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.
Registered Member #120
Joined: Fri Feb 10 2006, 07:07AM
Location: Westchester New York
Posts: 83
I'm just curious as to who runs they're SSTCs at 120Vac then have it half-wave rectified or at 230Vac half rectified? I've been seeing several people in the US running at 230 and others running at 120. Of coarse it's odvious that 230 would have better results b/c of the higher input voltage. But is it necessary? What does everyone advise? Now once again what about the DRSSTCs? Use 230 or 120 full-waved rectified? Whats best? Also how come I get smaller arcs an a full-wave rectified SSTC? Yes I did google this, however, most of everyones circuits don't show the input voltage unfortunately javascript:addtext('!sad',true).
Registered Member #55
Joined: Thu Feb 09 2006, 04:56AM
Location:
Posts: 149
And switching topology, a fullbridge will effectively had double PP output of a halfbridge. So halfbridge and doubler =fullbridge no doubler, fullbridge with doubler=
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
Problem with it is that in halfbridge IGBT's still face full supply voltage, so it may not be comparable with fullbridge with/with no doubler.
For example, fullbridge can work with 320V supply with 600V IGBT's, but halfbridge would need it doubled to 640V for same effects adn IGBT's would pop.
Registered Member #55
Joined: Thu Feb 09 2006, 04:56AM
Location:
Posts: 149
For example, fullbridge can work with 320V supply with 600V IGBT's, but halfbridge would need it doubled to 640V for same effects adn IGBT's would pop.
Thats the point I was making. Topology is a factor to consider when thinking of input voltage.
Registered Member #102
Joined: Thu Feb 09 2006, 08:15PM
Location: Raleigh, NC
Posts: 169
Thomas, i use 120. I feel that the higher voltage you use in, allows you to use the same power as you would with a lower voltage, but keep the current down. since IGBT's and mosfets tend to disipate more heat when the pwoer is manafested in current.
Halfwave rectification not only lowers the input V to .707*(input RMS) but it also puts a 60 Hz inturuption in for you. (d'oh)
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
MOD EDIT: Changed Title Thread
*** When choosing a thread title, please choose one that best fits the subject you will be discussing. No one should have to click on the actual thread to find out what the particular thread is about. ***
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.
SSTCs: Input Voltage vs. Half-Wave, Full-Wave, etc...
