[NewCandle] Avramenko Rectifier

[Jones Beene]

Keith,

Thanks - more questions are likely.

Two questions immediately and naturally arise wrt the Stiffler circuit 
and stray capacitance.

1) Is there some synergy with the LEDs ?

The AV plug is not gainful in itself, so does the combination develop 
some kind of synergy.

If not, can anyone identify - and actually demonstrate that an expensive 
piece of HP lab equipment can actually provide a watt of power to any 
external circuit, stray capacitance of no ?

2) The video which appeared today, dispenses with the open-wire-core 
(kind of) so that muddies the water...

http://www.youtube.com/watch?v=eN-WGgUkOvY

Jones





> George and Jones convinced me to try to articulate a clear explaination
> of the Avramenko Rectifier. I did some experiments
> with the rectifier yesterday, but after writing some of it up I realized
> I would basically be talking to the trees ( well maybe the wind, happens I'm
> listening to that venerable King Crimson song as I write ). So let me
> try the one paragraph executive summary instead.
> 
> The key to the whole system is stray capacity. That won't come as a
> surprise to many of you, but in the rectifier part it's not clear
> how that comes into play. Here's the deal. The true circuit diagram
> is not as is shown by Avramenko or others on the web. YOU MUST
> INCLUDE THE CAPACITY TO GROUND. In the case of the rectifier, this
> would be modeled as a capacity from the negative free end of
> the rectifier to ground, and a capacitor from the positive free
> end to ground. Draw the circuit that way, and it will immediately
> become obvious how the whole is nothing more than the ordinary
> voltage doubling circuit, with the capacities charging either
> positive or negative depending on which diode they are hung from.
> A load between the two points will now see a mix of DC and AC
> depending on much capacity/how low the load resistance is.
> At high frequencies and impedence, even a pF or two is sufficient to provide
> the return path and complete the circuit. With my experment,
> I was able to change these capacities and make differential
> voltage measurements to see the various effects. My experimental
> arrangement was designed to work at low frequencies and an
> impedence around 3KOhms, so as to be easy to measure and modify without
> interfering with the circuit operations.
> 
> I can post more about this if anyone is interested in the gorey details, but I
> hope if you draw the circuit as I suggest it will become a lot clearer
> to you how the rectifier plug works. Remember, just because you disconnect
> a wire, doesn't mean you get rid of it's capacity. 
> 
> K.
> 
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