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DMA12 Datasheet(PDF) 2 Page - Microsemi Corporation

Part No. DMA12
Description  IGBTVSTM AC LINE TRANSIENT VOLTAGE SUPPRESSOR
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
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DMA12 Datasheet(HTML) 2 Page - Microsemi Corporation

   
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Application Notes for IGBTVS
TM
Microsemi’s IGBTVSTM protector is intended for transients produced during load switching with a duty cycle not
to exceed .01%. For protecting against transients produced when IGBTs are applied as ac power switches and
over current protectors. Stored energy in the line and load produces damaging transient voltages during power
down or fault interrupt. Microsemi’s IGBTVSTM transient suppressor protects from nanosecond rise transients
with surge currents to 200A, 1.5/50µs. Typical application on a 3
power line is illustrated below.
Each control module contains IGBTs,
gate drive and two IGBTVS
TM as
illustrated by #2 above
3. COMPOSITE 3 PHASE PROTECTION
1
2
AC IN
LINE R & L
LINE R & L
LINE R & L
3
LOAD
2. DETAILS OF SINGLE PHASE PROTECTION
GATE DRIVE
IGBT
AC
LINE
IN
IGBT
IGB
TVS
TM
LOAD
CONTROL
MODULE
LINE R & L
1. CONCEPT
ac POWER FROM
SERVICE ENTRY
TO
LOAD
TVS
IGBT
LINE R & L


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