MCQ Practice Question

A high rate of rise of forward voltage across an OFF SCR may cause unwanted turn-on due to?

  • AJunction capacitance current
  • BHolding current becoming zero
  • CLoad resistance becoming infinite
  • DGate resistance alone
Report an error
Correct Answer: A. Junction capacitance current
Explanation: Internal junction capacitances carry i=C dv/dt; excessive dv/dt can create sufficient internal current to trigger the SCR.
Reference: Standard power electronics: scr protection
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