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Buck Boost
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From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Sunday, February 01, 1998 10:10 PM
To: Tesla List
Subject: Re: Buck Boost
to: Greg
Not really big --- our commercial units measure 8 x 6 x 4 inches and run
with pole pigs up to 10 kva. The resistance, although small, does really
help smooth things out.
DR.RESONANCE-at-next-wave-dot-net
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: Buck Boost
> Date: Sunday, February 01, 1998 2:36 PM
>
> ----------
> From: Gregory R. Hunter [SMTP:ghunter-at-mail.enterprise-dot-net]
> Sent: Sunday, February 01, 1998 10:06 AM
> To: Tesla List
> Subject: Buck Boost
>
> Coiler Types,
>
> I've been reading the mail about current limiting strategies for
> pole pigs, and I think I'm finally seeing the light.
>
> (1) A really big series choke or variable reactor (arc welder, etc.)
> is required to limit current when the spark gap is firing.
>
> (2) Series resistors are required to prevent excessive current at the
> beginning of each charging cycle (when the empty cap feels like a
> short) when the spark gap is not firing.
>
> (3) The proper combo of choke and resistors yeilds a smooth
> charge/discharge cycle without excessive current draw.
>
> Does all that sound reasonable?
>
> One writer explained that the 230VAC line voltage will divide across
> the choke impedance and pole pig primary impedance, preventing the
> pole pig secondary from developing full potential. I'm thinking the
> choke/reactor will only drop a modest fraction of the line voltage
> during the charge cycle. Could this be corrected using the buck
> boost trick with a hefty low-voltage power transformer? Is the
> voltage drop worth worrying about? Just wondering.
>
> Greg
>
> Infatuated With My New Pig in East Anglia, UK
>