At the power output, OCL complementally and symmetrical power amplifier is adapted. The output sine voltage becomes smooth and stable by adding voltage-negative-feedback to power amplifier.
The article analyzes the frequency characteristics of RC series parallel circuits and the symmetrical circuits, through studying the effectiveness of the positive-negative feedback to the amplifier.
从正、负反馈对放大器性能影响出发，分析RC串、并联电路及其对偶电路的频率特性。
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The sense amplifier circuit is commonly symmetrical which needs a matched layout design, so the system design and layout design is also discussed at the end.