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.
在功率输出级采用OCL互补对称功率放大电路，并对该功放电路增加电压负反馈，使得输出的正弦电压信号平滑而稳定。
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。
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.
通常情况下，灵敏放大器均设计为对称结构，对版图有着很高的对称要求，最后也对系统和版图设计做了简要讨论。
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