View Full Version : Power-One Linear supply - how hot should they get ?

2006-05-21, 06:03
Just made up my Power One PSU and am surprised how hot it gets, even with the SB in standby. I have perhaps shoe-horned it into too small a box, but it is well ventilated, and I have ensure the heat sink buts up against the steel case. Surprisingly it is the transformer that gets really hot, rather than the regulator. Should I be concerned ? Is it worth fitting a mains power off switch for when not in use ?

One word of advice - don't connect the -ve output to earth as I did. All sorts of wierd behaviour.