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L12_L11Part3 Rpi_Rmu Equations_1

L12_L11Part3 Rpi_Rmu Equations_1 - 6.4 in 4nd Edition...

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6.4 in 4 nd Edition Equations for R π = R 10 and R μ = R 20 Zubair Rehman
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2 Adding Emitter Resistance R E R π = R 10 & R μ = R 20
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3 Equivalent Equations For R 10 & R 20 E gm E S R g R R r R + + = 1 || π π Set R’ s = R b + r x & R E = R e 10 1 || R R g R r R r R e m e x b = + + + = π π
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4 Set R’ s = R b + r x ; R E = R e ; R C = R c , r e = r π / ( β+129 ) / 1 )( / 1 ( / 1 / 1 e E S x c m e E c r R R r R g r R R R + + + + + = μ 20 ( ) ( }] ( { || ) [( ( ) )( ( }] ( { || [ ( ] ( [ } ( { ] ( [ ( } ( { }] ( { [ } ( { } ( { ( 1 )( / 1 ( 1 ( 1 ) ( 1 )( / 1 ( / 1 ( R R R r r R R R R r R R r r R R R r R R R r R R r R R R r R R R r R R R r R R r R R R r R R R r R R r R R R R r R R R r R R R R R R g R R R R R r R r g R r R R e x b e s b C e b e s e s C e s E s C e s C e s e s E s C e s e S C u E S C e s c u E s c m e c E s c m e c = 129 + + + + + + 129( + + + 129 + + + = 129 + + + + 1 + + + 129 + + = 129 + + + + 129 + + + + 129 + + + 129 + + = 129 + + + + 129 + + + 129 + + + = 129 +
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