D6 Triac

Question 1

what does Triac stand for

Answer 1

bi-directional triode thyristor

Question 2

Define: breakover voltage for a Triac. VF or VR

Answer 2

if the voltage in either direction were increased to a sufficient magnitude the Triac would turn on without a gate signal

Question 3

SCR is a uni-directional switch and the Triac is a

Answer 3

bi-directional switch

Question 4

when a Triac is conducting or on the voltage drop across it is normally

Answer 4

1-2V

Question 5

why does the term reverse breakdown voltage not apply to Triacs

Answer 5

because they are design to operate in both directions.

Question 6

Triac resistor control limits the firing anlge to

Answer 6

0 to 90 degrees

Question 7

Triac resistor-capacitor control give full

Answer 7

0 to 180 phase shifting

Question 8

List the terminals of a Triac

Answer 8

MT1
MT2
gate

Question 9

Which terminal on a Triac is the reference terminal

Answer 9

MT1

Question 10

Which terminal is normally connected to the case or metal mounting part

Answer 10

MT2