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DRSSTC Build again

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colin heath

Wed Dec 17 2008, 10:08PM

Registered Member #123 Joined: Fri Feb 10 2006, 12:58PM
Location:
Posts: 162

OK have finally got some more done on the worlds slowest project lol! I was going to shelve the DRSSTC for now but after digging out the parts following a house move I realised how close I am to completing. I have all but finished populating the driver board now and have the bridge built also (will post pics this week if get chance)

I need to do some final soldering, then I can run up the board and test for operation along with phasing gates etc. I am looking forward to running some power through this coil as I am hoping for big things. i think running 600nf cap and a couple of 200amp bricks should process some power.

Zorink

Wed Dec 17 2008, 10:19PM

Registered Member #1292 Joined: Wed Feb 06 2008, 04:09AM
Location: Mesa, AZ
Posts: 25

I've never seen a toroid like that, what's the performance difference from a spun aluminum one? (or does it just look awesome?)

Bennem

Thu Dec 18 2008, 06:25AM

Registered Member #154 Joined: Sun Feb 12 2006, 04:28PM
Location: Westmidlands, UK
Posts: 260

Hi Colin,
Good to hear that the project is still going
(not the worlds fastest project....hehe)
but i do understand how 'every day life' can get in the way.

What bridge drive will you be using for the bricks?
direct from a GDT?

looking forward to seeing more pics!

All the best
Mel.

colin heath

Thu Dec 18 2008, 10:40AM

Registered Member #123 Joined: Fri Feb 10 2006, 12:58PM
Location:
Posts: 162

hi mel, yes I am using gdt for bricks and using steve wards driver board. hoping to have the bridge switching by the weekend

Dr. Drone

Thu Dec 18 2008, 07:51PM

Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
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Posts: 1673

colin heath

Thu Dec 18 2008, 09:26PM

Registered Member #123 Joined: Fri Feb 10 2006, 12:58PM
Location:
Posts: 162

Dr. Spark wrote ...

Go man go. Is your DRSSTC going to be done before mine, hee hee.

History: We both ordered the same parts and started on a 1/2 bridge DRSSTCs, mine is Stoker 103. It will be interesting to see the performance of the two due to same driver and IGBT's.

Spark on,
Ch

Damn just typed reply and my pc shutdown! Those brick sure are nice Chris;-)

I thought i had finished soldering the board until I realised that I have put 15 and 5v regulator in wrong positions. I also have a problem with the output pin of what should be the 15 v regulator is down to ground. I have a feeling though it's due to blowing them by some other prodding i did. So I had a temper tantrum in the garage and decided me and sausage fingers should retire for the evening. I will come back to this at the weekend and I won't leave workshop until it's finished and tested

Tom540

Thu Dec 18 2008, 10:36PM

Banned on 3/17/2009.
Registered Member #487 Joined: Sun Jul 09 2006, 01:22AM
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Posts: 617

So what are your specs?

colin heath

Sat Jun 06 2009, 08:41PM

Registered Member #123 Joined: Fri Feb 10 2006, 12:58PM
Location:
Posts: 162

Well it lives at long last!amazed

I spent some time in shop today and after some emails with Chris (thanks mate much appreciated) Finally got all the signals coming through. Powered up with battery and corrected phasing on gates and feedback transformer then a little tuning. I have moved house since last using my variac and it takes the breaker straight out. need c rated breakers as these are b. SO me being me couldn't wait till next week so fired it up at full voltage at the risk of destroying everything:-p

Charged storage caps up on doubler (2 times breaker went out) then turned break rate and on time right down. The I threw the switch..........28 inch power arc to lads moped so shut down quick. It sounded very powerful with the 320nf tank cap giving a real nice bang energy:-)

So need to get some new breakers next week then can run it at sensible voltages while i scope it all out. need to connect OCD also.

Mates

Sun Jun 07 2009, 11:29AM

Registered Member #1025 Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566

colin heath wrote ...

....using my variac and it takes the breaker straight out. need c rated breakers as these are b....

There is a small trick to overrun the variac breaking-breaker problem. Simply plug the variac while the breaker is down and than turn the breaker on twice or three times with minimum interval. Usually already the second attempt is successful and the breaker holds...

Otherwise very nice work indeed!

Dalus

Sun Jun 07 2009, 11:40AM

Registered Member #639 Joined: Wed Apr 11 2007, 09:09PM
Location: The Netherlands, Herkenbosch
Posts: 512

Looking forward to see some sparks from this beast. The whole coils looks like one of a kind with it's toroid a job well done.

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