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> Is 5.15v Dc (idle) Safe?, hama universal switch mode power supply
jan
post Mar 7 2006, 02:45 AM
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Hi all,
bought an AC adapter. Asked the (clueless) vendor whether 5V meant 5.00V+-0 or something else. Vendor said, sure it's exactly 5 volts.

Now I got it and my voltmeter says 5.15V. Rumor has it that anything <5.3V is safe but the adapter wasn't too expensive and I'm afraid that loaded it could have voltage peaks. Any hints.

It's rated 2.5A @ 5V ("stabilized"). The product is called "Electronic 2.5".
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omega
post Mar 7 2006, 05:14 AM
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Sounds grand (Electronics Engineer). I wouldn't hesitate - it's well within 5%.... and better higher than lower, to make sure it charges the battery properly...

BTW, your multimeter probably has a few percent error!
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jan
post Mar 7 2006, 12:29 PM
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QUOTE(omega @ Mar 7 2006, 03:14 PM)
BTW, your multimeter probably has a few percent error!
*


Sure. Thanks for your reply.
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hobbified
post May 18 2006, 03:02 PM
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QUOTE(jan @ Mar 7 2006, 05:45 AM)
Hi all,
bought an AC adapter. Asked the (clueless) vendor whether 5V meant 5.00V+-0 or something else. Vendor said, sure it's exactly 5 volts.

Now I got it and my voltmeter says 5.15V. Rumor has it that anything <5.3V is safe but the adapter wasn't too expensive and I'm afraid that loaded it could have voltage peaks. Any hints.

It's rated 2.5A @ 5V ("stabilized"). The product is called "Electronic 2.5".
*


If you're measuring the voltage across a switching power supply with no load, the only voltage you'll never see is the one it's rated for. Usually it's high; I'm surprised that you saw 5.15 volts on the line, rather than 5.5 or 6. In any case, you should be just fine; my Zaurus (collie) is perfectly happy on 5-6 V.
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bam
post May 18 2006, 06:22 PM
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without a load, probably just fine...whats it measure with a load?
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chyang
post May 20 2006, 03:05 PM
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My measurement over my previous SL5500 power adapter is 5.18V without load, so it may be Ok.
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