High Precision Multipliers using Hall Element with Magnetic Flux Control

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  • ホール素子形乗算器の高精度化と磁束制御
  • ホール ソシガタ ジョウザンキ ノ コウセイドカ ト ジソク セイギョ

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Abstract

Recently it seems that there are almost no multipliers using Hall elements. This fact mainly comes from the magnetic nonlinearity such as magnetic saturation and hysteresis of a magnetic core used in order to increase the gain of the magnetic flux path.<br>This paper shows realization of a high precision multiplier using a Hall element with magnetic flux control. Moreover, the relation between the precision of the flux control and the precision of the multiplier is clarified. As a result, it is shown that the precision of the proposed multiplier is considerably higher than that of a existing IC multiplier.

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