A novel high voltage detector that can be integrated into SPIC (Smart Power IC) is proposed.The structure is designed on the basis of normal junction terminal technique of FFLR (Floating Field Limiting Rings) system.The field limiting ring as a voltage divider,is used to optimize the surface field.The voltage of main junction increases from 0 to a high value,while the utmost ring is designed to vary within a small range,which can be handled by using low voltage logic circuits.An example of 400V rings system is analyzed and simulated for this structure.The results prove that the high voltage detector can detect high voltage in SPIC.The structure can be integrated into SPIC.Besides,it is compatible with CMOS or BCD(Bipolar CMOS Dmos) technology,without any additional processes required.
本文通过回顾汽车电子技术的应用和发展历程,简要的介绍了国外汽车电子的技术水平及研究方向,同时也介绍了我国汽车电子行业潜在的巨大商机以及面临国外技术垄断的严峻考验,进而提出了振兴汽车工业,实现中国汽车电子产业化的几点建议。尽管我们现在的技术水平与国外相比还存在相当的差距,但是随着我国 IC 产业的不断发展、壮大,相信我们国家一定能在汽车电子方面取得令世人瞩目的成绩。
