a) A step-up chopper has input voltage of $220\text{V}$ and output vo…
Previous year question for Power Electronics.
Question
a) A step-up chopper has input voltage of $220\text{V}$ and output voltage of $660\text{V}$. If the conducting time of Thyristor-chopper is $100\;\mu\text{s}$, compute the pulse width of output voltage. In case output pulse width is halved for constant frequency operation, find the average value of new output voltage. (10)
b) Explain the principle of operation of step-up and step-down chopper. (10)
- Year: 2018
- Subject: Power Electronics