Automatic Switching with Power Supplies. Looking for Guidance.

A

Thread Starter

AndrewGorman1

Hello.

How would I start automatically switching between two power sources. Also, I don't want any drop off from the switching.

Any text or guidance would be great.

Thanks,
Andrew
 
Hello.

How would I start automatically switching between two power sources. Also, I don't want any drop off from the switching.

Any text or guidance would be great.

Thanks,
Andrew
Hi Andrew,

I am an employee at Texas Instruments and author of this application note which may guide you in the right direction. You can achieve it a number of ways using combinations of diodes, MOSFETs, partially integrated ICs or fully integrated ICs.

Basics of Power MUX

Some phrases which may be helpful during your search are "Power MUX", "seamless switchover", or "diode mode" type of switchover to prevent voltage dip during the transition. What you want to avoid is "break before make" schemes because that will lead to voltage dip.

Best of luck!

Sincerely,
Alex Triano
 
C

CarrieBradson

@AndrewGorman1

It would be helpful to know what your application is. Could you give some guidance?
 
Top