Advanced Qualification · A-004 Power supplies · A-004-002-001
La valeur nominale des bobines de filtrage est déterminée en fonction :
- Ade la tension de claquage (rupture)
- Bde l'inductance et du courant supporté par la bobine
- Cde la réactance à 1 000 Hz
- Dde la perte de puissance
Correct answer: B — de l'inductance et du courant supporté par la bobine. Question tirée de la banque officielle d'ISDE.
Why
Filter chokes smooth out power supply ripple by storing energy in a magnetic field, so they must be rated for how much inductance they provide and how much current they can carry without overheating or saturating. 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