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12v and 5v lights and a raspberry pi
thefox:
Wow, interesting video, thanks. The guy uses a 120w picoPSU. Do you think an 80w would be enough for my needs ?
JDFan:
--- Quote from: thefox on March 13, 2018, 07:06:30 am ---Wow, interesting video, thanks. The guy uses a 120w picoPSU. Do you think an 80w would be enough for my needs ?
--- End quote ---
Would depend on "Your Needs" -- How many 12V and 5V Amps does everything require at Maximum + a bit of Extra for safety ??
Figure as shown by PL1 - NovaGemCDR require 100ma per button so 2 would be .2 Amps of 5V -- The pi3 recommend 2.5A of 5V = so 2 novagems and the pi require 2.7A of 5V - JUst figure out what other items use what amount of 5V and add it all up then add a bit extra in case you add something else or decide you need to OC the pi which will require a biit more power and do the same for the 12V and you'll have an idea of how many Watts of power you need and thus know what size PSU ( and how that PSU separates the various rails ) is needed for "Your Needs" - We can only guess since we do not know exactly what you are using in your build so any answer we give you may or may not be correct !
DeLuSioNal29:
Forget the big power supply for 12v and 5v. Just buy this and wire them up that way. This one has both 12v and 5v. Yellow wires are 12v, red wires are 5v, black wires are ground. Your cathode light may even have molex connectors already on it. Completely silent and small solution:
http://amzn.to/2qnQybz
DeL
JDFan:
--- Quote from: DeLuSioNal29 on March 13, 2018, 01:37:44 pm ---Forget the big power supply for 12v and 5v. Just buy this and wire them up that way. This one has both 12v and 5v. Yellow wires are 12v, red wires are 5v, black wires are ground. Your cathode light may even have molex connectors already on it. Completely silent and small solution:
http://amzn.to/2qnQybz
DeL
--- End quote ---
PRoblem with that one is it only rated at 2A on each the 12V and 5V rails -- and the pi itself recommends 2.5A 5v so trying to run the pi and NovaGems off of the 5v portion is already pushing it over spec - then the 12V is also 2A so depending on how many 12V lights he is using may need more than 2A of 12V as well ( figure 2x 12 + 2x5 is only 34W total output which is pretty low ! )
PL1:
--- Quote from: thefox on March 13, 2018, 07:06:30 am ---Do you think an 80w would be enough for my needs ?
--- End quote ---
This looks like the manual.
http://resources.mini-box.com/online/PWR-PICOPSU-80/PWR-PICOPSU-80-manual.pdf
5V is rated for up to 6A.
"5VSB" is rated for up to 1.5A.
12V is rated for up to 4A.
As JDFan mentioned, we can't say for sure if it meets your needs without knowing exactly what your needs are, but it does look promising.
Scott