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5SHY3545L0020电力半导体器件

5SHY3545L0020 3BHE014105R0001 IGCT(Intergrated Gate Commutated Thyristors)是 1996年问世的用于巨型电力电子成套装置中的新型电

力半导体器件。IGCT是一 种基于GTO结构、利用集成栅极结构进行栅极硬驱动、采用缓冲层结构及阳极透明发射极技术的新型大功率半导体开关器

件,具有晶闸管的通态特性及晶体管的开关特性。由于采用了缓冲结构以及浅层发射极技术,因而使动态损耗降低了约50%,另外,此类器件还在

一个芯片上集成了具有良好动态特性的续流二极管,从而以其独特的方式实现了晶闸管的低通态压降、高阻断电压和晶体管稳定的开关特性有机结

合.

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5SHY3545L0020 3BHE014105R0001 IGCT使变流装置在功率、 可靠性、 开关速度、效率、成本、重量和体积等方面都取得了巨大进展,给电力

电子成套装置带来了新的飞跃。IGCT是将GTO芯片与反并联二极管和栅极驱动电路集成在一起,再与其栅极驱动器在外围以低电感方式连接,结合

了晶体管的稳定关断能力和晶闸管低通态损耗的优点,在导通阶段发挥晶闸管的性能,关断阶段呈现晶体管的特性。IGCT具有电流大、 电压高、开

关频率高、可靠性高、结构紧凑、损耗低等特点,而且造成本低,成品率高,有很好的应用前景。采用晶闸管技术的GTO是常用的大功率开关器

件,它相对于采用晶体管技术的IGBT在截止电压上有更高的性能,5SHY3545L0020 3BHE014105R0001但广 泛应用的标准GTO驱动技术造成不

均匀的开通和关断过程,需要高成本的dv/dt和di/dt吸收电路和较大功率的栅极驱动单元,因而造成可靠性下降,价格较高,也不利于串联。但是,

在大功率MCT技术尚未成熟以前,IGCT已经成为高压大功率低频交流器的优选方案。

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5SHY3545L0020 3BHE014105R0001 IGCT has made significant progress in power, reliability, switching speed, efficiency, cost, weight, and volume of the converter device, providing power

Electronic complete sets of devices have brought about a new leap. IGCT integrates GTO chips with anti parallel diodes and gate drive circuits, and then connects them with their gate drivers in a low inductance manner on the periphery

By utilizing the stable turn-off ability of transistors and the advantages of low on state losses of thyristors, the performance of thyristors is utilized during the conduction phase, while the turn-off phase exhibits the characteristics of transistors. IGCT has high current, high voltage, and open

It has the characteristics of high frequency, high reliability, compact structure, low loss, low manufacturing cost, high yield, and has good application prospects. GTO using thyristor technology is a commonly used high-power switch

Compared with IGBT with transistor technology, 5SHY3545L0020 3BHE014105R0001 has higher performance on cutoff voltage, but the widely used standard GTO drive technology causes

The uniform opening and closing process requires high cost dv/dt and di/dt absorption circuits and high-power gate drive units, resulting in reduced reliability, high price, and unfavorable series connection. However,

Before the maturity of high-power MCT technology, IGCT had become the preferred solution for high-voltage high-power low-frequency AC converters.


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