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Registered Member #175
Joined: Tue Feb 14 2006, 09:32PM
Location: Sudbury, ON
Posts: 111
How cheap/simple do you need? Cheapest and simplest would be a DC motor coupled to an AC generator-- but that won't exactly be efficient, now will it? More efficient would be a smaller DC motor spinning a communator to flip the waveform at 60Hz-- but you're not going to get a nice sine wave that way, and the efficiency would still leave something to be desired. A solid state inverter will be neither cheap nor simple to build; buying one is simple but not cheap, but almost always turns out to be the best option.
Registered Member #1062
Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
can you explain the ocsillating relay more? I mainly want to convert a camera flash output to AC to put through and voltage multiplier. I read some where this can be done by removing the diode, is this true? I mainly want to build for expierementation, but also for charging caps at higher voltage.
Registered Member #49
Joined: Thu Feb 09 2006, 04:05AM
Location: Bigass Pile of Penguins
Posts: 362
its more-or-less impossible. several universities have been running high profile experiments for decades trying to solve this problem without any luck.
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
If you connect up a relay like this: it will oscillate on and off. Then you use spare contacts or an additional relay to reverese the polarity of your DC supply. It is not a good solution but simple.
Instead of removing the diode you might want to make a connection before the diode then you can extract the output of the transformer and experiment without modifying the circuit.
Registered Member #33
Joined: Sat Feb 04 2006, 01:31PM
Location: Norway
Posts: 971
Yes, removing the diode will work fine.
I've tried this myself, and it works really well, especially with inverters from Fuji cameras. I was able to get about 6-7kV out with a 5-stage multiplier and 3V in.
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power inverter
