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Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
I did not have the stuff for a proper sstc so i decided to make one with a 555. I get about 2 inch really hot sparks with 44 volts input. It will light a florescent tube qite bright from 2 feet away. It will make plasma inside of a light bulb as well.
This is the schematic: I know that it is hard to see because i am not good at drawing schematics and because i had to take a picture of it with my camera which made a black line horizontal across the screen. And i know there is a LOT to be improved upon on the sstc, but i am a beginner with sstc's and i am fairly happy and proud about it. I might upload a video in a few weeks because i need some more irfp460's cause i just burnt my last ones :(.
UPDATE: Fixed the circuit.
ANOTHER UPDATE: Took a better picture. This one you can actually see..
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
jovica93 wrote ...
it would also help if a bd139/bd140 combo was added
Cool... I just need to get some :(. I will not work on this for long as i am getting a new vacuum tube and this one will actually look half way decent... 25 INCH SPARKS BABY!
Oh yea, i also forgot to say i used an irfp460 mosfet, not whatever it said on the circuit.
Registered Member #690
Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
This is not Class E. For Class E operation you need to add a resonant capacitor D-S on your FET. It will significantly improve performance if you do, tho.
Registered Member #1157
Joined: Thu Dec 06 2007, 12:11PM
Location: Houston, TX
Posts: 307
I wonder if you have express PCB? Express PCB will do all the manufacturing for you, but it is kind of expensive.
So I say go with Eagle.
They have wonderful Schematic programs.
With eagle, it will even help you translate the schematic to the PCB when you think you have it right. If your Eagle stuff is ready to send into production, the guys at batch PCB will make your board for you for $2.50 a square inch.
But really, I was just showing you these so you can have a nice Schematic Diagram program.
Registered Member #941
Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
In circuitmaker you can export as bmp, just goto export and choose device dependent bitmap, then save bmp, go into paint and convert it to png, then toss it up in the thread.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
There is the schematic... Also, i think i will try that eagle schematic maker thing. Also, is that schematic not class E? I have a capacitor going from drain to source. It does really improve performance, hotter arcs and better breakout.
Also, i forgot to tell the primary and secondary specs. It is a 4 inch by 16 inch secondary with 28 gauge wire, the primary is something like 28 turns.
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Simple 555 driven class E sstc.
