| 光耦合器组成的模拟信号放大电路分析与设计 |
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| 引用本文： | 付丽娟,杨景芝.光耦合器组成的模拟信号放大电路分析与设计[J].电子测试,2008(3):79-82. |
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| 作者姓名： | 付丽娟 杨景芝 |
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| 作者单位： | 山东大学,莱芜职业技术学院,莱芜,271100 |
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| 摘 要： | 利用光耦合器进行隔离是在生物信息检测、工业现场检测、高压信号检测等场合,测量系统内对模拟电信号进行有效隔离的方法之一.本文通过采用双光耦合器反馈技术组成对称补偿电路的合理设计,通过实际测试和对参数完全相同的2个光耦进行静态调试,可使光耦合器发光二极管工作于线性区,实现模拟信号的线性隔离和传输,克服了由于组成光耦输入电路的发光二极管存在非线性、发光二极管存在死区电压和发光二极管的管压降受温度影响较大而带来的光耦合器作模拟信号隔离存在的问题.
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| 关 键 词： | 光耦合器 合理设计 模拟信号 线性隔离和传输 |
Analysis and design of analog signal composed optical coupler |
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| Fu Lijuan,Yang Jingzhi.Analysis and design of analog signal composed optical coupler[J].Electronic Test,2008(3):79-82. |
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| Authors: | Fu Lijuan Yang Jingzhi |
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| Affiliation: | Fu Lijuan,Yang Jingzhi(Laiwu Vocational College,Sh,ong University,Laiwu 271100,China) |
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| Abstract: | Isolation used optical coupler is one of the effective isolating means of analog electric sinpal in measure system in examination of biological information,industrial situation,hight voltage signal and ect.LED of optical coupler can work in linear range,achieving linear isolation and propagation of analog singal by symmetrical compensation circurt of feedback with double optical coupler,practical test and adjustment of static operating point of double optical coupler with identical parameter.Optical coupler... |
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| Keywords: | optical coupler rational design analog singal linear isolation and propagation |
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