论文部分内容阅读
十、何谓光电耦合器(Photo cou-pler)、发光二极管(Light EmittingDiode—LED)、光敏三极管(Photo tran-sistor)和光电效应(Photo electric ef-fect)? 光电耦合器(Photo coupler):用光电转换器件(如:光电二极管、光敏三极管)作成的信号耦合器。它由发光源(发光管)(如:发光二极管)和受光器(光敏管)(如:光敏二极管、光敏三极管)两部分组成(组装在同一密封的管壳内,连接发光管作为输入端,连接光敏管作为输出端)。输入端加电信号,使发光二极管发光,光敏三极管被光照射后,产生光电流,由输出端引
X. What is Photo couler, Light Emitting Diode-LED, Photo tran-sistor and Photo electric ef-fect? Photo coupler: Photoelectric conversion devices (such as: photodiode, phototransistor) made of signal coupler. The utility model is composed of a luminescent source (LED), a light-emitting diode (LED) and a photoreceptor (LED), such as a photodiode and a phototransistor (assembled in the same sealed tube case, Connect the phototube as output). Input power-on signal, the light-emitting diode, the phototransistor is irradiated by light, resulting in photocurrent, cited by the output