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4hv.org :: Forums :: General Science and Electronics
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Quick voltage doubler question

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Myke
Fri Jun 27 2008, 04:17AM Print
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Hi, I'm wondering what were the connections for a voltage doubler that used just a bridge rectifier and two caps. I have made it before, I just can't find the connections I am supposed to make anymore.
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quicksilver
Fri Jun 27 2008, 03:26PM
quicksilver Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679
I would like to "piggy-back" that question with another about voltage/current rating. I would imagine that the current of a rectifier or diode could be kept low but what of the voltage level? If one were using some 15Kv caps would the diodes need similar rating?
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Tom540
Fri Jun 27 2008, 05:18PM
Tom540 Banned on 3/17/2009.
Registered Member #487 Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
put the two caps in series, connect positive out from bridge to positive of the series caps, negative to the negative side of the series caps and then connect a wire from AC in to the middle of the two series caps.
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GeordieBoy
Fri Jun 27 2008, 07:24PM
GeordieBoy Registered Member #1232 Joined: Wed Jan 16 2008, 10:53PM
Location: Doon tha Toon!
Posts: 881
These links show the "switch enabled" or "jumpered" voltage doubler configuration typically used in switched-mode PSUs.

Link2
Link2

-Richie,
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Myke
Fri Jun 27 2008, 11:34PM
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Ah, thanks a lot. smile
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