AI intelligent charging protector circuit

Abstract

The invention discloses an AI intelligent charging protector circuit, and relates to the field of safety protection, the AI intelligent charging protector circuit comprises a voltage processing module used for converting introduced 220V alternating current into direct current and outputting the direct current to a voltage output module; the voltage output module is used for outputting the direct current to the battery as a charging voltage; the detection protection module is used for detecting the charging voltage, grounding and discharging when the charging voltage exceeds a threshold value, and feeding back a control signal to the voltage output module to disconnect a charging loop of the battery; and the output end of the voltage processing module is connected with the first input end of the voltage output module. Compared with the prior art, the beneficial effects are that through the detection protection module, when the power supply voltage of the battery is detected to exceed a threshold value, grounding discharge is carried out, and meanwhile, a control signal is fed back to the voltage output module; therefore, the battery is prevented from being continuously charged by small current, and the service condition of the battery is not influenced.

Description

Technical Field

[0001] The present invention relates to the field of safety protection, and in particular to an AI intelligent charging protector circuit. Background Art

[0002] During the charging process, if the battery voltage exceeds its set threshold, overcharging will cause the internal pressure and temperature of the battery to increase, and even cause safety problems such as battery expansion, leakage, spontaneous combustion or explosion. The protection circuit can automatically cut off the charging current when it detects that the battery voltage reaches the upper limit, thereby avoiding overcharging.

[0003] Existing protection circuits often ground the charging voltage when the battery voltage exceeds a set threshold to avoid continued charging and damage to the battery. The disadvantage is that after the grounding protection, a small current is still input to the battery, and the current output to the battery is less than the normal battery charging current, resulting in abnormal battery charging, which needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide an AI intelligent charging protector circuit to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An AI intelligent charging protector circuit, comprising:

[0007] The voltage processing module is used to convert the incoming 220V AC power into DC power and output it to the voltage output module;

[0008] A voltage output module, used for outputting direct current to the battery as a charging voltage;

[0009] The detection protection module is used to detect the charging voltage. When the charging voltage exceeds the threshold, the current is discharged to the ground, and a control signal is fed back to the voltage output module to disconnect the charging circuit of the battery.

[0010] The output end of the voltage processing module is connected to the first input end of the voltage output module, the output end of the voltage output module is connected to the input end of the detection and protection module, and the output end of the detection and protection module is connected to the second input end of the voltage output module.

[0011] As a further solution of the present invention: the voltage processing module includes:

[0012] The lightning surge protection submodule is used to effectively suppress or discharge the surge voltage, thereby protecting the safety of subsequent circuits and devices;

[0013] The step-down rectifier and filter submodule is used to convert the AC power into stable DC power after stepping down, rectifying and filtering, and output it to the voltage output module;

[0014] The output end of the lightning surge protection submodule is connected to the input end of the buck rectification and filtering submodule, and the output end of the buck rectification and filtering submodule is connected to the first input end of the voltage output module.

[0015] As a further solution of the present invention: the lightning surge protection submodule includes a live wire, a neutral wire, a varistor, a choke, and a first capacitor. The live wire is connected to one end of the varistor and one end of the input end of the choke, the neutral wire is connected to the other end of the varistor and the other end of the input end of the choke, one end of the output end of the choke is connected to one end of the first capacitor and the input end of the step-down rectifier and filter submodule, and the other end of the output end of the choke is connected to the other end of the first capacitor and the input end of the step-down rectifier and filter submodule.

[0016] As a further solution of the present invention: the step-down rectifier and filter submodule includes a transformer, a rectifier, a second inductor, a second capacitor, and a second resistor. The input end of the transformer is connected to the output end of the lightning surge protection submodule, one end of the output end of the transformer is connected to the first end of the rectifier, the other end of the output end of the transformer is connected to the third end of the rectifier, the second end of the rectifier is grounded, the fourth end of the rectifier is connected to one end of the second capacitor and one end of the second inductor, the other end of the second capacitor is grounded, the other end of the second inductor is connected to one end of the second resistor and the first input end of the voltage output module, and the other end of the second resistor is grounded.

[0017] As a further solution of the present invention: the voltage output module includes:

[0018] The startup limit submodule is used to increase the circuit impedance when the voltage is input, and restore the circuit impedance after a delay to avoid the detection and protection module from misjudging due to the high voltage at the moment of power-on;

[0019] The conduction control submodule is used to provide a charging voltage for the battery; disconnect the battery charging circuit after receiving a driving signal from the detection protection module; disconnect the battery charging circuit after receiving a manual control signal;

[0020] The input end of the startup restriction submodule is connected to the output end of the voltage processing module, the output end of the startup restriction submodule is connected to the first input end of the conduction control submodule, the output end of the conduction control submodule is connected to the input end of the detection protection module, and the second input end of the conduction control submodule is connected to the output end of the detection protection module.

[0021] As a further solution of the present invention: the startup limiting submodule includes a third resistor, a fourth resistor, a first MOS tube, a first diode, a fifth resistor, a first potentiometer, and a third capacitor. One end of the third resistor is connected to the D pole of the first MOS tube and the output end of the voltage processing module, the other end of the third resistor is connected to the S pole of the first MOS tube and one end of the fourth resistor, the other end of the fourth resistor is connected to one end of the first potentiometer and the first input end of the conduction control submodule, the other end of the first potentiometer is connected to one end of the fifth resistor and one end of the third capacitor, the other end of the third capacitor is grounded, the other end of the fifth resistor is connected to the cathode of the first diode, and the anode of the first diode is connected to the G pole of the first MOS tube.

[0022] As a further solution of the present invention: the conduction control submodule includes a second diode, a second MOS tube, a sixth resistor, and a first switch, the positive electrode of the second diode is connected to the D pole of the second MOS tube and the output end of the start-limit submodule, the negative electrode of the second diode is connected to the input end of the detection protection module, the S pole of the second MOS tube is connected to the battery, the G pole of the second MOS tube is connected to one end of the sixth resistor and the output end of the detection protection module, the other end of the sixth resistor is connected to one end of the first switch, and the other end of the first switch is grounded.

[0023] As a further solution of the present invention: the detection and protection module includes:

[0024] The voltage detection grounding submodule is used to detect that the charging voltage exceeds the threshold value, to discharge the current to the ground, and to provide a driving signal for the isolation signal driving submodule;

[0025] The isolation signal driving submodule is used to provide a control signal to the voltage output module after receiving the driving signal, thereby disconnecting the charging circuit of the battery;

[0026] The input end of the voltage detection grounding submodule is connected to the first input end of the isolation signal driving submodule and the output end of the voltage output module, the output end of the voltage detection grounding submodule is connected to the second input end of the isolation signal driving submodule, and the output end of the isolation signal driving submodule is connected to the second input end of the voltage output module.

[0027] As a further solution of the present invention: the voltage detection grounding submodule includes an optocoupler, a ninth resistor, a tenth resistor, a third diode, and an eighth resistor. One end of the eighth resistor is connected to one end of the ninth resistor and the output end of the voltage output module, the other end of the ninth resistor is connected to one end of the input end of the optocoupler and one end of the tenth resistor, the other end of the tenth resistor is connected to the other end of the input end of the optocoupler and the negative electrode of the third diode, the positive electrode of the third diode is grounded, one end of the output end of the optocoupler is connected to the other end of the eighth resistor, and the other end of the output end of the optocoupler is connected to the second input end of the isolation signal driving submodule.

[0028] As a further solution of the present invention: the isolation signal driving submodule includes a seventh resistor, an eleventh resistor, and a third MOS tube, one end of the seventh resistor is connected to the output end of the voltage output module, the other end of the seventh resistor is connected to the D pole of the third MOS tube and the second input end of the voltage output module, the S pole of the third MOS tube is grounded, the G pole of the third MOS tube is connected to one end of the eleventh resistor and the output end of the voltage detection grounding submodule, and the other end of the eleventh resistor is grounded.

[0029] Compared with the prior art, the beneficial effect of the present invention is that when the protection module detects that the power supply voltage of the battery exceeds the threshold, the present invention will disconnect the charging circuit of the battery by feeding back a control signal to the voltage output module while performing grounding current discharge, thereby preventing a small current from continuing to charge the battery and affecting the battery usage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The circuit diagram of an AI intelligent charging protector circuit. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 , an AI intelligent charging protector circuit, comprising:

[0033] The voltage processing module is used to convert the incoming 220V AC power into DC power and output it to the voltage output module;

[0034] A voltage output module, used for outputting direct current to the battery as a charging voltage;

[0035] The detection protection module is used to detect the charging voltage. When the charging voltage exceeds the threshold, the current is discharged to the ground, and a control signal is fed back to the voltage output module to disconnect the charging circuit of the battery.

[0036] The output end of the voltage processing module is connected to the first input end of the voltage output module, the output end of the voltage output module is connected to the input end of the detection and protection module, and the output end of the detection and protection module is connected to the second input end of the voltage output module.

[0037] In this example: See Figure 1 , the voltage processing module includes:

[0038] The lightning surge protection submodule is used to effectively suppress or discharge the surge voltage, thereby protecting the safety of subsequent circuits and devices;

[0039] The step-down rectifier and filter submodule is used to convert the AC power into stable DC power after stepping down, rectifying and filtering, and output it to the voltage output module;

[0040] The output end of the lightning surge protection submodule is connected to the input end of the buck rectification and filtering submodule, and the output end of the buck rectification and filtering submodule is connected to the first input end of the voltage output module.

[0041] In this example: See Figure 1 The lightning surge protection submodule includes a live wire L, a neutral wire N, a varistor R1, a choke L1, and a first capacitor C1. The live wire L is connected to one end of the varistor R1 and one end of the input end of the choke L1. The neutral wire N is connected to the other end of the varistor R1 and the other end of the input end of the choke L1. One end of the output end of the choke L1 is connected to one end of the first capacitor C1 and the input end of the step-down rectifier and filter submodule. The other end of the output end of the choke L1 is connected to the other end of the first capacitor C1 and the input end of the step-down rectifier and filter submodule.

[0042] The live wire L and the neutral wire N supply 220V AC power, the varistor R1 provides lightning pulse protection, the common mode choke L1 and the first capacitor C1 provide EMC common mode filtering to achieve lightning surge protection, and the AC power is output to the step-down rectifier and filter submodule through the lightning surge protection submodule.

[0043] In another embodiment, an additional fuse may be provided to disconnect the protection circuit when the circuit current is too large.

[0044] In this example: See Figure 1 The step-down rectifier and filter submodule includes a transformer W, a rectifier T, a second inductor L2, a second capacitor C2, and a second resistor R2. The input end of the transformer W is connected to the output end of the lightning surge protection submodule, one end of the output end of the transformer W is connected to the first end of the rectifier T, the other end of the output end of the transformer W is connected to the third end of the rectifier T, the second end of the rectifier T is grounded, the fourth end of the rectifier T is connected to one end of the second capacitor C2 and one end of the second inductor L2, the other end of the second capacitor C2 is grounded, the other end of the second inductor L2 is connected to one end of the second resistor R2 and the first input end of the voltage output module, and the other end of the second resistor R2 is grounded.

[0045] The AC power input is stepped down by the transformer W, converted to AC / DC by the rectifier T, and filtered by the second capacitor C2, the second inductor L2, and the second resistor R2 to obtain a stable DC power supply voltage output module.

[0046] In another embodiment: a transformer W is provided here to complete voltage reduction and supply power to a battery with a low voltage requirement. If supply power to a battery with a high voltage requirement, the transformer W may not be provided.

[0047] In this example: See Figure 1 , the voltage output module includes:

[0048] The startup limit submodule is used to increase the circuit impedance when the voltage is input, and restore the circuit impedance after a delay to avoid the detection and protection module from misjudging due to the high voltage at the moment of power-on;

[0049] The conduction control submodule is used to provide a charging voltage for the battery; disconnect the battery charging circuit after receiving a driving signal from the detection protection module; disconnect the battery charging circuit after receiving a manual control signal;

[0050] The input end of the startup restriction submodule is connected to the output end of the voltage processing module, the output end of the startup restriction submodule is connected to the first input end of the conduction control submodule, the output end of the conduction control submodule is connected to the input end of the detection protection module, and the second input end of the conduction control submodule is connected to the output end of the detection protection module.

[0051] In this example: See Figure 1 The startup limiting submodule includes a third resistor R3, a fourth resistor R4, a first MOS tube V1, a first diode D1, a fifth resistor R5, a first potentiometer RP1, and a third capacitor C3. One end of the third resistor R3 is connected to the D pole of the first MOS tube V1 and the output end of the voltage processing module, the other end of the third resistor R3 is connected to the S pole of the first MOS tube V1 and one end of the fourth resistor R4, the other end of the fourth resistor R4 is connected to one end of the first potentiometer RP1 and the first input end of the conduction control submodule, the other end of the first potentiometer RP1 is connected to one end of the fifth resistor R5 and one end of the third capacitor C3, the other end of the third capacitor C3 is grounded, the other end of the fifth resistor R5 is connected to the cathode of the first diode D1, and the anode of the first diode D1 is connected to the G pole of the first MOS tube V1.

[0052] After the voltage is input, the first MOS tube V1 is cut off at the beginning. At this time, the circuit impedance is relatively large. The current charges the third capacitor C3 through the third resistor R3, the fourth resistor R4, and the first potentiometer RP1. As the charging proceeds, the voltage on the third capacitor C3 is sufficient to turn on the first diode D1 through the fifth resistor R5, so that the G pole of the first MOS tube V1 is at a high level, and the first MOS tube V1 is turned on. At this time, the circuit impedance is reduced. Through the charging delay process of the third capacitor C3, the circuit impedance is increased when the voltage is input, and the circuit impedance is restored after the delay, so as to avoid the large voltage at the moment of power-on causing the detection protection module to misjudge.

[0053] In another embodiment, the first potentiometer RP1 may be replaced with a common resistor, which will make it impossible to adjust the charging time of the third capacitor C3.

[0054] In this example: See Figure 1 The conduction control submodule includes a second diode D2, a second MOS tube V2, a sixth resistor R6, and a first switch S1. The anode of the second diode D2 is connected to the D pole of the second MOS tube V2 and the output end of the start-up limit submodule, the cathode of the second diode D2 is connected to the input end of the detection protection module, the S pole of the second MOS tube V2 is connected to the battery, the G pole of the second MOS tube V2 is connected to one end of the sixth resistor R6 and the output end of the detection protection module, the other end of the sixth resistor R6 is connected to one end of the first switch S1, and the other end of the first switch S1 is grounded.

[0055] After the voltage is input, the G pole of the second MOS tube V2 becomes a high level through the detection and protection module to power the battery; when the detection and protection module detects that the power supply voltage is abnormal, the detection and protection module outputs a low level to the G pole of the second MOS tube V2, and the second MOS tube V2 is cut off, disconnecting the power supply circuit of the battery.

[0056] In another embodiment: the first switch S1 can be omitted, and the first switch S1 is used as a manual switch to control the charging for the user. When charging is suspended, it can be achieved by controlling the first switch S1 instead of directly unplugging the power supply (live wire L, neutral wire N), so as to avoid large current at the moment of circuit opening and closing.

[0057] In this example: See Figure 1 , the detection and protection module includes:

[0058] The voltage detection grounding submodule is used to detect that the charging voltage exceeds the threshold value, to discharge the current to the ground, and to provide a driving signal for the isolation signal driving submodule;

[0059] The isolation signal driving submodule is used to provide a control signal to the voltage output module after receiving the driving signal, thereby disconnecting the charging circuit of the battery;

[0060] The input end of the voltage detection grounding submodule is connected to the first input end of the isolation signal driving submodule and the output end of the voltage output module, the output end of the voltage detection grounding submodule is connected to the second input end of the isolation signal driving submodule, and the output end of the isolation signal driving submodule is connected to the second input end of the voltage output module.

[0061] In this example: See Figure 1The voltage detection grounding submodule includes an optocoupler U1, a ninth resistor R9, a tenth resistor R10, a third diode D3, and an eighth resistor R8. One end of the eighth resistor R8 is connected to one end of the ninth resistor R9 and the output end of the voltage output module. The other end of the ninth resistor R9 is connected to one end of the input end of the optocoupler U1 and one end of the tenth resistor R10. The other end of the tenth resistor R10 is connected to the other end of the input end of the optocoupler U1 and the cathode of the third diode D3. The anode of the third diode D3 is grounded. One end of the output end of the optocoupler U1 is connected to the other end of the eighth resistor R8. The other end of the output end of the optocoupler U1 is connected to the second input end of the isolation signal driving submodule.

[0062] When the battery supply voltage exceeds the threshold, the third diode D3 is turned on as a voltage stabilizing diode, so that the light-emitting diode inside the optocoupler U1 is turned on, and the phototransistor is turned on, providing a high-level signal for the isolation signal driving submodule. Conversely, when the battery supply voltage does not exceed the threshold, the third diode D3 is not turned on, the light-emitting diode and phototransistor inside the optocoupler U1 are turned off, and a low-level signal is provided for the isolation signal driving submodule.

[0063] In another embodiment: the optical coupler U1 may not be provided, so that the transmission control signal cannot be isolated.

[0064] In this example: See Figure 1 The isolation signal driving submodule includes a seventh resistor R7, an eleventh resistor R11, and a third MOS tube V3. One end of the seventh resistor R7 is connected to the output end of the voltage output module, the other end of the seventh resistor R7 is connected to the D pole of the third MOS tube V3 and the second input end of the voltage output module, the S pole of the third MOS tube V3 is grounded, the G pole of the third MOS tube V3 is connected to one end of the eleventh resistor R11 and the output end of the voltage detection grounding submodule, and the other end of the eleventh resistor R11 is grounded.

[0065] When the optocoupler U1 outputs a low level, the third MOS tube V3 is turned off, and the D pole of the third MOS tube V3 is at a high level, maintaining the second MOS tube V2 on; when the optocoupler U1 outputs a high level, the third MOS tube V3 is turned on and grounded, and the D pole of the third MOS tube V3 is at a low level, so that the second MOS tube V2 is turned off and stops supplying power to the battery.

[0066] In another embodiment, a battery may be used to supply power to maintain the operation of the isolation signal driving submodule.

[0067] The working principle of the present invention is: the voltage processing module is used to convert the introduced 220V AC power into DC power and output it to the voltage output module; the voltage output module is used to output DC power to the battery as a charging voltage; the detection and protection module is used to detect the charging voltage, and when the charging voltage exceeds the threshold, the grounding is used to discharge the current, and a control signal is fed back to the voltage output module to disconnect the charging circuit of the battery.

[0068] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An AI intelligent charging protector circuit, characterized in that: The AI ​​intelligent charging protector circuit includes: The voltage processing module is used to convert the incoming 220V AC power into DC power and output it to the voltage output module; A voltage output module, used for outputting direct current to the battery as a charging voltage; The detection protection module is used to detect the charging voltage. When the charging voltage exceeds the threshold, the current is discharged to the ground, and a control signal is fed back to the voltage output module to disconnect the charging circuit of the battery. The output end of the voltage processing module is connected to the first input end of the voltage output module, the output end of the voltage output module is connected to the input end of the detection and protection module, and the output end of the detection and protection module is connected to the second input end of the voltage output module.

2. The AI ​​intelligent charging protector circuit according to claim 1, characterized in that: The voltage processing module includes: The lightning surge protection submodule is used to effectively suppress or discharge the surge voltage, thereby protecting the safety of subsequent circuits and devices; The step-down rectifier and filter submodule is used to convert the AC power into stable DC power after stepping down, rectifying and filtering, and output it to the voltage output module; The output end of the lightning surge protection submodule is connected to the input end of the buck rectification and filtering submodule, and the output end of the buck rectification and filtering submodule is connected to the first input end of the voltage output module.

3. The AI ​​intelligent charging protector circuit according to claim 2, characterized in that: The lightning surge protection submodule includes a live wire, a neutral wire, a varistor, a choke, and a first capacitor. The live wire is connected to one end of the varistor and one end of the input end of the choke, the neutral wire is connected to the other end of the varistor and the other end of the input end of the choke, one end of the output end of the choke is connected to one end of the first capacitor and the input end of the step-down rectifier and filter submodule, and the other end of the output end of the choke is connected to the other end of the first capacitor and the input end of the step-down rectifier and filter submodule.

4. The AI ​​intelligent charging protector circuit according to claim 2, characterized in that: The step-down rectifier and filter submodule includes a transformer, a rectifier, a second inductor, a second capacitor, and a second resistor. The input end of the transformer is connected to the output end of the lightning surge protection submodule, one end of the output end of the transformer is connected to the first end of the rectifier, the other end of the output end of the transformer is connected to the third end of the rectifier, the second end of the rectifier is grounded, the fourth end of the rectifier is connected to one end of the second capacitor and one end of the second inductor, the other end of the second capacitor is grounded, the other end of the second inductor is connected to one end of the second resistor and the first input end of the voltage output module, and the other end of the second resistor is grounded.

5. The AI ​​intelligent charging protector circuit according to claim 1, characterized in that: The voltage output module includes: The startup limit submodule is used to increase the circuit impedance when the voltage is input, and restore the circuit impedance after a delay to avoid the detection and protection module from misjudging due to the high voltage at the moment of power-on; The conduction control submodule is used to provide a charging voltage for the battery; disconnect the battery charging circuit after receiving a driving signal from the detection protection module; disconnect the battery charging circuit after receiving a manual control signal; The input end of the startup restriction submodule is connected to the output end of the voltage processing module, the output end of the startup restriction submodule is connected to the first input end of the conduction control submodule, the output end of the conduction control submodule is connected to the input end of the detection protection module, and the second input end of the conduction control submodule is connected to the output end of the detection protection module.

6. The AI ​​intelligent charging protector circuit according to claim 5, characterized in that: The startup limiting submodule includes a third resistor, a fourth resistor, a first MOS tube, a first diode, a fifth resistor, a first potentiometer, and a third capacitor. One end of the third resistor is connected to the D pole of the first MOS tube and the output end of the voltage processing module, the other end of the third resistor is connected to the S pole of the first MOS tube and one end of the fourth resistor, the other end of the fourth resistor is connected to one end of the first potentiometer and the first input end of the conduction control submodule, the other end of the first potentiometer is connected to one end of the fifth resistor and one end of the third capacitor, the other end of the third capacitor is grounded, the other end of the fifth resistor is connected to the cathode of the first diode, and the anode of the first diode is connected to the G pole of the first MOS tube.

7. The AI ​​intelligent charging protector circuit according to claim 5, characterized in that: The conduction control submodule includes a second diode, a second MOS tube, a sixth resistor, and a first switch. The anode of the second diode is connected to the D pole of the second MOS tube and the output end of the start-limit submodule, the cathode of the second diode is connected to the input end of the detection protection module, the S pole of the second MOS tube is connected to the battery, the G pole of the second MOS tube is connected to one end of the sixth resistor and the output end of the detection protection module, the other end of the sixth resistor is connected to one end of the first switch, and the other end of the first switch is grounded.

8. The AI ​​intelligent charging protector circuit according to any one of claims 1 to 7, characterized in that: The detection and protection module includes: The voltage detection grounding submodule is used to detect that the charging voltage exceeds the threshold value, to discharge the current to the ground, and to provide a driving signal for the isolation signal driving submodule; The isolation signal driving submodule is used to provide a control signal to the voltage output module after receiving the driving signal, thereby disconnecting the charging circuit of the battery; The input end of the voltage detection grounding submodule is connected to the first input end of the isolation signal driving submodule and the output end of the voltage output module, the output end of the voltage detection grounding submodule is connected to the second input end of the isolation signal driving submodule, and the output end of the isolation signal driving submodule is connected to the second input end of the voltage output module.

9. The AI ​​intelligent charging protector circuit according to claim 8, characterized in that: The voltage detection grounding submodule includes an optocoupler, a ninth resistor, a tenth resistor, a third diode, and an eighth resistor. One end of the eighth resistor is connected to one end of the ninth resistor and the output end of the voltage output module, the other end of the ninth resistor is connected to one end of the input end of the optocoupler and one end of the tenth resistor, the other end of the tenth resistor is connected to the other end of the input end of the optocoupler and the negative electrode of the third diode, the positive electrode of the third diode is grounded, one end of the output end of the optocoupler is connected to the other end of the eighth resistor, and the other end of the output end of the optocoupler is connected to the second input end of the isolation signal driving submodule.

10. The AI ​​intelligent charging protector circuit according to claim 8, characterized in that: The isolation signal driving submodule includes a seventh resistor, an eleventh resistor, and a third MOS tube, one end of the seventh resistor is connected to the output end of the voltage output module, the other end of the seventh resistor is connected to the D pole of the third MOS tube and the second input end of the voltage output module, the S pole of the third MOS tube is grounded, the G pole of the third MOS tube is connected to one end of the eleventh resistor and the output end of the voltage detection grounding submodule, and the other end of the eleventh resistor is grounded.

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