RE: Offline Cockroft-Walton

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

Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>


Not only possible, but this actually is a very common practice, however
usually very low current.
Its just much cheaper and economical to use step-up transformers get high
current / high voltage from
mains voltage than going with this approach.


 > Would it not be possible to use a Cockcroft-Walton multiplier
 > to derive a
 > HV DC supply from ordinary domestic mains voltage WITHOUT the
 > need for a
 > high voltage transformer, as these are often difficult to find.
 >
 > I understand that with multipliers of this type, the current
 > available on
 > the HV side is limited  this is often considered a
 > disadvantage but maybe
 > this is a good thing.
 > In any case, can't the output current be increased by having
 > the lower
 > capacitors in the "ladder" connected in parallel and the
 > upper capacitors
 > connected in series?
 >
 > Also, with regard to possible safety hazard of having HV
 > supply directly
 > connected to mains, could this not be mitigated by use of an
 > isolation
 > transformer between the multiplier and mains supply,
 > only isolation transformers seen to be a lot more common and readily
 > available than high voltage transformers appear to be.
 >
 >