[time-nuts] +12 Volts 1A (plus a bit) supply?
Bob Stewart
bob at evoria.net
Thu Jun 27 18:51:28 UTC 2013
The transformer gives me about 20 volts DC out. Dropping 8 volts at 1 amp is just a lot of power to void with a resistor. I'd like to avoid having that much waste heat in the unit. I do have an old power brick, but I was hoping there was some small switching board that people had had good luck with. Maybe the brick is the best option.
Bob
>________________________________
> From: Chris Albertson <albertson.chris at gmail.com>
>To: Bob Stewart <bob at evoria.net>; Discussion of precise time and frequency measurement <time-nuts at febo.com>
>Sent: Thursday, June 27, 2013 1:32 PM
>Subject: Re: [time-nuts] +12 Volts 1A (plus a bit) supply?
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>You mean you have to many volts for a 12V regulator to drop> That's easy to fix, use a resister in series. Make the resister par of an RC filter and cleaner power in the process.
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>I use a plug-in power brink from an old notebook computer. I think mine outputs 15V and then this gets dropped to 12V and 5V with a RC filter and regulators.
>
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