CC BEC ,design flaw.

[BrianG]

Unless the zener was big enough to handle that kind of power, it would blow, and then your receivers and servos would get the full battery voltage again. Crowbar protection is not really the best solution IMO. And if the zener didn't blow, the BEC wires would likely fry.

lol, and there's a similar thread in the Traxxas forums about this very thing.

[What's_nitro?]

Originally Posted by BrianG

Unless the zener was big enough to handle that kind of power, it would blow, and then your receivers and servos would get the full battery voltage again. Crowbar protection is not really the best solution IMO. And if the zener didn't blow, the BEC wires would likely fry.

lol, and there's a similar thread in the Traxxas forums about this very thing.

Just have the zener trigger a larger relay that will handle the current. Or, put a fuse in-line with the CCBEC power leads and put a relay in place to short those leads after the fuse. It will blow the fuse and then the BEC shuts off.