Which of the following statements are true(a) Latching Current is related to turn-on of the thyristor(b) Holding Current is related to turn-on of the thyristor(c) Latching Current is related to turn-off of the thyristor(d) Holding Current is related to turn-off of the thyristorSelect one:a. b, cb. a, b, c, dc. a, dd. a, c
Question
Which of the following statements are true(a) Latching Current is related to turn-on of the thyristor(b) Holding Current is related to turn-on of the thyristor(c) Latching Current is related to turn-off of the thyristor(d) Holding Current is related to turn-off of the thyristorSelect one:a. b, cb. a, b, c, dc. a, dd. a, c
Solution
The correct answer is c. a, d.
Explanation:
(a) Latching Current is related to turn-on of the thyristor: This is true. Latching current is the minimum current that must pass through the thyristor immediately after it is turned on to maintain it in the on state.
(b) Holding Current is related to turn-on of the thyristor: This is false. Holding current is the minimum current that must pass through the thyristor to keep it in the on state, but it is not related to the turn-on process.
(c) Latching Current is related to turn-off of the thyristor: This is false. Latching current is related to the turn-on process, not the turn-off process.
(d) Holding Current is related to turn-off of the thyristor: This is true. If the current passing through the thyristor drops below the holding current, the thyristor will turn off.
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