PDA

View Full Version : A/D Converter overheat due to battery wires in close proximity?



jpc1105
03-01-2010, 11:39 AM
Im running a 14.8 volt battery with 30 Amp output for a motor and my basic stamp and speed controller wires are all in close proximty to the heavy battery wires going to the motor.

Ive been running my motor for a while, but then after recharging the battery, the signal began to jump around and now my A/d converter basically overheated a (expletive) load.

Do you think the high amps from the battery wire interfered with the analog signal coming in from my speed controller? ...which is a little force sensor.

If so, how do I isolate the wires? just more insolation?

Please help!

Thanks.

bill190
03-01-2010, 02:38 PM
Batteries can get to be quite warm when recharging. Wires should not get warm if you are using a large enough gauge wire.

Spiral_72
03-02-2010, 12:21 AM
If you are running that kind of power, I'd say it's likely. Can you put the electronics in a metal box and tie it to earth ground? At the minimum tie it to 0V.

Motors are very noisy. VERY noisy. I had a pencil sharpener next to my laptop once. When I sharpened a pencil the computer would go nuts and lock up...... motors.... they noisy :)

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"puff"...... crap, there went another one.