(A) A parallel combination of controllable switch and a diode is used ()
(B) A parallel combination of controllable switch and capacitor is used (X)
(C) A series combination of controllable switch and a diode is used (X)
(D) A series combination of controllable switch and a capacitor is used (X)
Answers: For bidirectional operation of converters A parallel combination of controllable switch and a diode is used.