PSTT PC / PSTT SC / PSTT ZC

POWERSEM GmbH, Walpersdorfer Str. 53

91126 D- Schwabach

Phone: 09122 - 9764-0 Fax.: 09122 - 9764-20

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 2006 POWERSEM reserves the right to change limits, test conditions and dimensions

The thyristor is triggered from a current source with a maximum voltage of 22V. This

allows for twisted gate leads of up to 1m while maintaining a high rate of rise of the gate

current.

Note that the envelope of the voltage across the thyristor to be triggered can have any

desired shape provided the rms value is below Vm and the peak value does not exceed

Vp.

Both the PSTT SC and PSTT ZC have one control input only. This means that the

thyristor with a positive anode voltage will be triggered when a control signal is present.

The connection diagrams below show the typical application of the Active Trigger in

mains operated systems using thyristors with current ratings from a few Amps up to

several thousand Amps.

CONNECTING DIAGRAMS

+Vs

A2

G2

K2

G1

K1

+

+

-

-

12mA

sink

Logic

Output

PSTT PC

+Vs

K1

G1

G2

K2

+

-

12mA

sink

Logic

Output

PSTT SC

PSTT ZC