Q20 (a) A step down chopper circuit issupplied with power from an ideal voltage source of terminalvoltage 100 V. The load voltage waveform consist of rectangularpulses across a 1kΩ resistor of duration 1ms in one cycle of 2.5ms. Calculate the average value.rms value & ripple factor
  (b) Explain a 1-ф fullwave controlled semi converter with freewheel diode for RLE load.(12 Mark)
