Re: AC and DC adapters
- From: "Phil Allison" <philallison@xxxxxxxxxx>
- Date: Thu, 2 Mar 2006 20:31:23 +1100
"Mike S."
Could someone please explain the difference between an AC
adapter/transformer and a DC adapter/transformer.
** The former is just an iron core transformer in a plastic box - while
the latter has additional rectifier /filter components to create a DC
voltage ( ie just like a battery) from the AC output of the transformer.
What would they each be used for?
** A DC adaptor simply replaces a the job normally done by a battery. An
AC adaptor however, allows the designer of some particular device a much
wider range of options.
With an AC adaptor as the supply, a designer can easily generate
*simultaneous* positive and a negative DC voltages AS WELL AS boost
the voltage to way more than the AC voltage would suggest.
Eg .
From a single 9 volt AC supply, one can easily generate + 12 volts and - 12volts, + 24 volts and - 24 volts, + 48 volt and -48 volts simultaneously.
......... Phil
.
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- From: Mike S.
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