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논문 기본 정보

자료유형
학술대회자료
저자정보
P T Nandh Kishore (Indian Institute of Technology Delhi) Sumit Kumar Pramanick (Indian Institute of Technology Delhi) Soumya Shubhra Nag (Indian Institute of Technology Delhi)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2023-ECCE Asia
발행연도
2023.5
수록면
99 - 104 (6page)

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초록· 키워드

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GaN devices exhibit switching times of the order of a few nanoseconds and show intense sensitivity to parasitics due to high dv/dt and di/dt transitions. Sensing the switching currents of such devices can be challenging due to requirements of high bandwidth and minimal power loop impedance. This paper presents non-invasive, PCB-embedded coil designs which can accurately capture the magnetic field caused by the fast transitions in the device current. FEM simulations are used to characterize the coils for their bandwidth and extract the coupling between the power trace and the designed PCB coils. The coil’s output voltage is integrated to obtain a signal proportional to the device current. After suitable comparisons, a coil design with a bandwidth of 480 MHz and mutual inductance of 1.51 nH is chosen for implementation in a phase-leg test setup board. Finally, the experimental results of the developed sensor prototype are presented, which is found to validate the results of the FEM simulations.

목차

Abstract
I. INTRODUCTION
II. DEVELOPMENT OF PCB EMBEDDED COIL
III. ANALYSIS OF THE COIL AND ITS INTEGRATOR CIRCUITRY
IV. EXPERIMENTAL VERIFICATION
V. CONCLUSIONS
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