Thyristors
SCRs, TRIACs and DIACs — latching switches for controlling high-power AC.
Intermediate
Four-layer (PNPN) devices that latch on once triggered and stay on until the current falls below a holding level.
Sub-topics (2)
Silicon Controlled Rectifier
A gate pulse turns an SCR on; it stays on until the anode current drops to near zero.
Intermediate♥ 0🔖 0💬 0
TRIAC and DIAC
A TRIAC conducts in both directions for AC power control; a DIAC triggers it symmetrically.
Intermediate♥ 0🔖 0💬 0
Spotted a mistake or want to add detail? Suggest an improvement — Content Contributors' edits are reviewed by editors before they go live.
Discussion (0)
Sign in or join free to ask questions and discuss this topic.