EE 332 Lesson 0802 - EE 332 DEVICES AND CIRCUITS II WEEK 7...

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©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock EE 332 DEVICES AND CIRCUITS II WEEK 7
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©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock AC-COUPLED MULTI-STAGE AMPLIFIER / 2 ND STAGE DC ANALYSIS R 1 R 2 R 4 R 3 R E2 C 3 R L C 2 C E1 R E1 R C1 C 1 V CC Q 2 Q 1 v o v i Step 1: DC analysis DC effects on the dash box Two “4 - resistor” BJT circuits 10
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©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock AC-COUPLED MULTI-STAGE AMPLIFIER / 2 ND STAGE DC ANALYSIS 4 2 34 2 3 4 8.53 ( / / ) 51.75 EQ CC EQ R V V V RR R R R k 2, 2 2 7.83 37.6 ( 1) 51.75 71 2.2 EQ BE ON B EQ E VV IA R R k k and 22 2.63 2.67 CE I mA I mA  Solve RHS loop 2 2 2 11.88 CE CC RC RE V V V V V Since V CE2 =11.88V >V CE,sat =0.1V The BJT operates in Forward Active region R EQ V EQ R E2 Q1 V CC v o I C2 I E2 I B2 11
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©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock AC-COUPLED MULTI-STAGE AMPLIFIER / 2 ND STAGE SMALL SIGNAL PARAMETERS Step 2: Small Signal Parameters: 2 2 2 2 2 2 2 2.63 105 25 70 665 105 81.88 31.13 2.63 C m T m A CE o C
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This note was uploaded on 10/12/2010 for the course IT 23211 taught by Professor Tai during the Summer '10 term at Punjab Engineering College.

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EE 332 Lesson 0802 - EE 332 DEVICES AND CIRCUITS II WEEK 7...

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