A dual MOSFET drive motor forward and reverse circuit

Abstract

This utility model discloses a dual MOSFET drive motor forward and reverse rotation circuit, comprising: a signal input module, a signal processing module, a drive module, and a motor module; the output terminal of the signal input module is connected to the input terminal of the signal processing module, the output terminal of the signal processing module is connected to the input terminal of the drive module, and the output terminal of the drive module is connected to the input terminal of the motor module. Utilizing the low internal resistance of the MOSFETs, energy loss during current transmission is greatly reduced, resulting in a significant decrease in power consumption. Furthermore, the low temperature drift coefficient of the MOSFETs makes their performance more stable and reliable, with minimal impact from temperature fluctuations, reducing equipment failures caused by temperature changes, effectively extending the equipment's service life and maintenance cycle, and providing strong support for the efficient and stable operation of the galvanometer drive.

Description

Technical Field

[0001] This utility model belongs to the field of drive circuit technology and relates to a dual MOS transistor drive motor forward and reverse rotation circuit. Background Technology

[0002] In the current field of galvanometer driving, audio power amplifiers are commonly used to drive motors. However, this driving method has some significant drawbacks in practical applications. When the audio power amplifier is operating, the current is relatively high, which not only increases energy consumption but also causes serious heat generation problems. This large amount of heat generation necessitates additional cooling equipment, increasing cost and system complexity. Furthermore, excessively high temperatures can affect the stability and lifespan of the power amplifier itself and surrounding electronic components, leading to increased equipment failure risk and higher maintenance costs. Summary of the Invention

[0003] To address the problems existing in the background technology, this utility model proposes a dual MOS transistor drive motor forward and reverse rotation circuit.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A dual-MOSFET drive motor forward and reverse rotation circuit includes: a signal input module, a signal processing module, a drive module, and a motor module;

[0006] The output of the signal input module is connected to the input of the signal processing module, the output of the signal processing module is connected to the input of the drive module, and the output of the drive module is connected to the input of the motor module.

[0007] Furthermore, the signal input module includes a motor position signal PDT port, a control signal IT port, an alarm signal MUTE port, a J5 chip circuit, a position sensor circuit, resistors R4, R2, R14, R13, diode D1, and field-effect transistor T1.

[0008] The motor position signal PDT port is connected to the input terminal of resistor R4, the control signal IT port is connected to the input terminal of resistor R2, the alarm signal MUTE port is connected to the input terminal of resistor R14, the output terminal of resistor R14 is connected to the cathode of diode D1 and the gate of field-effect transistor T1, the anode of diode D1 is connected to the source of field-effect transistor T1 and ground, the drain of field-effect transistor T1 is connected to the output terminal of resistor R13, and the input terminal of resistor R13 is connected to the output terminals of resistor R2 and resistor R4.

[0009] Furthermore, the J5 chip circuit includes a PO1 port, a PO2 port, a PDO port, and a PI port;

[0010] Pin 1 of the J5 chip is connected to the positive power supply, pin 2 of the J5 chip is connected to the PO1 port, pin 4 of the J5 chip is connected to the PO2 port, pin 5 of the J5 chip is connected to the PDO port, pin 6 of the J5 chip is connected to ground, pin 8 of the J5 chip is connected to the PI port, pin 9 of the J5 chip is connected to the alarm signal MUTE port, and pin 10 of the J5 chip is connected to the negative power supply.

[0011] Furthermore, the position sensor circuit includes a position sensor;

[0012] Pin 1 of the position sensor is connected to port PO1, pin 2 of the position sensor is connected to port PO2, and pin 3 of the position sensor is connected to ground.

[0013] Furthermore, the signal processing module includes resistors R1, R3, R5, and R7, capacitors C1 and C2, amplifier U1-A, and amplifier U1-B;

[0014] The input terminal of resistor R1 is connected to the input terminal of resistor R3 and the output terminal of resistor R4. The output terminal of resistor R1 is connected to the non-inverting input terminal of amplifier U1-A. The positive power supply terminal of amplifier U1-A is connected to the positive terminal of the power supply and the input terminal of capacitor C1. The output terminal of capacitor C1 is connected to ground. The negative power supply terminal of amplifier U1-A is connected to the input terminal and the negative terminal of capacitor C2. The output terminal of capacitor C2 is connected to ground. The inverting input terminal of amplifier U1-A is connected to the input terminals of resistor R5, resistor R7, and amplifier U1-B. The output terminal of resistor R5 is connected to the output terminal of amplifier U1-A. The output terminal of resistor R7 is connected to the output terminal of amplifier U1-B. The output terminal of resistor R3 is connected to the non-inverting input terminal of amplifier U1-B.

[0015] Furthermore, the drive module includes resistors R16, R17, R6, R9, R15, R8, a P-type MOSFET Q1, an N-type MOSFET Q2, capacitors C3 and C4.

[0016] The input terminal of resistor R16 is connected to the output terminal of amplifier U1-A. The output terminal of resistor R16 is connected to the input terminal of resistor R9 and the gate of P-type MOSFET Q1. The source of P-type MOSFET Q1 is connected to the output terminal of resistor R9, the positive terminal of the power supply, and the input terminal of capacitor C3. The output terminal of capacitor C3 is connected to ground. The drain of P-type MOSFET Q1 is connected to the input terminal of resistor R15. The input terminal of resistor R17 is connected to the output terminal of amplifier U1-B. The output terminal of resistor R17 is connected to the input terminal of resistor R6 and the gate of N-type MOSFET Q2. The source of N-type MOSFET Q2 is connected to the output terminal of resistor R6, the negative terminal of the power supply, and the input terminal of capacitor C4. The output terminal of capacitor C4 is connected to ground. The drain of N-type MOSFET Q2 is connected to the input terminal of resistor R8. The output terminal of resistor R15 is connected to the output terminal of resistor R8.

[0017] Furthermore, the motor module includes capacitor C5, resistors R11, R12, R18, R10, and motor M1;

[0018] The input terminal of capacitor C5 is connected to the input terminal of motor M1, the output terminal of resistor R15, and the output terminal of resistor R8. The output terminal of motor M1 is connected to the input terminals of resistor R10, resistor R18, and resistor R12. The output terminal of resistor R11 is connected to the output terminal of resistor R12 and the inverting input terminal of amplifier U1-B. The output terminal of resistor R18 is connected to the PI port.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By leveraging the low internal resistance of MOSFETs during operation, energy loss during current transmission is significantly reduced, resulting in a substantial decrease in power consumption. This not only saves energy but also lowers operating costs. Simultaneously, low power consumption directly translates to low heat generation, eliminating the need for complex and bulky cooling systems, thus reducing overall equipment cost and size, and improving system portability and compactness. Furthermore, the low temperature drift coefficient of MOSFETs makes their performance more stable and reliable, minimally affected by temperature fluctuations, reducing equipment failures caused by temperature changes, effectively extending equipment lifespan and maintenance cycles, and providing strong support for the efficient and stable operation of the galvanometer drive. Attached Figure Description

[0021] Figure 1 This utility model discloses a circuit diagram for a dual MOS transistor driving motor for forward and reverse rotation.

[0022] Figure 2 This is a block diagram of a dual MOS transistor drive motor forward and reverse rotation circuit according to this utility model;

[0023] Figure 3This is a diagram showing the forward rotation signal transmission of a dual MOS transistor driven motor according to this utility model.

[0024] Figure 4 This is a diagram showing the signal transmission for reversing a dual-MOS transistor driven motor according to this utility model. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] like Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: a dual MOS transistor drive motor forward and reverse circuit, comprising: a signal input module, a signal processing module, a drive module, and a motor module.

[0027] The output of the signal input module is connected to the input of the signal processing module, the output of the signal processing module is connected to the input of the drive module, and the output of the drive module is connected to the input of the motor module.

[0028] The signal input module includes a motor position signal PDT port, a control signal IT port, an alarm signal MUTE port, a J5 chip circuit, a position sensor circuit, resistors R4, R2, R14, R13, diode D1, and field-effect transistor T1.

[0029] The motor position signal PDT port is connected to the input terminal of resistor R4, the control signal IT port is connected to the input terminal of resistor R2, the alarm signal MUTE port is connected to the input terminal of resistor R14, the output terminal of resistor R14 is connected to the cathode of diode D1 and the gate of field-effect transistor T1, the anode of diode D1 is connected to the source of field-effect transistor T1 and ground, the drain of field-effect transistor T1 is connected to the output terminal of resistor R13, and the input terminal of resistor R13 is connected to the output terminals of resistor R2 and resistor R4.

[0030] The J5 chip circuit includes PO1 port, PO2 port, PDO port, and PI port.

[0031] Pin 1 of the J5 chip is connected to the positive power supply, pin 2 of the J5 chip is connected to the PO1 port, pin 4 of the J5 chip is connected to the PO2 port, pin 5 of the J5 chip is connected to the PDO port, pin 6 of the J5 chip is connected to ground, pin 8 of the J5 chip is connected to the PI port, pin 9 of the J5 chip is connected to the alarm signal MUTE port, and pin 10 of the J5 chip is connected to the negative power supply.

[0032] The position sensor circuit includes a position sensor;

[0033] Pin 1 of the position sensor is connected to port PO1, pin 2 of the position sensor is connected to port PO2, and pin 3 of the position sensor is connected to ground.

[0034] The signal input module receives various signals and transmits them to the corresponding parts of the signal processing module and the motor module for processing, so that they meet the working requirements of other components in the signal processing module and the motor module.

[0035] The field-effect transistor T1, diode D1, resistor R13, and resistor R14 form a protection circuit.

[0036] Resistor R14 limits the current flowing through diode D1 and acts as a voltage divider in the circuit, ensuring that the entire circuit operates within the normal voltage range.

[0037] Resistor R13 prevents excessive current from flowing through the drain of MOSFET T1, thus avoiding damage to the MOSFET due to overcurrent.

[0038] Under normal operating conditions, the field-effect transistor T1 is in the off state. When the detected alarm signal MUTE exceeds a certain threshold, the field-effect transistor T1 is in the on state, causing the subsequent circuit to stop or enter a safe mode.

[0039] The position sensor detects the motor's position information and converts it into an electrical signal output. This provides real-time position feedback to the dual-MOSFET motor drive circuit, enabling the circuit to precisely control the motor's movement based on the position signal.

[0040] The signal processing module includes resistors R1, R3, R5, and R7, capacitors C1 and C2, amplifier U1-A, and amplifier U1-B;

[0041] The input terminal of resistor R1 is connected to the input terminal of resistor R3 and the output terminal of resistor R4. The output terminal of resistor R1 is connected to the non-inverting input terminal of amplifier U1-A. The positive power supply terminal of amplifier U1-A is connected to the positive terminal of the power supply and the input terminal of capacitor C1. The output terminal of capacitor C1 is connected to ground. The negative power supply terminal of amplifier U1-A is connected to the input terminal and the negative terminal of capacitor C2. The output terminal of capacitor C2 is connected to ground. The inverting input terminal of amplifier U1-A is connected to the input terminals of resistor R5, resistor R7, and amplifier U1-B. The output terminal of resistor R5 is connected to the output terminal of amplifier U1-A. The output terminal of resistor R7 is connected to the output terminal of amplifier U1-B. The output terminal of resistor R3 is connected to the non-inverting input terminal of amplifier U1-B.

[0042] The signal processing module distributes the processed signal to different circuit branches to achieve coordinated control of the entire dual MOS transistor drive motor forward and reverse circuit.

[0043] The control signal IT port outputs different waveform signals. Amplifiers U1-A and U1-B amplify the input analog signals. Amplifier U1-A controls P-type MOS transistor Q1, and amplifier U1-B controls N-type MOS transistor Q2.

[0044] When P-type MOSFET Q1 is turned on and N-type MOSFET Q2 is turned off, the motor swings in the correct direction. For example... Figure 3 The direction indicated by the middle arrow is the direction of signal transmission.

[0045] When the P-type MOSFET Q1 is off and the N-type MOSFET Q2 is on, the motor swings in reverse. For example... Figure 4 The direction indicated by the middle arrow is the direction of signal transmission.

[0046] The capacitors C1 and C2 are power supply filter capacitors for amplifiers U1-A and U1-B, which can filter out high-frequency noise in the circuit and make the power supply voltage smoother and more stable.

[0047] The drive module includes resistors R16, R17, R6, R9, R15, R8, P-type MOSFET Q1, N-type MOSFET Q2, capacitor C3, and capacitor C4.

[0048] The input terminal of resistor R16 is connected to the output terminal of amplifier U1-A. The output terminal of resistor R16 is connected to the input terminal of resistor R9 and the gate of P-type MOSFET Q1. The source of P-type MOSFET Q1 is connected to the output terminal of resistor R9, the positive terminal of the power supply, and the input terminal of capacitor C3. The output terminal of capacitor C3 is connected to ground. The drain of P-type MOSFET Q1 is connected to the input terminal of resistor R15. The input terminal of resistor R17 is connected to the output terminal of amplifier U1-B. The output terminal of resistor R17 is connected to the input terminal of resistor R6 and the gate of N-type MOSFET Q2. The source of N-type MOSFET Q2 is connected to the output terminal of resistor R6, the negative terminal of the power supply, and the input terminal of capacitor C4. The output terminal of capacitor C4 is connected to ground. The drain of N-type MOSFET Q2 is connected to the input terminal of resistor R8. The output terminal of resistor R15 is connected to the output terminal of resistor R8.

[0049] The capacitors C3 and C4 are input power supply filter capacitors, which can filter out high-frequency noise in the forward and reverse circuit of the dual MOS transistor drive motor, making the power supply voltage smoother and more stable.

[0050] Resistor R15 and resistor R8 are current-limiting resistors to prevent a switching time difference between the positive and negative power supplies of P-type MOSFET Q1 and N-type MOSFET Q2.

[0051] The motor module includes capacitor C5, resistors R11, R12, R18, R10, and motor M1.

[0052] The input terminal of capacitor C5 is connected to the input terminal of motor M1, the output terminal of resistor R15, and the output terminal of resistor R8. The output terminal of motor M1 is connected to the input terminals of resistor R10, resistor R18, and resistor R12. The output terminal of resistor R11 is connected to the output terminal of resistor R12 and the inverting input terminal of amplifier U1-B. The output terminal of resistor R18 is connected to the PI port.

[0053] The capacitor C5 and resistor R11 form a feedback circuit. The capacitor C5 filters out noise, performs phase compensation, and ensures the stability of the circuit. The resistor R11 determines the feedback coefficient. By adjusting the resistance value of the resistor R11, the strength of the feedback can be changed.

[0054] The resistors R12 and R10 form an electric circulating circuit.

[0055] The current in the circuit can be precisely controlled by resistors R12 and R10, so that the current can be kept near the set value under various loads and power fluctuations. Through feedback and closed-loop control, it can self-regulate, giving the circuit good stability and reliability. When overcurrent is detected, the voltage across resistor R12 rises abnormally, which can trigger the protection mechanism to prevent damage to circuit components due to overcurrent.

[0056] By leveraging the low internal resistance of MOSFETs during operation, energy loss during current transmission is significantly reduced, resulting in a substantial decrease in power consumption. This not only saves energy but also lowers operating costs. Simultaneously, low power consumption directly translates to low heat generation, eliminating the need for complex and bulky cooling systems, thus reducing overall equipment cost and size, and improving system portability and compactness. Furthermore, the low temperature drift coefficient of MOSFETs makes their performance more stable and reliable, minimally affected by temperature fluctuations, reducing equipment failures caused by temperature changes, effectively extending equipment lifespan and maintenance cycles, and providing strong support for the efficient and stable operation of the galvanometer drive.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-MOSFET drive motor forward and reverse rotation circuit, characterized in that, It includes: a signal input module, a signal processing module, a drive module, and a motor module; The output of the signal input module is connected to the input of the signal processing module, the output of the signal processing module is connected to the input of the drive module, and the output of the drive module is connected to the input of the motor module. The driving module includes a P-type MOSFET Q1 and an N-type MOSFET Q2; The signal processing module includes amplifier U1-A and amplifier U1-B; The drive module also includes resistors R16, R17, R6, R9, R15, R8, capacitor C3, and capacitor C4. The input terminal of resistor R16 is connected to the output terminal of amplifier U1-A. The output terminal of resistor R16 is connected to the input terminal of resistor R9 and the gate of P-type MOSFET Q1. The source of P-type MOSFET Q1 is connected to the output terminal of resistor R9, the positive power supply terminal, and the input terminal of capacitor C3. The output terminal of capacitor C3 is connected to ground. The drain of P-type MOSFET Q1 is connected to the input terminal of resistor R15. The input terminal of resistor R17 is connected to the output terminal of amplifier U1-B. The output terminal of resistor R17 is connected to the input terminal of resistor R6 and the gate of N-type MOSFET Q2. The source of N-type MOSFET Q2 is connected to the output terminal of resistor R6, the negative power supply terminal, and the input terminal of capacitor C4. The output terminal of capacitor C4 is connected to ground. The drain of N-type MOSFET Q2 is connected to the input terminal of resistor R8. The output terminal of resistor R15 is connected to the output terminal of resistor R8.

2. The dual MOS transistor drive motor forward and reverse rotation circuit according to claim 1, characterized in that, The signal input module includes a motor position signal PDT port, a control signal IT port, an alarm signal MUTE port, a J5 chip circuit, a position sensor circuit, resistors R4, R2, R14, R13, diode D1, and field-effect transistor T1. The motor position signal PDT port is connected to the input terminal of resistor R4, the control signal IT port is connected to the input terminal of resistor R2, the alarm signal MUTE port is connected to the input terminal of resistor R14, the output terminal of resistor R14 is connected to the cathode of diode D1 and the gate of field-effect transistor T1, the anode of diode D1 is connected to the source of field-effect transistor T1 and ground, the drain of field-effect transistor T1 is connected to the output terminal of resistor R13, and the input terminal of resistor R13 is connected to the output terminals of resistor R2 and resistor R4.

3. The dual MOS transistor drive motor forward and reverse circuit according to claim 2, characterized in that, The J5 chip circuit includes PO1 port, PO2 port, PDO port, and PI port; Pin 1 of the J5 chip is connected to the positive power supply, pin 2 of the J5 chip is connected to the PO1 port, pin 4 of the J5 chip is connected to the PO2 port, pin 5 of the J5 chip is connected to the PDO port, pin 6 of the J5 chip is connected to ground, pin 8 of the J5 chip is connected to the PI port, pin 9 of the J5 chip is connected to the alarm signal MUTE port, and pin 10 of the J5 chip is connected to the negative power supply. The position sensor circuit includes a position sensor; Pin 1 of the position sensor is connected to port PO1, pin 2 of the position sensor is connected to port PO2, and pin 3 of the position sensor is connected to ground.

4. The dual MOS transistor drive motor forward and reverse rotation circuit according to claim 2, characterized in that, The signal processing module includes resistors R1, R3, R5, and R7, capacitors C1 and C2, amplifier U1-A, and amplifier U1-B; The input terminal of resistor R1 is connected to the input terminal of resistor R3 and the output terminal of resistor R4. The output terminal of resistor R1 is connected to the non-inverting input terminal of amplifier U1-A. The positive power supply terminal of amplifier U1-A is connected to the positive terminal of the power supply and the input terminal of capacitor C1. The output terminal of capacitor C1 is connected to ground. The negative power supply terminal of amplifier U1-A is connected to the input terminal and the negative terminal of capacitor C2. The output terminal of capacitor C2 is connected to ground. The inverting input terminal of amplifier U1-A is connected to the input terminals of resistor R5, resistor R7, and amplifier U1-B. The output terminal of resistor R5 is connected to the output terminal of amplifier U1-A. The output terminal of resistor R7 is connected to the output terminal of amplifier U1-B. The output terminal of resistor R3 is connected to the non-inverting input terminal of amplifier U1-B.

5. The dual MOS transistor drive motor forward and reverse rotation circuit according to claim 4, characterized in that, The motor module includes capacitor C5, resistors R11, R12, R18, R10, and motor M1; The input terminal of capacitor C5 is connected to the input terminal of motor M1, the output terminal of resistor R15, and the output terminal of resistor R8. The output terminal of motor M1 is connected to the input terminals of resistor R10, resistor R18, and resistor R12. The output terminal of resistor R11 is connected to the output terminal of resistor R12 and the inverting input terminal of amplifier U1-B. The output terminal of resistor R18 is connected to the PI port.

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