Ask Electronics

3325 readers

1 users here now

For questions about component-level electronic circuits, tools and equipment.

Rules

1: Be nice.

2: Be on-topic (eg: Electronic, not electrical).

3: No commercial stuff, buying, selling or valuations.

4: Be safe.

founded 1 year ago

MODERATORS

[email protected]

What devices should i look for to get a -30V power supply. (lemmy.ml)

submitted 4 months ago by [email protected] to c/[email protected]

4 comments fedilink hide all child comments

I've got a VFD display on board along with UPD16311 driver is made for negative voltage around -30V and i think so is display (i couldn't find any info on display) and I'm doing it mostly from junk parts. I want to know what devices could/should contain power supply for such voltage. I've tried -12V from psu i've got lying around but it didn't work. There's also a chance that display itself is damaged but there's no visual sign of it.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 12 points 4 months ago

You just need to be careful that the supplies' outputs are completely isolated from mains. Otherwise you'll end up with a lovely spark show.