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带电感性直流负载的扼流磁放大器,是磁放大器中最基本的典型线路之一,其静、动态特性的非线性非常突出,给理论分析带来很大困难. 在实测波形分析的基础上,本文严谨地推导得一组新的公式,这些公式表明:带电感性直流负载扼流磁放大器的静态特性,与电路的阻值比(r_x/r_y和R_L/r_y)密切相关,而其传递函数的形式则为 Y(s)=(1+7a~s)/(1+T_1s+T_2~2S~2). 这些结果与本文所引述的各文献[1-8,11]对同一问题的公式是不同的.大量实验证明:本文推导得的这些公式是正确的,与实验数据符合得很好,具有很大的通用性,并解释了一些过去所难以解释的“不正常”现象.
The choke magnetic amplifier with inductive DC load, which is one of the most typical typical circuits in a magnetic amplifier, has outstanding static and dynamic nonlinearity, which brings great difficulties to theoretical analysis.Based on the analysis of the measured waveform, This paper rigorously derives a new set of equations that show that the static characteristics of an inductive DC-loaded choke amplifier are closely related to the circuit resistance values (r_x / r_y and R_L / r_y), and the transfer function (1 + 7a ~ s) / (1 + T_1s + T_2 ~ 2S ~ 2). The formulas for the same problem with the references [1-8,11] cited in this paper are Different.A large number of experiments show that the formulas derived in this paper are correct, which are in good agreement with the experimental data, have a great versatility and explain some “abnormal” phenomena that were difficult to explain in the past.