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Some Aspects of Magnetic Amplifier Technique

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1 Author(s)
Butcher, F.E. ; Group Designs Manager, Joseph Lucas Ltd., Great King Street, Birmingham 19, England

Design problems of magnetic amplifiers have been mastered by a technique which appertains to core construction, arrangement and proportioning of windings, and circuiting. Principles are described which have led to the construction of precision amplifiers adaptable to a wide range of input impedances and output requirements. Performance figures are given and practical applications described. Graphical methods for dimensioning the circuit elements and for predicting the performance of the assembly are set out and applied to push-pull amplifiers. Performance limits imposed by zero stability and response time are reviewed and assessed.

Published in:

Proceedings of the IRE  (Volume:40 ,  Issue: 3 )