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 | Thu Nov 11 17:49:11 EST 2004 | pdeuel
We are having a problem with our AP-24x printer. When the vacuum motor spins up we get a 60 hz buzz into the DC drivers for the forcers and the stencle wiper. We also indicate a main power drop from 115 vac to 80 vac. The vacuum motor checks out good
Electronics Forum | Tue Jan 22 14:11:49 EST 2008 | stepheniii
"The following additional exemption grounds are defined by DTI (partly referring to the WEEE Directive): � Spare parts for the capacity expansion or upgrade of EEE placed on the market before 1 July 2006 � It forms part of equipment not included in p
Electronics Forum | Thu Sep 26 15:34:46 EDT 2002 | mustard
i Know its possible cus i read that it has been done by several people but i am after finding out how to do it for myself. I want to wire up a playstation to (hopefully) a DC jack so when i need 240V A/c to use it i can simply plug it in and likewis
Electronics Forum | Tue Jan 22 15:54:10 EST 2008 | patrickbruneel
Stephen good observation It�s a spelling error it should be �more� instead of less. Like Dave said �[Too bad they can't afford a spell checker, eh?]� Technically correct is all equipment requiring a power source of more than 1000V AC or 1500V DC ar
Electronics Forum | Fri Oct 28 04:56:12 EDT 2016 | lilybell
I read a few posts here about resistor in led applications. The thing is, the resistor has clarified as this shows:was always use with a power source delivering a higher forward voltage than the led could tolerate(ex: a 9volt battery hook up to a 3w
Electronics Forum | Sun Sep 02 09:06:42 EDT 2018 | davef
Cold resistance between the tip of the tool and the ground reference, tip current leakage, and tip voltage. per ANSI ESD STM 13.1 J-STD-001 Rev G, Appendix “A” Guidelines for Soldering Tools and Equipment: A-2 BENCHTOP AND HAND SOLDERING SYSTEMS Se
Electronics Forum | Thu May 11 04:23:50 EDT 2000 | Earl Moon
Hey folks, I'm on your side, as I said many times in this string. To end it, from my point of view, I will offer the following diatribe with which I responded to one of you whom I respect very much - Dave F. This is my last say on the subject and I
Electronics Forum | Tue Aug 23 03:29:37 EDT 2022 | samhe
I received a buck-boost DCDC board with an optical sensor from NextPCB, so I mounted the components and measured the efficiency. Table of contents Board received from NextPCB Solder paste printing Mounting of parts Reflow operation check Attaching
