Investigation of the Behavior of Noise-Insensitive Electronic Circuits for Automotive Applications with Particular Attention to MOS Circuits

摘要

Conditions have been investigated on which MOS circuits with high complexity are applicable to essencial automobile systems. A bipolar circuit technology, CHL (Current Hogging Logic), has been compared to MOS technologies for its competitiveness. Functional requirements on digital automotive systems can only be met by technologies allowing large packing densities and medium speeds (500 kHz) n-MOS and C-MOS exhibit promising properties whereas electric power needed by p-MOS circuits is in general prohibitively large. Reliability of LSI C-MOS circuits has shown to be very good during the investigations. CHL is an extremely noise-immune bipolar technology which, however, performs at low speeds only and also does not compare favourably to MOS technologies with respect to packing density. On the other hand, CHL can be regarded as an interesting technological alternative for small and medium size systems which need analog and digital functions on the same chip.