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发明授权
CN101340177B 信号处理电路 有权

信号处理电路
摘要：
一种放大器包含有：一AB类输入级(class AB input stage)电路，用来接收一输入信号，并且根据该输入信号产生一内部信号；一AB类输出级(classAB output stage)电路，耦接至该AB类输入级电路，包含：一偏压电路(biasingcircuit)，用来根据该内部信号，以产生一第一偏压信号与一第二偏压信号；以及一输出电路，耦接至该偏压电路，用来根据该第一偏压信号与该第二偏压信号以产生一输出信号；其中，该偏压电路所产生的该第一偏压信号与该第二偏压信号的一压差是与该输入信号相对应。
摘要（英）：

An amplifier comprises a class AB input stage circuit for receiving an input signal and generating an internal signal according to the input signal, a class AB output stage circuit which is coupled to the class AB input stage circuit and comprises a biasing circuit for generating a first bias signal and a second bias signal according to the internal signal, and an output circuit which is coupled to the biasing circuit and used for generating an output signal according to the first bias signal and the second bias signal; wherein, a voltage difference of the first bias signal and the second bias signal which are generated by the biasing circuit corresponds to the input signal.

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