Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Yeah the capacitor life expectancy is what had me worried as the caps in such a circuit seem to be worked much harder then in any transformer based solution. But since I gave up on space saving (the method I was going to use for a universal mount fell through as the power supplies it would have...
Thanks for the replies guys. I realize that there's going to be current drawn either way, I just wanted to minimize it and save space as much as possible. Though due to some newly discovered facts I no longer need to minimize the size as much as I originally intended. I've decided to just slap...
I know this isn't a very recent post, but practice provides the best solutions so I thought I'd share.
In such a situation, my solution is to use a hot-air station in tandem with my desoldering station. Before you do anything, use a soldering iron to add a decent sized solder-blob atop the...
Hey guys,
I'm building a project that would require a small powersource that supplies constant 12V to a relay that is switched via an optocoupler from another circuit. Technically something like the standby 5v in PC powersupplies.
I have been looking at transformerless solutions, the so...
That's weird, it works fine for me.
It's quite possible that the 7805 blew, but the problem isn't with that. I'm just not getting the DC voltages that I would expect to have and I have no clue why...
- - - Updated - - -
Followup:
So I sat down and started metering things thoroughly. It seems...
Hey guys, I'd like to ask for a little help regarding building a dual voltage powersupply.
A little background:
Since I have tons of arcade parts lying around, I decided to do something constructive and build a doorbell from some old pinball chime units I have using an AVR. I decided to use...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
