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Time sharing of control and interlock circuitry by one wire.
Kelley, Rolland C.
Kelley, Rolland C.
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t1962_Kelley.pdf
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1962-08
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Abstract
SUMMARY
The concept of "time-sharing" of control and interlock
wiring is introduced in this paper. This concept calls
for the use of one wire to transmit many functions each
in its own distinct time period, thereby reducing the
number of wires necessary.
The type of functions that are adaptable and some aircraft
systems that utilize the functions are listed.
A comparison of rotating vs. solid state commutators is
made, and considerable effort is directed into understanding
solid state switching theory.
The use and operation in switching circuits of three
types of solid state components, (silicon controlled
rectifiers, unijunction transistors, and transistors)
is presented.
The theory of operation of the circuits required to build
the "time-sharing" units is discussed. Some circuits
included in this discussion are an astable multivibrator,
a ring counter, and a channel synchronizing circuit.
Successful operation of the "time-sharing" concept was
demonstrated by connecting control relays and interlock
circuits through the solid state commutators. Some limitations
are mentioned as well as possible future uses of
"time-sharing". Twenty-six oscillograph traces and the
necessary circuit diagrams are found in the appendix.
Table of Contents
Introduction -- Design considerations and scope -- Solid state commutator design and development -- Operation -- Performance -- Conclusions
Description
Thesis (M.S.)-- University of Wichita, College of Engineering, Dept. of Electrical Engineering
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Wichita State University
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Wichita State University