PWM(Pulse Width Modulation) Circuit(DC Motors/Lights/LED's)

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This video should give you a detailed understanding of how a PWM circuit works, as well as demonstrations using an oscilloscope, small 12v DC motor, and incandescent bulb. This circuit is made using a Quad Op Amp(lm324), mosfet, and a few other readily available components. You can also use (2) Dual Op Amps.

The link to the schematic is here:

http://www.pcsilencioso.com/cpemma/pwm.html

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