EE 332 Lesson 0702 - 1 ©UW EE TC Chen Microelectronic...

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Unformatted text preview: 7/2/2010 1 ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock EE 332 DEVICES AND CIRCUITS II WEEK 2 BIPOLAR JUNCTION TRANSISTORS ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock SIMPLIFIED MODEL FOR CIRCUIT ANALYSIS UW EE RB Darling/TC Chen )] [exp( T BC R S V v I  )] [exp( T BE S V v I  ) exp( ) exp( ) 1 1 ( ) exp( ) exp( ) exp( ) 1 1 ( ) exp( T BC S T BE S E T BC R S T BE S B T BC R S T BE S C V v I V v I i V v I V v I i V v I V v I i             Goal: to find V CE,sat  Find V BC,sat and V BE,sat first    ( -  )/  F and (  +  )/(  R +1)  V BE,sat and V BC, sat can be found, Saturation : Both EBJ and CBJ are forward bias. i C i B i E C (N) B(P) E (N) i R i C = i F – (i R +i BR ) i F i B = i BF +i BR i E = (i F +i BF )-i R ©UW EE TC Chen Microelectronic Circuit Design Jaeger/Blalock SIMPLIFIED MODEL FOR CIRCUIT ANALYSIS UW EE RB Darling/TC Chen )] [exp( T BC R S V v I  )] [exp( T BE S V v I  Saturation : Both EBJ and CBJ are forward bias....
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EE 332 Lesson 0702 - 1 ©UW EE TC Chen Microelectronic...

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