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In the single-phase modified McMurray full-bridge inverter, for commutating the main SCRs T1 and T2

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In the single-phase modified McMurray full-bridge inverter, for commutating the main SCRs T1 and T2

(a) The capacitor is charged

(b) TA1 is triggered

(c) The commutation circuit is switched on

(d) TA1 and TA2 are triggered

This question was posed to me in an interview.

Question is taken from Force-Commutated Inverters in portion Inverters of Power Electronics

1 Answer

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by (45.1k points)
The correct choice is (d) TA1 and TA2 are triggered

For explanation I would say: TA1 and TA2 are triggered together, which then turn-off the main SCRs. TA1 and TA2 are the auxiliary SCRs in the commutation circuit of the McMurray inverter.

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