5SHY3545L0014 3BHB013085R0001 ABB IGCT系列模塊

GCT集成門(mén)極換流晶閘管(Intergrated?Gate?Commutated?Thyristors)?,它是將GTO芯片與反并聯(lián)二極管和門(mén)極驅(qū)動(dòng)電路集成在一起,再與其門(mén)極驅(qū)動(dòng)器在外圍以低電感方式連接而成。也就是門(mén)極集成化的GTO(Gate Turn Off)。

分類(lèi):

描述

IGCT在整流環(huán)節(jié)中與SCR一脈相承,SCR是Silicon Controlled Rectifier的縮寫(xiě),是可控硅整流器的簡(jiǎn)稱(chēng)??煽毓栌袉蜗颉㈦p向、可關(guān)斷和光控幾種類(lèi)型。它具有體積小、重量輕、效率高、壽命長(zhǎng)、控制方便等優(yōu)點(diǎn),被廣泛用于可控整流、調(diào)壓、逆變以及無(wú)觸點(diǎn)開(kāi)關(guān)等各種自動(dòng)控制和大功率的電能轉(zhuǎn)換的場(chǎng)合。
單向可控硅是一種可控整流電子元件,能在外部控制信號(hào)作用下由關(guān)斷變?yōu)閷?dǎo)通,但一旦導(dǎo)通,外部信號(hào)就無(wú)法使其關(guān)斷,只能靠去除負(fù)載或降低其兩端電壓使其關(guān)斷。單向可控硅是由三個(gè)PN結(jié)PNPN組成的四層三端半導(dǎo)體器件,與具有一個(gè)PN結(jié)的二極管相比,單向可控硅正向?qū)ㄊ芸刂茦O電流控制;與具有兩個(gè)PN結(jié)的三極管相比,差別在于可控硅對(duì)控制極電流沒(méi)有放大作用。雙向可控硅具有兩個(gè)方向輪流導(dǎo)通、關(guān)斷的特性。雙向可控硅實(shí)質(zhì)上是兩個(gè)反并聯(lián)的單向可控硅,是由NPNPN五層半導(dǎo)體形成四個(gè)PN結(jié)構(gòu)成、有三個(gè)電極的半導(dǎo)體器件。由于主電極的構(gòu)造是對(duì)稱(chēng)的(都從N層引出),所以它的電極不像單向可控硅那樣分別叫陽(yáng)極和陰極,而是把與控制極相近的叫做第一電極A1,另一個(gè)叫做第二電極A2。

5SHY3545L0014 3BHB013085R0001 3BHE039203R0101 GVC736CE101

IGCT is in a continuous line with SCR in the rectification process, which is the abbreviation of Silicon Controlled Rectifier. There are several types of thyristor, including unidirectional, bidirectional, switchable, and optically controlled. It has the advantages of small size, light weight, high efficiency, long service life, and convenient control, and is widely used in various automatic control and high-power power conversion situations such as controllable rectification, voltage regulation, inverter, and contactless switch.
Unidirectional thyristor is a controllable rectifier electronic component that can change from off to on under the action of external control signals. However, once on, the external signal cannot turn it off and can only be turned off by removing the load or reducing the voltage at both ends. Unidirectional thyristor is a four layer three terminal semiconductor device composed of three PN junctions PNPN. Compared with diodes with one PN junction, the forward conduction of unidirectional thyristor is controlled by the control pole current; Compared with a transistor with two PN junctions, the difference is that the thyristor has no amplification effect on the control electrode current. Bidirectional thyristor has the characteristic of conducting and turning off alternately in two directions. Bidirectional thyristors are essentially two anti parallel unidirectional thyristors, which are semiconductor devices composed of four PN structures formed by NPNPN five layer semiconductors and have three electrodes. Due to the symmetrical structure of the main electrode (all led out from the N layer), its electrodes are not referred to as anodes and cathodes respectively like unidirectional thyristors. Instead, the electrode that is similar to the control electrode is called the first electrode A1, and the other is called the second electrode A2.

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Chengdu Sunshine Xihe Co., Ltd. specializes in one-stop procurement consulting for imported industrial spare parts, offering original equipment and professional discontinued parts services. We are committed to providing efficient and reliable automation solutions for our customers. Customer support fast responseThe network of partners spans all continentsGlobal partner networkAlways achieve more delivery, be it parts, service or speed



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