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power supply ?

BammBamm

BammBamm

Instigators ...173 on the southside.
May 24, 2010
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Steger,Illinois
Just wondering, I have a 16 volt 15 amp power supply that has no use around my home but was thinking of mounting it to my work bench as a power source for mobile cb and car stereo stuff. Would the 16 volts fry the 13.8 volt electronics that are connected to it? :confused:
 

BammBamm said:
Just wondering, I have a 16 volt 15 amp power supply that has no use around my home but was thinking of mounting it to my work bench as a power source for mobile cb and car stereo stuff. Would the 16 volts fry the 13.8 volt electronics that are connected to it? :confused:
Click to expand...

Yupp . . . Fry City
13.8v to 14.4v is the correct range.

Maybe that power supply has an internal adjustment to lower the voltage. Some do; some don't. If it does; then use a volt meter on the output and turn it down to ~14.2v . . .
 
There is no guarantee that the power supply will fry electronic gear but it does make the likelihood much more so. A lot of 12 volt gear contain 16 volt capacitors and running it on 16 volts is pushing the limit pretty hard. On the other hand if that 16 volts is unregulated then the voltage will drop when a load is applied to it. If you can locate some 15-20 amp heavy duty diodes you can place them in series with the positive lead to drop the voltage a bit.Each diode will drop the voltage about 0.7 volts so three would be good and four would be great. Diodes that heavy are usually mounted to a heatsink however.
 
Thanks. I love this forum. If they would have had this 15 years ago I would have saved a lot of money on burned up and unneeded equipment.
 
Captain Kilowatt said:
There is no guarantee that the power supply will fry electronic gear but it does make the likelihood much more so. A lot of 12 volt gear contain 16 volt capacitors and running it on 16 volts is pushing the limit pretty hard. On the other hand if that 16 volts is unregulated then the voltage will drop when a load is applied to it. If you can locate some 15-20 amp heavy duty diodes you can place them in series with the positive lead to drop the voltage a bit.Each diode will drop the voltage about 0.7 volts so three would be good and four would be great. Diodes that heavy are usually mounted to a heatsink however.
Click to expand...

If I may add; a 25Amp 50VDC full wave bridge has 2 diodes that can be used, and much more easy to mount on a heat sink. I would start out w/one and add the second if necessary. Test under load for correct voltage.
 
best for it to be a regulated supply to start with the 16 volts will be hi for some equipment i have run alot of equipment at 14.5 with no issues i would think that your supply would be in a lower voltage range under a load but may not be stable if there is no regulator
this may help
Power Supplies
voltage regulator
http://en.wikipedia.org/wiki/Voltage_regulator
 
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