TWI408891B - Improved control module for acceleration device and a controlling method thereof - Google Patents

Abstract

The present invention is related to an improved control module for an acceleration device and a method for controlling the improved control module, the improved control module for the acceleration comprises: a feedback unit, the feedback unit is capable of feeding a drive signal outputted to the acceleration device back to an amplifier unit for adjusting output gain of the amplifier unit for supporting the acceleration device. The method for controlling the improved control module comprises the steps of: determining whether the rotation speed of the acceleration device is decreased due to a loading effect, if yes, a amplifier unit increases output gain for decreasing a drive signal voltage value due to the feedback unit; and determining whether the rotation speed of the acceleration device is increased due to loading effect, if yes, the amplifier unit decreases output gain for increasing the drive signal voltage value due to feedback unit.

Description

Improved acceleration and deceleration mechanism control module and control method thereof

The invention relates to a control module of an acceleration/deceleration mechanism, in particular to an improved acceleration/deceleration mechanism control for adjusting the rotation speed of the acceleration/deceleration mechanism for a different load effect of an acceleration/deceleration mechanism by means of a negative feedback method. Module and its control method.

In recent years, electric machine tools have become an indispensable tool in daily life. Whether it is to drill holes in walls or to assemble wooden cabinets and shoe cabinets by themselves, electric power tools play an indispensable role. The conventional electric power tool system has a trigger button, and is designed with an electronic circuit. When the user presses the trigger button, the electronic circuit can be used to control the motor rotation of the electric machine tool. However, the conventional use Most of the electronic circuits of the power tool machine are designed to control only the rotation of the motor, and there are few designs that can simultaneously control other functions in addition to controlling the rotation of the motor.

However, when people use electric power tools, the problem often is that the power tool can't automatically adjust the speed of the motor for different materials to be drilled. For example, using a power tool to drill a wall, when using When the trigger of the trigger is pressed, the motor of the electric machine can be controlled to rotate through the electronic circuit, but when the electric machine touches the wall, the motor of the electric machine is subjected to an excessive load effect. The speed is instantaneously weakened. Conversely, if a thin wood board is drilled using a power tool, the load on the motor is relatively small, and the motor speed is too fast, thus wasting unnecessary power consumption, that is, wasting power. .

Therefore, the inventor of the present invention has in view of the above-mentioned advantages in controlling the electronic circuit of the electronic machine motor, and has made great efforts to research and create, and finally developed an improved acceleration and deceleration mechanism control module and a control method thereof according to the present invention.

The main object of the present invention is to provide an improved acceleration/deceleration mechanism control module, which can automatically adjust the acceleration/deceleration of the acceleration/deceleration mechanism by means of negative feedback to avoid the occurrence of insufficient or excessive rotation speed of the acceleration/deceleration mechanism. The situation happened.

Another object of the present invention is to provide an improved control method for an acceleration/deceleration mechanism control module, which can automatically adjust the output gain of the amplifier unit according to different load effects experienced by the acceleration/deceleration mechanism, thereby increasing / Reduce the speed of the acceleration and deceleration mechanism to maintain the normal working state of the acceleration and deceleration mechanism.

In order to accomplish the above main purpose, the inventor of the present invention has developed an improved acceleration/deceleration mechanism control module. The improved acceleration/deceleration mechanism control module includes an amplifier unit connected to the input source to receive and amplify the input signal. a pulse width modulation unit connected to the amplifier unit for receiving an amplification signal and performing pulse width modulation of the amplification signal; a switching transistor connected to the pulse width modulation unit to receive a modulation And outputting a driving signal to drive the acceleration/deceleration mechanism; an oscillating unit is configured to generate an oscillating wave signal to the pulse width modulation unit, wherein the oscillating unit can adjust the frequency of the modulating signal; and The unit is connected to the acceleration/deceleration mechanism and the amplifier unit, and the feedback unit can feed back the driving signal outputted to the acceleration/deceleration mechanism to the amplifier unit. When the driving signal has an error due to the loading effect of the acceleration/deceleration mechanism, the amplifier unit The error can be corrected to maintain a constant drive signal.

In addition, in order to accomplish the other object described above, the inventor of the present invention developed an improved control method for the acceleration and deceleration mechanism control module, which can automatically adjust the signal of an improved acceleration/deceleration mechanism control module according to different load effects. Gaining, so that an acceleration/deceleration mechanism maintains normal operation, the method includes the following steps: (1) an input source inputs an input signal to an amplifier unit; (2) the amplifier unit receives and processes the input signal; (3) an amplifier One of the output stage transistors outputs an amplification signal to a pulse width modulation unit; (4) an oscillation unit generates an oscillation wave signal to the pulse width modulation unit; (5) the pulse width modulation unit receives the amplification signal And the oscillating wave signal is used to perform pulse width modulation; (6) the pulse width modulation unit outputs a modulation signal to a switching transistor; (7) the switching transistor outputs a driving signal to drive an acceleration/deceleration mechanism; 8) a feedback unit returns a driving signal voltage outputted to the acceleration/deceleration mechanism to the amplifier unit; (9) determining whether the acceleration/deceleration mechanism is weakened due to a load effect, and if so, executing the step ( 10), if not, proceed to step (11); (10) the amplifier unit automatically increases its output gain due to the feedback unit to reduce the drive signal voltage value, and performs step (3); (11) determine whether to add The speed reduction mechanism is increased in speed due to the load effect. If yes, step (12) is performed. If not, step (13) is performed; (12) the amplifier unit automatically reduces its output gain due to the feedback unit to increase the drive signal voltage value. And performing step (3); and (13) switching the transistor to continuously output the driving signal to drive the acceleration/deceleration mechanism.

In order to more clearly describe an improved acceleration/deceleration mechanism and a control method thereof according to the present invention, the following will be described in detail with reference to the drawings.

Please refer to the first figure, which is an architectural diagram of an improved acceleration/deceleration mechanism control module. Preferably, the improved acceleration/deceleration mechanism control module 1 is connected to an input source 2 for receiving and processing an input signal. To drive an acceleration and deceleration mechanism 3, which includes:

An amplifier unit 11 is connected to the input source 2 to receive and amplify the input signal. Please refer to the second figure, which is a circuit structure diagram of the amplifier unit. In this embodiment, the amplifier unit 11 includes: an operational amplifier. 111, having an amplifier positive input terminal 1112, an amplifier negative input terminal 1111, and an amplifier output terminal 1113. As shown in the second figure, the input signal is input to the amplifier unit 11 through a signal input terminal Vin, and the operation is performed. The amplifier 111 can perform signal amplification on the input signal and output an amplified signal; a second variable resistor RV2 is connected to the positive input terminal 1112 of the amplifier, and the resistance value of the second variable resistor RV2 can be adjusted. Adjusting the low level of the amplified signal outputted by the output end of the amplifier 1113; a diode D1 is connected in series with the second variable resistor RV2, and the role of the diode D1 is to stabilize the voltage level to prevent When one of the external working voltages Vcc is fluttering, it affects the value of the low level of the amplified signal; two amplification resistors R1, R3, wherein an amplification resistor R3 is connected to the amplifier The negative input terminal 1111 and the amplifier output terminal 1113, the other amplification resistor R1 is connected to the negative input terminal 1111 of the amplifier, and the two amplification resistors are connected in series, and the amplification resistor can assist the operational amplifier 111 to perform amplification of the input signal; A variable resistor RV1 is connected to the amplification resistor R1. By adjusting the resistance value of the first variable resistor RV1, the power of driving the driving signal of the acceleration/deceleration mechanism 3 can be adjusted to increase or decrease the acceleration/deceleration. The driving force of the mechanism 3; a voltage stabilizing capacitor C5 is connected to the first variable resistor RV1 and the amplifying resistor R1, the stabilizing capacitor C5 is used to stabilize the high level of the amplified signal; an output stage transistor Q5 is connected At the output end of the amplifier 1113, as the output stage of the amplifier unit 11, the output stage transistor Q5 is outputted through a signal output terminal Vout to output an amplification signal; an output stage resistor R7 is connected in series to the output stage transistor Q5 to The coupling resistance of the output stage transistor Q5 and the ground terminal; and a feedback resistor R2 are connected to the negative input terminal 1111 of the amplifier, and the driving signal outputted to the acceleration/deceleration mechanism 3 can be transmitted through the feedback resistor R2. Returning to the negative input terminal 1111 of the amplifier; a pulse width modulation unit 12 is connected to the amplifier unit 11 to receive the amplified signal, and performs pulse width modulation of the amplified signal; a switching transistor 14 is connected to the The pulse width modulation unit 12 receives a modulation signal and outputs the driving signal to drive the acceleration/deceleration mechanism 3; an oscillation unit 13 is connected to the amplifier unit 11 and the pulse width modulation unit 12, and the oscillation unit 13 can generate An oscillating wave signal is sent to the pulse width modulation unit 12 to adjust the frequency of the modulating signal. Please refer to the third figure, which is a circuit structure diagram of the oscillating unit. The oscillator unit 13 includes a comparator 131 having a comparison. The positive input terminal 1312, a comparator negative input terminal 1311, and a comparator output terminal 1313, the comparator 131 can perform a comparison between the comparator positive input terminal 1312 and the comparator negative input terminal 1311. a first voltage dividing resistor Rt4, one end of the first voltage dividing resistor Rt4 is connected to the comparator positive input terminal 1312, and the other end of the first voltage dividing resistor Rt4 is coupled to an applied operating voltage to generate a voltage dividing resistor end Pressure a voltage dividing resistor Rt3, one end of the second voltage dividing resistor Rt3 is connected to the comparator positive input terminal 1312, and the other end is grounded to generate the voltage dividing resistor terminal voltage; a positive feedback resistor Rt2, the positive return One end of the resistor Rt2 is connected to the comparator positive input terminal 1312, and the other end thereof is connected to the comparator output terminal 1313 to return the voltage of the comparator output terminal 1313 to the comparator positive input terminal 1312; The charging capacitor Ct2 is connected to the comparator negative input terminal 1311. When the operating voltage Vcc is applied to the second voltage dividing resistor Rt3 to generate the voltage dividing resistor terminal voltage Vrt3, the charging capacitor Ct2 starts to be charged; Rt1 is coupled to the comparator negative input terminal 1311 and the comparator output terminal 1313. The value of the charging resistor Rt1 determines the charging time of the charging capacitor Ct2. A buffering resistor Rt5 is connected to the comparator output terminal 1313 to As a buffer interface of the comparator 131 and its next-stage circuit; a discharge resistor Rt6 is connected to the charging capacitor Ct2, and the value of the discharge resistor Rt6 is adjusted to shorten the discharge time of the charging capacitor Ct2; and a discharge transistor Q6 is Connected to the discharge resistor Rt6, when the charging capacitor Ct2 performs discharge, the discharge transistor Q6 will be turned on to effectively shorten the discharge time of the charging capacitor Ct2; and a feedback unit 15 is connected in a negative feedback manner. The acceleration/deceleration mechanism 3 and the amplifier unit 11 can feed back the driving signal outputted to the acceleration/deceleration mechanism 3 to the amplifier unit 11. Therefore, when the acceleration/deceleration mechanism 3 is subjected to different loading effects, When the speed is weakened/enhanced, the amplifier unit 11 can automatically adjust its output gain to increase/decrease the speed of the acceleration/deceleration mechanism 3 to maintain its normal operating state. Please also refer to the fourth figure, which is a circuit structure diagram of the feedback unit. The feedback unit 15 includes: a protection resistor Rs1 connected to the acceleration/deceleration mechanism 3 and the switching transistor 14 through a driving signal terminal dri. The switch switching loss and the temperature rise of the transistor which are generated during the switching of the switching transistor 14 are reduced; a protection capacitor Cs1 is connected to the protection resistor Rs1, and the protection capacitor Cs1 is combined with the protection resistor Rs1 to reduce the switching transistor 14 The switch switching loss and the rise of the transistor temperature during the switching process; a filter resistor Rf2 is connected to the protection resistor Rs1 and the protection capacitor Cs1 to perform filtering of the drive signal read by the protection resistor Rs1 and the protection capacitor Cs1 And a filter capacitor Cf2 is connected to the filter resistor Rf2, and is connected to the amplifier unit 11 through a feedback terminal VFB. The filter capacitor Cf2 can receive the driving signal and cooperate with the filter resistor Rf2 to perform driving signal filtering. Then, a driving signal voltage Vdri (the driving signal voltage not shown in the fourth figure) is fed back to the amplifier unit 11 through the feedback terminal VFB. .

Referring to the second and fourth figures, in the embodiment, the operational amplifier 111, the two amplification resistors (R1, R3), the feedback resistor R2, and the second variable resistor RV2 are configured. A reverse addition circuit, according to the characteristics of the reverse addition circuit, if the voltage value of the signal input terminal Vin and the feedback terminal VFB is changed, the output voltage of the amplifier output terminal 1113 is affected. In this embodiment, the driving signal voltage Vdri is fed back to the amplifier unit 11 through the feedback terminal VFB through a negative feedback mode, and the characteristics of the reverse adding circuit are negatively fed back to achieve automatic adjustment. The rotation speed of the acceleration/deceleration mechanism 3. When the acceleration/deceleration mechanism 3 has not been driven, the feedback terminal VFB has an initial value of the driving signal voltage Vdri. As the acceleration/deceleration mechanism 3 is driven to increase its rotational speed and torque, the driving signal voltage Vdri decreases. It is called a first driving signal voltage value. If the value of the driving signal voltage returned by the feedback terminal VFB is greater than/less than the value of the first driving signal voltage, it indicates that the acceleration/deceleration mechanism 3 is subjected to the load effect and the rotation speed is weakened. / increase; at this time, the inverse addition circuit composed of the operational amplifier 111, the two amplification resistors (R1, R3), the feedback resistor R2, and the second variable resistor RV2 will be received by the feedback terminal VFB. The value of the driving signal voltage is greater than/less than the value of the first driving signal voltage, causing the output voltage of the amplifier output terminal 1113 to decrease/increase, and then, by the output stage transistor Q5 and the output stage resistor R7, The voltage value of the amplified signal outputted by the signal output terminal Vout will increase/decrease accordingly, that is, increase/decrease the driving ability of the acceleration/deceleration mechanism 3, and increase/decrease the rotational speed of the acceleration/deceleration mechanism 3, Therefore, the acceleration/deceleration machine 3 can maintain a normal working state under the load effect.

In the above-described modified acceleration/deceleration mechanism control module 1, in the embodiment, the acceleration/deceleration mechanism 3 is a motor. Therefore, when the motor is subjected to different load effects, the rotation speed and the torque are increased/decreased. The feedback unit 15 transmits the driving signal voltage to the amplifier unit 11 through negative feedback, and the amplifier unit 11 automatically adjusts the driving force to the motor by the negative feedback characteristic, so that the motor speed and Torque is reduced/increased to maintain normal motor operation. In addition, the switching transistor 14 can use a double carrier junction transistor (BJT), a gate insulated bipolar transistor (IGBT), or a metal oxide semiconductor field effect transistor (MOSFET), preferably. In this embodiment, a high power is used compared to the metal oxide semiconductor field effect transistor (MOSFET); and the discharge transistor Q6 can use a double carrier junction transistor (BJT), a gate A very insulated bipolar transistor (IGBT) or a metal oxide semiconductor field effect transistor (MOSFET) is preferably used in this embodiment as a bipolar junction transistor (BJT).

The above clearly discloses the functions of the circuit units of the improved acceleration/deceleration mechanism control module. In addition, please refer to the fifth A diagram and the fifth B diagram at the same time, which is a flowchart of a control method for the improved acceleration/deceleration mechanism control module. The improved control method of the acceleration/deceleration mechanism control module can automatically adjust the signal gain of the improved acceleration/deceleration mechanism control module according to different load effects, and the main steps include:

First, step (601) is performed, the input source 2 inputs the input signal to the amplifier unit 11; then, in step (602), the amplifier unit 11 receives and processes the input signal; then, performs step (603), the amplifier unit 11 The output stage transistor Q5 outputs the amplification signal to the pulse width modulation unit 12; then, performing step (604), the oscillation unit 13 generates the oscillation wave signal to the pulse width modulation unit 12; 605), the pulse width modulation unit 12 receives the amplification signal and the oscillation wave signal to perform pulse width modulation; after the step (605), the step (606) is performed, and the pulse width modulation unit 12 outputs the modulation signal to the Switching the transistor 14; then, performing step (607), the switching transistor 14 outputs the driving signal to drive the acceleration/deceleration mechanism 3; then, performing step (608), the feedback unit 15 is outputted to the acceleration/deceleration mechanism 3 The driving signal voltage is fed back to the amplifier unit 11; then, step (609) is executed to determine whether the acceleration/deceleration mechanism 3 is decelerated due to the load effect, and if the acceleration/deceleration mechanism 3 is actually weakened due to the load effect, then Step (610), the amplifier unit 11 automatically increases its output gain due to the feedback unit to reduce the driving signal voltage value, and automatically performs step (603); if not, performs step (611) to determine whether to accelerate or decelerate The mechanism 3 increases the rotational speed due to the load effect. If yes, the step (612) is automatically performed, and the amplifier unit 11 automatically reduces the output gain due to the feedback unit to increase the drive signal voltage value, and automatically performs the step (603); Then, the step (613) is performed to switch the transistor to continuously output the driving signal to drive the acceleration/deceleration mechanism. It should be added that, in the steps (610) and (612), the amplifier unit 11 can automatically increase/decrease its output gain to reduce/increase the value of the driving signal voltage, because in the amplifier unit 11, The operational amplifier 111, the two amplification resistors (R1, R3), the feedback resistor R2, the reverse addition circuit formed by the second variable resistor RV2, and the output stage transistor Q5 and the output stage The result of the use of resistor R7 is a natural consequence of the circuit characteristics. Therefore, the detailed steps of step (610) and step (612) will not be described.

The above clearly reveals the main flow steps of the control method of the improved acceleration/deceleration mechanism control module, but in order to further detail the control method of the improved acceleration/deceleration mechanism control module, please refer to the sixth figure, which is the step ( 602) Detailed step flow chart, wherein step (602) further comprises the following detailed steps:

First, the step (6021) must be performed first, the signal input terminal Vin receives the input signal; then, the step (6022) is performed, the operational amplifier 111 is matched with the amplification resistors R1 and R3 to perform signal amplification; and then, the step (6023) is performed. Adjusting the resistance value of the second variable resistor RV2 to determine the low level of the amplification signal; and performing the step (6024), the operational amplifier 111 outputs the amplification signal to the output stage transistor Q5, and proceeds to the next main step , step (603).

In addition, please refer to the seventh and third figures, which are detailed step flowcharts of the step (604), wherein the step (604) further includes the following detailed steps:

First, the step (6041) is performed, the working voltage Vcc is applied to the first voltage dividing resistor Rt4; then, the step (6042) is performed to generate the voltage dividing resistor terminal voltage Vrt3; then, the step (6043) is performed, the charging capacitor is performed. Ct2 performs charging and generates the capacitor terminal voltage Vct2; following the step (6043), and then performing step (6044) to determine whether the capacitor terminal voltage Vct2 is equal to the voltage dividing resistor terminal voltage Vrt3, and if the capacitor terminal voltage Vct2 is equal to the voltage dividing resistor terminal Pressing Vrt3, step (6045) is performed, the discharge transistor turns on Q6 to accelerate the discharge of the charging capacitor Ct2, and if not, repeats the step (6043), and after the step (6045), the step (6046) is performed, charging The capacitor Ct2 performs discharge and generates a capacitor terminal voltage Vct2; then, step (6047) is performed to determine whether the capacitor terminal voltage Vct2 is equal to the negative value of the voltage divider resistor terminal voltage Vrt3, and if the capacitor terminal voltage Vct2 is equal to the voltage divider resistor terminal voltage Vrt3 If the value is negative, the step (6048) is automatically performed, and the comparator 131 outputs the periodically oscillating wave signal to the pulse width modulation unit 12, and continues to perform the next main step, step (605), and if not, Repeat the steps (6 046).

In addition, please continue to refer to the eighth and fourth figures, which is a detailed step flow chart of the step (608), wherein the step (608) further includes the following detailed steps:

First, the step (6081) is performed first, and the driving signal on the acceleration/deceleration mechanism 3 is read out through the protection resistor Rs1 and the protection capacitor Cs1. Then, in step (6082), the filter resistor Rf2 and the filter capacitor Cf2 are transmitted through the filter resistor Cf2. Performing filtering on the driving signal voltage; and performing step (6083), feeding back the driving signal voltage to the amplifier unit through the feedback resistor R2, and continuing to perform the next main step, step (609).

Thus, with the improved control method of the acceleration/deceleration mechanism control module, the improved acceleration/deceleration mechanism control module 1 can be used for the feedback operation of the acceleration/deceleration mechanism 3 under different load effects. The unit 15 feeds back the driving signal voltage to the amplifier unit 11. By the characteristics of the internal circuit of the amplifier unit 11, the amplifier unit 11 automatically adjusts its output gain, and adjusts the rotational speed and torque of the acceleration/deceleration mechanism 3.

An improved acceleration/deceleration mechanism control module and a control method thereof according to the present invention have been fully described by the above-described preferred embodiments. Therefore, in summary, the present invention has the following advantages:

The improved acceleration/deceleration mechanism control module has a feedback unit that uses a negative feedback method to feed back the driving signal voltage to the amplifier unit, so that the large unit can follow the value of the driving signal voltage. The output gain is adjusted to automatically control the acceleration and deceleration of the acceleration/deceleration mechanism to avoid the occurrence of insufficient speed/torque or excessive torque.

The improved acceleration/deceleration mechanism control method can automatically adjust the output gain of the amplifier unit according to the different load effects of the acceleration/deceleration mechanism, and the characteristics of the internal circuit of the amplifier unit, and increase/decrease. The speed and torque of the speed reduction mechanism to maintain the normal working state of the drive acceleration/deceleration mechanism.

The detailed description of the present invention is intended to be illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention. In the scope of patents.

1. . . Improved acceleration and deceleration control module

11. . . Amplifier unit

111. . . Operational Amplifier (OPA)

1111. . . Amplifier negative input

1112. . . Amplifier positive input

1113. . . Amplifier output

12. . . Pulse width modulation unit

13. . . Oscillation unit

131. . . Comparator

1311. . . Comparator negative input

1312. . . Comparator positive input

1313. . . Comparator output

14. . . Switch transistor

15. . . Feedback unit

2. . . Input source

3. . . Acceleration and deceleration apparatus

601~608. . . Method step

609~613. . . Method step

6021～6024. . . Method step

6041～6048. . . Method step

6081～6083. . . Method step

C5. . . Voltage stabilizing capacitor

Cf2. . . Filter capacitor

Cs1. . . Protection capacitor

Ct2. . . Charging capacitor

D1. . . Diode

Dri. . . Drive signal terminal

Q5. . . Output stage transistor

Q6. . . Discharge transistor

R1. . . Amplifying resistor

R2. . . Feedback resistor

R3. . . Amplifying resistor

R7. . . Output stage resistance

Rf2. . . Filter resistor

Rs1. . . Protection resistor

Rt1. . . Charging resistor

Rt2. . . Positive feedback resistor

Rt3. . . Second voltage dividing resistor

Rt4. . . Second voltage dividing resistor

Rt5. . . Buffer resistor

Rt6. . . Discharge resistor

RV1. . . First variable resistor

RV2. . . Second variable resistor

Vcc. . . Operating Voltage

Vct2. . . Capacitor terminal pressure

Vdri. . . Drive signal voltage

VFB. . . Feedback terminal

Vin. . . Signal input terminal

Vout. . . Signal output terminal

Vtri. . . Trigger signal terminal

The first figure is an architectural diagram of an improved acceleration and deceleration mechanism control module;

The second figure is a circuit structure diagram of the amplifier unit;

The third figure is a circuit structure diagram of the oscillating unit;

The fourth figure is a circuit structure diagram of the feedback unit;

Figure 5A and Figure 5B are flow charts of a control method for an improved acceleration/deceleration mechanism;

Figure 6 is a flow chart showing the detailed steps of step (602);

Figure 7 is a detailed flow chart of the steps (604); and

Figure 8 is a flow chart showing the detailed steps of step (608).

1. . . Improved acceleration and deceleration mechanism control module

2. . . Input source

3. . . Acceleration and deceleration apparatus

11. . . Amplifier unit

12. . . Pulse width modulation unit

13. . . Oscillation unit

14. . . Switch transistor

15. . . Feedback unit

Vcc. . . Operating Voltage

Claims (11)

An improved acceleration/deceleration mechanism control module is coupled to an input source for receiving and processing an input signal to drive an acceleration/deceleration mechanism, comprising: an amplifier unit connected to the input source to receive and amplify the input signal The amplifier unit further includes: an operational amplifier having an amplifier positive input terminal, an amplifier negative input terminal, and an amplifier output terminal, wherein the operational amplifier can amplify the input signal and output the amplification a second variable resistor connected to the positive input terminal of the amplifier, and adjusting a resistance value of the second variable resistor to adjust a low level of the amplified signal outputted by the output end of the amplifier; The diode is connected to the second variable resistor to prevent an influence on the value of the low level of the amplified signal when one of the external working voltages is fluttering; two amplification resistors, wherein the amplification resistor is Connect the negative input of the amplifier to the output of the amplifier, and the other amplification resistor is connected to the negative input of the amplifier, and the two amplification resistors are connected in series. The resistor system can assist the operational amplifier to perform amplification of the input signal; a first variable resistor is connected to the amplification resistor; and a voltage stabilization capacitor is connected to the first variable resistor and the two amplification resistors, the voltage stabilization capacitor Used to stabilize the high level of the amplified signal; An output stage transistor is connected to the output end of the amplifier as an output stage circuit of the amplifier unit; an output stage resistor is serially connected to the output stage transistor as a coupling resistance of the output stage transistor and the ground end; And a feedback resistor is connected to the negative input terminal of the amplifier; a pulse width modulation unit is connected to the amplifier unit to receive an amplified signal, and performs pulse width modulation of the amplified signal; a switching transistor is connected The pulse width modulation unit receives a modulation signal and outputs a driving signal to drive the acceleration/deceleration mechanism, wherein the switching transistor output can be adjusted by adjusting the resistance value of the first variable resistor. The driving signal power of the acceleration/deceleration mechanism is used to adjust the driving force of the acceleration/deceleration mechanism; an oscillating unit is connected to the amplifier unit and the pulse width modulation unit, and the oscillating unit can generate an oscillating wave signal to the pulse width modulation The unit adjusts the frequency of the modulation signal; and a feedback unit connects the feedback resistor and the acceleration/deceleration mechanism of the amplifier unit in a negative feedback manner, so The unit can transmit the driving signal outputted to the acceleration/deceleration mechanism to the negative input end of the amplifier through the feedback resistor; the feedback unit can feed the driving signal voltage outputted to the acceleration/deceleration mechanism to the amplifier unit, so When the acceleration/deceleration mechanism is subjected to different load effects and the rotation speed is weak/increased, the amplifier unit can follow the driving signal voltage fed back by the feedback unit. The value is automatically adjusted by the output gain to increase/decrease the speed of the acceleration/deceleration mechanism to maintain normal operation. The improved acceleration/deceleration mechanism control module of claim 1, wherein the oscillator unit comprises: a comparator having a comparator positive input terminal, a comparator negative input terminal, and a comparator output The comparator can perform a comparison between the positive input terminal of the comparator and the input signal of the comparator negative input terminal; a first voltage dividing resistor, one of the first voltage dividing resistors is connected to the comparator positive input And the other end is coupled to one of the applied operating voltages to generate a voltage dividing resistor terminal voltage; a second voltage dividing resistor, one of the second voltage dividing resistors is connected to the positive input terminal of the comparator, The other end is grounded to generate the voltage dividing resistor terminal voltage; a positive feedback resistor, one end of the positive feedback resistor is connected to the positive input terminal of the comparator, and the other end is connected to the comparator output End, the voltage of the comparator output is fed back to the positive input of the comparator; a charging capacitor is connected to the negative input of the comparator, and the applied voltage is generated above the second voltage dividing resistor to generate a voltage dividing resistor When the terminal is pressed, the charging battery The charging starts to be charged; a charging resistor is coupled to the comparator negative input terminal and the comparator output terminal, and the value of the charging resistor determines the charging capacitor charging time; a buffer resistor is connected to the output end of the comparator as a buffer interface between the comparator and the next stage circuit; a discharge resistor is connected to the charging capacitor, and the value of the discharging resistor Rt6 determines the discharging time of the charging capacitor Ct2; A discharge transistor is connected to the discharge resistor, and when the charge capacitor performs discharge, the discharge transistor is turned on to effectively shorten the discharge time of the charge capacitor. The improved acceleration/deceleration mechanism control module of claim 1, wherein the feedback unit comprises: a protection resistor connected to the acceleration/deceleration mechanism and the switching transistor to reduce switching of the transistor during the switching The switching loss of the derivative switch and the rise of the temperature of the transistor; a protection capacitor is connected to the protection resistor, and the protection capacitor and the protection resistor are used together to reduce the switching of the switching transistor during the switching Loss and rise in temperature of the transistor; a filter resistor is connected to the protection resistor and the protection capacitor to perform filtering action on the drive signal read by the protection resistor and the protection capacitor; and a filter capacitor is connected to the filter The resistor receives the driving signal and cooperates with the filter resistor to perform filtering of the driving signal, and then returns a driving signal voltage to the amplifier unit. The improved acceleration/deceleration mechanism control module according to claim 1, wherein the acceleration/deceleration mechanism is a motor. The improved acceleration/deceleration mechanism control module according to claim 1, wherein the switching transistor can be a double carrier junction transistor (BJT), a gate insulated bipolar transistor (IGBT), or A metal oxide semiconductor field effect transistor (MOSFET). The improved acceleration/deceleration mechanism control module according to claim 3, wherein the discharge transistor can be a double carrier junction transistor (BJT), a gate insulated bipolar transistor (IGBT), or A metal oxide semiconductor field effect transistor (MOSFET). The improved acceleration/deceleration mechanism control module of claim 2, wherein the two amplification resistors, the feedback resistor, the second variable resistor, and the operational amplifier form an inverse adder Circuit. An improved acceleration/deceleration mechanism control module control method can automatically adjust the signal gain of an improved acceleration/deceleration mechanism control module according to different load effects, and the method comprises the following steps: (1) an input source input one Input signal to an amplifier unit; (2) the amplifier unit receives and processes the input signal; (3) one of the amplifier unit output stage transistors outputs an amplified signal to a pulse width modulation unit; (4) an oscillation unit generates An oscillating wave signal to the pulse width modulation unit; (5) The pulse width modulation unit receives the amplified signal and the oscillating wave signal to perform pulse width modulation; (6) the pulse width modulation unit outputs a modulation signal to a switching transistor; (7) the switching transistor Outputting a driving signal to drive an acceleration/deceleration mechanism; (8) a feedback unit returns a driving signal voltage outputted to the acceleration/deceleration mechanism to the amplifier unit; (9) determining whether the acceleration/deceleration mechanism is weakened due to a load effect If yes, step (10) is performed; if not, step (11) is performed; (10) the amplifier unit automatically increases its output gain due to the feedback unit to reduce the driving signal voltage value, and performs step (3) (11) determining whether the acceleration/deceleration mechanism is increased in speed due to a load effect, and if so, executing step (12), and if not, performing step (13); (12) the amplifier unit automatically lowering its output gain due to the feedback unit, To increase the driving signal voltage value, and perform step (3); and (13) switch the transistor to continuously output the driving signal to drive the acceleration/deceleration mechanism. The method for controlling an improved acceleration/deceleration mechanism control module according to claim 9, wherein the step (2) comprises the following steps: (21) a signal input terminal receives the input signal; (22) an operation The amplifier is matched with two amplification resistors for performing signal amplification; (23) adjusting a resistance value of a second variable resistor to determine a low level of the amplification signal; and (24) the operational amplifier outputting an amplification signal to the output stage transistor . The method for controlling an improved acceleration/deceleration mechanism control module according to claim 9, wherein the step (4) comprises the following steps: (41) applying an operating voltage to a first voltage dividing resistor; Generating a voltage dividing resistor terminal voltage; (43) a charging capacitor performs charging and generates a capacitor terminal voltage; (44) determining whether the capacitor terminal voltage is equal to the voltage dividing resistor terminal voltage, and if yes, performing step (45), If not, proceed to step (43); (45) a discharge transistor is turned on to accelerate the discharge of the charge capacitor; (46) the charge capacitor performs discharge and generates a capacitor terminal pressure; (47) determining whether the capacitor terminal voltage is equal to a negative value of the voltage divider resistor terminal voltage, if yes, performing step (48), if not, performing step (46); and (48) a comparator outputting the periodic oscillation. Wave signal to the pulse width modulation unit. The method for controlling an improved acceleration/deceleration mechanism control module according to claim 9, wherein the step (8) comprises the following steps: (81) transmitting the acceleration/deceleration mechanism through a protection resistor and a protection capacitor The driving signal is read out; (82) filtering is performed on the driving signal through a filter resistor and a filter capacitor; and (83) the driving signal voltage is fed back to the amplifier unit through a feedback resistor.