set_3_BJT_models

set_3_BJT_models - class notes, M. Rodwell, copyrighted...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
class notes, M. Rodwell, copyrighted 2011 ECE 2C, notes set 3: BJT Models Mark Rodwell University of California, Santa Barbara rodwell@ece.ucsb.edu 805-893-3244, 805-893-3262 fax
Background image of page 1

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

View Full DocumentRight Arrow Icon
class notes, M. Rodwell, copyrighted 2011 Why study bipolar transistors ? sheets. data the from n informatio limited only even with done be can designs good such that are itics characters their and available, widely bjts discrete Quality MOSFETs. using projects lab ry satisfacto design to difficult very therefore is It n. informatio design limited give sheets data the available, they as Insofar projects. lab for the needed form discrete in the obtain also mosfets Quality ICs. ions communicat optical frequency radio in widely used , converters digital - analog resolution high faster in used still however ansistors Bipolar tr ICs. analog of 95% probably ICs, digital in dominant 99.999% being common, more much now MOSFETs
Background image of page 2
class notes, M. Rodwell, copyrighted 2011 Terminal Characteristics: NPN bipolar transistor   Coulomb ) 10 ( 6022 . 1 charge electron re temperatu absolute in Joule/Kelv ) 10 ( 38 . 1 constant s Boltzmann' voltage" thermal " the called is re) temperatu (room Kelvin 300 at mV 8 . 25 / where / 1 biased) reverse junction base (collector 0 for 19 23 / q T k V q kT V I I e I I V T T E b V V es E cb T be Vbe Vcb Ic Ib Ie
Background image of page 3

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

View Full DocumentRight Arrow Icon
class notes, M. Rodwell, copyrighted 2011 Terminal Characteristics: PNP bipolar transistor reversed. simply are polarities voltage and directions current , ansistor bipolar tr PNP For the Vbc Veb Ic Ib Ie   / 1 then ), 0 ( biased reverse is junction base collector the if Again, / E b V V es E bc I I e I I V T eb
Background image of page 4
class notes, M. Rodwell, copyrighted 2011 Voltage Polarities and Notation normally. operated is r transisto the when POSITIVE are ues their val so defined riables current va and voltage DC possible, whenever Further, a voltage. defining le any variab with associated diagram circuit the on signs - drawing by voltages of polarity the recommend I Instead, correct. polarities keep to difficult often it notation, textbook standard the this Although . to leads This where right, the to notation e taught th been have may You eb be b e e b V V V V V V V V Vbe Vcb Vbe Vbc
Background image of page 5

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

View Full DocumentRight Arrow Icon
class notes, M. Rodwell, copyrighted 2011
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/28/2011 for the course ECE 2C taught by Professor Yue during the Fall '08 term at UCSB.

Page1 / 24

set_3_BJT_models - class notes, M. Rodwell, copyrighted...

This preview shows document pages 1 - 7. Sign up to view the full document.

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