6SC6502-0AB02-494057模块备件使用范围

电子技术是十九世纪末到二十世纪初开始发展起来的新兴技术，二十世纪发展迅速，应用广泛，成为近代科学技术发展的一个重要标志。在十八世纪末和十九世纪初的这个时期，由于生产发展的需要，在电磁现象方面的研究工作发展得很快，1785年法国科学家库伦由实验得出电流的库仑定律。1895 年，荷兰物理学家亨得里克·安顿·洛伦兹假定了电子存在。1897年，英国物理学家汤姆逊（J.J.Thompson）用试验找出了电子。1904年，英国人J.A.Fleming 发明了简单的二极管(diode或 valve)，用于检测微弱的无线电信号。 1906 年，L.D.Forest 在二极管中安上了第三个电极（栅极，grid）发明了具有放大作用的三极管，这是电子学早期历史中重要的里程碑。1948 年美国贝尔实验室的几位研究人员发明晶体管。1958 年集成电路的个样品见诸于世。集成电路的出现和应用，标志着电子技术发展到了一个新的阶段。
电子技术研究的是电子器件及其电子器件构成的电路的应用。半导体器件是构成各种分立、集成电子电路基本的元器件。随着电子技术的飞速发展，各种新型半导体器件层出不穷。现代电力电子技术的发展方向，是从以低频技术处理问题为主的传统电力电子学，向以高频技术处理问题为主的现代电力电子学方向转变。电力电子技术起始于五十年代末六十年代初的硅整
电子产品
电子产品
流器件，其发展先后经历了整流器时代、逆变器时代和变频器时代，并促进了电力电子技术在许多新领域的应用。八十年代末期和九十年代初期发展起来的、以功率MOSFET和IGBT为代表的、集高频、高压和大电流于一身的功率半导体复合器件，表明传统电力电子技术已经进入现代电力电子时代。

Electronic technology is an emerging technology developed from the end of the 19th century to the beginning of the 20th century. It has developed rapidly and been widely used in the 20th century, and has become an important symbol of the development of modern science and technology. At the end of the 18th century and the beginning of the 19th century, due to the needs of production development, the research on electromagnetic phenomena developed rapidly. In 1785, French scientist Coulomb obtained the Coulomb law of current through experiments. In 1895, Dutch physicist Hendrick Anton Lorenz assumed the existence of electrons. In 1897, the British physicist j.j.thompson found the electron by experiment. In 1904, the British j.a.fleming invented a simple diode (diode or valve) to detect weak radio signals. In 1906, l.d.forest installed a third electrode (grid) in the diode and invented the triode with amplification function, which is an important milestone in the early history of electronics. In 1948, several researchers at Bell Laboratories in the United States invented the transistor. In 1958, samples of integrated circuits appeared in the world. The emergence and application of integrated circuits marks a new stage in the development of electronic technology.
Electronic technology studies the application of electronic devices and circuits composed of electronic devices. Semiconductor devices are the basic components of various discrete and integrated electronic circuits. With the rapid development of electronic technology, various new semiconductor devices emerge in endlessly. The development direction of modern power electronics technology is from traditional power electronics, which mainly deals with problems with low-frequency technology, to modern power electronics, which mainly deals with problems with high-frequency technology. Power electronics technology began with silicon integration in the late 1950s and early 1960s
electronic product
electronic product
The development of current devices has experienced the era of rectifier, inverter and frequency converter, and promoted the application of power electronics technology in many new fields. The power semiconductor composite devices developed in the late 1980s and early 1990s, represented by power MOSFET and IGBT, which integrate high frequency, high voltage and high current, show that the traditional power electronics technology has entered the modern power electronics era.