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 | 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 | Fri Jan 29 10:53:13 EST 2010 | jeffharley
There are pots on the board in the power supply to adjust the voltages after the machine is powered up. The location of these pots are in the munual supplied with the machine
Electronics Forum | Tue Apr 30 10:03:31 EDT 2013 | mmjm_1099
Got it powered back on Friday.... We did check the UPS (power-supply)and indeed it was bad. So we referenced the manual and found you can bypass the UPS all together. So we just directly plugged the machine past the UPS. Well the machine is running b
Electronics Forum | Mon Apr 29 00:29:11 EDT 2013 | aemery
If you have a UPS on your machine there should be auxiliary contacts in the main breaker switch SW 1. These contacts tell the UPS if the main rotatary switch in turned to on or off. If the rotary switch was set to off the UPS knows not to turn on i
Electronics Forum | Mon Sep 14 22:59:42 EDT 2020 | kylet
Looking to power up this board with 3v coin battery. I've tested this board with it and it works but to solder this on or make something that has clips for the attachment to power this up. Positive and negative connections are the circles on the inne
Electronics Forum | Sat Sep 19 21:50:19 EDT 2020 | davef
Use your 3D printer to make a "case" for your board that will hold the battery securely against the contacts on the board.
Electronics Forum | Wed Nov 01 23:59:23 EDT 2017 | lkdhde1
F5HM power supply unit 00375503-02,consion document which I have is not suitable since this is new power supply unit, want to find out suitable document
Electronics Forum | Wed Feb 03 18:29:46 EST 2010 | mika
4.85 V - 5.2 Volts. That is on the computer power inlet, Not the on the power supply. /Best Regards
Electronics Forum | Mon Jan 25 17:13:53 EST 2010 | bing007
I am working on a vcd 8 with a problem of loosing the 5 volts supply. We have fitted a new supply that also provides the 15 volts. When we remove the connector on the power chassis for the 5 volts the power supply shows OK. When fitted the 5 volts is
