hairlesshippy

My Feedback: (1)

Hi everyone..

I have a Hyperion 720i charger that requires up to 15v DC input.

New power supply sold as 15v is actually 15.3v

when I hook everything up the charger says input voltage too high.

what can I do to lower the output voltage of the power supply .30v

Thanks in advance!!

HH

jetmech05

I just read through the data sheet and user manuals...the only thing I saw for the 720i was to hook up to a car battery 12V.
So there is a couple of things I'd try.
1 hook up to a 12V source and see if the unit operates on 12V
2. Look at your power supply and see if there is an output adjustment.
I can't believe that .3V makes that much of a difference, usually you'll have a 10 percent tolerance. At 15V that would be 16.5V.....
If you're feeling brave you can put resistors in the output circuit...but the by product of resistance is heat.....

KW_Counter

There should be a way to adjust the voltage.
If that doesn't work then putting a diode in series will drop the voltage .7 volt.
Make sure it can handle the current being drawn.

Good Luck,
KW_Counter

eagle1945

car 12v batterys are close to 15v at full charge. a simple rectifier filter circut should reduce the output voltage.sorry i dont have schematic for you.

Luchnia

My Feedback: (21)

It depends on the power supply. Some of them do have internal adjustments. Check online search and see what you find.

rlipsett

a simple diode will drop the voltage between .6 and .7 volts in series to charger.