Can I Use A 12v Power Supply On A 5v
Camila Farah
6v is only 20 off.
My question is this. The big unknown that steve tried to point out is. Each lm1084 is rated for 5a output. Usually the 12v side is connected to an arduino s barrel jack.
Arduino mega 2560 and 32x64 rgb led matrix powered by the 12v 5v power supply. You can use this stepdown 12v to 5v converter dc circuit in combination with another circuit across the output of zener diode with a 12volt battery as an input. Braid the wire and insert into a barrel jack connector. If you are talking about an ac adapter then using a 9v or 12v adapter where 5v is required is not a good idea.
When a transistor in the mouse board turns off the red color it must stop current flow and withstand 12 volts from the led sections. Based on the same schematic i drawn if i use a 5v led strip instead of 12v and simply replaced the mouse s led that would work right. For a device requiring dc in 5v 500ma. But when i am using a 5v 1a charger the charger heats up fast.
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Can i use a 12v 10a 120w power supply and 5 lm1084 voltage regulators in parallel to covert the 12v to 5v. Approximately 5v is obtained across a zener diode. You could use a 5v to 12v converter to run the leds https. The 5v output is used for more power hungry loads such as the the rgb led matrix or a few meters of addressable ws2812b apa102 etc leds.
I will be using 13m and so i need a 13 9w 117w power supply that can provide 23 4a at 5v. Also note the ma rating. Yes you can run a 4 3v device with a 5v power adapter as long as the amperage of the 4 3 volt device is under the amperage capacity of the 5 volt adapter. I have a 12v 700ma specified item i was using a 12v 1000ma power supply for 240v but it would get incredibly hot to touch.
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