一种数字幅频均衡功率放大器的设计  

The Design of a Power Amplifier on Digital-Frequency Equalization

作　　者：张家田[1] 王华[1] 严正国[1] 

机构地区：[1]西安石油大学电子工程学院,陕西西安710065

出　　处：《石油工业技术监督》2011年第4期1-4,共4页Technology Supervision in Petroleum Industry

基　　金：陕西省自然科学基金(2007D01);西安石油大学创新基金(YS28030533)

摘　　要：本系统由前置放大器、带阻网络和数字幅频均衡器3大模块组成。前置放大器采用集成运放组成的多级同相比例放大电路达到增益要求;带阻网络通过调整电路部分参数完成衰减要求;数字幅频均衡器采用集成了A/D、D/A、比较器、定时器、片上Flash存储器的SoC单片机最小系统实现幅频均衡。This system consists of three large blocks such as the preamplifier,the network with resistance and the digital-frequency equalizers.The preamplifier can reach the demands of increasing benefits through the application of amplifying circuit with the multi-stage identical proportion,which is made up of integrated operational amplifiers.The network with resistance can meet the requirements of attenuation by the adjustment of partial parameters of circuit.And the digital-frequency equalizer can realize the frequency equalization by the use of smallest system,which integrates the A/D,D/A,comparator,timer,and the single unit Soc in the flash storage.

关 键 词：前置放大器 带阻网络 数字幅频均衡器 

分 类 号：TN722.75[电子电信—电路与系统]