Re: 110V Isolation Transformers

Hi David

> > My Servo drivers are transistor based. So all I need is 150 VDC to get
> > them going. How I get it is uniporttant to the drive.
>
> This is actually easy. A 1:1 isolation transformer, with 120 in, 120 V RMS
> out, run through a full-wave rectifier and capacitor-input filter, will deliver
> about 176 V DC out.

He in the UK, 110 Volt isolation transformers are wired 55-0-55 with the center
tap earthed. If you use one of these make sure that earth connection won't
cause problems. I found out the hard way when I borrowed one to test a monitor,
as soon as I hooked up my scope, things went bang. It is amazing how much smoke
they can get into such tiny packages.

Regards, Paul.