Inverter (PE)

The Inverter is mainly used in

• Power supplies

• Field Circuit of DC motor

• Multilevel configuration

• A and C

In Half bridge inverter output voltage equals to

• Vo = Vs

• Vo = Vs/2

• Vo = 2Vs

• Vo = Vs/3

In full bridge inverter output voltage equals to

• Vo = Vs

• Vo = Vs/2

• Vo = 2Vs

• Vo = Vs/3

1. Inverter converts:

• AC to DC

• DC to AC

• DC to DC

• AC to AC

The voltage in a single-phase full bridge inverter varies between

• Vs and 0

• Vs/2 and 0

• Vs/2 and –Vs/2

• Vs and –Vs

The output voltage of a single-phase half bridge inverter on R load is ideally

• a sine wave

• constant dc

• a triangular wave

• none of above

The output current of a single-phase half bridge inverter on RL load is ideally

• a sine wave

• a square wave

• constant dc

• none of above

Single-phase full bridge inverters require

• 4 SCRs and 2 diodes

• 4 SCRs and 4 diodes

• 2 SCRs and 4 diodes

• 2 SCRs and 2 diodes

A single-phase half bridge inverter is connected to a 230 V dc source which is feeding a R load of 20 Ω. Determine the current through each SCR inverter switch.

• 11.5 A

• 5.75 A

• 23 A

• none of the mentioned

In the below circuit, if Vs/2 = 30 V. Find, the rms AC voltage that would be ideally obtained.

• 50 V

• 100 V

• 0.707 x 30 V

• 0.707 x 100 V