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Old Dec 20, 2003, 08:09 PM
Takao Shimizu is offline
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Tokyo, Japan
Joined Nov 2002
903 Posts
Re-measured the copper loss

I had used my DC power supply source meter.
The measureing current is 0.5A.

The copper wire resinstance at one phase wing is 0.3056 ohm.

The copper loss is 5.7^2 * 0.3=9.75W at APC 5.5x4.5, 10kRPM Direct Drive, 2s E-tec.

Also, We have to consider the loss on ESC MOSFET, It is about 15mill. ohm.

Obviously, 3s system is better by this result.
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