macnjam

All, If one was to use a fuse between the power (7.2v) and your electronics, what would you use? I am looking for a way to protect a Clark board for example. Thanks, Joe

Darryl Usher

I use a 10 amp because I had one, inrush blows a 3 amp, I don't remember the name but they
are in auto stores. They have two 1/4" spades and I used insulated female spades on the feed wire.
Darryl

bowlman

You want something like this http://www.robotmarketplace.com/products/0-FH16.html

Thanks
Jimmy

macnjam

Thanks guys. I was planning to use one of these with a 10 amp fuse. http://tinyurl.com/ms7ww27

Sounds like that will work...

Oracus

You would need 1 for each motor.

mcovalsk

Joe the fuse is for protecting against a fire in case of a short circuit. You will not protect the board in any way. If some FET blows then the fuse will work but the FET will blow anyway. Usually the transistors get opened and nothing more is damaged.
You should have to use a fuse to prevent fire in case few cables get together making short circuit.

tomhugill

Im not sure I agree with this, if you put a quick blow fuse between you battery and electronics then you should be able to protect it.

Oracus

Most mosfets "blow" from overheating

mcovalsk

The FET blow very fast mostly because they come hot or just because the draining current was more than the FET could drive. So there is not a fuse that can avoid this. The fuses are used to prevent more damage when something fails not to avoid the fail itself.