Diacs are bidirectional diodes that switch AC voltages and trigger silicon controlled rectifiers (SCRs) and triacs. SCRs are four-layer (PNPN) thyristors with an input terminal (gate), an output ...
WEEK 3: Thyristor: basic characteristics, Shockley diode and three-terminal thyristor, related power thyristor, diac and triac, unijunction transistor and trigger thyristor, field-controlled thyristor ...