电流传感功率MOSFET (SENSEFET)的性能分析与信号处理

Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting Pub Date : 1991-09-28 DOI:10.1109/IAS.1991.178050

S. Yuvarajan, L. Wang

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引用次数: 38

摘要

电流感应功率mosfet (sensefet)提供的信号可用于转换器馈电驱动器和电源中的电流反馈和快速过流保护。通过获取电流检测波形，研究了用于直流斩波电路的SENSEFET的性能。感测信号包含较大的开关瞬态，需要用特殊的处理电路去除。给出了处理电路的细节和波形。电流回路是通过反馈信号处理器的输出来合成的。

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Performance analysis and signal processing in a current sensing power MOSFET (SENSEFET)

Current sensing power MOSFETs (SENSEFETs) provide signals which can be used for current feedback and fast overcurrent protection in converter-fed drives and power supplies. The authors investigate the performance of a SENSEFET used in a DC chopper circuit by obtaining the current sense waveforms. The sense signals contain large switching transients which are to be removed using a special processing circuit. The details of the processing circuit and the waveforms are presented. A current loop is synthesized by feeding back the output of the signal processor.<>

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Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting

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