Control circuit for automatically controlling high torque

Abstract

The invention discloses a control circuit for automatically controlling high torque. The control circuit for automatically controlling high torque comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a diode, an audion, a light-emitting diode, a phototriode, a NAND gate schmitt trigger, a phase-locked loop chip, a step down switch voltage-stabilizing chip and a motor. The control circuit for automatically controlling the high torque utilizes cooperation between an apertured disc on a motor shaft and a photo interrupter to obtain feedback impulses in proportion to rotating speed, due to difference between the feedback impulses and input frequency, a variable voltage is generated to be sent to the processing chip, then the chip is made to produce voltage signals with the changed pulse width to control the motor, and therefore the purpose of automatically controlling the rotating speed and the torque of the motor is achieved.

Description

technical field [0001] The invention relates to a control circuit, in particular to a control circuit for automatically controlling high torque. Background technique [0002] With the development of industry to today's society, motors have been widely used in various fields. Its main function is to generate driving torque. As a power source for electrical appliances or various machinery, its main function is to convert electrical energy into mechanical energy. In the case of production, we need the motor to have a lower speed but generate a higher torque to complete the job, but if we use manual control of the speed and torque, it will greatly waste labor and reduce work efficiency. SUMMARY OF THE INVENTION [0003] An object of the present invention is to provide a control circuit for automatically controlling high torque in order to solve the above problems. [0004] The present invention realizes above-mentioned purpose through following technical scheme: [0005] A c...

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Problems solved by technology

[0002] With the development of industry and today's society, motors have been widely used in various fields. Its main function is to generate driving torque. As a power source for electrical appliances or various machines, its main function is to convert electrical energy into mechanical energy. In many industries In the case of production, we need the motor to have a lower speed but generate a higher torque to complete the job, but if the speed and torque are manually controlled, it will greatly waste labor and reduce work efficiency

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