描述

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。雙向可控硅的主要缺點(diǎn)是承受電壓上升率的能力較低。這是因?yàn)殡p向可控硅在一個(gè)方向?qū)ńY(jié)束時(shí)，硅片在各層中的載流子還沒(méi)有回到截止?fàn)顟B(tài)的位置，必須采取相應(yīng)的保護(hù)措施。雙向可控硅元件主要用于交流控制電路，如溫度控制、燈光控制、防爆交流開(kāi)關(guān)以及直流電機(jī)調(diào)速和換向等電路?？煽毓柙诰S持電流以上一直處于開(kāi)通狀態(tài)，關(guān)斷電流高，控制困難，關(guān)斷速度較慢。逆變環(huán)節(jié)中，在LCI（負(fù)載換相逆變器）中SCR具有優(yōu)異表現(xiàn)，可做到超大功率，電壓高、電流也大。二極管（Diode，不可控整流器件）和SCR（半可控）整流均不需要PMW即可滿足兩象限變頻器工作，PWM需要用IGBT（全控）等器件。

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. The main drawback of bidirectional thyristor is its low ability to withstand voltage rise rate. This is because when the bidirectional thyristor completes conduction in one direction, the charge carriers in each layer of the silicon wafer have not yet returned to the cut-off state, and corresponding protective measures must be taken. Bidirectional thyristor components are mainly used in AC control circuits, such as temperature control, lighting control, explosion-proof AC switches, and DC motor speed regulation and commutation circuits. The thyristor is always in an open state above the maintenance current, with high turning off current, difficult control, and slow turning off speed. In the inverter stage, SCR has excellent performance in LCI (Load Commutated Inverter), which can achieve ultra high power, high voltage, and high current. Diode (uncontrollable rectifier) and SCR (semi controllable) rectifiers do not require PMW to meet the operation of two quadrant inverters, while PWM requires devices such as IGBT (fully controlled).

ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181、5SHY35L4520、5SHY5045L0020、ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181、5SHY35L4520、5SHY5045L0020ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181

5SHY35L4520、5SHY5045L0020ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181、pm511v16、5SHY35L4520、5SHY5045L0020ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181、5SHY35L4520、5SHY5045L0020 ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181，5SHY35L4520、5SHY5045L0020ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181、5SHY35L4520、5SHY5045L0020ABB IGCT模塊5SHY4045L0004/5SHY6545L0001 AC10272001R0101 5SXE10-0181、5SHY35L4520、5SHY5045L0020

公司介紹：
成都陽(yáng)光不斷創(chuàng)新致力于提升停產(chǎn)的自動(dòng)化零件供應(yīng)水平，無(wú)論客戶身處何地，無(wú)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(yáng)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



始終實(shí)現(xiàn)更多的交付，無(wú)論是零件、服務(wù)還是速度