Advanced Qualification · A-004 Power supplies · A-004-003-003
Quel composant particulier est utilisé pour la tension de référence stable dans un régulateur de tension linéaire?
- AUne diode à jonction
- BUne diode Zener
- CUn redresseur commandé au silicium ("SCR")
- DUne diode varactor
Correct answer: B — Une diode Zener. Question tirée de la banque officielle d'ISDE.
Why
A Zener diode is the right choice because it is designed to maintain a steady voltage across its terminals even when the current flowing through it changes, making it perfect as a stable reference point inside a linear voltage regulator. 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