Electronics > Projects, Designs, and Technical Stuff
Simple Lab Power Supply User Interface Help
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udok:
I would like to build a triple lab power supply,
and need some help with the user interface.

It should be a compact design with a decent 3.5 inch TFT,
about 11 cm wide and 17 cm high.

The electronic is not special, basically a linear regulator with
a precision reference and 16 bit DACs.
It should have a USB interface for logging and
a low current range for measuring standby currents in
the microamp range.

I build a first 3D cad model, and attached a picture.
Some not so often used features could be reached with
the MENU button.

Do you like the user interface?
Any ideas for improvements?

coromonadalix:
Do you want people to design it  for you ??  you're going on a hard route here ??

You have already built 2 or 3 chanels psu's, simply stack them and connect them, usb, lan, rs232
BravoV:
Take your time browse thru almost 500 posts of various bench PSUs -> Forum members bench PSUs
xyrtek:
No idea how to answer your question, its only a pic without much details. I can tell you how I would like it to be.

Bench space is a premium, equipment designed to be stackable is preferred.

Buttons size and ergonomics is important.

Make it intuitive to use.

Whatever you do have dedicated buttons for V and I, one encoder for the both is frustrating at best.

Be mindful of encoder steps and button size, some combinations are just plain awful.

Implement acceleration on controls that requires it.

If you have to click more than twice to get to a menu you have failed.

Implement a control panel lock, this is a must.

Be sensible with colors and fonts, actually be very sensible.

Something that none takes into consideration,  we all don't have the same vision and as we get old we all wear glasess...be mindful and avoid filling that tiny display with a gazillion of tiny useless info.

Don't try to have all the features that the cool kids rave about, get the fundamentals right.

The very obvious but easy to forget, display target and actual output visible at all times.

At the very least know I didn't cover 1% of what it takes to make a successful product.

Hope this help.









JuanGg:
If you are the one using it, no one better than you is going to know what you like. I'd personally have a separate button for each chanel and V and I encoders, that may have secondary functions when other buttons are presed. Anyways, look at examples of PSU UIs and do as you wish.
    Juan
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