EE 332 Lesson 0712 - 7/12/2010 BJT CIRCUIT DC (LARGE...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
7/12/2010 1 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock EE 332 DEVICES AND CIRCUITS II WEEK 4 BIPOLAR JUNCTION TRANSISTORS ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock BJT CIRCUIT DC (LARGE SIGNAL) V CC /R C V CC I C V CE I B I C and V CE are the Q-point of the BJT The Q-point controls: 1. Operation region 2. Small signal parameters 3. Voltage gain, input and output resistances 4. Maximum output and input signal amplitude DC biasing (Large signal) establishes the operation point a transistor 4 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock SMALL SIGNAL OPERATION AND MODEL / SMALL SIGNAL ANALYSIS OF DIODES D D d D D d v V v and i I i  Source v S contains both a DC bias part and a small signal ac part: v S : DC bias + ac signal v S = V DC + v s Total=bias + signal v S R s i D v D Expect that the diode current and voltage also contain a DC bias part and a small signal ac part. 5 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock SMALL SIGNAL OPERATION AND MODEL / SMALL SIGNAL ANALYSIS OF DIODES v S R s i D v D ( 1) D T v V DS i I e  S D s D v i R v ( 1) D T V V I I e Diode’s characteristics are given by: Total diode current Total diode voltage Circuit characteristics are: In the absence of a signal v s , can resolve these equations for the bias value (DC): S D s D V I R V 6 ©UW EE TC Chen
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

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.

Page1 / 3

EE 332 Lesson 0712 - 7/12/2010 BJT CIRCUIT DC (LARGE...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online