[TriEmbed] Power Supplies

[Paul Holzworth]

The only concern I would have is if the supply is unregulated, the voltage will rise above 12 VDC with a light load.  Unregulated supplies are rated for voltage at the rated current.  If you have a volt meter, you can measure the output voltage without a load and see if it is actually 12.  If it is, you are good to go.  If it goes above that nominal value, it is probably unregulated and I wouldn't use it at much below rated current.  (It could easily be 16 or 17 volts if unregulated and unloaded)  I suspect that given the current rating, you have a regulated switching supply.  If it is a wall wart type, it would be large and heavy if it depended on a 60Hz transformer.  Switchers are smaller and light.

Paul

On Oct 16, 2013, at 2:14 PM, Grawburg <grawburg at myglnc.com> wrote:

> I have a good 12 VDC 3A power supply.  If my project only requires 300 - 400 mA is there any reason
> why I can't or shouldn't use my power supply?
> 
> Brian Grawburg
> Wilson
> 
> -- 
> The truth will set you free . . .but first it will piss you off.
> 
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