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Re: [TCML] SSTC help
Anyone got a cheep scope for sale? This would be my first problem as I'm new to electronics and don't have a scope.
On 2009-10-14 12:14:39 -0600 John Forcina <forcijo10@xxxxxxxxx> wrote:
> Yes. I am also very curious to see sparks from DC Cox's systems. I have
> been hearing a lot about how good they are and i am just interested in some
> more spark pictures and/or more info.
> On another note in regards to Rob's SSTC, Can you provide us with some
> scope shots of your gate waveforms or your feedback circuitry etc...? From
> my personal experience with that coil it does not like being ran with a
> On Tue, Oct 13, 2009 at 11:11 PM, Dr.Hankenstein <
> dr.hankenstein@xxxxxxxxxxxxx> wrote:
>> Show me the sparks!
>> -----Original Message-----
>>> From: DC Cox <resonance@xxxxxxxxxxxx>
>>> Sent: Oct 13, 2009 4:59 PM
>>> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>>> Subject: Re: [TCML] SSTC help
>>> If your igbts are not phased properly one may be slightly turned on while
>>> the other is slightly off. If you don't phase them properly they will
>>> is short order.
>>> Also, check for high frequency ringing which is a killer. Proper
>>> with inductors or caps can eliminate this problem.
>>> The system of feedback you use to keep the pri circuit in tune with the
>>> circuit is also critical. Solid state components work great but will
>>> absolutely not tolerate much range as will the spark gap type oscillators.
>>> I hope to have a set of boards populated and ready for sale this winter.
>>> Right now they are working great running with Powerex CM300s on our test
>>> Dr. Resonance
>>> On Mon, Oct 12, 2009 at 9:13 PM, Rob Byron <mustang_5l87@xxxxxxxxxxx>
>>>> Hello, I have been working on my first solid state coil for a good part
>>>> a year and after many blown components and hours searching the net, I am
>>>> stumped. The coil I am working on is of Steve Ward's mini sstc. I used
>>>> to etch a board to replace the crappy proto type board. This gave me
>>>> results ( my UCC's don't fry anymore :) I put an LED on the output of
>>>> interruper to make sure that works. My gate drive IC's make a high
>>>> buzz. Not sure if I should be able to hear that? But it leads me to
>>>> they work. My half bridge is on a variac, rectified and filtered. I get
>>>> 170VDC at full power on the bridge. But I can't get breakout?? I did try
>>>> swapping the primary leads to get 180* out of phase. Here is a link to
>>>> video. http://www.youtube.com/watch?v=kX7oV9iC0Jo
>>>> Thanks in advance for any help.
>>>> Tesla mailing list
>>> Tesla mailing list
>> Tesla mailing list
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