產品詳情
蘇州創(chuàng)芯奇半導體有限公司
電壓測方法
可控硅為什么其有“以小控大”的可控性呢？下面我們用圖表-27來簡單分析可控硅的工作原理。
首先，可以把從陰極向上數(shù)的第一、二、三層看面是一只NPN型號晶體管，而二、三四層組成另一只PNP型晶體管。其中第二、第三層為兩管交迭共用。當在陽極和陰極之間加上一個，又在控制極G和之間（相當BG1的基一射間）輸入一個正的觸發(fā)信號，BG1將產生電流Ib1，經放大，BG1將有一個放大了β1倍的電流IC1。因為BG1集電極與BG2基極相連，IC1又是BG2的基極電流Ib2。BG2又把比Ib2（Ib1）放大了β2的集電極電流IC2送回BG1的基極放大。如此循環(huán)放大，直到BG1、BG2完全導通。實際這一過程是“一觸即發(fā)”的過程，對可控硅來說，觸發(fā)信號加入，可控硅立即導通。導通的時間主要決定于可控硅的性能。
優(yōu)勢代理產品為大功 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、 明緯開關電源等國外功率模塊。
在國 內嚴格按照國際標準生產：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超快恢復二極管、電焊 機專用模塊、固態(tài)繼電器、固態(tài)調壓器、型材散熱器等電力半導體器件。
本公司堅持以‘誠信為本、質量首位、價格合理’的經營理念
期待與貴公司的合作，一步一個腳印，做大做強，再創(chuàng)輝煌！
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