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4hv.org :: Forums :: Tesla Coils
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Powering a TC with a voltage multiplier

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Crunchy Frog
Mon Oct 12 2009, 02:46AM Print
Crunchy Frog Registered Member #2422 Joined: Tue Oct 06 2009, 02:41AM
Location:
Posts: 85
Is it a good idea?

For example, using 2 MOTs with single stage CWs (2 diode, 2 cap), one in positive polarity and the other in negative.

Or, doing this with the multiplier already in the microwave (1 diode, 1 cap) so the waveforms are ac with respect to ground and dc with respect to each other. (Does this even work at all? I'm not sure...)
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Steve Conner
Mon Oct 12 2009, 09:52AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Worked for me Link2
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Crunchy Frog
Mon Oct 12 2009, 05:50PM
Crunchy Frog Registered Member #2422 Joined: Tue Oct 06 2009, 02:41AM
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Posts: 85
Link2 That guy did it with only 2 caps and 4 diodes, but 2 reactors. What's the difference between his circuit and yours?
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brtaman
Mon Oct 12 2009, 07:21PM
brtaman Registered Member #2161 Joined: Fri Jun 05 2009, 03:36PM
Location:
Posts: 247
Crunchy Frog wrote ...

Link2 That guy did it with only 2 caps and 4 diodes, but 2 reactors. What's the difference between his circuit and yours?

He used 35 1n4007's and 16 substantial caps. Scroll down wink
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Crunchy Frog
Mon Oct 12 2009, 07:56PM
Crunchy Frog Registered Member #2422 Joined: Tue Oct 06 2009, 02:41AM
Location:
Posts: 85
brtaman wrote ...

He used 35 1n4007's and 16 substantial caps. Scroll down wink

I didn't mean physically, I meant in the schematic.
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Arcstarter
Mon Oct 12 2009, 08:40PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Crunchy Frog wrote ...

Link2 That guy did it with only 2 caps and 4 diodes, but 2 reactors. What's the difference between his circuit and yours?
There is not really much of a difference, if im not mistaken. The link's is only a doubler, with two de-Qing diodes. I made Conner's schematic, and it worked great. Like him i used low capacitance, and high breakrate, up to 3000BPS and could still get 2 foot sparks. I highly suggest it.

Jeep in mind, you can always use series lytics for the doubler. Make sure you have a juicy reactor, if it is not big enough the current can rise faster, and your lytics will get hot. That is not good! Also, the reactor will see around 2 times the voltage of the supply. I used 4 MOTs in series, and they all officially died.
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brtaman
Mon Oct 12 2009, 10:17PM
brtaman Registered Member #2161 Joined: Fri Jun 05 2009, 03:36PM
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Posts: 247
Whoops. Sorry about that, Crazy Frog. angry

Good luck with the project, I would go with McConners version myself, it comes with the guarantee of being engineered by a mastermind.
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HV Enthusiast
Tue Oct 13 2009, 05:35PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
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Posts: 3068
Almost all electronics / power supplies / appliacnes, that have a selector switch between 115 and 230VAC utilize a switched-in voltage doubler. Just keep in mind, large stacks of multipliers aren't very efficient and also have a inherit current limiting characteristic.

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