A chopper has input voltage of 290 and the load resistance as 50, the average load current as 50A. If the non-conducting time of thyristor chopper is 120 Usec. Calculate the pulse width of output voltage in U sec. In case pulse width is 1/3rd for constant frequency operation, find new output voltage. Duty Cycle pulse width of output voltage in H sec new output voltage

An ideal boost converter is required to have a constant output voltage of 12 V at 24 W load.The input voltage varies from 2.7 to 4.5 V (as in a battery cell). Select a switching frequency of100 kHz. The value of the inductance in the boost converter is 2.2 uH. Determine:(a) The range of duty cycle that the converter will operate with (hint: mode?), and(b) The minimum value of the output capacitance such that the pk-to-pk load voltage rippleis less than 2%.