Re: Mini-coils?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Bart Anderson <classi6-at-classictesla-dot-com> 

Hi Chris, DC,

I stopped in to EMCO High Votlage Corporation Tuesday, but the application 
engineers were not around. I called early Wednesday and talked to Charles, 
an application engineer. These HV converters are pretty small on current 
(~2mA). I discussed the possibility of paralleling, and he agreed it can be 
done, but these converters are affected by biasing votlages internal. They 
have internal oscillation for the transformer action required, but the bias 
is affected when they are paralleled or when transient events are seen by 
the device. They are not "designed" to cut out, but do because the 
oscillation bias is affected. The converters would have to be balanced with 
some type of external circuitry to stabilize the device, but he hasn't 
performed such a task himself. These converters are designed for pcb 
mounting which is the bread and butter for EMCO (that is where the 
knowledge base is).

One could work with these to stabilize the device (balancing and 
filtering), but they are pretty small on current. I think it would take 
some experimental work to get these working, and there is still no 
gaurantee. Might be more trouble than it's worth.

Not sure if this helps. You may want to talk to an application engineer:
EMCO High Voltage Corporation
(209) 223-3626

Take care,
Bart


Tesla list wrote:

>Original poster: Mike <megavolts61-at-yahoo-dot-com>
> >
>Good idea Chris but it won't fly. We've worked with the Emco units.
>They
>have automatic internal shutdown any time a spark occurs or excessive
>corona
>occurs. They come back in 1-2 sec. but just won't work for a TC power
>source.
>
>Dr. Resonance
> > snip<
>   Why don't one of you electrical geniouses figure out how to use the 
> flash charging ciruit from a disposable camera for this mini coil 
> thing?  Seems maybe a multiplier circuit istead of the big cap...any ideas?
>Mike
>
>Mike
>
>
>
>