三极管的主要特点是具有电流放大功能，以共发射极接法为例（信号从基极输入，从集电极输出，发射极接地），当基极电压UB有一个微小的变化时，基极电流IB也会随之有一小的变化，受基极电流IB的控制，集电极电流IC会有一个很大的变化，基极电流IB越大，集电极电流IC也越大，反之，基极电流越小，集电极电流也越小，即基极电流控制集电极电流的变化。但是集电极电流的变化比基极电流的变化大得多，这就是三极管的放大作用。IC 的变化量与IB变化量之比叫做三极管的放大倍数β（β=ΔIC/ΔIB, Δ表示变化量。），三极管的放大倍数β一般在几十到几百倍。dzsc/18/8519/18851931.jpg
Company Profile
With ‘Good Faith, Go-aheadism, Pragmaticism and Unity’ as its guideline, Guangzhou Suntron Electronics Co., Ltd is a joint-stock company devoted to the R&D of new-type electronic organs and electronic packaging materials and integrating the production, sales and trading into an organic whole. Its main products have passed the ISO9001-2000 and ISO 14001 certifications. Its products are widely used in such fields as E-communication, digital home appliances, electronic toys and car electronics.
Currently, in addition to the production of the electronic packaging materials, humidity-dependent resistors and gas sensors, the company also acts as the agent of the whole series of products of such brands as Feng Hua, TDK and Chang Jiang. It provides the customers with timely and convenient backup services, maintaining its advantages in quality, price, delivery time and service. Aiming at best quality at lowest cost for the customers, it tries its best to meet customers’ demands and fully carries out the customers’ satisfaction management.
