Whereas the SCR is a "unidirectional" device, a Triac is a ______________ device.
In general, triacs have _________ (higher/lower) current ratings than SCRs.
Name one common application for a Triac.
-Domestic range hot plate control
-Smaler Motor Speed Control
-Applications that do not need high current
In some (but not all) Triacs, how is the gate terminal readily identified?
Smaller than the other two leads
The voltage drop across a Triac, when conducting rated current, would be closest to:
a. 0.7 V
b. 1-2 V
c. 5 V
d 12 V
b. 1-2 V
Can a Triac be triggered into conduction without a gate signal? Explain your answer.
Yes. By raising the voltage across the main terminals high enough (breakover), or by a rapid rise in voltage across the main terminal (dv/dt)
What is meant by the Triac "holding" current?
Current required to keep the Triac on without the gate signal
The action of a Triac could be likened to two _____________ connected back-to-back.
Triacs are available in rms current rating up to a maximum of about _________ A.