Advanced Qualification · A-002 Advanced components and circuits · A-002-005-005
Comment décrit-on la structure du redresseur commandé au silicium ("SCR")?
- APPNN
- BPNPN
- CNPPN
- DPNNP
Correct answer: B — PNPN. Question tirée de la banque officielle d'ISDE.
Why
A silicon controlled rectifier, or SCR, is built from four layers of semiconductor material arranged in an alternating pattern of positive and negative types, specifically starting with a positive layer, then negative, then positive, and finally negative again. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
Drill A-002 — free, no account