Control circuit of direct current motor and implementation method of control circuit

Abstract

The invention provides a control circuit and method of a direct current motor, the circuit comprises a direct current power supply module, a processing module, a boost module and a driving control circuit, the direct current power supply module is connected with a power supply and outputs a direct current power supply signal to the processing module and the boost module; the boosting module converts a direct-current power supply signal into a boosting signal and outputs the boosting signal to the driving control circuit, and the processing module is used for comparing and processing a control signal input to the motor by the MCU and outputting a driving signal to the driving control circuit according to the control signal; the driving control circuit comprises two groups of half-bridge driving integrated chips and four MOS (Metal Oxide Semiconductor) tubes, and each group of half-bridge driving integrated chips controls the two MOS tubes to be switched on or switched off. According to the invention, frequent stepless rapid starting, braking and reverse rotation can be solved, various different special operation requirements of an automatic system in the production process can be met, and the stable, efficient, stable and accurate control of rapid starting, braking and reverse rotation of the direct current motor in the starting and operation process of the motor is ensured.

Description

technical field [0001] The invention relates to the technical field of electronics and information, in particular to a control circuit of a DC motor and an implementation method using the circuit. Background technique [0002] With the development of science and technology, the application range of motors is getting wider and wider. At present, motors are classified into DC motors and AC motors according to their working power sources. The DC motor has fast response, large starting torque, and can provide rated torque from zero speed to rated speed. [0003] Due to the increasingly high requirements for quiet operation of DC motors in the market, DC motors are also widely used in various occasions. In the DC motor drive control circuit, the voltage required by the motor is often unstable, and the motor voltage instability will cause The number of turns of the motor is uncertain, which is not conducive to the precise control of the DC motor. [0004] At present, the existin...

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Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a DC motor control circuit and its method, which can solve the problems in the prior art of voltage instability, cumbersome and complex calculations, and easy damage to the motor. , so that the motor can run stably and precisely

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