| 程控宽带直流功率放大器的设计 |
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| 引用本文： | 曹卫锋,郑安平,张晋宇.程控宽带直流功率放大器的设计[J].单片机与嵌入式系统应用,2010(6):56-59. |
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| 作者姓名： | 曹卫锋 郑安平 张晋宇 |
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| 作者单位： | 1. 郑州轻工业学院,电气信息工程学院
2. 郑州轻工业学院,技术物理系,郑州,450002 |
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| 摘 要： | 以压控运放AD603、功率运放THS3092、10位串行D/A芯片TLC5615和AVR单片机ATmega128为核心,以液晶屏、键盘为人机接口,通过软件补偿增益误差,设计一种可编程控制电压增益的大功率宽带直流放大器。该放大器可实现0～60dB增益范围内1dB步进可调和DC～10MHz带宽,控制误差不大于3%,50Ω负载上最大不失真输出有效值达到10V。
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| 关 键 词： | 宽带直流功率放大器 AD603 频带预置 THS3092 |
Program-controlled Broadband DC Power Amplifier |
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| Cao Weifeng,Zheng Anping,Zhang Jinyu.Program-controlled Broadband DC Power Amplifier[J].Microcontrollers & Embedded Systems,2010(6):56-59. |
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| Authors: | Cao Weifeng Zheng Anping Zhang Jinyu |
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| Affiliation: | 1. College of Electric and Information Engineering, Zhengzhou University of Light Industry;2.Department of Technology and Physics, Zhengzhou University of Light Industry, Zhengzhou 450002, China) |
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| Abstract: | The designed broadband DC power amplifier with programmable voltage gain is based on voltage-controlled amplifier AD603, power amplifier THS3092, 10 bit serial DAC TLC5615 and AVR microcontroller ATmega128. LCD screen and keyboard are used as man-machine interface, and software method is used for gain error compensation. The system achieves 0～60 dB gain（1 dB step adjustable）, DC～10 MHz bandwidth, control error less than 3%, and 10 V largest RMS output signal without distortion in 50 Ω load. |
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| Keywords: | AD603 THS3092 |
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