High-power function generator and generation method

大功率函数发生器及发生方法

Abstract

本发明提供一种大功率函数发生器及发生方法,所述大功率函数发生器包括:函数信号接收模块,接收所需的函数信号;直流信号接收模块,接收作为直流偏移量所需的直流信号;直耦放大器,其输入端正极与所述函数信号接收模块的输出端及直流信号接收模块的输出端分别耦合相连,将所述函数信号和所述直流信号叠加放大,输出大功率函数信号。本发明所述的大功率函数发生器结构简单,成本低,所产生的信号功率、频率响应仅受限于直耦放大器的性能,其输出信号的失真度仅取决于信号源的失真度和直耦放大器的失真度这两个因素,其输出频率也仅受限于直耦放大器的性能,因而可以广泛应用于产品生产和测试中。
The invention provides a high-power function generator and a generation method. The high-power function generator includes: a function signal receiving module for receiving a required function signal; a direct current signal receiving module for receiving a direct current required by a direct current offset; and a direct coupled amplifier, a positive electrode of the input terminal of which is coupled to the output terminal of the function signal receiving module and an output terminal of the direct current signal receiving module, respectively. The function signal and the direct current signal are overlapped and amplified to output a high-power function signal. The high-power function generator is simple in structure and low in cost. Response of power and frequency of a generated signal is only limited to the performance of the direct coupled amplifier; the distortion factor of an output signal only depends on two factors of the distortion factor of a signal source and the distortion factor of the direct coupled amplifier; and the output frequency is only limited to the performance of the direct coupled amplifier, so that the high-power function generator and the generation method are widely applied to production and testing of a product.

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