Common Base Configuration

If the base is common to input and output circuits, it is known as common base configuration as shown in figure 1.

Fig. 1

For the PNP transistor largest current components are because of holes. Holes flow from emitter to collector  and  few  holes flow  down towards  ground  out  of base  terminal.  The  current directions are shown in the figure 1.

(I_E = I_C + I_B ).

For the forward biased junction, V_EB is positive and for the reverse biased junction V_CB is negative. Complete transistor can be described by following 2 relations, which give the input voltage V_EB and output current I_C in the terms of output voltage (V_CB) and input current IE. V_EB = f1(V_CB, I_E)

I_C= f2(V_CB, I_E)

The output characteristic:

The collector current I_C is entirely determined by input current I_E  and the V_CB  voltage. The relationship can be given in figure 2. It is a plot of I_C  and V_CB, with emitter current I_E as parameter. The curves are called as the output or collector or static characteristics. The transistor consists of the two diodes placed in series back to back (with the two cathodes connected together). The complete characteristic can be divided in main 3 regions.

Figure 2

Email based Electronics Devices and circuits assignment help - homework help at Expertsmind

Are you searching Electronics Engineering assignment help expert for help with Common Base Configuration questions?  Common Base Configuration topic is not easier to learn without any external help?  We at www.expertsmind.com offers free lecture notes for Electronics Devices and circuits assignment help and Electronics Devices and circuits homework help. Live tutors are available 24x7 hours for helping students in their Common Base Configuration related problems. We provide step by step Common Base Configuration question's answers with 100% plagiarism free content. We prepare quality content and notes for Common Base Configuration topic under Electronics Devices and circuits theory and study material. These are avail for subscribed users and they can get advantages anytime.

Why Expertsmind for assignment help

1. Higher degree holder and experienced experts network
2. Punctuality and responsibility of work
3. Quality solution with 100% plagiarism free answers
4. Time on Delivery
5. Privacy of information and details
6. Excellence in solving electronics engineering questions in excels and word format.
7. Best tutoring assistance 24x7 hours