A Quarter-Square Multiplier Using a Segmented Parabolic Characteristic

1 September 1951

journal article
research article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 22 (9) , 683-688
https://doi.org/10.1063/1.1746035

Abstract

A circuit for multiplying two varying voltages based on the ``quarter‐square'' method has been developed. A segmented nonlinear element is used for squaring, and a time‐sharing scheme permits the use of a single squaring element instead of duplicate elements as in previous designs. The circuit has a time delay of less than 40 microseconds (0–67 percent) and has an accuracy of better than ±1 percent. The original circuit was designed to operate only in the first quadrant. Various methods for including the four quadrants are discussed.

Keywords

TIME SHARING

This publication has 2 references indexed in Scilit:

New Techniques on the Anacom--- Electric Analog Computer
Transactions of the American Institute of Electrical Engineers, 1950
Electronic Techniques Applied to Analogue Methods of Computation
Proceedings of the IRE, 1949