Advanced Qualification · A-004 Power supplies · A-004-002-003
The advantage of the capacitor input filter over the choke input filter is:
- Aimproved voltage regulation
- Blower peak rectifier currents
- Ca higher terminal voltage output
- Dbetter filtering action or smaller ripple voltage
Correct answer: C — a higher terminal voltage output. From the official ISED question bank, verified word for word.
Why
A capacitor input filter charges the capacitor to the peak of the incoming alternating current waveform, which is higher than the average value that a choke input filter produces. The full explanation — and one for every question — is in Pro.
Practise this section
Power supplies is section A-004 of the Advanced exam: Power supplies: rectifiers, filtering, regulation, switching supplies and their failure modes.
Drill A-004 — free, no account