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一、前言本文对矩磁性磁心的频率特性进行了测试,并依此求出等效磁心的阻抗与铁的损耗,这是设计使用此种磁心的机器时一项重要的工作。所有的频率均必须在磁通变化量一定的条件下进行测量。这就是就,必须使所加电压的“电压—时间”积分值保持恒定。本文叙述的直—交流变换电路,能够满足这些条件的要
I. INTRODUCTION This paper tests the frequency characteristics of moment magnetic core and deduces the impedance of equivalent core and the loss of iron accordingly. This is an important work in the design of the machine using such core. All frequencies must be measured at a constant flux variation. This is the point that the “voltage-time” integral of the applied voltage must be kept constant. Straight-to-AC conversion circuit described in this article, to meet the requirements of these conditions