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How to test AC->DC adapter?

B

Brent

Jan 1, 1970
0
When checking ACDC adapters to see if it's good, they all read 2-5V
above their rated voltage. Is this normal? This is with no load on
them. There's no way to check amps without having them plugged into a
device to create a load, correct?
 
J

John Popelish

Jan 1, 1970
0
Brent said:
When checking ACDC adapters to see if it's good, they all read 2-5V
above their rated voltage. Is this normal? This is with no load on
them. There's no way to check amps without having them plugged into a
device to create a load, correct?

Correct. Most AC to DC adapters are unregulated and reach specified
voltage only with the specified load current.
 
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