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View Full Version : Schottky Diode Questions?


F1Junkie
07-14-2003, 12:43 PM
Hello!

I have a couple of questions about Schottky Diodes.

Now, I understand that they help reduce spikes in the motor and help keep the motor cooler under high load conditions.

I have a trusty Tekin G-10. Now in the manual it says NOT to install a Schottky diode on the motor, as they say there is one installed in the speed control. But my question is, could installing something that will help the efficiency of the motor be bad? I remember an old Novak 410 M5 that I think had a Schottky diode installed in it, and also that putting another one on the motor wasn’t such a bad idea… So if any of you have any advice for me about any harm in installing another Schottky diode on a Tekin G-10, I would greatly appreciate it.

Here is another thing. There is an electronics store nearby that sells Schottky diodes. Is it absolutely crucial to get one with the same numbers as the ones the RC companies sell? Or is it like the big capacitors we find with the ESCs, big is good up until a point? I plan on joining them in parallel like some of the big racers have been doing since I plan to run a pretty quick motor in my sedan soon.

Would any harm be done to getting a Schottky diode that is SLIGHTLY larger than say a regular Novak one? Is there anything important I should look for on the label?

Sorry for my ignorance, I’m just not an electronics person….

Thanks

Dave

TOMC2002
07-16-2003, 04:47 PM
installing a Schottky Diode onto your motor aswell will do no harm what so ever, the only way it could would be if your speedo was a reverse but it isnt so that doesnt matter.

highster
07-16-2003, 07:42 PM
The problem with using just any off of the shelf diode is, the transient time is normally not fast enough. i have researched this a good bit, i have one diode that is a novak exact replacement, i was selling 2 them on ebay for $3.00 with free shipping. They other thing is, the diode helps improve braking by taking voltage away from the esc, there by lower the heat build up in the esc, therefore making the esc work better. As for keeping the motor cool, I really haven't heard that theory before. If you need some, e-mail me.