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A Stepwise Split Power-Driving Scheme With Automatic Slope Control for EMC-Enhanced LIN Transceiver | IEEE Journals & Magazine | IEEE Xplore

A Stepwise Split Power-Driving Scheme With Automatic Slope Control for EMC-Enhanced LIN Transceiver


Abstract:

This paper proposes a split power-driving scheme for electromagnetic interference robust design and its automatic stepwise digital slope control for suppression of spectr...Show More

Abstract:

This paper proposes a split power-driving scheme for electromagnetic interference robust design and its automatic stepwise digital slope control for suppression of spectral emission. This analog-digital hybrid method gives power saving effect up to 24.4%, and also production reliability can be improved by utilizing a failure detection and recovery scheme. For feasibility of the proposed electromagnetic compatibility (EMC) scheme, a Local Interconnect Network transceiver prototype is fabricated in a 0.18-μm BCD process, and experimentally verified to provide EMC-enhanced operation with low-cost and low-power overheads.
Published in: IEEE Transactions on Vehicular Technology ( Volume: 67, Issue: 3, March 2018)
Page(s): 2771 - 2775
Date of Publication: 23 October 2017

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I. Introduction

Electromagnetic interferences (EMIs) are severe in power electronics environments including automotive electronic systems, which makes electromagnetic compatibility (EMC) requirements stringent [1] . Recently, many electronic devices have been accommodated in various application systems, their inter-device communications have been standardized. Especially in automotive electronics, many sensor and actuator systems such as door locks, sun roofs, and car seats widely adopt a standardized 12-V communication protocol of the Local Interconnect Network (LIN) that is a distributed single-wire, low speed (max. ) serial communications protocol [2]. While conventional LIN transceivers were focused on minimizing their inherent spectral emission without affecting communication quality [3], recent research interests in EMI-robust designs have increased considerably [4], [5]. That is, EMC-compliant designs should consider not only their unwanted emission, but also coupling and immunity against interferences.

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