Thyristor & Power Control Circuits Unit 7 – TRIAC AC Power Control
UNIT 7 – TRIAC AC POWER CONTROL
UNIT OBJECTIVE
At the completion of this unit, you will be able to demonstrate ac power control by using typical
triac control circuits.
UNIT FUNDAMENTALS
This is a half-wave triac circuit. The triac can be turned on only when Vac is positive.
By adding CR1 to the circuit, it becomes a full-wave circuit. Since the triac can conduct on the
positive and negative half-cycles, it is bidirectional.
NEW TERMS AND WORDS
None.