| 基于AD603数控高增益宽带放大器的设计 |
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| 引用本文： | 唐雁峰,李洪祚,李锐.基于AD603数控高增益宽带放大器的设计[J].长春理工大学学报,2010,33(1):82-84,13. |
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| 作者姓名： | 唐雁峰 李洪祚 李锐 |
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| 作者单位： | 长春理工大学电子信息工程学院,长春,130022;长春理工大学电子信息工程学院,长春,130022;长春理工大学电子信息工程学院,长春,130022 |
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| 摘 要： | 提出了一种采用数控方式的高增益、宽带宽放大器。采用多个放大器直接耦合级联的方式,有效改善了放大器的低频特性,提高了放大增益范围;数控增益自动稳定技术,有效带宽内提高了增益稳定性;多个放大器增益统一控制电压,降低了增益控制难度,使控制电压与放大增益成线性关系,有利于数控调节增益变化;AVR单片机作为数控单元,键盘输入预置、调节增益,液晶显示,使放大器的操作简单快捷;数控联动开关技术,设计了两级或三级放大的切换功能,使放大器的应用更加灵活。
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| 关 键 词： | 增益数控调节 增益自动控制 多级放大 直接耦合 |
Design of Numeric Control, High-Gain and Wide Bandwidth Amplifier Based on AD603 |
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| TANG Yanfeng,LI Hongzuo,LI Rui.Design of Numeric Control, High-Gain and Wide Bandwidth Amplifier Based on AD603[J].Journal of Changchun University of Science and Technology,2010,33(1):82-84,13. |
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| Authors: | TANG Yanfeng LI Hongzuo LI Rui |
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| Affiliation: | School of Electronic and Information Engineering;Changchun University of Science and Technology;Changchun 130022 |
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| Abstract: | This paper proposes a high gain and wide bandwidth amplifiers with numerical approach. It is improved that the low-frequency characteristics and the range of gain refers to direct-coupling. The gain is controlled with numerical approach,which makes the gain stability. It is easy to control the gain of the multistage amplifier with adopting uniform gain control voltage. It is useful for numerical approach because of the linear between ontrol voltage and the gain. AVR microcontroller is the heart of numerical... |
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| Keywords: | adjustment of gain with numeric control auto control of gain multistage amplifier direct-coupling |
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