this post was submitted on 24 Mar 2024
41 points (90.2% liked)
Ask Electronics
3316 readers
1 users here now
For questions about component-level electronic circuits, tools and equipment.
Rules
1: Be nice.
2: Be on-topic (eg: Electronic, not electrical).
3: No commercial stuff, buying, selling or valuations.
4: Be safe.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
You generally can't just connect two power supplies together. Usually you'll want some sort of power path style controller.
You'd want to check the output with an oscilloscope.
Thanks i Will make sure to connect only One at a time ... ๐๐ป
Cheap power supplies being back-powered from the output will die. By connect together I mean put in the same circuit. Not use at the same time.
You're possibly powering the other power supply through the feedback resistors, ESD diodes, etc. You really want a controller that can share between the two sources or just 2 diodes if you can take the voltage drop
Oh now its clear i dont have a special controller neither the space to fit It inside the headphones so i will go the diode rout, if i pay attention not to plug them both in at the same time could I use only one for the wireless circuit ? How do I know if I can take the voltage drop ?