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Designing with Microcontrollers with Low EMI
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English
Abstract
This paper describes the results of Intel Automotive's recent experiments for designing systems for low electromagnetic interference (EMI) using the MCS® 96 microcontroller family. The experiments focused on several configurations of a “representative” ABS module. The objectives were to study a layout technique called “micro-island”, various grounding techniques, and the EMI benefit of 4 layer printed circuit boards (PCB) boards over 2 layer PCB boards. The tests showed: the wiring harness is a large contributor to the system emissions, the “micro-island” technique provides significant EMI reduction, and 4-layer PCB designs perform significantly better than 2-layer PCB's. In addition, it was demonstrated how poor layout can lower the performance of a 4-layer PCB to that of a 2-layer PCB.
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Authors
Citation
Banyai, C., "Designing with Microcontrollers with Low EMI," SAE Technical Paper 950836, 1995, https://doi.org/10.4271/950836.Also In
References
- Gerke, Daryl Microprocessors and VHF Radios Mutual Antagonists Part II Kimmel-Gerke Associates, Ltd. 1994
- Gerke, Daryl Designing for EMC. Practical Tools. Tips and Techniques for Bullet Proof Designs Kimmel-Gerke Associates, Ltd. 1994