motor

Pulse width modulation is a great method of controlling the amount of power delivered to a dc motor without dissipating any wasted power.this tutorial demonstrates signal control through atmega32 using timer0 in fast pwm mode.voltage applied(Vout) on  dc motor depends on duty cycle so by increasing(from 1 to 255) or dexreasing(255 to 1) duty cycle control over motor speed can be acheived.drived relation between Vout and duty cycle gives the fo

speed of motor depends on voltage. using this property we can vary the speed of dc motor. although voltage is fixed but variation can  be possible by giving duty cycle pulse i.e wider the on period of pulse,higher the speed we'll get. we can provide different duty cycle pulses using software.