I did not mean ac, because I considered using it with wallplug dc adaptors
as well as cigarrette lighters in a car, but to make it working with dc as
well there is simply a rectifier bridge needed in front of the adapter, that
would even protect it against wrong dc polarity at the input...
For MP120 the design can simply be modified according to the correct
settings for output voltage and current limitation. This is done by changing
the value of two resistors. Piece of cake.
Johannes
> -----Original Message-----
> From: newtontalk-bounce_at_newtontalk.net
> [mailto:newtontalk-bounce_at_newtontalk.net]On Behalf Of Glen Warner
> Sent: Saturday, November 09, 2002 3:04 AM
> To: newtontalk_at_newtontalk.net
> Subject: Re: [NTLK] Generic AC adapter
> (*snip*)
> > Thats why I had the idea to design an adaptor which matches
> perfectly to the
> > Newt and allows you to use any dc source from 8 to 40 Volts 1 A
> minimum.
>
> Um ... you did mean AC source, right? :o)
>
> > This can be done using only one regulator chip and a few external
> parts.
> > I am currently in the phase of testing it.
>
> This sounds good ... but it looks like your charger won't handle the
> older Newts (OMP, 120, etc.). Any way to accomodate those users?
>
> --gdw
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