蘇州創(chuàng)芯奇半導(dǎo)體有限公司

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防護(hù)方案防止柵極電荷 積 累及柵源電壓出 現(xiàn)尖峰 損壞IGBT——可在G極和E極之間設(shè)置一些保護(hù)元件，如下圖的電阻RGE的作用，是使柵極積累電荷泄放  (其阻值 可取5 kΩ);兩 個(gè) 反向串聯(lián)  的穩(wěn)壓二極 管 V1  和V2，是為了 防止柵  電壓尖峰  損壞IGBT。另外，還有實(shí)現(xiàn)控制電路部分與被驅(qū)動(dòng)的IGBT之間的隔離 設(shè)計(jì)，以及 設(shè)計(jì)適合 柵極的  驅(qū)動(dòng)脈沖電  路等。然而  即使  這樣，在實(shí)際使用 的工業(yè)環(huán)境中，以 上方案仍然具 有比較高的產(chǎn)品失效率——有時(shí)甚至?xí)?%。相關(guān)的實(shí)驗(yàn)     數(shù)據(jù)和研究表  明：這和瞬態(tài)浪涌、靜電  及高頻電  子干擾有著緊密的關(guān)  系，而穩(wěn)壓管在 此的響應(yīng)時(shí)間 和耐 電流 能力遠(yuǎn)遠(yuǎn)  不足，從而 導(dǎo)致I  GBT過  熱而損壞

優(yōu)勢(shì)代理產(chǎn)品為大功率平板式晶閘管、可控硅、二極管、IGBT，

品牌如EUPEC、西門康、西碼、三菱、ABB、三社、IR、 明緯開關(guān)電源等國(guó)外功率模塊。

在國(guó)內(nèi)嚴(yán)格按照國(guó)際標(biāo)準(zhǔn)生產(chǎn)：ZP型普通整流管、ZK型 快速整流管、KP型普通晶閘管、

KS型雙向晶閘管、KK型快速晶閘管、KG型高頻晶閘管、橋式整流器、電力模塊、肖特基模塊、

SF超快恢復(fù)二極管、電焊機(jī)專用模塊、固態(tài)繼電器、固態(tài)調(diào)壓器、型材散熱器等電力半導(dǎo)體器件。 

本公司堅(jiān)持以‘誠(chéng)信為本、質(zhì)量首位、價(jià)格合理’的經(jīng)營(yíng)理念

期待與貴公司的合作，一步一個(gè)腳印，做大做強(qiáng)，再創(chuàng)輝煌！  

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  原裝英國(guó)西碼可控硅專業(yè)供應(yīng);  

 

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