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


If they have remote sensing, you can do stuff with that too.  Else, trace out 
the cct around the voltage setting pot, there will probably be some fixed 
resistor at each end, one or other will move the high or low point as you need. 
 (Lower values = greater adjustment range.)

BUT!  Note, that though you can usually lower the output voltage, you will not 
get any extra current as that is limited by the transformer design and 
capabilities.

Similarly, if you raise the output voltage, you will need to de-rate it's 
current output ability, so as not to exceed it's power capability.   Don't go 
too far from nominal (especially lower voltage) as the control loop regulation 
may misbehave under some load conditions. 

In any case, 14.1 is OK for most "12V" kit, especially anything that is 
intended for use in a vehicle, where the engine running battery voltage can 
often be up near 15V with modern vehicles and battery chemistry.

73.

Dave G0WBX.


On 03/05/2020 17:00, time-nuts-requ...@lists.febo.com wrote:
> 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

-- 
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software:


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