[Milsurplus] power supply question

[mstangelo at comcast.net]

Jack,

There may be another issue to contend with, Power Factor Correction (PFC). Some countries specify the power factor must be close to one. The corrective circuitry may not handle higher frequncies. Cheap switchers sold in this country do not have this corrction. Do the switchers you intend to use specify anything about power factor?

It would be nice to have a schematic of the power supply.

Mike N2MS

> On 07/23/2022 11:38 AM mstangelo at comcast.net wrote:
> 
> 
> if the input rectifies and filters the input to produce a DC voltage for the chopper circuit is may work. 
> 
> 
> The modern input revtefiers should work at 400 or 800 Hz. Any input RFI filtering ma be an issue. Do you have a smps to test witj?
> 
> Mike N2MS
> > On 07/23/2022 9:45 AM Jack Antonio <scr287 at att.net> wrote:
> > 
> > 
> > 
> > 
> > I'm not trying to make 400 or 800 cycle, I'm wondering if there is any
> > problem in running
> > one of these switching type supplies *from* a 400 or 800 cycle
> > source. Is there some
> > limiting factor that restricts it to a 50 or 60 cycle input?
> > 
> > 
> > Jack Antonio
> > WA7DIA