Direct current (DC) motors have been used in variable speed drives for a long time. Pulse width modulation (PWM) is a method for binary signals generation, which has 2 signal periods (high and low). The width (W) of each pulse varies between 0 and the period (T). The main principle is control of power by varying the duty cycle. Here the conduction time to the load is controlled.
8051/pic /avr/microcontroller,power supply,serial comm,motor
BE and B.Tech Engineering Students, Diploma Students
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