a boost and buck circuit, the input end of the boost and buck circuit is connected to the output end of the multi-channel battery pack input circuit, the output end of the boost and buck circuit is connected to the input end of the power supply output circuit, and the output end of the power supply output circuit is connected to the load element; wherein,

[0023] The voltage step-up and step-down circuit is used to control discharge according to the battery state and a preset discharge sequence.

[0024] In addition, to achieve the above-mentioned purpose, the present invention further proposes a programmable power supply, which includes the battery management device with programmable output as described above.

[0025] The technical solution of the present invention proposes a battery management device with program-controlled output, which includes a plurality of battery groups and a program-controlled output control circuit, wherein the output ends of the plurality of battery groups are connected to the input ends of the program-controlled output control circuit; wherein the program-controlled output control circuit is used to collect the output voltages of the plurality of battery groups when the plurality of battery groups are discharging; and the program-controlled output control circuit is also used to generate a corresponding power supply voltage according to the output voltage and output it to a load element. In the above manner, when a plurality of battery groups of the same voltage level or different voltage levels are discharging, the program-controlled output control circuit can control the discharge of the plurality of battery groups and output the required voltage level, and can seamlessly switch between two or more parallel battery groups when discharging. This solves the technical problem that the existing single battery group is difficult to supply power for a long time, and the program-controlled discharge cannot be performed in sequence when combined into multiple battery groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A functional module diagram of an embodiment of a battery management device with program-controlled output according to the present invention;

[0027] Figure 2 A schematic diagram of a functional module of a program-controlled output control circuit of an embodiment of a battery management device with program-controlled output according to the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of a program-controlled output control circuit of an embodiment of a battery management device with program-controlled output of the present invention.

[0029] Description of Figure Numbers:

[0030]

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] The invention provides a battery management device with program-controlled output.

[0036] Reference Figure 1 In an embodiment of the present invention, the program-controlled output battery management device comprises a plurality of battery packs 100 and a program-controlled output control circuit 200, wherein the output ends of the plurality of battery packs 100 are connected to the input end of the program-controlled output control circuit 200; wherein,

[0037] The program-controlled output control circuit 200 is used to collect the output voltages of the battery packs 100 when the battery packs 100 are discharging. In this embodiment, the program-controlled output control circuit 200 may include a multi-channel battery pack input circuit, a switch control circuit, and a power supply output circuit; the program-controlled output control circuit 200 may also include a multi-channel analog-to-digital voltage collection circuit; wherein the collection end of the multi-channel analog-to-digital voltage collection circuit is connected to the input end of the multi-channel battery pack input circuit, and the output end of the multi-channel analog-to-digital voltage collection circuit is connected to the input end of the switch control circuit.

[0038] Specifically, the program-controlled output control circuit 200 collects the output voltage of the battery packs 100 when the battery packs 100 are discharging, that is, the multi-channel analog-to-digital voltage collection circuit collects the input voltage or battery status of the multi-channel battery pack input circuit. In addition, the multi-channel analog-to-digital voltage collection circuit can also be a communication circuit for communication between the multi-channel battery pack input circuit and the switch control circuit.

[0039] The program-controlled output control circuit 200 is also used to generate a corresponding power supply voltage according to the output voltage and output it to the load element. In this embodiment, the program-controlled output control circuit 200 may include a multi-way battery pack input circuit, a switch control circuit, and a power supply output circuit; wherein the input end of the multi-way battery pack input circuit is connected to the plurality of battery packs, the output end of the multi-way battery pack input circuit is connected to the input end of the switch control circuit, the output end of the switch control circuit is connected to the input end of the power supply output circuit, and the output end of the power supply output circuit is connected to the load element.

[0040] Specifically, the multi-channel analog-to-digital voltage acquisition circuit acquires the input voltage or battery status of the multi-channel battery pack input circuit; the switch control circuit controls the discharge of the plurality of battery packs 100 according to the acquired input voltage or battery status and outputs the corresponding power supply voltage to the load element in a preset discharge order. It is easy to understand that the preset discharge order can be set by the user according to actual conditions.

[0041] Further, refer to Figure 2 , Figure 2 This is a schematic diagram of the functional modules of a program-controlled output control circuit of an embodiment of a battery management device with program-controlled output according to the present invention; the program-controlled output control circuit 200 includes a multi-channel battery pack input circuit 201, a switch control circuit 202 and a power supply output circuit 203;

[0042] Among them, the input end of the multi-way battery pack input circuit 201 is connected to the several battery packs 100, the output end of the multi-way battery pack input circuit 201 is connected to the input end of the switch control circuit 202, the output end of the switch control circuit 202 is connected to the input end of the power supply output circuit 203, and the output end of the power supply output circuit 203 is connected to the load element.

[0043] It should be noted that the program-controlled output control circuit 200 further includes a multi-channel analog-to-digital voltage acquisition circuit 204; wherein the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit 204 is connected to the input end of the multi-channel battery pack input circuit 201, and the output end of the multi-channel analog-to-digital voltage acquisition circuit 204 is connected to the input end of the switch control circuit 202. When the battery packs 100 are discharging, the program-controlled output control circuit 200 acquires the output voltage of the battery packs 100, that is, the multi-channel analog-to-digital voltage acquisition circuit acquires the input voltage or battery status of the multi-channel battery pack input circuit.

[0044] Furthermore, the multi-channel battery pack input circuit 201 includes a plurality of input battery packs of the same voltage level or different voltage levels; wherein the input battery packs are connected in parallel with each other.

[0045] It should be noted that the multi-channel battery pack input circuit 201 connects multiple input battery packs of the same voltage level or different voltage levels in parallel.

[0046] Furthermore, the program-controlled output control circuit 200 further includes a multi-channel analog-to-digital voltage acquisition circuit 204, the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit 204 is connected to the input end of the multi-channel battery pack input circuit 201, and the output end of the multi-channel analog-to-digital voltage acquisition circuit 204 is connected to the input end of the switch control circuit 202; wherein,

[0047] The multi-channel analog-to-digital voltage acquisition circuit 204 is used to acquire the battery status of each battery pack in the multi-channel battery pack input circuit 201;

[0048] The switch control circuit 202 is used to control discharge according to the battery status and a preset discharge sequence.

[0049] It should be noted that the multi-channel analog-to-digital voltage acquisition circuit can also be a communication circuit used for communication between the multi-channel battery pack input circuit and the switch control circuit.

[0050] Further, refer to Figure 3 , Figure 3 The structure diagram of the program-controlled output control circuit 200 of an embodiment of the battery management device with program-controlled output of the present invention; the multi-channel battery group input circuit 201 includes a first battery group U1, a first voltage-stabilizing diode D1, a second voltage-stabilizing diode D2, a first resistor R1, a second resistor R2 and a first capacitor C1;

[0051] Among them, the anode of the first Zener diode D1 is connected to the first battery pack U1, the cathode of the first Zener diode D1 is connected to the cathode of the second Zener diode D2, the anode of the second Zener diode D2 is connected to the first battery pack U1, the cathode of the second Zener diode D2 is connected to the first end of the first resistor R1, the second end of the first resistor R1 is connected to the first end of the second resistor R2, the second end of the second resistor R2 is grounded, the first end of the second resistor R2 is connected to the first end of the first capacitor C1, the second end of the first capacitor C1 is grounded, and the first end of the first capacitor C1 is connected to the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit 204.

[0052] It should be noted that the multi-channel battery pack input circuit 201 can connect multiple input battery packs of the same voltage level or different voltage levels in parallel. The multi-channel battery pack input circuit 201 includes a first battery pack U1 and a first voltage regulator diode D1, a second voltage regulator diode D2, a first resistor R1, a second resistor R2 and a first capacitor C1 connected thereto; the multi-channel battery pack input circuit 201 can also include a second battery pack, a third battery pack, etc. (not shown), and the remaining components can refer to the connection components of the first battery pack U1. The multi-channel battery pack input circuit 201 is connected to the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit 204. When the plurality of battery packs 100 are discharging, the program-controlled output control circuit 200 acquires the output voltage of the plurality of battery packs 100, that is, the multi-channel analog-to-digital voltage acquisition circuit 204 acquires the input voltage or battery status of the multi-channel battery pack input circuit 201.

[0053] Furthermore, the switch control circuit 202 includes a third resistor R3, a first MOS transistor Q1 and a second MOS transistor Q2;

[0054] Among them, the gate of the second MOS tube Q2 is connected to the output end of the multi-channel analog-to-digital voltage acquisition circuit 204, the source of the second MOS tube Q2 is grounded, the drain of the second MOS tube Q2 is connected to the first end of the third resistor R3, the second end of the third resistor R3 is connected to the gate of the first MOS tube Q1, the drain of the first MOS tube Q1 is connected to the power supply output circuit 203, and the source of the first MOS tube Q1 is connected to the multi-channel battery pack input circuit 201.

[0055] It should be noted that the switch control circuit 202 includes a first MOS transistor Q1 and a second MOS transistor Q2. The first MOS transistor Q1 and the second MOS transistor Q2 serve as switching switches. It is easy to understand that the switching switch can be a mechanical switch or a MOS transistor switch, which is not limited in this embodiment.

[0056] Furthermore, the switch control circuit 202 further includes a fourth resistor R4 and a second capacitor C2;

[0057] Among them, the first end of the fourth resistor R4 is connected to the multi-channel battery pack input circuit 201, the first end of the fourth resistor R4 is connected to the first end of the second capacitor C2, the second end of the fourth resistor R4 is connected to the second end of the second capacitor C2, the first end of the second capacitor C2 is connected to the source of the first MOS tube Q1, and the second end of the second capacitor C2 is connected to the gate of the first MOS tube Q1.

[0058] It should be noted that the switch control circuit 202 also includes a fourth resistor R4 and a second capacitor C2. The fourth resistor R4 and the second capacitor C2 are connected to the first MOS transistor Q1. The fourth resistor R4 and the second capacitor C2 are combined to form a protection circuit for the first MOS transistor Q1 to prevent the first MOS transistor Q1 from breaking down.

[0059] Furthermore, the switch control circuit 202 further includes a fifth resistor R5 and a third capacitor C3;

[0060] Among them, the first end of the fifth resistor R5 is connected to the multi-channel analog-to-digital voltage acquisition circuit 204, the first end of the fifth resistor R5 is connected to the first end of the third capacitor C3, the second end of the fifth resistor R5 is connected to the second end of the third capacitor C3, the first end of the third capacitor C3 is connected to the gate of the second MOS tube Q2, and the second end of the third capacitor C3 is connected to the source of the second MOS tube Q2.

[0061] It should be noted that the switch control circuit 202 also includes a fifth resistor R5 and a third capacitor C3. The fifth resistor R5 and the third capacitor C3 are connected to the second MOS tube Q2. The fifth resistor R5 and the third capacitor C3 are combined to form a protection circuit for the second MOS tube Q2 to prevent the second MOS tube Q2 from breaking down.

[0062] Furthermore, the program-controlled output control circuit 200 further includes a boost and buck circuit 205, the input end of the boost and buck circuit 205 is connected to the output end of the multi-channel battery pack input circuit 201, the output end of the boost and buck circuit 205 is connected to the input end of the power supply output circuit 203, and the output end of the power supply output circuit 203 is connected to the load element; wherein,

[0063] The voltage step-up and step-down circuit 205 is used to control discharge according to the battery status and a preset discharge sequence.

[0064] It should be noted that the program-controlled output control circuit 200 also includes a boost and buck circuit 205, and the multi-channel analog-to-digital voltage acquisition circuit 204 acquires the input voltage or battery status of the multi-channel battery group input circuit; the switch control circuit 202 performs discharge control on the plurality of battery groups 100 according to the acquired input voltage or the battery status and outputs the corresponding power supply voltage to the load element in accordance with the preset discharge sequence. It is easy to understand that the preset discharge sequence can be set by the user according to actual conditions, and the boost and buck circuit 205 can be used to replace the switch control circuit 202, or the boost and buck circuit 205 can be used in combination with the switch control circuit 202 to achieve discharge control on the plurality of battery groups 100 according to the acquired input voltage or the battery status and output the corresponding power supply voltage to the load element in accordance with the preset discharge sequence.

[0065] To achieve the above object, the present invention further proposes a programmable power supply, which includes the battery management device with programmable output as described above. The specific structure of the battery management device with programmable output refers to the above embodiment. Since the present invention adopts all the technical solutions of all the embodiments of the battery management device with programmable output, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0066] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0067] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0068] In addition, for technical details not fully described in this embodiment, reference can be made to the battery management device with program-controlled output provided in any embodiment of the present invention, and will not be repeated here.

[0069] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0070] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0071] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0072] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery management device with program-controlled output, characterized in that: The program-controlled output battery management device comprises a plurality of battery packs and a program-controlled output control circuit, wherein the output ends of the plurality of battery packs are connected to the input end of the program-controlled output control circuit; wherein, The program-controlled output control circuit is used to collect the output voltages of the plurality of battery packs when the plurality of battery packs are discharging; The program-controlled output control circuit is further used to generate a corresponding power supply voltage according to the output voltage and output it to a load element; The program-controlled output control circuit includes a multi-channel battery pack input circuit, a switch control circuit and a power supply output circuit; Wherein, the input end of the multi-way battery pack input circuit is connected to the plurality of battery packs, the output end of the multi-way battery pack input circuit is connected to the input end of the switch control circuit, the output end of the switch control circuit is connected to the input end of the power supply output circuit, and the output end of the power supply output circuit is connected to the load element; The multi-channel battery pack input circuit includes a first battery pack, a first voltage-stabilizing diode, a second voltage-stabilizing diode, a first resistor, a second resistor and a first capacitor; Wherein, the anode of the first zener diode is connected to the first battery pack, the cathode of the first zener diode is connected to the cathode of the second zener diode, the anode of the second zener diode is connected to the first battery pack, the cathode of the second zener diode is connected to the first end of the first resistor, the second end of the first resistor is connected to the first end of the second resistor, the second end of the second resistor is grounded, the first end of the second resistor is connected to the first end of the first capacitor, the second end of the first capacitor is grounded, and the first end of the first capacitor is connected to the collection end of the multi-channel analog-to-digital voltage collection circuit; The switch control circuit includes a third resistor, a first MOS transistor and a second MOS transistor; Among them, the gate of the second MOS tube is connected to the output end of the multi-channel analog-to-digital voltage acquisition circuit, the source of the second MOS tube is grounded, the drain of the second MOS tube is connected to the first end of the third resistor, the second end of the third resistor is connected to the gate of the first MOS tube, the drain of the first MOS tube is connected to the power supply output circuit, and the source of the first MOS tube is connected to the multi-channel battery pack input circuit.

2. The battery management device with program-controlled output as claimed in claim 1, characterized in that: The multi-channel battery pack input circuit includes a plurality of input battery packs of the same voltage level or different voltage levels; wherein the input battery packs are connected in parallel with each other.

3. The battery management device with program-controlled output as claimed in claim 2, characterized in that: The program-controlled output control circuit also includes a multi-channel analog-to-digital voltage acquisition circuit, the acquisition end of the multi-channel analog-to-digital voltage acquisition circuit is connected to the input end of the multi-channel battery pack input circuit, and the output end of the multi-channel analog-to-digital voltage acquisition circuit is connected to the input end of the switch control circuit; wherein, The multi-channel analog-to-digital voltage acquisition circuit is used to acquire the battery status of each battery pack in the multi-channel battery pack input circuit; The switch control circuit is used to perform discharge control according to the battery state and a preset discharge sequence.

4. The battery management device with program-controlled output as claimed in claim 3, characterized in that: The switch control circuit further includes a fourth resistor and a second capacitor; Among them, the first end of the fourth resistor is connected to the multi-channel battery pack input circuit, the first end of the fourth resistor is connected to the first end of the second capacitor, the second end of the fourth resistor is connected to the second end of the second capacitor, the first end of the second capacitor is connected to the source of the first MOS tube, and the second end of the second capacitor is connected to the gate of the first MOS tube.

5. The battery management device with program-controlled output as claimed in claim 3, characterized in that: The switch control circuit also includes a fifth resistor and a third capacitor; Among them, the first end of the fifth resistor is connected to the multi-channel analog-to-digital voltage acquisition circuit, the first end of the fifth resistor is connected to the first end of the third capacitor, the second end of the fifth resistor is connected to the second end of the third capacitor, the first end of the third capacitor is connected to the gate of the second MOS tube, and the second end of the third capacitor is connected to the source of the second MOS tube.

6. The battery management device with program-controlled output as claimed in claim 3, characterized in that: The program-controlled output control circuit also includes a boost and buck circuit, the input end of the boost and buck circuit is connected to the output end of the multi-channel battery pack input circuit, the output end of the boost and buck circuit is connected to the input end of the power supply output circuit, and the output end of the power supply output circuit is connected to the load element; wherein, The voltage step-up and step-down circuit is used to control discharge according to the battery state and a preset discharge sequence.

7. A program-controlled power supply, characterized in that: The programmable power supply includes a battery management device with programmable output as described in any one of claims 1 to 6.

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