Read More
Date: 23-10-2020
1523
Date: 18-5-2017
1198
Date: 21-10-2020
1385
|
NPN BIASING
The normal method of biasing an npn transistor is to have the emitter more negative than the collector. In most cases, the emitter is at or near zero potential while the collector is connected to a source of positive dc voltage. This is shown by the connection of the battery in Fig. 1. Typical voltages range from 3 V to approximately 50 V.
The base is labeled “control” because the flow of current through the transistor depends on the base bias voltage, denoted EB or VB, relative to the emitter-collector bias voltage, denoted EC or VC.
Fig. 1. Typical biasing of an npn transistor.
|
|
مخاطر خفية لمكون شائع في مشروبات الطاقة والمكملات الغذائية
|
|
|
|
|
"آبل" تشغّل نظامها الجديد للذكاء الاصطناعي على أجهزتها
|
|
|
|
|
تستخدم لأول مرة... مستشفى الإمام زين العابدين (ع) التابع للعتبة الحسينية يعتمد تقنيات حديثة في تثبيت الكسور المعقدة
|
|
|