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Dc motor speed PWM control system's main features include: dc motor speed regulator of acceleration, deceleration and the forward and inversion, and can adjust the speed of the motor, can also convenient to read the size of the motor speed, can easily realize the intelligent control of the machine. In the meantime, it also includes direct clearance, start (number), pause and continuous function of dc motor governor.
The dc motor governor system consists of the following circuit modules: oscillator and clock circuit: this circuit is mainly composed of 80C51 single chip microcomputer and some capacitor and crystal vibration.
Design input part: this module is mainly realized by using the disconnected independent keyboard.
Design control part: mainly consists of the external interrupt extension circuit of 80C51 single chip microcomputer.
Design display part: including liquid crystal display part and LED digital display part. The liquid crystal display part is composed of 1602LCD liquid crystal display module; The LED digital display section consists of seven digital display tubes.
Dc motor governor PWM control realization part: mainly consists of some diode, motor and L298 dc motor governor drive module.
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