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Re: Can a power supply have too much current?



In article <45e74450$0$91151$c30e37c6@lon-reader.news.telstra.net>,
Tristan Mumford  <xtristan.xmumford@xgmail.xcom> wrote:
>Scott Alfter wrote:
>> In article <kYidncuCo9wftXrYnZ2dnUVZ_uSgnZ2d@giganews.com>,
>> Scott Alfter <scott@alfter.DIESPAMMERSDIE.us> wrote:
>>>Stick a power resistor or two of appropriate values on the outputs.  For
>>>some MicroATX power supplies we rewired for a project, we put 8.2Ω 5W
>>>resistors on the +5V output.
>
>I was going to ask why you used the resistors. Then I realised that you
>might have used them in a low current situation.

We needed a fair bit of +12V, but nothing on +5V.  The power supply's
regulation is based off of what happens to +5V, though, which is why we put
a dummy load on it.  It was cheaper to hack up a computer power supply
(maybe $20-$25 each at Fry's) than to buy a purpose-built single-output
supply with the output capability we needed.

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