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一种低功耗微弱信号放大电路的优化设计与研究
Alternative TitleOptimal Design and Research of Small Signal Amplifier with Low Power Consumption
冀大雄; 陈孝桢; 刘健; 封锡盛
Department水下机器人研究室
Source Publication电子器件
ISSN1005-9490
2008
Volume31Issue:4Pages:1303-1306
Contribution Rank1
Keyword高增益 预白化 前置放大 稳定 低功耗
Abstract针对远距离声源发射的水声信号微弱、水声接收设备电源能量有限的特点,提出一种功耗小、对无源元件误差灵敏度低、高增益放大的微弱水声信号通用放大电路。系统采用场效应管共源单调谐放大器为前置放大级,由四级级联低功耗运放构成带通滤波放大电路,省去传统的R、C低通网络,实现了对微弱水声信号的高增益放大和海洋背景噪声的归一化处理。通过计算电路网络传递函数极点证明了电路系统的稳定性。海上使用表明系统具有精度高、适应性强、电路稳定性好、功耗小等优点。
Other AbstractFor the problems of the small signal which travels from the distance and the limited power of acoustic receiver underwater,a kind of design for acoustic general amplifier is presented with low power consumption,high gain amplification and low sensitivity to the errors of passive elements.The electro-circuit system is made up of preamplifier and band-pass filter which comprises four operational amplifiers in series instead of RC low-pass net.This design is applied to possess capabilities that the high gain amplification of small signal and pre-whitening process of sea noise background.The computation of poles of the transfer function shows that the designed amplifier is stable.Sea test proves that the system has merits of high precision,good adaptability,stable performance and low power consumption.
Language中文
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/3480
Collection水下机器人研究室
Corresponding Author冀大雄
Affiliation1.中国科学院沈阳自动化研究所机器人学国家重点实验室
2.南京大学电子科学与工程系
Recommended Citation
GB/T 7714
冀大雄,陈孝桢,刘健,等. 一种低功耗微弱信号放大电路的优化设计与研究[J]. 电子器件,2008,31(4):1303-1306.
APA 冀大雄,陈孝桢,刘健,&封锡盛.(2008).一种低功耗微弱信号放大电路的优化设计与研究.电子器件,31(4),1303-1306.
MLA 冀大雄,et al."一种低功耗微弱信号放大电路的优化设计与研究".电子器件 31.4(2008):1303-1306.
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