Gate driver question / Tesla Coils / Forums

Welcome

Online

Members Birthdays:

All today's birthdays', congrats!
Mathias (41)
slash128v6 (52)

Next birthdays
02/01 Barry (70)
02/01 Snowcat (37)
02/01 wylie (43)

Contact

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.

Forums

4hv.org :: Forums :: Tesla Coils

« Previous topic | Next topic »

Gate driver question

Move Thread

LAN_403

Sun Sept 02 2012, 09:40AM

Registered Member #4146 Joined: Tue Oct 18 2011, 02:01AM
Location: Wisconsin, U.S.A
Posts: 56

Hey guys just wondering if i need to do anything special when using TC4421 TO220 in parallel? I ask because i have been working on a DRSSTC and to get my gate drive powerful enough i had to parallel the drivers. It worked great until i made a new topload and switched to a larger secondary for a lower frequency. I had great sparks going until i killed 1 of the 4 gate drivers(running 2 sets of 2). So my question is can i just connect the outputs directly together or do i need to add something after each driver and before connecting them together or did the EM from the coil simply take out the 1 driver and the 74hc08 from being to close to the coil. Coil was about 2 feet away from driver board with no shielding and i realize that is an issue all in itself but i was low power testing. 40 volts into a voltage doubler connecting to a fullbridge. Any help would be appreciated. Thanks

HV Enthusiast

Mon Sept 03 2012, 03:24PM

Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068

You can run them in parallel.
You could also use the IXYS 30A drivers or IXYS 14A drivers which are in TO-220 packages as well.

For DIP packages, its common to just stack them one on top of each other. Thermal consideration must be taken into account though.

Mon Sept 03 2012, 04:23PM

Registered Member #4146 Joined: Tue Oct 18 2011, 02:01AM
Location: Wisconsin, U.S.A
Posts: 56

Ok thanks very much i just wasn't sure if i had to do anything special to parallel them up. I'm thinking that the circuitry was to close to the coil and blasted the 74hc08 which in turned caused the issue with the gate driver. Again thanks alot for the help.

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Legal Information