一种差分放大电路线性范围展宽的方法

One way of spreading linear range of difference amplifier

差分放大电路的线性范围比较小,在大信号工作时会产生非线性失真。针对这一问题,本文首先对差分放大电路的传输特性进行了分析,然后拟定出差分放大电路的模型,通过严格的理论推导和定量分析,很好地解决了差分放大电路线性范围小的问题。

The linear range of difference amplifier is smaller, and nonlinear distortion will be produced, when the large-signal is working. Against this problem, this paper analyses the transfer characteristic of difference amplifier at first, and then generates the model of difference amplifier. With strict theoretical derivation and quantitative analysis , the problem that the linear range of difference is smaller has been be well solved.