Power Electronics
A single phase full bridge inverter can operate in load commutation mode in case load consists of

 RLC overdamped.
 RLC critically damped.
 RL.
  RLC underdamped.

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Power Electronics
SCR will be turned off when anode current is

  both (A) and (B).
 < latching current but greater than holding current and gate signal is present.
  < latching current but greater than holding current and gate signal is 0.
 less than holding current.

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Power Electronics
In reverse blocking mode of a thyristor

 junction J2 is in reverse bias and J1, J3 is in forward bias.
 junction J3 is in forward bias and J1, J2 in reverse bias.
 junction J1 and J2 is in forward bias and J3 is in reverse bias.
  junction J1, J3 is in reverse bias and J2 is in forward bias.

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