{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

12 BJT re Model - BJT Transistor Modeling small signal low...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
1 BJT Transistor Modeling small signal low frequency r e Equivalent Model Hybrid Equivalent Model
Background image of page 1

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

View Full Document Right Arrow Icon
2 Hi – Fi amplifier circuit design analysis frequency response transistor pn - diode n / p – type semiconductor field-effect transistor npn / pnp transistor semiconductor pn – diode applications low / high frequency response
Background image of page 2
3 npn / pnp Transistor Basic Principle DC Biasing Circuits
Background image of page 3

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

View Full Document Right Arrow Icon
Background image of page 4
5 Voltage - Divider Configuration Circuit Analysis DC!! Thevenin's Equivalent Voltage :- Thevenin's Equivalent Resistance :- CC Th V R R R V 2 1 2 + = 2 1 2 1 2 1 // R R R R R R R Th = + = Kirchoff’s voltage law :- 0 = - - - E E BE Th B Th R I V R I V E Th BE Th R R V V I B ) 1 ( + + - = β E Th BE Th E Th BE Th B C R R V V R R V V I I + - + + - = = β β β β 1 1 I BQ , I CQ , I EQ , V CEQ Quiescent Point Q-Point R C R 1 +V CC R E R 2 v out v in C 2 C 1 C 3 R C R 1 +V CC R E R 2 I B R C +V CC R E R Th V Th I B I C I E
Background image of page 5

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

View Full Document Right Arrow Icon
6 ?? with ac signal ?? in out v v Gain Voltage = in out i i Gain Current = in out p p Gain Power = R C R 1 +V CC R E R 2 v in C 2 C 1 C 3 I B V B v out i in i out v out v in p out p in i in i out
Background image of page 6
7 npn / pnp Transistor Basic Principle DC Biasing Circuits ac Signal Circuits ac Equivalent Transistor Model ac Small-Signal Analysis
Background image of page 7

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

View Full Document Right Arrow Icon
8 AC equivalent circuit Rearrange the circuit v o ac output signal R s source internal resistor v s ac source signal small signal C 1,2,3 short circuit (reactance
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}