I have a 24 volt electric motor powered by two 12 volt batteries and the speed is controlled by a Pulse Width Modulation (PWM) circuit with a 0 - 10Kohm potentiometer.
The controller has stopped working. It shows no voltage across the output terminals. It does show about 23 volts between one output terminal and the input terminal of the opposite polarity. How do you troubleshoot a PWM circuit?
I'm also considering replacing the PWM circuit and found one on eBay that is rated as 12 - 40 V, 30 amp and 360 watts. According to the manufacturer, my motor draws between 2 and 24 amps. I am unfamiliar with the voltage / current relationship for a PWM controlling a DC motor. Can anyone help me with determining if the 360 watt rating is adequate for this application?
The controller has stopped working. It shows no voltage across the output terminals. It does show about 23 volts between one output terminal and the input terminal of the opposite polarity. How do you troubleshoot a PWM circuit?
I'm also considering replacing the PWM circuit and found one on eBay that is rated as 12 - 40 V, 30 amp and 360 watts. According to the manufacturer, my motor draws between 2 and 24 amps. I am unfamiliar with the voltage / current relationship for a PWM controlling a DC motor. Can anyone help me with determining if the 360 watt rating is adequate for this application?