Message	Date	From	Subject
10096	2014-06-05 12:50:55	dl8ov	To All Who Assisted With My Power Supply Problem
Thank you! My problem was that I had a power supply with six different outputs but all of them were dead if there was no load on the 5V rail, anything less than an 18 ohm resistor meant no outputs. Normally I'd be willing to sacrifice the wasted watts as heat but since the object of the exercise was saving energy I decided to press on. With the help of the group I have now modified the supply so that the load detection and feedback signals work off the 12V supply rather than the 5V. As a result I can now replace a lighting transformer with a suitably suppressed SMPS and we get lower power bills. Now back to more interesting radio work. Peter DL8OV

Thank you!

My problem was that I had a power supply with six different outputs but all of them were dead if there was no load on the 5V rail, anything less than an 18 ohm resistor meant no outputs. Normally I'd be willing to sacrifice the wasted watts as heat but since the object of the exercise was saving energy I decided to press on.

With the help of the group I have now modified the supply so that the load detection and feedback signals work off the 12V supply rather than the 5V. As a result I can now replace a lighting transformer with a suitably suppressed SMPS and we get lower power bills.

Now back to more interesting radio work.

Peter DL8OV