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Invention Grant
US09093962B2 Two-stage operational amplifier in class AB 有权
AB级两级运算放大器

Two-stage operational amplifier in class AB
Abstract:
The invention relates to a two-stage operational amplifier (400) in class AB for driving a load (RLB, RLA) comprising: an input stage (401) comprising differential input terminals (IN, 1P) and a first differential output terminal (O1P) and a second differential output terminal (O1N) for providing a first differential driving signal (Out1P) and a second differential driving signal (Out1N), respectively; an output stage (402) comprising a first output branch (403) having a first differential input terminal (I1P) operatively connected to the first differential output terminal (O1P) of the input stage (401) to receive the first differential driving signal (OUT1P) and a second output branch (404) having a second differential input terminal (I1N) operatively connected to the second differential output terminal (O1N) of the output stage (401) to receive the second differential driving signal (Out1N), —a control circuit (405) configured to control the output stage (402).
Abstract(Chinese):

本发明涉及用于驱动负载（RLB，RLA）的AB类中的两级运算放大器（400），包括：输入级（401），包括差分输入端（IN，1P）和第一差分输出端（O1P ）和用于分别提供第一差分驱动信号（Out1P）和第二差分驱动信号（Out1N）的第二差分输出端子（O1N） 输出级（402），包括具有可操作地连接到输入级（401）的第一差分输出端（O1P）的第一差分输入端（I1P）的第一输出分支（403），以接收第一差分驱动信号（OUT1P ）和第二输出分支（404），其具有可操作地连接到输出级（401）的第二差分输出端（O1N）的第二差分输入端（I1N），以接收第二差分驱动信号（Out1N）， - 控制 电路（405）被配置为控制输出级（402）。

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