ZK-220PWM DC speed regulatorDetailed product description：

ZK-220PWM Pulse Width Regulator
PWM (Pulse Width Modulation) DC servo system is mainly used for precise speed control of DC brushed motors; It mainly consists of two parts, one is the power drive device, and the other is the servo speed control circuit; At present, power drive devices mainly use MOSFET tubes, IGBT modules, and IPM modules; Servo speed control circuits are usually implemented using the principle of speed and current cascade dual closed-loop speed control;
At present, various motors and their matched PWM DC servo drive systems have been widely used in CNC machine tools, precision machine tools, heavy-duty machine tool feed, robot drive devices, precision speed control, and fast tracking high-precision weapon servo systems in China.

ZK-220PWM DC speed controller output current:
ZK-20D300A：
Continuous output current 20A
Main power module current 50A
ZK-35D300A：
Continuous output current of 35A
Main power module current 75A
ZK-50D300A：
Continuous output current 50A
Main power module current 100A
ZK-20D60A: (Operating voltage: 18-60V DC or 12-45V AC)
Continuous output current 20A
Main power module current 30A
Speed range: 1:10000
Speed regulation accuracy: 1%
Feedback method: speedometer
Input voltage: 220VAC
Output voltage: 0-300VDC