Re: [CAD_CAM_EDM_DRO] Re: Question on Power Supply

turbulatordude wrote:

>Looking at it in reverse, 30 vDC divided by 1.414 is 21 volts. so you
>need to find a transformer to handle something less than 22 volts. 16
>volts is common with doorbell transformers. Three 6 volt units will
>give you 18 volts. a 6 and a 12 will also give you 18 volts.
>
>
>

You can also buy a common 36 volt center tapped transformer. Treat the
center as common and you get two 18vac ends. Connect these via diodes
and a filter cap to get 24vdc. The diode bridge is a different
configuration, make sure you get it right or you'll destroy the transformer.

Dave