[time-nuts] Power Supplies

[Robert LaJeunesse]

Steve, you shouldn't need a schematic. Look for a resistor between the output + line and the pot that adjusts the voltage. Determine the value and add a shunt resistor across it that is maybe 10x the value determined. See if that drops it down enough. Adjust the shunt up or down to get the range you want. Also note that if this is a linear supply setting it for a lower output voltage range will increase dissipation at full load and possibly require better / forced air cooling. 

Bob L.

> Sent: Sunday, May 03, 2020 at 9:53 AM
> From: "Steve - Home" <steve-krull at cox.net>
> To: "Discussion of precise time and frequency measurement" <time-nuts at lists.febo.com>
> Subject: Re: [time-nuts] Power Supplies
>
> Has anyone found schematics for the Mean Well supplies? I have a couple of 15V 7A ones that will adjust down to 14.1 and I’d like to get them down to the 12-13.8 range. 
> 
> Steve
> WB0DBS