Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
The concept of voltage divider bias, a common method used to stabilize the q-point of a transistor circuit. It discusses how a simple voltage divider in the base circuit provides a set value of vb, making ic relatively independent of the transistor's current gain. However, the document also acknowledges the effects of transistor loading and the need for a small base current for the transistor to operate in the active region.
Typology: Slides
1 / 56
This page cannot be seen from the preview
Don't miss anything!
Most common method mainly because of its stable Q point.
It uses a simple voltage divider in the base circuit to provide a set value of VB
The Ic is controlled solely by the emitter resistor RE. This means that Ic is relatively independent of the transistors current gain Docsity.com
Voltage Divider Bias If we ignore the effects of R (^) base for the moment, the value of VB is found as
Note:
The Effects Of Transistor Loading
We know that in order for a transistor to operate in the active region, there
current. As soon as we draw any current from the point at V , we “load down” the circuit and the voltage V will drop to a value of less than 2.29 V.
