This article analyses influence on inside resistance in the signal source on circuit in 3 ways: monopole amplifying circuit, multilevel amplifier circuit, and negative feedback amplifier.
本文从单级放大电路、多级放大电路、负反馈放大电路三个方面，分析了信号源内阻对电路的影响。
The series H-bridge multilevel converter's power circuit is composed of uncontrolled rectifier with filtering capacitor and single phase H-bridge voltage-type inverter.
串联H桥多电平变频器的主回路从结构上可分为三相电容滤波不可控整流电路和单相电压型全桥逆变电路。
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