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Switching Power Supply best practice
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Topic: Switching Power Supply best practice (Read 1128 times)
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ncflagg
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Switching Power Supply best practice
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March 09, 2008, 03:18:22 pm »
I've heard you can damage a switching power supply by powering it on without anything connected. Does this mean you need something connected to every voltage? (I.E. -5 +5 & +12) Or, will hooking up JUST the +5 or the +12 be enough to protect it?
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grantspain
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Re: Switching Power Supply best practice
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March 09, 2008, 04:05:47 pm »
it should do no damage at all as it will not power up,a switch mode psu normally powers up with just a +5v load(like a halogen bulb)-thats how i test them anyway
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Ken Layton
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Re: Switching Power Supply best practice
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Reply #2 on:
March 09, 2008, 07:52:46 pm »
It depends on the make and model of power supply. The typical genuine Peter Chou screw terminal supply does not need any load connected to power up or test.
That's a different story for any of the 'computer style' power supplies used in various games. Many must have a load connected to the +5 AND the +12 volt lines.
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