描述

UAD149A0011 采用緩沖層結(jié)構(gòu)及陽極透明發(fā)射極技術(shù)的新型大功率半導(dǎo)體開關(guān)器件

集成門極換流晶閘管（簡稱IGCT或GCT）是1996年問世的用于巨型電力電子成套裝置中的新型電力半導(dǎo)體器件。IGCT是一種基于GTO結(jié)構(gòu)、利用集成柵極結(jié)構(gòu)進行柵極硬驅(qū)動、采用緩沖層結(jié)構(gòu)及陽極透明發(fā)射極技術(shù)的新型大功率半導(dǎo)體開關(guān)器件，具有晶閘管的通態(tài)特性及晶體管的開關(guān)特性。

IGCT采用緩沖結(jié)構(gòu)以及淺層發(fā)射極技術(shù)，使動態(tài)損耗降低約50％，UAD149A0011具有電流大、電壓高、開關(guān)頻率高、可靠性高、結(jié)構(gòu)緊湊、損耗低等特點。

集成門極換流晶閘管是一種大功率半導(dǎo)體器件，UAD149A0011將門極驅(qū)動電路和門極換流晶閘管集成在一起。與傳統(tǒng)的門極換流晶閘管相比，集成門極換流晶閘管具有更低的關(guān)斷時間和功耗，同時不需要吸收電路。其工作原理如下：

當集成門極換流晶閘管的陽極A接電源的正端、陰極K經(jīng)負載接電源的負端時，承受正向電壓，此時控制電路中的開關(guān)S斷開，晶閘管不導(dǎo)通。當控制電路中的開關(guān)S閉合，使控制極也加上正向電壓時，晶閘管開始導(dǎo)通。

一旦晶閘管導(dǎo)通后，UAD149A0011控制極就失去控制作用。即使去掉控制極上的電壓（即將開關(guān)S斷開），晶閘管仍然保持導(dǎo)通狀態(tài)。但如果控制極上加的是反向電壓，不論主電路中陽極和陰極間是正向電壓還是反向電壓，晶閘管都不導(dǎo)通。

集成門極換流晶閘管具有開通損耗和導(dǎo)通損耗都很低、可以在高頻率下運行等優(yōu)點，廣泛應(yīng)用于高電壓大電流的場合。

UAD149A0011 采用緩沖層結(jié)構(gòu)及陽極透明發(fā)射極技術(shù)的新型大功率半導(dǎo)體開關(guān)器件

Integrated gate commutated thyristor (IGCT or GCT for short) is a new type of power semiconductor device which was developed in 1996 and used in large power electronics packages. IGCT is a new type of high-power semiconductor switching device based on GTO structure, using integrated gate structure to drive the gate hard, using buffer layer structure and transparent anode emitter technology, which has the on-state characteristics of thyristor and the switching characteristics of transistor.

IGCT adopts buffer structure and shallow emitter technology to reduce the dynamic loss by about 50%. UAD149A0011 has the characteristics of large current, high voltage, high switching frequency, high reliability, compact structure and low loss.

Integrated gate commutated thyristor is a kind of high-power semiconductor device. UAD149A0011 integrates gate drive circuit and gate commutated thyristor. Compared with traditional gate commutated thyristors, integrated gate commutated thyristors have lower turn-off time and power consumption, and do not require absorbing circuits. It works as follows:

When the anode A of the integrated gate converter thyristor is connected to the positive end of the power supply, and the cathode K is connected to the negative end of the power supply through the load, the positive voltage is borne, and the switch S in the control circuit is disconnected, and the thyristor is not enabled. When the switch S in the control circuit is closed so that the control pole also has a forward voltage, the thyristor starts to conduct.

Once the thyristor is on, the UAD149A0011 control pole loses control. Even if the voltage on the control pole is removed (that is, the switch S is disconnected), the thyristor remains on. However, if the control pole is added to the reverse voltage, regardless of whether the anode and cathode in the main circuit is a forward voltage or reverse voltage, the thyristor will not be switched on.

The integrated gate commutated thyristor has the advantages of low on-on loss and on-on loss, and can operate at high frequency. It is widely used in high voltage and high current situations.

公司介紹：
成都陽光不斷創(chuàng)新致力于提升停產(chǎn)的自動化零件供應(yīng)水平，無論客戶身處何地，無論所需配件多么稀有，我們總能將客戶與所需產(chǎn)品緊密連接 ，成都陽光零部件覆蓋廣泛。
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Company Introduction:
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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