Thanks for the many good remarks
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
.
I did not explain much in my first post, but hoped that the pic was more or less self-explaining.
I improved the user interface somewhat, as can be seen in the new picture.
Space is very limited, therefore i can not add many more buttons.
I hope that the basic UI is intuitive enough to control a
triple lab power supply without reading a manual.
Most of the time i do not need more than +-15Volt @ 0.5A and 5V @ 2A,
and i do not have much space on the desk.
The accurate current display for each channel could replace
up to three external Multimeters, to save even more space.
Each channel voltage is controlled with one encoder.
If the encoder is pressed, the current limit can be changed (Xavier60
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
).
Button ON/OFF enables or disables all outputs.
Maybe pressing encoder x together with the ON/OFF button
could be used to enable/disable only channel x?
LOCK helps against unwanted changes.
Did not know, that this is needed before thinking about it.
TRACE chains channel +25V and -25V together.
The free encoder could be used to control current directly.
MENU opens a menu for not so often used things:
- help menu
- time constant for display averaging
- what to do in case of short-circuit
- some display configurations
- other things
Greetings,
Udo