Voltage Multiplier
A
voltage multiplier
is an
electrical circuit
that converts DC electrical power from a low
voltage
to a higher voltage. Although the
DC to DC converter
performs a similar function, the term
voltage multiplier
is reserved for circuits that use a network of
capacitors
and
diodes
to generate high voltages. Voltage multipliers range in size from microscopic devices called
charge pumps
, which are built in to
integrated circuits
to generate bias voltages of a few volts or tens of volts, to towers, many metres tall, that generate millions of volts for purposes such as
high-energy physics
experiments and
lightning
safety testing. A common type of voltage multiplier used in high-energy physics is the
Cockcroft-Walton generator
(which was designed by
John Douglas Cockcroft
and
Ernest Thomas Sinton Walton
for a
particle accelerator
, for use in research that won them the
Nobel Prize in Physics
in
1951
). Another type used in high-energy physics is the
Marx generator
, which uses
spark gaps
instead of diodes as the switching elements.
External links
Basic multiplier circuits
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