5V 12V 24V 150W high-power pwm dc motor speed controller signal generator driver module speed regulator with stepless variable rotary switch Description: ZK-MG is a High-power PWM DC motor governor.It can adjusts the motor speed by adjusting the duty cycle of the output signal. It can also adjust the output frequency to match the frequency of the output signal to the motor frequency, allowing the motor to work more stably. Specification: Size: 79 x 43 x 40 mm(L*W*H) Working voltage: DC 5V~30V Rated current: 5A Maximum current: 15A Maximum power: 150W Working frequency: 1KHz~99KHz Frequency accuracy: 1% frequency resolution: 1KHz Working cycle: 0-100% Working cycle Resolution: 1% Working temperature: -40-80℃ Working humidity: 0%-95%RH High-quality material: High-quality circuit board Features: Support ON/OFF output Soft start function Support set duty cycle Support set frequency Adjustable digital encoder Instrument case Support reverse connection protection Support parameter memory function Potentiometer introduction: Long press means need keep press for more than 3second. Default display duty cycle. Normal display mode: Short press potentiometer:Turn ON/OFF output signal. Long press potentiometer:Enter parameter set mode. Rotate potentiometer clockwise:Increase duty cycle value. Rotate potentiometer counterclockwise:Decrease duty cycle value.