Document Type
Thesis
Date of Award
5-31-1990
Degree Name
Master of Science in Electrical Engineering - (M.S.)
Department
Electrical and Computer Engineering
First Advisor
Dale Thorpe Teaney
Second Advisor
Anthony D. Robbi
Third Advisor
Nirwan Ansari
Abstract
This thesis describes various electrical noises, noise environments and noise effects for electronic logic circuitry. The optical isolator is introduced and its concept, classification and characteristics are discussed.
Various design considerations are reviewed: input forward current, reverse breakdown protection, threshold, current transfer ratio, isolation voltage, data rate, common mode rejection, CMOS compatibility, isolation resistance, isolation capacitance, temperature effect and cost.
A multi-channel optical isolated input/output interface board for 8052AH BASIC SBC is designed. It includes 16 input channels, 16 output channels, decoder circuit, latching circuit, PC895 interface and input protection circuit. The sample board has been built, tested in the high common mode voltage I/O area. The system specification and its comparison with other existing systems are given.
Recommended Citation
Xiao, Meng, "Optical isolation of single board computer for use in high electrical noise environments" (1990). Theses. 2997.
https://digitalcommons.njit.edu/theses/2997
