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Analog and Hybrid Computer Programming, 2nd Edition
book

Analog and Hybrid Computer Programming, 2nd Edition

by Bernd Ulmann
May 2023
Intermediate to advanced
297 pages
9h 14m
English
De Gruyter Oldenbourg
Content preview from Analog and Hybrid Computer Programming, 2nd Edition

E A log() function generator

The logarithm is a particularly useful function as has been seen in section 6.28 where this function was required for the simulation of an air flow. The literature abounds with electronic logarithm function generators – either based on polygon approximation, see section 2.6, or using a suitable PN-junction in the feedback path of an operational amplifier. Both approaches are quite tricky to implement due to the non-negligible temperature coefficients of the diodes and transistors required. Fortunately, there exists an integrated circuit, the LOG112, which implements a high-precision logarithm function generator that can be easily interfaced to an analog computer. The behavior of this device is characterized by ...

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Publisher Resources

ISBN: 9783110787887