Quote:
|
Originally Posted by Matt Attallah
When do they blow for you? What where you doing when they failed? High amperage draw or just some 'fun driving' out-n-about with the robot....
|
Oddly enough nothing in particular. One on our wench blew as we were doing a systems check before it went into the crate on the ship date and pulling the wench cable out by hand. Luckily, only one blew during actual competition, so that one on a drill was probably stressed, but not unusually so. It wasn't during a pushing match.
We didn't have any problems with victors we'd rebuilt, so I suppose it could have been a bad batch. I found it interesting that all the FETs would be burned out, but that may have been because we weren't noticing when just one FET went and only recognized it when power to a motor was gone completely after the remaining FETs were overloaded.