The electronic device that can drive and control the speed of DC brushed motor is called DC governor.
Dc governor is divided into: silicon controlled chopper type (SCR) and pulse width modulation type (PWM)
1, silicon controlled DC governor
Advantages: low cost, easy to achieve high voltage, high power, good anti-interference performance, good impact resistance, the use of the environment is not high requirements.
Disadvantages: the precision of speed regulation is not high, large noise
Scope of application: Suitable for starting, running torque large continuous operation of mechanical equipment, such as machine tools, drilling machines, grinding machines, continuous operation of production equipment and equipment with low precision requirements.
2. What is pulse Width modulation (PWM)?
Advantages: high speed regulation precision, motor running noise, high efficiency, wide speed regulation range, motor running spark is small (can extend the service life of the motor).
Disadvantages: poor impact resistance, large heat, large interference, large volume, not suitable for high power to use the environment requirements.