论文部分内容阅读
本文所述的设计方法,能很好地克服在设计共发射极晶体管音频放大器中所存在的所有限制。这种方法,主要依赖于交替使用串并联反馈的各级之间的阻抗匹配。本文指出,能实现的增益一带宽的乘积,超过0.9(?),且此积对于晶体管参数的变化不灵敏,同时能够获得高的输出电压。建立了增益和带宽两者的方程,其型式特别适用于实际设计工作,并较简单、准确。
The design method described in this article can well overcome all the limitations that exist in the design of a common emitter transistor audio amplifier. This method relies mainly on impedance matching between the stages that alternately use series-parallel feedback. This paper points out that the gain-bandwidth product that can be achieved exceeds 0.9 (?), And this product is insensitive to transistor parameter variations while achieving high output voltage. The equations for both gain and bandwidth are established, and their patterns are particularly suitable for practical design work and are simple and accurate.