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 #1648
Joined: Thu Aug 21 2008, 06:03AM
Location:
Posts: 5
Please give my best regards to me in the Japanese though it is not so good at English. I developed SSTC that started easily easily very much. From the Secondary of Tesracoil to direct fathom of signal It is a circuit that amplifies by the emitter follower and does MOSFET in the switching. The square wave of 1MHZ is used with LMC555 for the trigger. It is a problem that the damage rate of MOSFET is very high. It is likely not to move according to the transistor and MOSFET for amplification even though the certainty is high.
Registered Member #1648
Joined: Thu Aug 21 2008, 06:03AM
Location:
Posts: 5
Because it was a thing made from the improvisation, 555 oscillation circuit was not corrected that it was detailed. The high frequency that becomes a trigger from this oscillation circuit is output. When SSTC starts, the output from 555 moves SSTC by using the lack in the feedback signal from Tesracoil and erasing.
Registered Member #989
Joined: Sat Sept 08 2007, 02:15AM
Location: São Paulo, Brazil
Posts: 476
The Pin 3 Feedback with a resistor to pin 2 and 6 works good, and gives it 50% duty cycle (that is the difference between the another) , but a buffer is really needed on the output, because if the currents get high on the 555 output, the voltage drops, and the frequency changes (and some times stop to oscilate).
I use that 555 configuration in some of my interrupters, that you can get a very better adjust of duty cycle (with diodes)
Registered Member #1024
Joined: Sun Sept 23 2007, 10:56AM
Location: Northern NSW, Australia
Posts: 95
aonomus wrote ...
Gate driver chips internally have a halfbridge, and each MOSFET has its own diode by its own nature.
The TI UCC series of drivers seems more robust in this respect (not needing clamping diodes), but in my experience the Microchip TCxxxx series are easy to kill without them.
Anyway, nice work NNO2 , we all like to see new ways to build things!
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.
Very Easy SSTC
