Re: [CAD_CAM_EDM_DRO] Re: QUESTION ABOUT SERIES OR PARALLEL ON STEPPER MOTORS - ref post 52721

Jeff Goldberg wrote:

>I thought I was understanding this and all of a sudden I'm confused again.
>I thought that the ratio of DC voltage across the bridge rectifier (across
>the cap) was 1.414 times the secondary AC voltage of the transformer. For
>example,
>
>My two tap combinations assuming my line voltage is 115 volts:
>
>Primary Tap Secondary tap Measured secondary voltage X 1.414
>
>115 volt AC 44 volt AC 44 volts AC X 1.414 = 62 volts DC
>
>or
>
>105 volt AC 44 volt AC 48 volts AC X 1.414 = 68 volts DC
>
>
>Am I wrong in the above?
>
>

Well, one possible problem is running 115 V into the 105 V winding of
the transformer.
It may overheat. (If the transformer is designed for 50/60 Hz use, then
it will have enough
margin to run 9% over rated voltage.) Otherwise, this all looks OK to me.

Jon