Answer Posted / arun cs

U can drive a DC Motor with the help of a micor controller
(eg:PIC16f877).With the help of
PWM(Pulse Width Modulated Signal)from an Micro
controller.The PWM signal will fed to a H-Bridge(Consist of
4 Darling Pair transistor pairs) which will drive the DC
motor.The frequency of PWM is directly proprtional to speed

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