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 #3436
Joined: Tue Nov 23 2010, 04:12PM
Location: Latvija [Lettland]
Posts: 20
HI
My newest project is a HV generator on this TL494 (woner chip :) ), i have the shematics for generator, and drivers (its will be i hope a Halfbridge generator ), but the problem is the power part of the generator , i have this wonderful IGBT`s [HGTG11N120CND] :
but i dont now ho to run them (without a grey smoke :D ) , mb some have a shematic for the H-bridge, the power for the bridge i think i make 300-400VDC (similar to pc power supply)
Registered Member #3436
Joined: Tue Nov 23 2010, 04:12PM
Location: Latvija [Lettland]
Posts: 20
Hmm :D i have this circuit, my first Mk1 version, i hope its will work, but mb some one have assembled something like this and can me help a bit First time a H-Bridge gen, all other was only a boost converters or cheap 555 stuff :D
Registered Member #3436
Joined: Tue Nov 23 2010, 04:12PM
Location: Latvija [Lettland]
Posts: 20
Hello Is anybody hear? :) /silence
I have one more question , may be some answers it in this year :)
Ho long can be the wires (leads) of the GDT? I will split my circuit in two parts one with generator and the drivers , the other will be the power part with GDT, IGBT`S, trafo ~ 15v for all electronics and all other stuff. My idea is connect the outgoing signal from generator with the GDT with screaned cable length about 10-15cm (dependent on case for PS)
Registered Member #3436
Joined: Tue Nov 23 2010, 04:12PM
Location: Latvija [Lettland]
Posts: 20
Thanks! This Weekend (too much work in working days, cannot go to my Lab :((( ) then i will try to make the first version of my new HV PS :)
Im thinking now about current protection for the power section, im add some current transfo 1:20 to control the output current and protect IGBT`s i have one idea i will post it later:)
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.
A TL494 based HV generator
