Power regulation circuit and battery

Abstract

The utility model discloses a power regulation circuit and a battery, and relates to the technical field of battery power regulation, the disclosed power regulation circuit comprises a detection module, a comparison module and a control module; the control module is respectively connected with the power supply module, the detection module and the comparison module; the detection module is respectively connected with the power supply module and the comparison module; the detection module is used for acquiring a charged power signal of the power supply module when detecting that the current indoor temperature does not reach a preset temperature threshold value, and transmitting the charged power signal to the comparison module; the comparison module is used for comparing the charge power signal of the power supply module at the current indoor temperature with a preset power signal to obtain a power difference signal and transmitting the power difference signal to the control module; and the control module is used for adjusting the current charged power of the power supply module to preset power according to the power difference signal.

Description

Technical Field

[0001] This utility model relates to the field of battery power regulation technology, and in particular to a power regulation circuit and a battery. Background Technology

[0002] Currently, the impact of room temperature on battery performance mainly includes capacity and material activity: temperature directly affects the battery's capacity and material activity under operating conditions. This is because the electrochemical reactions at the electrode / electrolyte interface are closely related to ambient temperature. As temperature increases, the electrode reaction rate increases, thereby improving the power output of the power module; conversely, a decrease in temperature leads to a decrease in electrode reaction rate and a decrease in power output. Charge and discharge performance: temperature also affects the electrolyte transport rate. When the temperature rises, the electrolyte transport rate accelerates, improving the charge and discharge performance of the power module; when the temperature falls, the electrolyte transport rate slows down, affecting the charge and discharge performance of the power module. However, excessively high temperatures can disrupt the chemical balance within the power module, negatively impacting its performance.

[0003] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0004] The main purpose of this invention is to provide a power regulation circuit and a battery, which aims to solve the technical problem of temperature changes affecting the battery's SOC power.

[0005] To achieve the above objectives, this utility model proposes a power regulation circuit, which includes:

[0006] The module includes a detection module, a comparison module, and a control module.

[0007] The control module is connected to the power module, the detection module, and the comparison module respectively; the detection module is connected to the power module and the comparison module respectively.

[0008] The detection module is used to acquire the charged power signal of the power module when it detects that the current indoor temperature has not reached the preset temperature threshold, and transmit the charged power signal to the comparison module.

[0009] The comparison module is used to compare the charged power signal of the power module at the current indoor temperature with a preset power signal to obtain a power difference signal, and transmit the power difference signal to the control module.

[0010] The control module is used to adjust the current charged power of the power supply module to a preset power according to the power difference signal.

[0011] In one embodiment, the detection module includes:

[0012] Temperature detection subunit and power detection subunit;

[0013] The temperature detection subunit is connected to the power detection subunit, the power supply module, and the control module, respectively; the power detection subunit is connected to the comparison module and the power supply module, respectively.

[0014] The temperature detection subunit is used to detect whether the current indoor temperature has reached the preset temperature threshold. If not, it transmits an execution signal to the power detection subunit.

[0015] The power detection subunit is used to acquire the charged power signal of the power module according to the execution signal, and transmit the charged power signal to the comparison module.

[0016] In one embodiment, the temperature detection subunit includes:

[0017] Temperature sensor, first resistor, and second resistor;

[0018] The first end of the first resistor is connected to the power module, and the second end of the first resistor is connected to the first end of the temperature sensor and the first end of the second resistor, respectively.

[0019] The first end of the temperature sensor is connected to the first end of the second resistor, and the second end of the temperature sensor is connected to the second end of the second resistor and the control module, respectively.

[0020] The second end of the second resistor is connected to the control module.

[0021] In one embodiment, the power detection subunit includes:

[0022] Third resistor;

[0023] The first end of the third resistor is connected to the power supply module, and the second end of the third resistor is connected to both the control module and the comparison module.

[0024] In one embodiment, the comparison module includes:

[0025] Auxiliary sub-units and comparison sub-units;

[0026] The auxiliary subunit is connected to both the control module and the comparison subunit; the comparison subunit is connected to the control module.

[0027] The auxiliary subunit is used to amplify the charged power signal and transmit the amplified charged power signal to the comparison subunit;

[0028] The comparison subunit is used to compare the amplified charged power signal with the preset power signal to obtain the power difference signal, and transmit the power difference signal to the control module.

[0029] In one embodiment, the auxiliary subunit includes:

[0030] Amplifier, fourth resistor, and fifth resistor;

[0031] The positive terminal of the amplifier is connected to the control module and the second terminal of the third resistor, the negative terminal of the amplifier is connected to the second terminal of the fourth resistor and the first terminal of the fifth resistor, and the output terminal of the amplifier is connected to the first terminal of the fourth resistor and the comparator subunit.

[0032] The first end of the fourth resistor is connected to the comparator subunit, and the second end of the fourth resistor is connected to the first end of the fifth resistor;

[0033] The second terminal of the fifth resistor is grounded.

[0034] In one embodiment, the comparison subunit includes:

[0035] Comparator, sixth resistor, seventh resistor, eighth resistor, ninth resistor, and reference power supply;

[0036] The positive terminal of the comparator is connected to the second terminal of the sixth resistor and the first terminal of the seventh resistor, respectively; the negative terminal of the comparator is connected to the second terminal of the eighth resistor and the first terminal of the ninth resistor, respectively; and the output terminal of the comparator is connected to the second terminal of the sixth resistor and the control module, respectively.

[0037] The first end of the sixth resistor is connected to the output terminal of the amplifier and the first end of the fourth resistor, respectively; the second end of the sixth resistor is connected to the first end of the seventh resistor.

[0038] The second segment of the seventh resistor is grounded; the first end of the eighth resistor is connected to the reference power supply.

[0039] In one embodiment, the control module includes:

[0040] microcontroller;

[0041] The ADC pin of the microcontroller is connected to the detection module and the comparison module respectively, the input pin of the microcontroller is connected to the comparison module, and the power adjustment pin of the microcontroller is connected to the power supply module.

[0042] In one embodiment, the power regulation circuit further includes:

[0043] Storage module;

[0044] The storage module is connected to the control module;

[0045] The storage module is used to store the historical adjustment data of the control module.

[0046] This utility model also proposes a battery, which includes the power regulation circuit described above.

[0047] One or more technical solutions proposed in this utility model have at least the following technical effects:

[0048] The power regulation circuit of this utility model includes: a detection module, a comparison module, and a control module; the control module is connected to the power supply module, the detection module, and the comparison module respectively; the detection module is connected to the power supply module and the comparison module respectively; the detection module is used to acquire the charged power signal of the power supply module when the current indoor temperature is detected to be below a preset temperature threshold, and transmit the charged power signal to the comparison module; the comparison module is used to compare the charged power signal of the power supply module at the current indoor temperature with a preset power signal to obtain a power difference signal, and transmit the power difference signal to the control module; the control module is used to adjust the current charged power of the power supply module to the preset power according to the power difference signal. Compared with the prior art, this utility model can more accurately adjust the charged power of the battery by acquiring the charged power signal of the current indoor temperature in real time and comparing it with the preset power signal to obtain the power difference signal. Attached Figure Description

[0049] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0050] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1This is a first structural schematic diagram of the power regulation circuit according to an embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the second structure of the power regulation circuit according to an embodiment of the present invention;

[0053] Figure 3 This is a schematic diagram of the third structure of the power regulation circuit in an embodiment of this utility model.

[0054] Explanation of icon numbers:

[0055] label name label name 1 Control module 2 Detection module 3 Comparison module 4 Power module 5 Storage module 21 Power detection subunit 22 Temperature detection subunit 31 Auxiliary subunit 32 Comparison subunit CGQ Temperature sensor FDQ Amplifier BJQ comparator <![CDATA[V ref ]]> Reference power supply R1~R9 First resistor to ninth resistor MUC microcontroller

[0056] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0058] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0059] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0060] Currently, the impact of room temperature on battery performance mainly includes capacity and material activity: temperature directly affects the battery's capacity and material activity under operating conditions. This is because the electrochemical reactions at the electrode / electrolyte interface are closely related to ambient temperature. As temperature increases, the electrode reaction rate increases, thereby improving the power output of the power module; conversely, a decrease in temperature leads to a decrease in electrode reaction rate and a decrease in power output. Charge and discharge performance: temperature also affects the electrolyte transport rate. When the temperature rises, the electrolyte transport rate accelerates, improving the charge and discharge performance of the power module; when the temperature falls, the electrolyte transport rate slows down, affecting the charge and discharge performance of the power module. However, excessively high temperatures can disrupt the chemical balance within the power module, negatively impacting its performance.

[0061] Traditional methods for regulating battery charge power involve altering the battery's internal structure, such as its capacity and material activity. This approach is cumbersome and costly.

[0062] To address the above problems, this utility model proposes a power regulation circuit, aiming to solve the technical problem of insufficient precision in battery charge power regulation.

[0063] refer to Figure 1 , Figure 1 This is a first structural schematic diagram of the power regulation circuit according to an embodiment of the present invention. The power regulation circuit includes:

[0064] Detection module 2, comparison module 3, and control module 1;

[0065] The control module 1 is connected to the power module 4, the detection module 2, and the comparison module 3 respectively; the detection module 2 is connected to the power module 4 and the comparison module 3 respectively.

[0066] The detection module 2 is used to acquire the charged power signal of the power module 4 when it is detected that the current indoor temperature has not reached the preset temperature threshold, and transmit the charged power signal to the comparison module 3.

[0067] The comparison module 3 is used to compare the charged power signal of the power module 4 at the current indoor temperature with a preset power signal to obtain a power difference signal, and transmit the power difference signal to the control module 1;

[0068] The control module 1 is used to adjust the current charged power of the power module 4 to a preset power according to the power difference signal.

[0069] It should be noted that the above-mentioned preset temperature threshold can be between 15 degrees Celsius and 26 degrees Celsius, and can be set and calibrated by the operator according to actual needs;

[0070] It should be noted that the above-mentioned charged power signal represents the charged power of the power module 4.

[0071] It should be noted that the preset power signal can be 90% to 100% of the output power, which can be set and calibrated by the operator according to actual needs;

[0072] It should be noted that the power difference signal mentioned above is the difference between the preset power signal and the charged power signal mentioned above, which can directly reflect the gap between the current actual battery charged power and the preset power.

[0073] In its implementation, the detection module 2 detects the current indoor temperature in real time. When the current indoor temperature exceeds or falls below the preset temperature threshold, it detects the charge power of the power module 4, i.e., acquires the charge power signal of the power module 4, and transmits the charge power signal to the comparison module 3. Upon receiving the charge power signal, the comparison module 3 outputs the preset power signal and compares it with the charge power signal to obtain the power difference signal. The power difference signal is then transmitted to the control module 1. The control module 1 outputs the current and voltage that need to be compensated based on the power difference signal, so that the current charge power of the voltage module 4 is adjusted to the preset power, thereby enabling the battery to have a stable output power in an environment with changing temperatures.

[0074] To reduce unnecessary power consumption in the aforementioned power regulation circuit and improve detection accuracy, in this embodiment, the detection module 2 is divided into a temperature detection section and a power detection section, as shown in the reference... Figure 2 as well as Figure 3 , Figure 2 This is a schematic diagram of the second structure of the power regulation circuit according to an embodiment of the present invention; Figure 3 This is a third structural schematic diagram of the power regulation circuit according to an embodiment of the present invention. The detection module 2 includes:

[0075] Temperature detection subunit 22 and power detection subunit 21;

[0076] The temperature detection subunit 22 is connected to the power detection subunit 21, the power supply module 4, and the control module 1, respectively; the power detection subunit 21 is connected to the comparison module 3 and the power supply module 4, respectively.

[0077] The temperature detection subunit 22 is used to detect whether the current indoor temperature has reached the preset temperature threshold. If not, it transmits an execution signal to the power detection subunit 21.

[0078] The power detection subunit 21 is used to acquire the charged power signal of the power module according to the execution signal, and transmit the charged power signal to the comparison module 3.

[0079] It should be noted that the above execution signal is a signal to notify the power detection subunit 21 to perform charged power detection, that is, to activate the power detection subunit 21.

[0080] In a specific implementation, the temperature detection subunit 22 is responsible for detecting the current indoor temperature in real time. When the current room temperature is detected to be below the preset temperature threshold, the execution signal is transmitted to the power detection subunit 21. The power detection subunit 21 will obtain the charged power signal of the voltage module 4 according to the execution signal and transmit the charged power signal to the comparison module 3.

[0081] In this embodiment, the temperature detection subunit 22 includes:

[0082] Temperature sensor CGQ, first resistor R1, and second resistor R2;

[0083] The first end of the first resistor R1 is connected to the power module 4, and the second end of the first resistor R1 is connected to the first end of the temperature sensor CGQ and the first end of the second resistor R2, respectively.

[0084] The first end of the temperature sensor CGQ is connected to the first end of the second resistor R2, and the second end of the temperature sensor CGQ is connected to the second end of the second resistor R2 and the control module 1 respectively.

[0085] The second end of the second resistor is connected to the control module 1.

[0086] It should be noted that the temperature sensor CGQ mentioned above can be a resistance temperature sensor or a thermistor temperature sensor, etc.

[0087] It should be noted that the first resistor R1 and the second resistor R2 mentioned above can be carbon film resistors or metal resistors, etc.

[0088] In the specific implementation, the temperature sensor CGQ is used to detect the current indoor temperature in real time. The first resistor R1 is used for voltage division. The second resistor R2 is used to protect the temperature sensor CGQ. The connection relationship of the temperature detection subunit 22 is as follows: the first end of the first resistor R1 is connected to the power module 4; the second end of the first resistor R1 is connected to the first end of the temperature sensor CGQ and the first end of the second resistor R2; the first end of the temperature sensor CGQ is connected to the first end of the second resistor R2; the second end of the temperature sensor CGQ is connected to the second end of the second resistor R2 and the control module 1; the second end of the second resistor is connected to the control module 1.

[0089] In this embodiment, the power detection subunit 21 includes:

[0090] Third resistor R3;

[0091] The first end of the third resistor R3 is connected to the power module 4, and the second end of the third resistor R3 is connected to the control module 1 and the comparison module 3 respectively.

[0092] It should be noted that the third resistor R3 mentioned above can be a metal film power resistor or a carbon film power resistor, etc.

[0093] In a specific implementation, the third resistor R3 is mainly used to detect the charged power in the voltage module 4. The first end of the third resistor R3 is connected to the power module 4, and the second end of the third resistor R3 is connected to the control module 1 and the comparison module 3 respectively.

[0094] To ensure the integrity of signal transmission in the circuit and to obtain accurate signal comparison results, in this embodiment, the comparison module 3 is divided into the auxiliary subunit 31 and the comparison subunit 32. The comparison module 3 includes:

[0095] Auxiliary subunit 31 and comparison subunit 32;

[0096] The auxiliary subunit 31 is connected to both the control module 1 and the comparison subunit 32; the comparison subunit 32 is connected to the control module 1.

[0097] The auxiliary subunit 31 is used to amplify the charged power signal and transmit the amplified charged power signal to the comparison subunit 32.

[0098] The comparison subunit 32 is used to compare the amplified charged power signal with the preset power signal to obtain the power difference signal, and transmit the power difference signal to the control module 1.

[0099] In a specific implementation, the auxiliary subunit 31 is used to amplify the charged power signal, which helps to improve signal strength and quality, enhance circuit stability, and make the output result more accurate. The comparison subunit 32 is used to compare the amplified charged power signal with the preset power signal to obtain the power difference signal, and transmit the power difference signal to the control module 1.

[0100] In this embodiment, the auxiliary subunit includes:

[0101] Amplifier FDQ, fourth resistor R4, and fifth resistor R5;

[0102] The positive terminal of the amplifier FDQ is connected to the control module 1 and the second terminal of the third resistor R3, respectively. The negative terminal of the amplifier FDQ is connected to the second terminal of the fourth resistor R4 and the first terminal of the fifth resistor R5, respectively. The output terminal of the amplifier FDQ is connected to the first terminal of the fourth resistor R4 and the comparator subunit 32, respectively.

[0103] The first end of the fourth resistor R4 is connected to the comparator subunit 32, and the second end of the fourth resistor R4 is connected to the first end of the fifth resistor R5.

[0104] The second terminal of the fifth resistor R5 is grounded.

[0105] It should be noted that the fourth resistor R4 and the fifth resistor R5 mentioned above can be carbon film resistors or metal resistors, etc.

[0106] It should be noted that the aforementioned amplifier FDQ can be a general signal amplifier or an advanced signal amplifier, etc.

[0107] In its specific implementation, the main function of the amplifier FDQ is to amplify the charged power signal. The fourth resistor R4 and the fifth resistor R5 serve as voltage divider protection and filtering. The internal connections of the auxiliary subunit 31 are as follows: the positive terminal of the amplifier FDQ is connected to the control module 1 and the second terminal of the third resistor R3; the negative terminal of the amplifier FDQ is connected to the second terminal of the fourth resistor R4 and the first terminal of the fifth resistor R5; the output terminal of the amplifier FDQ is connected to the first terminal of the fourth resistor R4 and the comparator subunit 32; the first terminal of the fourth resistor R4 is connected to the comparator subunit 32; the second terminal of the fourth resistor R4 is connected to the first terminal of the fifth resistor R5; and the second terminal of the fifth resistor R5 is grounded.

[0108] In this embodiment, the comparison subunit 32 includes:

[0109] Comparator BJQ, sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, and reference power supply V ref ;

[0110] The positive terminal of the comparator BJQ is connected to the second terminal of the sixth resistor R6 and the first terminal of the seventh resistor R7, respectively. The negative terminal of the comparator BJQ is connected to the second terminal of the eighth resistor R8 and the first terminal of the ninth resistor R9, respectively. The output terminal of the comparator BJQ is connected to the second terminal of the sixth resistor R6 and the control module 1, respectively.

[0111] The first end of the sixth resistor R6 is connected to the output terminal of the amplifier FDQ and the first end of the fourth resistor R4, respectively; the second end of the sixth resistor R6 is connected to the first end of the seventh resistor R7.

[0112] The second segment of the seventh resistor R7 is grounded; the first terminal of the eighth resistor R8 is connected to the reference power supply V. ref connect.

[0113] It should be noted that the above comparator BJQ can be an open-loop comparator or a regenerative comparator, etc.

[0114] It should be noted that the sixth resistor R6 to the ninth resistor R9 mentioned above can be carbon film resistors or metal resistors, etc.

[0115] In its specific implementation, the comparator BJQ compares the charged power signal with the preset power signal to obtain the power difference signal, and transmits the power difference signal to the control module 1. The sixth resistor R6 and the eighth resistor R8 serve as voltage divider protection, the seventh resistor R7 serves as filtering, and the ninth resistor R9 also serves as voltage divider protection. The internal connection of the comparator subunit 32 is as follows: the positive terminal of the comparator BJQ is connected to the second terminal of the sixth resistor R6 and the first terminal of the seventh resistor R7; the negative terminal of the comparator BJQ is connected to the second terminal of the eighth resistor R8 and the first terminal of the ninth resistor R9; the output terminal of the comparator BJQ is connected to the second terminal of the sixth resistor R6 and the control module 1; the first terminal of the sixth resistor R6 is connected to the output terminal of the amplifier FDQ and the first terminal of the fourth resistor R4; the second terminal of the sixth resistor R6 is connected to the first terminal of the seventh resistor R7; the second segment of the seventh resistor R7 is grounded; and the first terminal of the eighth resistor R8 is connected to the reference power supply V. ref connect.

[0116] In this embodiment, the control module 1 includes:

[0117] Microcontroller (MCU);

[0118] The ADC pin of the microcontroller MCU is connected to the detection module 2 and the comparison module 3 respectively. The input pin of the microcontroller MCU is connected to the comparison module 3. The power adjustment pin of the microcontroller MCU is connected to the power supply module 4.

[0119] It should be noted that the microcontroller (MCU) mentioned above can be a 32-bit microcontroller or a 16-bit microcontroller.

[0120] In the specific implementation, the ADC pin of the microcontroller MCU is mainly used for analog-to-digital conversion of the signal, the input pin of the microcontroller MCU is mainly used for receiving the power difference signal, and the output pin of the microcontroller MCU is mainly used for regulating the charge power of the power module 4.

[0121] In this embodiment, the power regulation circuit further includes:

[0122] Storage module 5;

[0123] The storage module 5 is connected to the control module 1;

[0124] The storage module 5 is used to store the historical adjustment data of the control module 1.

[0125] It should be noted that the aforementioned storage module 5 can be a semiconductor memory or a random access memory, etc.

[0126] In its implementation, the storage module 5 is mainly used to store the historical adjustment data of the control module 1 for analysis by technical personnel.

[0127] Furthermore, to achieve the above objectives, this utility model also proposes a battery, which includes the power regulation circuit described above. Other embodiments or specific implementations of the battery of this utility model can be referred to the embodiments of the power regulation circuit described above, and will not be repeated here.

[0128] The above description is merely an exemplary embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A power regulation circuit, characterized in that, The power regulation circuit is connected to the power module inside the battery, and the power regulation circuit includes: The module includes a detection module, a comparison module, and a control module. The control module is connected to the power module, the detection module, and the comparison module respectively; the detection module is connected to the power module and the comparison module respectively. The detection module is used to acquire the charged power signal of the power module when it detects that the current indoor temperature has not reached the preset temperature threshold, and transmit the charged power signal to the comparison module. The comparison module is used to compare the charged power signal of the power module at the current indoor temperature with a preset power signal to obtain a power difference signal, and transmit the power difference signal to the control module. The control module is used to adjust the current charged power of the power supply module to a preset power according to the power difference signal.

2. The power regulation circuit as described in claim 1, characterized in that, The detection module includes: Temperature detection subunit and power detection subunit; The temperature detection subunit is connected to the power detection subunit, the power supply module, and the control module, respectively; the power detection subunit is connected to the comparison module and the power supply module, respectively. The temperature detection subunit is used to detect whether the current indoor temperature has reached the preset temperature threshold. If not, it transmits an execution signal to the power detection subunit. The power detection subunit is used to acquire the charged power signal of the power module according to the execution signal, and transmit the charged power signal to the comparison module.

3. The power regulation circuit as described in claim 2, characterized in that, The temperature detection subunit includes: Temperature sensor, first resistor, and second resistor; The first end of the first resistor is connected to the power module, and the second end of the first resistor is connected to the first end of the temperature sensor and the first end of the second resistor, respectively. The first end of the temperature sensor is connected to the first end of the second resistor, and the second end of the temperature sensor is connected to the second end of the second resistor and the control module, respectively. The second end of the second resistor is connected to the control module.

4. The power regulation circuit as described in claim 3, characterized in that, The power detection subunit includes: Third resistor; The first end of the third resistor is connected to the power supply module, and the second end of the third resistor is connected to both the control module and the comparison module.

5. The power regulation circuit as described in claim 4, characterized in that, The comparison module includes: Auxiliary sub-units and comparison sub-units; The auxiliary subunit is connected to both the control module and the comparison subunit; the comparison subunit is connected to the control module. The auxiliary subunit is used to amplify the charged power signal and transmit the amplified charged power signal to the comparison subunit; The comparison subunit is used to compare the amplified charged power signal with the preset power signal to obtain the power difference signal, and transmit the power difference signal to the control module.

6. The power regulation circuit as described in claim 5, characterized in that, The auxiliary subunit includes: Amplifier, fourth resistor, and fifth resistor; The positive terminal of the amplifier is connected to the control module and the second terminal of the third resistor, the negative terminal of the amplifier is connected to the second terminal of the fourth resistor and the first terminal of the fifth resistor, and the output terminal of the amplifier is connected to the first terminal of the fourth resistor and the comparator subunit. The first end of the fourth resistor is connected to the comparator subunit, and the second end of the fourth resistor is connected to the first end of the fifth resistor; The second terminal of the fifth resistor is grounded.

7. The power regulation circuit as described in claim 6, characterized in that, The comparison subunit includes: Comparator, sixth resistor, seventh resistor, eighth resistor, ninth resistor, and reference power supply; The positive terminal of the comparator is connected to the second terminal of the sixth resistor and the first terminal of the seventh resistor, respectively; the negative terminal of the comparator is connected to the second terminal of the eighth resistor and the first terminal of the ninth resistor, respectively; and the output terminal of the comparator is connected to the second terminal of the sixth resistor and the control module, respectively. The first end of the sixth resistor is connected to the output terminal of the amplifier and the first end of the fourth resistor, respectively; the second end of the sixth resistor is connected to the first end of the seventh resistor. The second segment of the seventh resistor is grounded; the first end of the eighth resistor is connected to the reference power supply.

8. The power regulation circuit as described in claim 1, characterized in that, The control module includes: microcontroller; The ADC pin of the microcontroller is connected to the detection module and the comparison module respectively, the input pin of the microcontroller is connected to the comparison module, and the power adjustment pin of the microcontroller is connected to the power supply module.

9. The power regulation circuit as described in claim 1, characterized in that, The power regulation circuit further includes: Storage module; The storage module is connected to the control module; The storage module is used to store the historical adjustment data of the control module.

10. A battery, characterized in that, The battery includes the power regulation circuit according to any one of claims 1 to 9.

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