EE 332 Lesson 0727 - CB AMPLIFIER(NONINVERTING/GAIN VCC R2...

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7/27/2010 1 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock EE 332 DEVICES AND CIRCUITS II WEEK 6 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock CB AMPLIFIER (NONINVERTING)/ GAIN R s v S C1 R 1 R 2 R C R E Q1 C2 V CC R L v o Problem : Find the gain of CB amplifier Given : ,, 0.7 , 0.1 , 100 1: 1.5, 100 BE ON CE sat F RA v V V V Q VV     12 10 ; 30 ; 5.1 ; 2.2 ; 100 ; 1 ; 12 ; 10 CE s L CC R k R k R k R k R R k V V C C F 6 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock CB AMPLIFIER (NONINVERTING)/GAIN R s v S C1 R 2 R 1 R C R E Q1 C2 V CC R L v o ANSWER Step 1: DC analysis DC effects on the dash box 4-resistor BJT circuit 8 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock CB AMPLIFIER (NONINVERTING)/ GAIN R EQ V EQ R C R E Q1 V CC v o ANSWER Assuming BJT operating in forward active mode Theveninizing LHS circuit 1 3 ( / / ) 7.5 EQ CC EQ R V V V RR R R R k
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EE 332 Lesson 0727 - CB AMPLIFIER(NONINVERTING/GAIN VCC R2...

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