Let of a thyristor Vc1, Vc2, Vc3 are forward break over voltage for gate current Ig1, Ig2, Ig3 respectively. Then________________?
Correct answer: B. Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3.
- A. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3.
- B. Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3.
- C. Vc1 = Vc2 = Vc3 any value of Ig.
- D. Vc1 > Vc2 > Vc3 when Ig1 ≥ Ig2 &Atil
Explanation
Increasing gate current assists thyristor turn-on and reduces its forward breakover voltage. Thus, if Ig1 < Ig2 < Ig3, then Vc1 > Vc2 > Vc3.
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