A PWM inverter has an output voltage of 294 Volts. What is average voltage of a pulse which is on for 3 micro-seconds and off for 11 micro-seconds?

The average voltage of a pulse in a PWM (Pulse Width Modulation) inverter can be calculated using the duty cycle of the pulse. The duty cycle is the ratio of the time the signal is on to the total time of the signal (on time + off time).

1. First, calculate the total time of the signal, which is the sum of the on time and the off time. In this case, the on time is 3 microseconds and the off time is 11 microseconds, so the total time is 3 + 11 = 14 microseconds.

2. Next, calculate the duty cycle, which is the on time divided by the total time. In this case, the duty cycle is 3/14 = 0.2143 (or 21.43%).

3. Finally, calculate the average voltage of the pulse, which is the duty cycle times the output voltage. In this case, the output voltage is 294 Volts, so the average voltage is 0.2143 * 294 = 63 Volts.

So, the average voltage of a pulse which is on for 3 microseconds and off for 11 microseconds in a PWM inverter with an output voltage of 294 Volts is approximately 63 Volts.