Editing Electromagnetic interference
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*Magnetic coupling | *Magnetic coupling | ||
*Capacitive coupling | *Capacitive coupling | ||
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===Capacitive coupling in motor control=== | ===Capacitive coupling in motor control=== | ||
In motor control applications capacitive coupling is the most common cause for EMI problems. Capacitive coupling occurs when unshielded conductors are in each other's proximity and source conductor is carrying voltage signal with high slew rate (dv/dt). Example of such source is the motor leads carrying high voltage [[PWM]] signal. | In motor control applications capacitive coupling is the most common cause for EMI problems. Capacitive coupling occurs when unshielded conductors are in each other's proximity and source conductor is carrying voltage signal with high slew rate (dv/dt). Example of such source is the motor leads carrying high voltage [[PWM]] signal. | ||
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See more at: http://www.electrical-installation.org/enwiki/Capacitive_coupling | See more at: http://www.electrical-installation.org/enwiki/Capacitive_coupling | ||
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