Electronics Forum | Wed Feb 07 08:41:10 EST 2001 | dliechti
I have to design a power supply which converts 220V AC into 5V smothed DC. It has to be very small, so it shouldn't have a big transformer. Has somebody a scheme of a circuit? Thanks
Electronics Forum | Sun Nov 27 16:53:39 EST 2016 | ttheis
Our UP500 has been running great for a few months then the AC/DC 5/12/24V power supply stopped working and the PC could not communicate with the cage. The PC screen also got very noisy. We replaced the power supply with a used replacement and the ma
Electronics Forum | Sat Jul 24 06:00:50 EDT 2004 | zlatkon
I need to build regulated power supply 0-30V 0-20 Amps. The only solution possible for minimizing the thermal loss is to use triacs on the secondary Trafo side in order to cut the sine for low voltage output and great current. (like 5V, 20A). Please
Electronics Forum | Sat May 03 14:01:21 EDT 2014 | jyo_409
Could you please share me what are the possible reasons for the DC DC Converter failures. Application of the subjected DC DC Converter is to separate the power & control ground. We are using DC DC Converter in regulator O/P, even though converter is
Electronics Forum | Wed Dec 23 12:24:37 EST 2020 | ilavu
1. Palm down the GSM and open the safety cover to check input voltage +12VDC (at KDC2 3PL pins 2 to 3) and output voltage +5VDC (at KDC2 2PL pin 4 to 3) at the DC/DC converter. The DC/DC converter is located inside the control panel assembly ("Nose c
Electronics Forum | Wed Dec 23 12:53:59 EST 2020 | ttheis
Thanks for the detailed information. I have a spare dc/dc converter on order to try swapping them. Another note is all dc power is cut out by the pdp.ps1, not just 12vdc. 24vac power remains.
Electronics Forum | Fri May 26 21:25:52 EDT 2006 | mika
Yes we do place "big and heavy" SMT DC/DC:s on most of our board's. Please tell us what brand it is or at least what the package look like?!? For instance we place a different numbers of "heavy" DC/DC converters (40x20mm & 45x25mm) that has the pick-
Electronics Forum | Thu Jul 17 08:36:21 EDT 2008 | steveliu
How did you convert the touch screen to the monitor and mouse combination? We had the same problem two years ago and tried to do the conversion, but ended up with a new DC/DC power supply card.
Electronics Forum | Thu Jul 17 09:21:29 EDT 2008 | proy
What did the DC to DC power supply card have to do with it, and where was it in the system? Pete
Electronics Forum | Thu Jul 17 17:20:39 EDT 2008 | steveliu
The screen we had is a Planar EL7768MS. There is a small DC/DC power supply board attahced to the back of the touch screen. That PS board was toasted and caused the failure of the screen. Steve
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