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In this paper, we propose a circuit model that can predict the common-mode noise current in the AM radio band that will flow to an evaluation circuit consisting of a DC motor, a motor control unit, and a battery. In this model, the common-mode impedance of each unit and the impedance of the cables are expressed by lumped constant circuits. It is found that the common-mode current that flows in the...
A highly accurate filter simulation requires a high precision SPICE model for the common mode choke. Conventional SPICE models for chokes consist of parallel RLC circuits and show a substantial difference between the measured and simulated impedance characteristics due to the lack of frequency-dependent complex permeability considerations. Here, we propose a novel SPICE model for a common mode choke...
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