TransWikia.com

Is it safe to toggle a led strip powered with 12v ATX PSU line?

Electrical Engineering Asked on October 29, 2021

I connected a segment of a led strip (12v) to a line coming from a standard ATX PSU (12v line, of course). I just wonder if it is safe to put a toggle switch to turn on/off the led strip, or may be this really simple circuit requires additional components.
I should say the ATX PSU is actually powering a PC and I want to power also the led strip, and turn it on/off while pc (psu) in on.

One Answer

This should be fine.

  • Generally the +5 V or +3.3 V line is accurately regulated and the +12 V (and -12 V, if provided) are relying on the turns ratio on the SMPS transformer to keep them in proportion to the 5 V supply.
  • Watch your current. The 12 V rails were only designed for hard drive motors which are not high power. The PSU label should give you the limits.

Answered by Transistor on October 29, 2021

Add your own answers!

Ask a Question

Get help from others!

© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP