In a full wave bridge rectifier with a capacitor filter, assume a diode has opened. You expect to see
A)an increase in the ripple frequency
B)an increase in the ripple voltage
C)both A and B
D)none of the above

Question

Quizplus · Accepted Answer

In a full wave bridge rectifier with a capacitor filter, if a diode opens, the rectifier effectively becomes a half-wave rectifier for part of the cycle. This results in an increase in the ripple voltage because the capacitor discharges for a longer period between peaks, but the ripple frequency remains the same as it is still determined by the frequency of the input AC signal.

In a Full Wave Bridge Rectifier with a Capacitor Filter