EEE510 Handout - Bipolar
Figure 1. Transistor Operation
A silicon npn transistor with =0.99 and ICBO = 10 A is connected as shown in Figure
1. Calculate Ic, Ie and Vce.
Figure 2. Transistor performance
For the circuit Figure 2 , let =0.98 and VBE=0.7V. Find, base current, collector current
and Vout ( DC Voltage ).
Figure 3. Transistor Operation
What is Beta of a BJT?
Calculate Beta for this transistor ( =0.99) and when Ib = 10µA, 1mA and 100 mA,
what are the collector current?
Figure 4. Transistor performance
For the circuit Figure 4 , let =0.98 , ICBO = 0 and VBE=0.7V. Find, base current,
collector current and Vout, if R4 is changed to 9k Ohm, does transistor is biased