Hi,
I wish to build a DC motor controller. I have a window motor from my father's old chevrolet car. I found online a circuit that generate 12 volts duty cycle square wave to transistor base.
First question: when I generate the square wave, only the duty cycle is responsible for the RMS voltage?
Second question: I wish to add two led diodes for the polarity of the motor. How can I do it properly?
Last question: I want to add a on off toggle switch. The proper way to turn off the circuit is to first take pin 4 to the ground, and than turn off the power suppley?
Thanks!
I wish to build a DC motor controller. I have a window motor from my father's old chevrolet car. I found online a circuit that generate 12 volts duty cycle square wave to transistor base.
First question: when I generate the square wave, only the duty cycle is responsible for the RMS voltage?
Second question: I wish to add two led diodes for the polarity of the motor. How can I do it properly?
Last question: I want to add a on off toggle switch. The proper way to turn off the circuit is to first take pin 4 to the ground, and than turn off the power suppley?
Thanks!
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