2009/2010 EEE510 Handout - Bipolar 1. Ic Ib Ie Figure 1. Transistor Operation A silicon npn transistor with =0.99 and ICBO = 10 A is connected as shown in Figure 11 1. Calculate Ic, Ie and Vce. 2009/2010 2. 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 ). 3. 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? 2009/2010 4. 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 properly?
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