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How to put oscilator in 50V 500A circuit ?

Started by rkahler, May 10, 2009, 11:29:27 AM

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Paul-R

#15
May 28, 2009, 10:03:41 AM
Quote from: rkahler on May 27, 2009, 07:56:10 PM
I'm trying to apply Tesla switch on car batteries.
Over 800 Hz - strange effects ( so they say ).
Below 500 Hz - not efficient.
You should get results at a lower switching rate, 100Hz.
but the classic proposals do not call for such complications.
Have you seen this?:
http://www.free-energy-info.co.uk/Chapter5.pdf
Paul.

rkahler

#16
May 28, 2009, 11:15:54 AM
Yes, I did.
600 Hz looks to me like optimal value.
I'll test lower and higher values just to see what will I get.

the_big_m_in_ok

#17
May 28, 2009, 11:54:33 AM
rkahler said:
Quote
I'm trying to apply Tesla switch on car batteries. Over 800 Hz - strange effects ( so they say ). Below 500 Hz - not efficient.

>>Was there a reason given for that?  I hadn't heard of that.

--Lee
"Truth comes from wisdom and wisdom comes from experience."
--Valdemar Valerian from the Matrix book series

I'm merely a theoretical electronics engineer/technician for now, since I have no extra money for experimentation, but I was a professional electronics/computer technician in the past.
As a result, I have a lot of ideas, but no hard test results to back them up---for now.  That could change if I get a job locally in the Bay Area of California.

rkahler

#18
May 28, 2009, 12:54:42 PM
OK, exact freq is below 100 Hz, I just thought to keep up a bit.
Look at http://www.free-energy-info.co.uk/Chapter5.pdf, page 6.

derricka

#19
May 28, 2009, 10:08:10 PM
If you want to switch high current DC very quickly (assuming 1 direction only), I would suggest using a high power MOSFET such as the International Rectifier IRFS3107-7PPBF
This MOSFET is rated at 75 Volts and can switch on 260 Amps in 17 nanoseconds.
Of course, to switch 500 Amps, you would need to wire two (or three for extra margin) of these in parallel.
Probably won't be your cheapest option, but IRF makes great components.

IRFS3107-7PPBF

Datasheet:
http://www.irf.com/product-info/datasheets/data/irfs3107-7ppbf.pdf
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