GATE EE
Power Electronics
Ac Voltage Controllers
Previous Years Questions

## Marks 1

In the single phase voltage controller circuit shown in the figure, for what range of triggering angle $$\left( \alpha \right)$$, the output voltage ...
Thysistor circuits that directly convert poly phase $$ac$$ voltage from one frequency to another frequency are called _______.

## Marks 2

A single-phase $$SCR$$ based $$ac$$ regulator is feeding power to a load consisting of $$5\,\,\Omega$$ resistance and $$16$$ $$mH$$ inductance. The i...
The triac circuit shown in figure controls the $$ac$$ output power to the resistive load. The peak power dissipation in the load is ...

## Marks 5

A single phase voltage source of magnitude $${V_s}$$ and frequency $$\omega \,\,\left( {rad\,/\,\sec } \right)$$ is connected to an inductance $$L$$ t...
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