If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
I wonder which igbt is best for high power SISG TC. The maximum allowed pulsed current should be about 1000 A. I've considered the following alternatives:
1. Parallel connection of 4 IRGPS60B120KDP IGBTs (1200 V, 240 A pulsed current in each SISG module. 2. One FUJI 1MBI600PX-140-01 module (1400 V, 1200 A pulsed current in each SISG module. I could get such modules for 40 Euros at ebay Germany.
The 2. alternative would be a bit cheaper. But there are also disadvantages of the FUJI module: Bigger parasitic capacitances. And these modules are used and I don't know how long. IGBT modules have a limited life time due to mechanical stress occuring when the temperature goes up and down.
Thus I tend to the 1. alternative. What's your opinion about it ?
Registered Member #1875
Joined: Sun Dec 21 2008, 06:36PM
Location:
Posts: 635
I would have to lean towards brick.
I wouldn't worry about the capacitances. The worst that could happen from that is a parasitic oscillation that the diode clamps half way through it's oscillation. Also, turn on would have a little more loss due to the capacitances, but the package is built to handle that sort of thing.
The main issue I would consider would be the power dissipation. 595 watts is the best case scenario for each of the IRGPS units, so x4 would mean 2380. The brick alone is rated 4100 watts, almost double... Simply put, bricks take more abuse because of their design (lower thermal resistance- compare the datasheets).
A brick is a bunch of paralleled IGBTs, so you can *generally* compare the masses (sum of the paralleled vs single brick) to determine which is probably better. If you can save money and get more dissipation, I'd take that. Also, the slightly higher voltage could be helpful.
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
Best IGBTs for high power SISG TCs
