very impressive!! carefully built!! one of the best sstcs ive seen!!! sorry "drsstc"has it been improved since this video was taken? not that it needs improving.. just asking!
Cheers!....no i haven't made any alterations to this coil since this video was made at the Derby 'thon.
Its input voltage was just under 200 volts as i was having problems with my solid state variac not giving out full mains voltage....i've since recified that.
Do you have a website?
What IGBT's are you using? Bus voltage? Driver?
Thanks!
cr99991 1 year ago
No, i don't have a website.
but i have more pics on flickr.
search under Bennem1.
My IGBT's are HG1N40N60A4D's
bus voltage is about 300v
(240 v mains here in the UK)
and the driver is Steve Wards primary current feedback circuit.
Mel.
bennem1 1 year ago
Thank you,
The PW was about 50-80 uS
and its operating frequency with that
8 x 2 inch top load is 385 Khz.
This coil is about 2 and half years old now
but still working fine on its original IGBTs.
bennem1 2 years ago
Very nice coil Benem! Great craftsmanship.
If you don't mind me asking, what sort of PW are you using? What is the operating frequency?
bmanTCoiler 2 years ago
The coupling i aim for is around 0.17
The secondary diameter is 2.75 inch
and the primary is 4.15 inch,
The secondary sits about 1 inch into the primary coil and with thoughs parameters JAVA TC calculator says its coupling is 0.17.
I coated the secondary coil with four coats of varnish, just to keep the turns in place.
This coil is about three years old now,
but its still churning out....lol
bennem1 3 years ago
what kind of coupling do you have on that thing? Very nice work. Im sure it took a lot of secondary coats to prevent fashovers.
teslacoolguy 3 years ago
Cheers Peter,
Its spark reaches nearly three times the secondary height which i'm happy about,
but there are better performing solid state coils out there than mine.
Take a look at TAB540's coils.....they
spark without any breakout point!
the random production of sparks from a toroid is way impressive!...IMHO
If i attempted that my transisters would surely blow!....lol
Mel
bennem1 3 years ago
very impressive!! carefully built!! one of the best sstcs ive seen!!! sorry "drsstc"has it been improved since this video was taken? not that it needs improving.. just asking!
teslaspigeon 4 years ago
Cheers!....no i haven't made any alterations to this coil since this video was made at the Derby 'thon.
Its input voltage was just under 200 volts as i was having problems with my solid state variac not giving out full mains voltage....i've since recified that.
bennem1 4 years ago
This coil outperforms any one of mine! It only has an 8" secondary! Mine are 12" Very nice looking too.
Tab54o 4 years ago