AN320

Physical operation

Doc ID 5649 Rev 3

9/13

2

Physical operation

A Trisil consists of two thyristors connected back to back. It will suffice to explain the

operation of one thyristor. The other operates in the same way if the voltage across the

component is reversed.

Figure 12.

Operation in the blocked mode

N+ +

1

N+ +

1

J 2

N 2

J 1

J 3

()

Leakage current

B

A

V

C

I

N

N