Ch10s - Chapter 10 Problem Solutions 10.1 a I1 = I 2 = 0 2V...

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Chapter 10 Problem Solutions 10.1 a. ( ) ( ) 1 2 1 2 2 2 3 2 3 1 2 2 3 1 2 0 2 2 2 2 1 2 2 BE C BE C C BE V V I I R R V I R V I R R V V V V I R R R R I V V V V R R R γ γ γ γ γ γ = = + + = + + = + + = + + b. ( ) 1 2 3 3 and 1 1 2 2 2 or 2 BE C BE C V V R R I V V V V R V I R γ γ γ = = = + = c. ( ) ( ) ( ) 3 3 1 2 1 2 1 2 1 2 10 2 mA = 2.5 k 2 2 0.7 10 2 mA 4.3 k 2.15 k C I R R I I R R R R R R − − = = − − = = = + = = = + 10.2 (a) 1 1 ln C BE T S I V V I = (i) ( ) 6 1 1 14 10 10 10 A, 0.026 ln 0.5388 V 10 10 A REF C BE O I I V I μ μ × = = = = = (ii) ( ) 6 1 1 14 100 10 100 A, 0.026 ln 0.5987 V 10 100 A REF C BE O I I V I μ μ × = = = = = (iii) ( ) 3 1 1 14 10 1 , 0.026 ln 0.6585 V 10 1 mA REF C BE O I I mA V I = = = = = (b) 2 1 REF O I I β = + (i) ( ) 1 2 6 14 10 9.615 A ln 2 1 50 9.615 10 0.026 ln 10 0.5378 V O O O BE BE T S I I I V V V I μ = = = = + × = = (ii) ( ) 6 1 14 100 96.15 10 96.15 A 0.026 ln 2 10 1 50 0.5977 V O O BE I I V μ × = = = + =
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