Emitter bias, Electrical Engineering

Emitter bias:

596_Emitter bias.png

Figure: Emitter bias

While a split supply (dual power supply) is accessible, this biasing circuit is the very much effective, and gives zero bias voltage at the emitter or collector for load. The negative supply VEE is employed to forward-bias the emitter junction by RE. The positive supply VCC is employed to reverse-bias the collector junction. Just only two resistors are essential for the common collector stage and 4 resistors for the common emitter or common base stage.

We know that,

VB - VE = Vbe

If RB is sufficiently small, base voltage will be almost zero. Hence emitter current is,

IE = (VEE - Vbe)/RE

The operating point is independent of β if RE >> RB


Good stability of operating point identical to voltage divider bias.


This type can just only be used while a split (dual) power supply is available.

Posted Date: 1/10/2013 7:28:32 AM | Location : United States

Related Discussions:- Emitter bias, Assignment Help, Ask Question on Emitter bias, Get Answer, Expert's Help, Emitter bias Discussions

Write discussion on Emitter bias
Your posts are moderated
Related Questions
dear sir, when i am going to simulate my model in matlab i am getting the following error : the derived input for the integrator is inf or nan at time xxxxx. try to reduce the step

Q. Explain about Elementary Direct-Current Machines? A preliminary discussion of dc machines, including Equations. The location of the brushes on the commutator arrangement con

What is FMS? Illustrate the components of Flexible Manufacturing System? Discuss the different kinds of Material Handling and Storage Systems?

Define Johnson Counters to Produce a Time Delay? The "serial in-serial out" shift register can be used as a time delay device. The amount of delay able to be controlled by:

What is the main difference between 16 bit and 32 bit versions of C/C++ while using in line assembler. The 32-bit applications are written by using Microsoft Visual C/C++ for t

Q. A four-pole dc generator is lap wound with 326 armature conductors. It runs at 650 r/min on full load, with an induced voltage of 252 V. If the bore of themachine is 42 cmin dia

The rectangular pulse train of Figure (a) consists of pulses of height A and duration D. Such pulse trains are employed for timing purposes and to represent digital information. Fo

The input to the satellite system of Figure 1 is a step function θ c (t) = 5u(t) in degrees. As a result, the satellite angle θ(t) varies sinusoidally at a frequency of 10 cycles p

left child right sibling datd