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S. J. Young F. P. Dawson A. Conrad Department of Electrical and Computer Engineering University of Toronto |
A Three-Material Passive dI/dt LimiterThis paper introduces and examines a composite magnetic device (called a dI/dt limiter) which functions as a bi-level inductor. For DC currents below a designed threshold level, the inductance and resistance of the device is quite low. However, the inductance of the device (called a dI/dt limiter) increases dramatically for all currents greater than the threshold level. In this paper a set of performance equations are derived which describe the inductance of the dI/dt limiter as a function of current. The data obtained from these performance equations is compared to the results of a set of finite element simulations. |
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