Maker Pro
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Power Supplys

A

AMX

Jan 1, 1970
0
I have got some DC Power Supplys for some projects one 6 volt and one 5
volt the 5 volt one reads 5.5volts but the 6 volt one reads 8.1 volts
the circuit board that it is powering says 5 to 7.5 volts will it be ok
with it and also i tested some more power supplys and some read close
to the output voltage and others where way off like a 12 volt one said
18 volts why is this? cheers
 
R

Ralph Mowery

Jan 1, 1970
0
AMX said:
I have got some DC Power Supplys for some projects one 6 volt and one 5
volt the 5 volt one reads 5.5volts but the 6 volt one reads 8.1 volts
the circuit board that it is powering says 5 to 7.5 volts will it be ok
with it and also i tested some more power supplys and some read close
to the output voltage and others where way off like a 12 volt one said
18 volts why is this? cheers

What kind of power supplies ?

If they are the wall cube types, they are not usually regulated and the
unloaded voltage will be somewhat high. As you put a load on them , the
voltage will drop near the rated voltage.
 
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