Help with Existing Circuit Design Power Supply

[rocketrider]

I have an existing circuit that is powered via USB and should failover to battery. Everything works fine on USB but
even with a 12V 9aH or larger battery, the board will lockup or reboot during heavy power draw. If USB power is
lost, the board reboots as well.

There are some other changes I'd like made to the board as well but the power supply issue is the main issue
now. If you have experience designing power supplies with backup power, reach out to me.

[maxpayne]

I have a vast experience designing DC Dc supply. I can also suggest you improvements in the design if required.

Let me know if you are interested.

[rahandford]

I would be willing to help you.
If interested please contact me rupert_handford@mr3design.net