PSTT PC / PSTT SC / PSTT ZC
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
PSTT PC
A2
+Vs
Logic
Output
PSTT SC
PSTT ZC
K1
G1
+
-
+
+Vs
G2
K2
12mA
sink
G2
-
12mA
sink
Logic
Output
+
G1
K1
-
K2
POWERSEM GmbH, Walpersdorfer Str. 53
2006 POWERSEM reserves the right to change limits, test conditions and dimensions
91126 D- Schwabach
3/3
Phone: 09122 - 9764-0 Fax.: 09122 - 9764-20
POWERSEM [ POWERSEM GMBH ]
