i am debating whether to obtain a cheap high present 12V power supply together with a voltage regulator or an high-quality high present 5V strength supply because that my project. Ns need about 50W total at 5 volts, i beg your pardon I can do in the two ways listed.

You are watching: Can i use a 12v power supply on a 5v

I can acquire a 5V 10A strength supply for around $24. I can obtain a 12V 5A strength supply for around $10. Nobody of them include shipping, they both have actually 5.5x2.1mm plugs, and also are both indigenous UK Amazon.

However, I currently have a great 12V 6A (6A not 5A) power supply laying around, i m sorry I can use no problem. Have the right to I turn among these basically right into a 5V 10A supply? It can be higher than 10A, yet my concern is just how much current I would lose in heat and also conversion. How much would among those regulators cost?


6A strength Supply. The just thing necessary is a "good" Step-Down Converter (aka: Buck-Converter). Because, her existing it is provided can deliver up come 72W that power, through the minimum efficiency of around 70% that Buck converter, friend can acquire 50W in ~ the output. And as the required voltage is 5V and also input obtainable is 12V, you require "Buck" type DC-DC Converter.

You can construct it your me or purchase ready-made. Simply google them!


This is exactly where a Buck converter comes into use. Its accessible in market with wide variety of input - calculation DC Voltage and also Power. And they have usually an efficiency of above 80%.


Thanks because that contributing response to electrical Engineering stack Exchange!

Please be sure to answer the question. Administer details and share her research!

But avoid

Asking because that help, clarification, or responding to various other answers.Making statements based on opinion; earlier them increase with recommendations or an individual experience.

Use MathJax to format equations. MathJax reference.

See more: What Is The Electronic Configuration Of An Antimony Atom (Sb)?

To learn more, see our tips on writing good answers.

post Your answer Discard

By clicking “Post her Answer”, girlfriend agree come our terms of service, privacy policy and cookie plan

Not the answer you're looking for? Browse other questions tagged power-supply or ask your own question.


site architecture / logo design © 2021 ridge Exchange Inc; user contributions licensed under cc by-sa. Rev2021.10.19.40496

Electrical design Stack Exchange works best with JavaScript enabled

her privacy

By clicking “Accept every cookies”, girlfriend agree ridge Exchange have the right to store cookie on your machine and disclose information in accordance through our Cookie Policy.