If the duty cycle is 50%, then it will remain on for exact half the duration of the total time period of the digital pulse. % of Duty cycle = T on /T (total time) x 100 What is duty cycle? Duty cycle is defined by the percentage of high voltage duration in a complete digital pulse. In PWM technique, we create digital pulses with unequal amount of on and off state to get required intermediate voltage values. Usually, digital pulses have same on and off time period, but in some situations we need the digital pulse to have more/less on time/offtime. Pulse Width Modulation (PWM) is a comparatively recent power switching technique for providing intermediate amounts of electrical power between fully on and fully off levels.
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