Capacitors for Motor
08-11-2005, 07:58 AM
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Capacitors for Motor
Hello..
I bought a 540 Can Motor at the ebay and I found it does not have two capacitors connected.
Some people say that the capacitors are already inside the motor, but I cannot see them through the opening of the motor.
If I have to install the capacitors what size of capacitors should be needed for 540 motor?
Without capacitors what problems would occur?
Glen
I bought a 540 Can Motor at the ebay and I found it does not have two capacitors connected.
Some people say that the capacitors are already inside the motor, but I cannot see them through the opening of the motor.
If I have to install the capacitors what size of capacitors should be needed for 540 motor?
Without capacitors what problems would occur?
Glen
08-11-2005, 09:48 AM
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RE: Capacitors for Motor
Use .1uf 50V ceramic. One end of a capacitor connects to a motor lead the other end of the same cap to the motor case. Keep the wires as short as possible. The caps provide noise supression. They reduce motor brush interference that may cause the receiver to glitch.
08-12-2005, 03:23 AM
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RE: Capacitors for Motor
Thanks for the information.
Do you mean that two capacitors are needed for each battery lead?
Would you write again the spec of cap? I cannot see well. (.1uf 50V ceramic)
Is it available at the electronics shop?
Glen
Do you mean that two capacitors are needed for each battery lead?
Would you write again the spec of cap? I cannot see well. (.1uf 50V ceramic)
Is it available at the electronics shop?
Glen
08-12-2005, 08:08 AM
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RE: Capacitors for Motor
Places like Radio Shack will carry them.
You need one for each lead. Solder one leg of the capacitor to the tab the wire is connected to, and the other leg gets soldered to the metal can of the motor.
And yes, you read right on capacitor info.
One other note. Check your paperwork for the Esc you are using, some recommend the addition of an "S" diode, across the 2 terminals also.
You need one for each lead. Solder one leg of the capacitor to the tab the wire is connected to, and the other leg gets soldered to the metal can of the motor.
And yes, you read right on capacitor info.
One other note. Check your paperwork for the Esc you are using, some recommend the addition of an "S" diode, across the 2 terminals also.
08-12-2005, 10:58 AM
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RE: Capacitors for Motor
Glacier Girl is most correct. If you use a "S" (Schottky) diode, carefully observe polarity. The band marked on the diode (cathode) connects to the positive battery/motor lead. This diode is really not needed so don't mess with it unless you are really paranoid.
