Higher pinions = safer MMM's? Or no? Someone's lying....

[lutach]

Ok, so I got this thing inside my head that's driving me nuts. I have a M.Troniks ESC (Sorry Patrick, I know this is Castle's section) the truck one and it came with 3 diodes to add to each phase and then it went to the negative battery connector. Now what are they really for?

http://i206.photobucket.com/albums/b...p/DSCF2201.jpg (Thanks linc for the pic)

[BrianG]

Originally Posted by lutach

Ok, so I got this thing inside my head that's driving me nuts. I have a M.Troniks ESC (Sorry Patrick, I know this is Castle's section) the truck one and it came with 3 diodes to add to each phase and then it went to the negative battery connector. Now what are they really for?

http://i206.photobucket.com/albums/b...p/DSCF2201.jpg (Thanks linc for the pic)

From the way they are hooked up (cathode to ground), they look like they would clamp the EMF spikes to whatever they are rated for. I would assume they are similar to the TVS devices in operation, except on the motor wires instead of the power input. Another possibility is to add/supplement the built-in diodes in the FETs (older FETs may not have the diode integrated, I dunno).