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Thread: negative ground systems?

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Old 05-20-2005, 12:13 AM   #1
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Default negative ground systems?

You know, like the 12 volt negative ground on your real car? I was poking around with the search button and could not find anything but has this been done yet? The thought came to me at work while I was planning out my tuber and it seems like it should work.
Right now I have some issues with glitching I believe is due to running too much juice through my super rooster to power the dual 645mgs, motors, and reciever. On large 1/4 scale servos they recomend that you run a power line directly to a battery so you dont pull a bunch of power through the RX but then it hit me, why not do that for everything? This would give you 7.2 volts for the servos and RX without having to pull that power through the speed control ( I know I know I could just run an RX pack but I am trying to cut weight and space).
The motor wiring would remain the same
Am I just being stupid after a long day at work or does this seem like it would work to anyone else?
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Old 05-20-2005, 12:31 AM   #2
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1/4 scale servo and rx pack question

read this thread and post 6, does it mirror what you are thinking about?
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Old 05-21-2005, 11:42 AM   #3
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I used this configuration for a while. I eliminated the Rx pack and ran the wires to the main 7.2 volt pack. The high currents do not go through the receiver.

full wiring harness?

Here’s the custom “Y” cable I made. The servos will draw all their current straight from the battery and bypasses the small circuit lands on the receiver’s (Rx) printed circuit board.
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Old 05-24-2005, 06:32 PM   #4
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thats how i run my electronics and it has been flawless
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