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09.03.2009, 04:57 PM
Thanks for posting that Pdelcast (Patrick?), a good explanation for the not so tech savy.
Byte, yes the FET's do not continuously short the motor windings out, it uses the same principle as working normally as a motor, it's called PWM (pulse width modulation) and basically the more braking you input on your Tx, the wider the 'pulses', and hence more braking action. PWM is usually at a set frequency, but not always, and if it is variable, will change according to motor speed. Some controllers vary PWM in normal forward/throttle operation, usually to increase efficiency at lower rpm's, as the higher frequency PWM you go, the more heat is created because of eddy currents.
“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens
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