Advanced Qualification · A-004 Power supplies · A-004-004-008
Dans une source d'alimentation stabilisée, quatre diodes forment un pont agissant :
- Ade redresseur
- Bd'égalisateur aux bornes du transformateur
- Cd'adaptateur entre le secondaire du transformateur d'alimentation et le filtre
- Dde réseau d'accord
Correct answer: A — de redresseur. Question tirée de la banque officielle d'ISDE.
Why
Four diodes arranged in a bridge convert alternating current, which flows back and forth, into direct current that flows in only one direction, which is the exact job of a rectifier. 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