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温度变化对于晶体管放大器的工作情况具有巨大影响。人们在这个问题上曾作深入研究。文献中关于这问题的文章已发表很多,但大多数的注意力均放在直流工作点的稳定而不在输出电压的稳定,在任何放大器输出电压的稳定应当是我们努力完成的最后目标,本文最先一般地讨论对温度的稳定性问题,随后说明了晶体管参量变化的性质,主要提出了若干稳定晶体管声频放大器输出电压的方法,其中包含直流工作点移动法(线性与非线性),h_(11)与h_(22)的温度补偿法,和负反馈方法。各种方法均做了大量实验,并附以实验的曲线。
Temperature variations have a huge impact on transistor amplifier operation. People have conducted in-depth studies on this issue. Articles in the literature on this issue have been published a lot, but most of the attention is placed on the stability of the DC operating point and not on the stability of the output voltage. The stabilization of the output voltage at any amplifier should be the last goal we are trying to accomplish. Firstly, the stability of the temperature is generally discussed. Then the properties of the transistor parameters are described. Several methods are proposed to stabilize the output voltage of the transistor audio amplifier, including the DC operating point shift method (linear and nonlinear), h_ (11) ) And h_ (22) temperature compensation method, and the negative feedback method. Various methods have done a lot of experiments, and attached to the experimental curve.