test #1 fall 2003

test #1 fall 2003 - Name:_________________________________

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Unformatted text preview: Name:_________________________________ SSN:___________________________________ DO NOT WRITE ON THE BACK OF THESE PAGES. 1.) 2.) EE 3220 Test 1 Fall 2003 Design a BJT current source to produce 2mA for a differential amplifier, given VEE = ­10 V. What is total DC power absorbed by all components in the current source? Design a BJT current mirror to produce 2mA for a differential amplifier, given VEE = ­10 V. What is total DC power absorbed by all components in the current source? 3.) 4.) If a differential amplifier requires 2mA for proper DC biasing, design a BJT Widlar source that will produce this current. Given V CC = 10 V and VEE = ­ 10 V. What is total DC power absorbed by all components in the current source? Find the two­port equivalent model for the circuit below. This includes finding rin, rout, av, and VBIAS 5.) Find the bias point for the circuit below. What is the gain? Why would this circuit NOT be one we should consider for an analog signal amplifier? 6.) Compute the power delivered to the load for this cascaded amplifier network. How could the power delivered be improved further? 7.) What is the swing range and maximum differential mode signal that can be applied without distortion for the differential amplifier below? 8.) Find the DC bias point, gain and output resistance for the voltage follower below. 9.) Why would an FET differential amplifier be more desirable than a BJT differential amplifier? 10.) What are the advantages and disadvantage of adding a resistor to the emitter of a BJT amplifier? 11.) 12.) What uncontrollable factors affect βF of a BJT? What are two major effects that need to be considered if an FET’s VSB ≠ 0? ...
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This note was uploaded on 01/25/2012 for the course EE 3220 taught by Professor Audiffred during the Spring '06 term at LSU.

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test #1 fall 2003 - Name:_________________________________

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