1. holding current
  2. freewheeling current
  3. gate current
  4. latching current
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1 Answers

Option 1 : holding current

Latching Current: It is the minimum anode current required to maintain the thyristor in the ON state immediately after a thyristor has been turned on and the gate signal has been removed.

Holding Current: It is the minimum anode current to maintain the thyristor in the on-state.

Latching current is always greater than holding current.

The I-V characteristics of the thyristor are shown below.

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