Increasing the firing angle in an SCR control circuit
A)increases the SCR current
B)increases the holding current
C)increases the output current
D)none of the above

Question

Quizplus · Accepted Answer

Increasing the firing angle in an SCR control circuit actually decreases the output current by delaying the point at which the SCR starts conducting within each cycle of the AC supply. It does not increase the SCR current, holding current, or output current directly. The holding current is a characteristic of the SCR and is not affected by the firing angle.

Increasing the Firing Angle in an SCR Control Circuit