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1 answer
49 views

making a long lasting battery pack for 24V/0.5A

I brought a stereo equipment from Japan that uses a wall-wart set at 24V/0.5A. I would like to replace the PS with a long-lasting battery pack, but all I can find are 12V/5A batteries, or 24V/5A. I do ...
Reimar Bruening's user avatar
0 votes
0 answers
233 views

Running a 3D printer, LED strip, and fan from a 24V PSU

I am working on a project to design an enclosure for my 3D printer. The enclosure is designed, but I am looking for some guidance/suggestions on the electrical side. I plan to add a few strips of 24V ...
Learning4Fun's user avatar
0 votes
1 answer
1k views

24V optocoupler with 12V?

I recently picked up a "24V Voltage Level Current Converter Module 80KHz 1-Channel Optocoupler Photoelectric Optoisolator 12V PNP NPN Signal Converter PC817 Optocoupler" Can I supply this ...
ABeardedItalian's user avatar
1 vote
2 answers
70 views

Normally Closed, 24V DC, 1/4 NPT Female, 1.4 Cv solenoid valve power supply

I have a solenoid valve of Normally Closed, 24V DC, 1/4 NPT Female, 1.4 Cv, 500mA max current drawn. Can somebody verify the power supply requirement. would this be an ideal power supply unit for the ...
Nandakumar Menon's user avatar
0 votes
1 answer
97 views

Connecting 2 identical led RGBW controllers with 12V led strips same length into a 24V Power supply [closed]

Ok, some bad decisions took place and now i am stuck with no money and: 24V 8.33A power supply with 2 channels. Magic Home 5V-12V-24V RGBW wifi Controller 192W max (got them from here) 15m of 12V ...
Fero's user avatar
  • 3
0 votes
1 answer
86 views

24V 3D Printer - power ratings

I have a 3D printer at home and looking to improve some parts. The PSU on the printer has no labels so I'm not certain what it's doing - but the 3D printer's spec. sheet says it's 600W peak and it ...
en_passant's user avatar
0 votes
1 answer
570 views

Two server powersupplies in a row dangerous?

I have two server PSUs from HP which can output 12V with 1200W (HP DPS 1200.) My goal is to obtain 24V by chaining the outputs of the two units. I have modified one of the PSUs so that the negative ...
Beny Benz's user avatar
0 votes
1 answer
1k views

LED driver putting out more voltage than rated?

The Background I bought a 200W magnetic LED driver with hopes of replacing the 40W Philips-supplied driver that came with my set of Hue Lily outdoor lights. Each fixture requires 8W at 24v. This new ...
jasonseminara's user avatar
0 votes
2 answers
60 views

Asymmerical measuring limits

I would like to know your perspective on the following: When measuring 24VDC both the lower test limit (LTL) and the upper test limit (UTL) are defined by either product, safety or 'common' ...
Weaverworm's user avatar
-2 votes
3 answers
476 views

How to determine the maximum power required by given devices? [closed]

I need to power 4 devices with these power input specs: ...
Artur Kedzior's user avatar
0 votes
1 answer
272 views

Connecting two PSU's in series

Good day, I found this question asked before (not exactly this) but the answers were wrong (at least at some level). So i have two 300W PSU's (different manufacturer so different schematics too). I ...
avuthless's user avatar
  • 261
0 votes
2 answers
1k views

Calculating peak current of solenoids

I'm a electronics newbie, and I'm making a project with 8 24v solenoids playing percussion quickly. I want to power these all with the same power source, so I'm being careful. This is similar to ...
pepsimxm's user avatar
2 votes
2 answers
1k views

Can I use a 12V 70A source to convert/boost to 24V 5A supply?

I have a self built custom made computer that is using a Ultra X3 1000 watt power supply. Over the years I have been reducing the power needs by adopting more energy efficient hardware. My computer is ...
SkOrPn's user avatar
  • 21
1 vote
1 answer
474 views

24vAC to Multiple DC Supplies

I am trying to put together a power circuit which will take a 24vAC supply to the following DC supplies. +24vDC (700mA) - Powering DC relays and OpAmps. +5vDC (500mA) - Powering MCU, Ethernet etc. +3....
StuntMonkeh's user avatar
15 votes
5 answers
51k views

24V 3A from ATX power supply?

I am looking for a cheap way to get +24V DC max 3A from computer power supply. I prefer easy soldering solution like DIP, and standard components that do not need to be purchased over internet. Any ...
avra's user avatar
  • 1,892