Advanced Qualification · A-004 Power supplies · A-004-001-001
For the same transformer secondary voltage, which rectifier has the highest average output voltage?
- A Half-wave
- B Quarter-wave
- C Full-wave centre-tap
- D Bridge
Correct answer: D — Bridge. From the official ISED question bank, verified word for word.
Why
A bridge rectifier uses four diodes to flip both halves of the incoming alternating current into a single direction, capturing nearly the entire voltage from the transformer without needing a special centre-tapped winding. The full explanation — and one for every question — is in Pro.
Practise this section
Power supplies: rectifiers, filtering, regulation, switching supplies and their failure modes.