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AssigneeThe Board of Trustees of The University of Alabama
InventorsAndrew N. Lemmon, Ali Shahabi
Estimating the term…
The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules. The disclosed apparatus provides near-complete elimination of high frequency spectral content, while leaving the desired frequency range (1-100 kHz) of the module unaffected. In addition to the suppression of this undesirable high-frequency content, the disclosed apparatus also provides for accurate, galvanically-isolated, high-bandwidth, real-time current measurement, which is essential for some types of power electronics converters. Prior to the disclosure of this apparatus, these two features (ringing suppression and current measurement) have required physically-separate circuits for implementation, which increases the size, weight, and cost of the final implementation. The apparatus disclosed here provides both of these features in simple circuit topology that can be implemented compactly inside the geometry of a multi-chip power module.
A method of measuring current and snubbing in a multi-chip power module, the multi-chip power module comprising a magnetic core current transformer having an insertion impedance Zin and turns ratio N, a burden resister having resistance RB and a filter, the filter comprising a capacitance CP, an inductance LP and a resistance RP;
Dependencies are inferred from the claim text.