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PSTTSC

Description
Active Trigger Units for Thyristors
File Size186KB,3 Pages
ManufacturerPowersem GmbH
Websitehttps://www.powersem.net/index.php
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PSTTSC Overview

Active Trigger Units for Thyristors

PSTT PC / PSTT SC / PSTT ZC
Active Trigger Units for Thyristors
The Active Trigger is an economic replacement of
pulse transformers including all associated circuitry in
phase controlled thyristor equipment. Due to the small
control current it becomes the ideal link between any
size of thyristor and the control intelligence. Each
Active Trigger can trigger two thyristors and is
intended for mains voltages from 115V to 690Vrms.
Its operation is based on an optically activated current
source connected between anode and gate of the
thyristor to be triggered. Thus a small electrically
isolated control current initiates a large gate current
without the necessity of a gate drive power supply.
Three different application specific types are
available.
PSTT PC
- controlled rectifiers, ac controllers, dc motor control, all other applications
PSTT SC
- economic low cost ac controllers
PSTT ZC
- zero crossing switching – heating, welding, power factor correction
PSTT PC
Top view in mm
PSTT SC
A2
G2
K2
Top view in mm
K2
G2
PSTT ZC
G1
K1
G1
K1
Height 23 mm
PCB hole size 0.8 mm
Height 19 mm
PCB hole size 0.8 mm
ABSOLUTE MAXIMUM RATINGS
Type
PSTT PC/12
PSTT PC/20
PSTT SC/12
PSTT SC/20
PSTT ZC/12
PSTT ZC/20
Vp
1200
2000
Peak voltage-positive and negative
Nominal mains voltage
Vm
400
690
Continuous DC voltage
V=
400
690
Turn-on delay for gate current >1A
tgd
5
5
Input-output isolation
Vi
5300Vrms 60Hz 1min VDE0884
Input-output transient immunity
(dv/dt)c
5000
Device transient immunity
(dv/dt)d
2000
Ambient temperature range
Ta
-25 to +85
External gate cathode short circuit during operation can be destructive
Parameter
Symbol
Unit
V
Vrms
Vdc
µs
V/µs
V/µs
°C
POWERSEM GmbH, Walpersdorfer Str. 53
2006 POWERSEM reserves the right to change limits, test conditions and dimensions
91126 D- Schwabach
1/3
Phone: 09122 - 9764-0 Fax.: 09122 - 9764-20

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PSTTSC PSTTPC PSTTZC
Description Active Trigger Units for Thyristors Active Trigger Units for Thyristors Active Trigger Units for Thyristors
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