Lab10 - ECE 322L: Microelectronics Lab Lab #10: BJT...

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ECE 322L: Microelectronics Lab Lab #10: BJT Common-Emitter Amplifier Objectives: Examine the properties of a simple BJT amplifier. Materials: Voltmeter 12VDC Voltage supply Function Generator Oscilloscope Solderless breadboard Hookup wire One 22k resistor (use 5% tolerance, not higher precision) One 39k resistor (use 5% tolerance, not higher precision) One 3.3k resistor (use 5% tolerance, not higher precision) One 4.7k resistor (use 5% tolerance, not higher precision) One 10μF capacitor One 2N2222A NPN transistor Setup: Construct the circuit shown below using R B1 = 39k , R B2 = 22k , R C = 4.7k , and R E = 3.3k , and a 2N2222A as the NPN transistor. Test the bias voltages on B, C, and E of the transistor to make sure they are reasonable ( V BE and V CE should be positive). V O R B1 R B2 R C R E 12 V 12 V V i 10 uF - + I C
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Background: In a previous lab a four resistor bias network was examined. The circuit in "Setup" above is just that bias network with an input signal added which is coupled to the amplifier
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This note was uploaded on 10/11/2011 for the course ECE 322 taught by Professor Staff during the Spring '08 term at Boise State.

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Lab10 - ECE 322L: Microelectronics Lab Lab #10: BJT...

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