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.
The windings for the two gate drive transformers are 16 turns, and each transformer has 3 winding, one primary and two secondaries. The secondaries are connected in anti phase, and the primaries of the two gate drive transformers are also connected in anti phase too
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
rajheman wrote ...
The windings for the two gate drive transformers are 16 turns, and each transformer has 3 winding, one primary and two secondaries. The secondaries are connected in anti phase, and the primaries of the two gate drive transformers are also connected in anti phase too
I think you only need the secondaries wired in anti-phase. Wiring both primary and secondaries in anti-phase means you are back where you started.
I think you've made a mistake. It looks to me like you have both high side switches open together, and both low side switches opening together.
I think the mistake is because you've switched both the primary and secondary connections on the right hand side. You only need to switch the secondary connections, I think.
EDIT: I'm assuming switches 1 and 3 are high side and 2 and 4 are low side. 1 and 4 should be 'on' together, and 2 and 3 should be 'on' together, if I'm interpreting it correctly.
Yes your right ash. Just now I have read about H bridge circuit on wikipedia
Actually I made GDT connection on the suggestions of Mr. Julian
I have confused at point 7 on Julian suggestions. Any how thanks a lot Mr. Ash for helping me on pointing out my mistake Thanks a lot to Mr.Julian too :)
The windings for the two gate drive transformers are 16 turns, and each transformer has 3 winding, one primary and two secondaries. The secondaries are connected in anti phase, and the primaries of the two gate drive transformers are also connected in anti phase too
I think you only need the secondaries wired in anti-phase. Wiring both primary and secondaries in anti-phase means you are back where you started.
You mean I just need to keep only secondary of gdt are in anti phase. But in Richie Burnett's schematic he connected left side gdt in parallel with points A and point B But in second gdt (right side in schematic) point D and point C are crossly connected. Plz check his schematic Schematic 1
sstc01.gif In above image Richie mentioned that . adjust for 50:50 square wave out put at 10k pot . Did he mean to adjust 10k pot to its center position ?? (I don't have oscilloscope) Plz help this is last doubt to make my coil resonate Thanks in advance Regards Rajheman
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
rajheman wrote ...
One more last question.
sstc01.gif In above image Richie mentioned that . adjust for 50:50 square wave out put at 10k pot . Did he mean to adjust 10k pot to its center position ?? (I don't have oscilloscope) Plz help this is last doubt to make my coil resonate Thanks in advance
Regards Rajheman
I've not checked, but I assume the 10k pot adjusts the duty cycle. 50% is unlikely to be the mid point of the pot.
I can't think offhand of an accurate alternative to a 'scope. Maybe others who have built this without a 'scope can help here?
(EDIT: Maybe it's possible to charge/discharge a capacitor through a resistor, and measure where the average voltage remains constant, or some similar method?)
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.
Re: gate drive transformer of Richie Burnett's schematic
