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Motor Capacitors
by Donnie Wollard
1. Installing Motor Capacitors
Electric motors generate radio noise that can cause radio interference.
Usually included with your motors are three 0.1µF (50V) non-polarized, ceramic
capacitors. These capacitors must be installed on each motor to help reduce the
noise generated by the motor and also to prevent possible damage to the speed control.
| Solder 0.1 µF (50V) capacitors between:
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- POSITIVE (+) motor tab & NEGATIVE (-) motor tab.
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- POSITIVE (+) motor tab & GROUND tab*.
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- NEGATIVE (-) motor tab & GROUND tab*.
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| *If your motor does not have a ground tab, solder the capacitor leads to the can of
the motor as shown below. |
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2.
Install Schottky Diode (if required)
Consult you speed control's operation manual to determine if an external Schottky diode
is required. Use of an external Schottky diode (even if your esc already has one in
it) will increase the efficiency and reduce the operating temperature of the ESC.
NEVER USE A SCHOTTKY WITH A REVERSIBLE ESC
- Solder the lead CLOSEST to the silver stripe on the Schottky diode to the POSITIVE (+)
motor tab.
- Solder the lead OPPOSITE the silver stripe on the Schottky diode to the NEGATIVE (-)
motor tab.
Special thanks to Novak Racing Electronics
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