[Cjmovie]

Originally Posted by ZInventor

don't you mean lower?

unless there's some fancy circuitry, i don't think 8 volts can magically become 12...

-Z

I do believe the 12V is a boost supply. So is the 24V line (Yes, there are 24 volts coming from the PD - this goes to the cRio.)

Doing conversions of voltage is common in circuitry. It's much easier in an AC circuit, but entirely possible with some ingenuity with a DC circuit. Most ways, however, do include converting it to a high-frequency AC circuit and filtering.

The 5V line is not protected, though. I know that if battery drops below 5V, it will track that.

If your custom circuit requires a solid 12V, I recommend you add filtering and boosting to your circuit design. I do not believe it is legal to hook custom circuits up to anything except the PD through a 20 amp breaker. Don't quote me on this, however.