Electronic techie question?? - RC-Monster Forums

JERRY2KONE · **Electronic techie question?? -** 01.24.2009, 01:01 AM

OK so I am getting ready to complete one of my Maxx projects, and what I have setup for this one is a dual Dewalt 970 V-Twin power plant. My gearing is 48T(pinion)/65T(spur), and I also have 32T pinions with a Novak superduty ESC. It is going to be installed on an RCM EXT chassis, an RCM EXT suspenssion set, with RCM hybrid diffs, hardened HPI gear set, custom RC Alloy driveshafts, with HPI Beadlock wheels. All driven through a two speed (all metal) E-Maxx tranny. This thing is going to be a monster. The question I have is this.

In order to keep the high frequency noise down on the motors it is suggested/required that you install three CAP's on each motor, right? My concern is about the size of those CAP's. Is there a specific CAP size/level that is required by the size of the motor? What I have on each motor right now is 3 CAP's labled with a (1) on them. One cap between the (-) connection and the can(ground), one between the (+) connection and the can(ground) & one between the (+) & (-) connections. So is that sufficiant, or am I doing something wrong? Will these CAP's be ok for this scinario, or do I have to install something smaller? I would like to avoid frying anything if I can help it. I know BrianG or one of the other masters out there must have the skinny on this subject. Any assistance would be greatly appreciated. Thanks guys.

BrianG · 01.24.2009, 01:17 AM

Those caps are fine. They are non-polarized so it doesn't matter how they are hooked up. The 1 probably means 1uF, which is fine. It's just to help reduce high frequency EMI.

JERRY2KONE · **Thank you sir. -** 01.24.2009, 01:30 AM

Quote:

Originally Posted by BrianG

Those caps are fine. They are non-polarized so it doesn't matter how they are hooked up. The 1 probably means 1uF, which is fine. It's just to help reduce high frequency EMI.

I kind of thought so, but just wanted to have a PRO give me the thumbs up before I burn something up and have to post up a horrible result thread. Plus I know this is one of those things that may help another member with their setup along the way. I really cannot wait to post up a thread showing how this setup works out. This project has been a long time in the making, and I have been very careful in making sure that things are on the up & up. SO I did not want to take a chance on something so small and end up regretting it. Thank you once again BG for the help and saving my butt.