Anti-shake circuit

Abstract

The utility model relates to an anti-shake circuit, which is applied to the field of electronic circuits, and comprises a power supply module used for providing a power supply voltage VBAT +; the voltage conversion module is connected to the power supply module and is used for acquiring power supply voltage VBAT + and outputting working voltage required by each circuit module and a battery pack discharge signal ADC-VOL; the anti-shake circuit module is connected to the voltage conversion module and is used for acquiring the temperature signal T1 and outputting a battery pack communication signal RX; the signal processing module is connected to the voltage conversion module and the anti-shake circuit module and is used for receiving the battery pack discharge signal ADC-VOL and the battery pack communication signal RX and controlling opening and closing of the battery pack according to the battery pack communication signal RX; and if the battery pack communication signal RX is abnormal, the signal processing module stops receiving the battery pack communication signal RX so as to turn off the battery pack. The method has the technical effects that frequent shutdown and restart are avoided, and the use experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic circuits, and in particular to an anti-shake circuit. Background Art

[0002] DC sand tools have an eccentric wheel structure design, and the vibration frequency is high when polishing or grinding, which will cause the signal to be lost at the battery holder and battery pack socket, causing the tool to enter a protection state and cause the tool to shut down frequently.

[0003] Currently, this type of DC sand tool does not have the function of eliminating short-term jitter, which will cause the tool to be frequently restarted, resulting in a poor user experience for customers. Summary of the invention

[0004] In order to help solve the problem of frequent restarting of the tool, the present application provides an anti-shake circuit, which adopts the following technical solutions: including:

[0005] A power supply module, the power supply module is used to provide a power supply voltage VBAT+;

[0006] A voltage conversion module, which is connected to the power supply module and is used to obtain the power supply voltage output by the power supply module and output the operating voltage required by each circuit module and the battery pack discharge signal ADC-VOL;

[0007] An anti-shake circuit module, which is connected to the voltage conversion module and is used to obtain the temperature signal T1 and output a battery pack communication signal RX;

[0008] A signal processing module, the signal processing module is connected to the voltage conversion module and the anti-shake circuit module, and is used to receive the battery pack discharge signal ADC-VOL and the battery pack communication signal RX, and control the opening and closing of the battery pack according to the battery pack communication signal RX;

[0009] The signal processing module determines whether the battery pack communication signal RX is abnormal;

[0010] If the battery pack communication signal RX is abnormal, the signal processing module stops receiving the battery pack communication signal RX to shut down the battery pack.

[0011] Through the above technical solution, the short-term jitter signal appearing in the circuit is filtered out through the design of the anti-shake circuit module, so that the short-term jitter signal will not be processed by the signal processing module, thereby avoiding the impact of the short-term jitter signal on the entire circuit as much as possible, so that the tool will not be frequently shut down and restarted due to signal loss, thereby improving the efficiency of the tool and the customer's usage experience.

[0012] In a specific implementation scheme, the power supply module includes:

[0013] The positive pole of the battery pack socket and the negative pole of the battery pack socket;

[0014] A capacitor C14 and a capacitor C10 connected in parallel, wherein one connection point between the capacitor C14 and the capacitor C10 is connected to the positive electrode of the battery pack socket, and another connection point between the capacitor C14 and the capacitor C10 is connected to the negative electrode of the battery pack socket;

[0015] A polarity capacitor C11, wherein the positive electrode of the polarity capacitor C11 is connected to the positive electrode of the battery pack socket and outputs the power supply voltage VBAT+, and the negative electrode of the polarity capacitor C11 is connected to the negative electrode of the battery pack socket and is grounded.

[0016] In a specific implementation scheme, the voltage conversion module includes:

[0017] A PNP transistor Q2, whose emitter is connected to the power supply voltage VBAT+, whose base is connected to the emitter through a resistor R3, whose collector is grounded through a resistor R12 and a resistor R14 connected in series, and whose collector outputs an operating voltage VB+;

[0018] NPN transistor Q20, whose base is grounded through resistor R50, emitter is grounded, and collector is connected to the base of the PNP transistor Q2 through resistor R7;

[0019] A voltage zener diode ZD2, wherein the cathode of the voltage zener diode ZD2 is connected to the emitter of the PNP transistor Q2, and the anode of the voltage zener diode ZD2 is connected to the base of the NPN transistor Q20 via a resistor R40;

[0020] A capacitor C16, one end of the capacitor C16 is connected to a connection point between the resistor R12 and the resistor R14, and outputs the battery pack discharge signal ADC-VOL, and the other end of the capacitor C16 is grounded;

[0021] A step-down unit is used to receive the working voltage VB+ and output a stepped-down 12V voltage and a 5V voltage.

[0022] In a specific embodiment, the depressurization unit comprises:

[0023] The voltage-stabilized power chip U1 has three pins, wherein the pin 3 of the voltage-stabilized power chip U1 is connected to the collector of the PNP transistor Q2, the pin 2 of the voltage-stabilized power chip U1 is grounded, and the pin 1 of the voltage-stabilized power chip U1 outputs a 12V voltage. The model of the voltage-stabilized power chip U1 is 78L12;

[0024] A polarity capacitor C35, wherein the positive electrode of the polarity capacitor C35 is connected to the 12V voltage of the pin 1 of the voltage-stabilized power supply chip U1, and the negative electrode of the polarity capacitor C35 is grounded;

[0025] The voltage-stabilized power supply chip U2 has three pins. Pin 3 of the voltage-stabilized power supply chip U2 is connected to pin 1 of the voltage-stabilized power supply chip U1. Pin 2 of the voltage-stabilized power supply chip U2 is grounded. Pin 1 of the voltage-stabilized power supply chip U2 outputs a 5V voltage. The model of the voltage-stabilized power supply chip U2 is 78L05.

[0026] In a specific implementation scheme, the voltage conversion module further includes:

[0027] A capacitor C2 and a capacitor C3 connected in parallel, wherein one connection point between the capacitor C2 and the capacitor C3 is connected to the collector of the PNP transistor Q2, and another connection point between the capacitor C2 and the capacitor C3 is grounded;

[0028] A capacitor C6 and a capacitor C7 connected in parallel, wherein one connection point between the capacitor C6 and the capacitor C7 is connected to pin 1 of the voltage-stabilized power supply chip U1, and another connection point between the capacitor C6 and the capacitor C7 is grounded;

[0029] The capacitor C8 and the capacitor C9 are connected in parallel, one connection point between the capacitor C8 and the capacitor C9 is connected to the pin 1 of the voltage-stabilized power supply chip U2, and the other connection point between the capacitor C8 and the capacitor C9 is grounded.

[0030] In a specific implementation scheme, the anti-shake circuit module includes:

[0031] A dual voltage comparator U10, wherein the dual voltage comparator U10 includes an operational amplifier U10B;

[0032] The operational amplifier U10B has two input terminals and one output terminal;

[0033] An inductor SL1, one end of which acquires the temperature signal T1, and the other end of which is connected to the non-inverting input end of the operational amplifier U10B via a resistor R49 and a resistor R46 connected in series;

[0034] A voltage regulator tube D6, wherein a cathode of the voltage regulator tube D6 is connected to a connection point between the inductor SL1 and the resistor R49, and an anode of the voltage regulator tube D6 is grounded;

[0035] A capacitor C33, one end of the capacitor C33 is connected to the cathode of the voltage regulator tube D6, and the other end of the capacitor C33 is connected to the anode of the voltage regulator tube D6;

[0036] A resistor R48, one end of which is connected to a 12V power supply, and the other end of which is connected to a connection point between the resistor R46 and the resistor R49;

[0037] A voltage regulator tube D5, wherein the cathode of the voltage regulator tube D5 is connected to the inverting input terminal of the operational amplifier U10B through a resistor R47, and the anode of the voltage regulator tube D5 is connected to the connection point between the resistor R46 and the resistor R49;

[0038] A capacitor C32 and a resistor R53 connected in parallel, wherein one connection point between the capacitor C32 and the resistor R53 is connected to the cathode of the voltage regulator tube D5, and another connection point between the capacitor C32 and the resistor R53 is grounded;

[0039] The output end of the operational amplifier U10B outputs the battery pack communication signal RX through the resistor R42;

[0040] A resistor R45 and a capacitor C31 connected in series, the other end of the resistor R45 is connected to a 5V power supply, the other end of the capacitor C32 is grounded, and the connection point between the resistor R45 and the capacitor C31 is connected to the output end of the operational amplifier U10B;

[0041] A voltage regulator tube ZD1, wherein the cathode of the voltage regulator tube ZD1 is connected to the output end of the battery pack communication signal RX, and the anode of the voltage regulator tube ZD1 is grounded;

[0042] Capacitor C36, one end of the capacitor C36 is connected to the cathode of the voltage regulator tube ZD1, and the other end of the capacitor C36 is connected to the anode of the voltage regulator tube ZD1.

[0043] In a specific possible implementation scheme, the dual voltage comparator U10 further includes an operational amplifier U10A;

[0044] The operational amplifier U10A has two input terminals, a ground terminal and a power supply terminal, wherein the in-phase input terminal is connected to a 12V power supply through a resistor R51, the inverting input terminal is grounded through a resistor R52, the ground terminal pin 4 is grounded, and the power supply terminal pin 8 is connected to a 12V power supply;

[0045] Capacitor C34, one end of the capacitor C34 is connected to the power supply pin 8 of the operational amplifier U10A, and the other end is grounded.

[0046] In a specific implementation scheme, the voltage dual comparator U10 is of model LM2903.

[0047] In a specific implementation scheme, the signal processing module is a control chip U9;

[0048] Pin 1 of the control chip U9 receives the battery pack communication signal RX, and pin 28 of the control chip U9 receives the battery pack discharge signal ADC-VOL;

[0049] Capacitor C25, one end of the capacitor C25 is connected to the 5V power supply of pin 24 of the control chip U9, and the other end of the capacitor C25 is connected to the ground of pin 21 of the control chip U9.

[0050] In a specific implementation scheme, the model of the control chip U9 is T7C-TSSOP28.

[0051] In summary, this application has the following beneficial technical effects:

[0052] Through the design of the anti-shake circuit module, short-term jitter signals appearing in the circuit are filtered out, so that the short-term jitter signals will not be processed by the signal processing module, thereby avoiding the impact of short-term jitter signals on the entire circuit as much as possible, so that the tool will not be frequently shut down and restarted due to signal loss, thereby improving the efficiency of the tool and the customer's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a schematic diagram of the anti-shake circuit framework in an embodiment of the present application;

[0054] Figure 2 is a circuit diagram of a power supply module in an embodiment of the present application;

[0055] Figure 3 is a circuit diagram of a voltage conversion module in an embodiment of the present application;

[0056] Figure 4 is a circuit diagram of an anti-shake circuit module in an embodiment of the present application;

[0057] Figure 5 It is a circuit diagram of the signal processing module in the embodiment of the present application.

[0058] Reference numerals: 100, power supply module; 200, voltage conversion module; 300, anti-shake circuit module; 400, signal processing module. DETAILED DESCRIPTION

[0059] The following is combined with Figure 1-5 This application is described in further detail.

[0060] The embodiment of the present application discloses an anti-shake circuit, which can filter out the short-term pulse changes of the battery pack, thereby avoiding as much as possible the control chip from continuously receiving abnormal pulse waves, which causes the device to enter a protection state and shut down frequently. Since DC sand tools are designed with an eccentric wheel structure, they have a high vibration frequency during polishing or grinding, which will cause the battery holder and the battery pack socket to lose the signal, causing the tool to enter a protection state and cause the tool to shut down frequently. Since this type of tool equipment does not have the function of eliminating short-term jitter, the equipment will restart frequently, resulting in a poor customer experience. In order to help solve the problem of frequent shutdowns and restarts due to the high vibration frequency of the tool, the present application provides an anti-shake circuit.

[0061] Reference Figure 1 , the anti-shake circuit includes:

[0062] A power supply module 100, the power supply module 100 is used to provide a power supply voltage VBAT+; a voltage conversion module 200, the voltage conversion module 200 is connected to the power supply module 100, and is used to obtain the power supply voltage output by the power supply module, and output the working voltage required by each circuit module and the battery pack discharge signal ADC-VOL; an anti-shake circuit module 300, the anti-shake circuit module 300 is connected to the voltage conversion module 200, and is used to obtain the temperature signal T1, and output the battery pack communication signal RX; a signal processing module 400, the signal processing module 400 is connected to the voltage conversion module 200 and the anti-shake circuit module 300, and is used to receive the battery pack discharge signal ADC-VOL and the battery pack communication signal RX, and control the opening and closing of the battery pack according to the battery pack communication signal RX; the signal processing module 400 determines whether the battery pack communication signal RX is abnormal; if the battery pack communication signal RX is abnormal, the signal processing module 400 stops receiving the battery pack communication signal RX to shut down the battery pack.

[0063] Reference Figure 2 The power supply module 100 includes: a positive electrode of a battery pack socket and a negative electrode of a battery pack socket; a capacitor C14 and a capacitor C10 connected in parallel, wherein one connection point between the capacitor C14 and the capacitor C10 is connected to the positive electrode of the battery pack socket, and another connection point between the capacitor C14 and the capacitor C10 is connected to the negative electrode of the battery pack socket; a polarity capacitor C11, wherein the positive electrode of the polarity capacitor C11 is connected to the positive electrode of the battery pack socket and outputs a power supply voltage VBAT+, and the negative electrode of the polarity capacitor C11 is connected to the negative electrode of the battery pack socket and is grounded.

[0064] Reference Figure 3The voltage conversion module 200 includes: a PNP transistor Q2, whose emitter is connected to the power supply voltage VBAT+, whose base is connected to the emitter through a resistor R3, whose collector is grounded through a resistor R12 and a resistor R14 connected in series, and whose collector outputs an operating voltage VB+; an NPN transistor Q20, whose base is grounded through a resistor R50, whose emitter is grounded, and whose collector is connected to the base of the PNP transistor Q2 through a resistor R7; a Zener diode ZD2, whose cathode is connected to the emitter of the PNP transistor Q2, and whose anode is connected to the base of the NPN transistor Q20 through a resistor R40; a capacitor C16, whose one end is connected to the connection point between the resistor R12 and the resistor R14, and outputs a battery pack discharge signal ADC-VOL, and whose other end is grounded; a step-down unit, which is used to receive the operating voltage VB+ and output a stepped-down 12V voltage and a 5V voltage.

[0065] Reference Figure 3 The voltage conversion module 200 includes a step-down unit, which includes a voltage-stabilizing power supply chip U1 having three pins, wherein pin 3 of the voltage-stabilizing power supply chip U1 is connected to the collector of the PNP transistor Q2, pin 2 of the voltage-stabilizing power supply chip U1 is grounded, and pin 1 of the voltage-stabilizing power supply chip U1 outputs a 12V voltage, and the model of the voltage-stabilizing power supply chip U1 is 78L12; a polarity capacitor C35, wherein the positive electrode of the polarity capacitor C35 is connected to the 12V voltage of pin 1 of the voltage-stabilizing power supply chip U1, and the negative electrode of the polarity capacitor C35 is grounded; a voltage-stabilizing power supply chip U2 having three pins, wherein pin 3 of the voltage-stabilizing power supply chip U2 is connected to pin 1 of the voltage-stabilizing power supply chip U1, and pin 2 of the voltage-stabilizing power supply chip U2 is grounded, Pin 1 of the voltage-stabilized power supply chip U2 outputs a 5V voltage, and the model of the voltage-stabilized power supply chip U2 is 78L05; capacitors C2 and C3 are connected in parallel, and one connection point between capacitors C2 and C3 is connected to the collector of the PNP transistor Q2, and another connection point between capacitors C2 and C3 is grounded; capacitors C6 and C7 are connected in parallel, and one connection point between capacitors C6 and C7 is connected to pin 1 of the voltage-stabilized power supply chip U1, and another connection point between capacitors C6 and C7 is grounded; capacitors C8 and C9 are connected in parallel, and one connection point between capacitors C8 and C9 is connected to pin 1 of the voltage-stabilized power supply chip U2, and another connection point between capacitors C8 and C9 is grounded.

[0066] Reference Figure 4The anti-shake circuit module 300 includes: a dual voltage comparator U10, whose model is LM2903, and the dual voltage comparator U10 includes an operational amplifier U10A and an operational amplifier U10B; the operational amplifier U10A has two input terminals, a ground terminal and a power supply terminal, wherein the non-inverting input terminal is connected to the 12V power supply through a resistor R51, the inverting input terminal is grounded through a resistor R52, the ground terminal pin 4 is grounded, and the power supply terminal pin 8 is connected to the 12V power supply; a capacitor C34, one end of the capacitor C34 is connected to the power supply terminal pin 8 of the operational amplifier U10A, and the other end is grounded; wherein, the polarity capacitor C35 stabilizes the 12V voltage output by the voltage stabilizing chip U1, and the operating voltage of the dual voltage comparator U10 is 12V, so the polarity capacitor C35 can play a role in voltage stabilization in the anti-shake circuit module.

[0067] The operational amplifier U10B has two input terminals and one output terminal; an inductor SL1, one end of the inductor SL1 obtains the temperature signal T1, and the other end of the inductor SL1 is connected to the in-phase input terminal of the operational amplifier U10B through a resistor R49 and a resistor R46 connected in series; a voltage regulator tube D6, the cathode of the voltage regulator tube D6 is connected to the connection point of the inductor SL1 and the resistor R49, and the anode of the voltage regulator tube D6 is grounded; a capacitor C33, one end of the capacitor C33 is connected to the cathode of the voltage regulator tube D6, and the other end of the capacitor C33 is connected to the anode of the voltage regulator tube D6; a resistor R48, one end of the resistor R48 is connected to a 12V power supply, and the other end of the resistor R48 is connected to the connection point of the resistor R46 and the resistor R49; a voltage regulator tube D5, the cathode of the voltage regulator tube D5 is connected to the inverting input terminal of the operational amplifier U10B through a resistor R47, and the anode of the voltage regulator tube D5 is connected to the capacitor C3 ... the 12V power supply, and the other end of the resistor R48 is connected to the connection point of the resistor R46 and the resistor R49; a voltage regulator tube D5 The connection point of resistor R46 and resistor R49; capacitor C32 and resistor R53 connected in parallel, one connection point of capacitor C32 and resistor R53 is connected to the cathode of Zener diode D5, and the other connection point of capacitor C32 and resistor R53 is grounded; the output end of op amp U10B outputs the battery pack communication signal RX through resistor R42; resistor R45 and capacitor C31 connected in series, the other end of resistor R45 is connected to a 5V power supply, the other end of capacitor C32 is grounded, and the connection point of resistor R45 and capacitor C31 is connected to the output end of op amp U10B; Zener diode ZD1, the cathode of Zener diode ZD1 is connected to the output end of the battery pack communication signal RX, and the anode of Zener diode ZD1 is grounded; capacitor C36, one end of capacitor C36 is connected to the cathode of Zener diode ZD1, and the other end of capacitor C36 is connected to the anode of Zener diode ZD1.

[0068] Reference Figure 5The signal processing module is the control chip U9, whose model is T7C-TSSOP28; pin 1 of the control chip U9 receives the battery pack communication signal RX, and pin 28 of the control chip U9 receives the battery pack discharge signal ADC-VOL; capacitor C25, one end of the capacitor C25 is connected to the 5V power supply of pin 24 of the control chip U9, and the other end of the capacitor C25 is connected to the ground of pin 21 of the control chip U9.

[0069] The implementation principle of the embodiment of the present application is:

[0070] Connect the battery pack through the battery pack socket interface to obtain the power supply voltage VBAT+. After filtering, the power supply voltage is converted to 12V and 5V working voltage through the voltage conversion module to ensure that the chip and other devices can work normally. In the voltage conversion module, the PNP transistor Q2 and the NPN transistor Q20 form a switch, and the two transistors form a dual-channel signal switch to ensure that the power supply can work normally and is not shut down; the voltage regulator ZD2 has an anti-discharge protection function, and the voltage conversion module outputs the battery pack discharge signal ADC-VOL. The control chip receives the battery pack discharge signal ADC-VOL and determines the value of the voltage difference of the battery pack after the anti-discharge protection, and determines whether the battery has entered the anti-discharge protection state.

[0071] The anti-shake circuit module receives the temperature signal T1 of the battery pack. Different temperature values ​​correspond to different voltage values. After comparing the voltage value corresponding to the acquired temperature signal with the threshold voltage through the operational amplifier U10B, the pulse wave signal of the battery pack is output to the control chip U9. The pulse wave signal is also the battery pack communication signal RX. The tool shakes and the high vibration frequency will cause individual voltage values ​​to be abnormal. If the individual voltage values ​​are abnormal and transmitted to the control chip, the control chip will mistakenly think that the tool is abnormal and cannot work normally, and thus enter the protection state, which will cause the tool to frequently shut down and restart. Therefore, when the received individual voltage value is abnormal after comparison with the threshold voltage, the anti-shake circuit will shape the individual voltage value so that the output voltage waveform is a normal voltage waveform, that is, the individual abnormal voltage value is corrected so that the output battery pack communication signal RX is a normal signal, which is then transmitted to the control chip. The control chip determines that it is a normal signal and will continue to receive the communication signal transmitted by the battery pack to ensure that the tool can operate normally. If multiple consecutive voltage values ​​are received and are all abnormal voltage values, the anti-shake circuit will not shape the voltage waveform and output an abnormal battery pack communication signal RX. The control chip receives the battery pack communication signal RX, determines that the communication signal is an abnormal signal, and stops receiving the battery pack communication signal RX output by the battery pack to shut down the battery pack and shut down the tool.

[0072] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An anti-shake circuit, characterized in that: include: A power supply module, the power supply module is used to provide a power supply voltage VBAT+; A voltage conversion module, the voltage conversion module is connected to the power supply module, and is used to obtain the power supply voltage VBAT+ output by the power supply module, and output the working voltage required by each circuit module and the battery pack discharge signal ADC-VOL; An anti-shake circuit module, which is connected to the voltage conversion module and is used to obtain the temperature signal T1 and output a battery pack communication signal RX; A signal processing module, the signal processing module is connected to the voltage conversion module and the anti-shake circuit module, and is used to receive the battery pack discharge signal ADC-VOL and the battery pack communication signal RX, and control the opening and closing of the battery pack according to the battery pack communication signal RX; The signal processing module determines whether the battery pack communication signal RX is abnormal; If the battery pack communication signal RX is abnormal, the signal processing module stops receiving the battery pack communication signal RX to shut down the battery pack.

2. The anti-shake circuit according to claim 1, characterized in that: The power supply module comprises: The positive pole of the battery pack socket and the negative pole of the battery pack socket; A capacitor C14 and a capacitor C10 connected in parallel, wherein one connection point between the capacitor C14 and the capacitor C10 is connected to the positive electrode of the battery pack socket, and another connection point between the capacitor C14 and the capacitor C10 is connected to the negative electrode of the battery pack socket; A polarity capacitor C11, wherein the positive electrode of the polarity capacitor C11 is connected to the positive electrode of the battery pack socket and outputs the power supply voltage VBAT+, and the negative electrode of the polarity capacitor C11 is connected to the negative electrode of the battery pack socket and is grounded.

3. The anti-shake circuit according to claim 1, characterized in that: The voltage conversion module comprises: A PNP transistor Q2, whose emitter is connected to the power supply voltage VBAT+, whose base is connected to the emitter through a resistor R3, whose collector is grounded through a resistor R12 and a resistor R14 connected in series, and whose collector outputs an operating voltage VB+; An NPN transistor Q20, whose base is grounded through a resistor R50, whose emitter is grounded, and whose collector is connected to the base of the PNP transistor Q2 through a resistor R7; A voltage zener diode ZD2, wherein the cathode of the voltage zener diode ZD2 is connected to the emitter of the PNP transistor Q2, and the anode of the voltage zener diode ZD2 is connected to the base of the NPN transistor Q20 via a resistor R40; A capacitor C16, one end of the capacitor C16 is connected to a connection point between the resistor R12 and the resistor R14, and outputs the battery pack discharge signal ADC-VOL, and the other end of the capacitor C16 is grounded; A step-down unit is used to receive the working voltage VB+ and output a stepped-down 12V voltage and a 5V voltage.

4. The anti-shake circuit according to claim 3, characterized in that: The step-down unit comprises: The voltage-stabilized power chip U1 has three pins, wherein the pin 3 of the voltage-stabilized power chip U1 is connected to the collector of the PNP transistor Q2, the pin 2 of the voltage-stabilized power chip U1 is grounded, and the pin 1 of the voltage-stabilized power chip U1 outputs a 12V voltage. The model of the voltage-stabilized power chip U1 is 78L12; A polarity capacitor C35, wherein the positive electrode of the polarity capacitor C35 is connected to the 12V voltage of the pin 1 of the voltage-stabilized power supply chip U1, and the negative electrode of the polarity capacitor C35 is grounded; The voltage-stabilized power supply chip U2 has three pins. Pin 3 of the voltage-stabilized power supply chip U2 is connected to pin 1 of the voltage-stabilized power supply chip U1. Pin 2 of the voltage-stabilized power supply chip U2 is grounded. Pin 1 of the voltage-stabilized power supply chip U2 outputs a 5V voltage. The model of the voltage-stabilized power supply chip U2 is 78L05.

5. The anti-shake circuit according to claim 4, characterized in that: The voltage conversion module also includes: A capacitor C2 and a capacitor C3 connected in parallel, wherein one connection point between the capacitor C2 and the capacitor C3 is connected to the collector of the PNP transistor Q2, and another connection point between the capacitor C2 and the capacitor C3 is grounded; A capacitor C6 and a capacitor C7 connected in parallel, wherein one connection point between the capacitor C6 and the capacitor C7 is connected to pin 1 of the voltage-stabilized power supply chip U1, and another connection point between the capacitor C6 and the capacitor C7 is grounded; The capacitor C8 and the capacitor C9 are connected in parallel, one connection point between the capacitor C8 and the capacitor C9 is connected to the pin 1 of the voltage-stabilized power supply chip U2, and the other connection point between the capacitor C8 and the capacitor C9 is grounded.

6. The anti-shake circuit according to claim 1, characterized in that: The anti-shake circuit module comprises: A dual voltage comparator U10, wherein the dual voltage comparator U10 includes an operational amplifier U10B; The operational amplifier U10B has two input terminals and one output terminal; An inductor SL1, one end of which acquires the temperature signal T1, and the other end of which is connected to the non-inverting input end of the operational amplifier U10B via a resistor R49 and a resistor R46 connected in series; A voltage regulator tube D6, wherein a cathode of the voltage regulator tube D6 is connected to a connection point between the inductor SL1 and the resistor R49, and an anode of the voltage regulator tube D6 is grounded; A capacitor C33, one end of the capacitor C33 is connected to the cathode of the voltage regulator tube D6, and the other end of the capacitor C33 is connected to the anode of the voltage regulator tube D6; A resistor R48, one end of which is connected to a 12V power supply, and the other end of which is connected to a connection point between the resistor R46 and the resistor R49; A voltage regulator tube D5, wherein the cathode of the voltage regulator tube D5 is connected to the inverting input terminal of the operational amplifier U10B through a resistor R47, and the anode of the voltage regulator tube D5 is connected to the connection point between the resistor R46 and the resistor R49; A capacitor C32 and a resistor R53 connected in parallel, wherein one connection point between the capacitor C32 and the resistor R53 is connected to the cathode of the voltage regulator tube D5, and another connection point between the capacitor C32 and the resistor R53 is grounded; The output end of the operational amplifier U10B outputs the battery pack communication signal RX through the resistor R42; A resistor R45 and a capacitor C31 connected in series, the other end of the resistor R45 is connected to a 5V power supply, the other end of the capacitor C32 is grounded, and the connection point between the resistor R45 and the capacitor C31 is connected to the output end of the operational amplifier U10B; A voltage regulator tube ZD1, wherein the cathode of the voltage regulator tube ZD1 is connected to the output end of the battery pack communication signal RX, and the anode of the voltage regulator tube ZD1 is grounded; Capacitor C36, one end of the capacitor C36 is connected to the cathode of the voltage regulator tube ZD1, and the other end of the capacitor C36 is connected to the anode of the voltage regulator tube ZD1.

7. The anti-shake circuit according to claim 6, characterized in that: The dual voltage comparator U10 also includes an operational amplifier U10A; The operational amplifier U10A has two input terminals, a ground terminal and a power supply terminal, wherein the in-phase input terminal is connected to a 12V power supply through a resistor R51, the inverting input terminal is grounded through a resistor R52, the ground terminal pin 4 is grounded, and the power supply terminal pin 8 is connected to a 12V power supply; Capacitor C34, one end of the capacitor C34 is connected to the power supply pin 8 of the operational amplifier U10A, and the other end is grounded.

8. The anti-shake circuit according to claim 6, characterized in that: The model of the voltage dual comparator U10 is LM2903.

9. The anti-shake circuit according to claim 1, characterized in that: The signal processing module is a control chip U9; Pin 1 of the control chip U9 receives the battery pack communication signal RX, and pin 28 of the control chip U9 receives the battery pack discharge signal ADC-VOL; Capacitor C25, one end of the capacitor C25 is connected to the 5V power supply of pin 24 of the control chip U9, and the other end of the capacitor C25 is connected to the ground of pin 21 of the control chip U9.

10. The anti-shake circuit according to claim 9, characterized in that: The model of the control chip U9 is T7C-TSSOP28.

Images