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EE331HW5solutions

# EE331HW5solutions - EE-331 Devices and Circuits 1 Prof R B...

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ON OFF OFF +10V +5V 0.0V -5V 8.2k 12k 10k (-0.25V) (+5.45V) (+9.35V) 475 µ A I = 0 I = 0 ON ON OFF +10V +5V 0.0V -5V 3.3k 6.8k 2.4k (-0.65V) (+6.08V) (+9.35V) 0.99mA 0.99mA 1.81mA 0.82mA I = 0 (a) (b) 475 µ A 475 µ A Problem 3.77 using a constant voltage drop diode model with V on = 0.65 V: ON ON OFF +10V +5V 0.0V -5V 8.2k 12k 10k (0.0V) (+5.94V) (+10.0V) 495 µ A 495 µ A 500 µ A 5 µ A I = 0 ON ON OFF +10V +5V 0.0V -5V 3.3k 6.8k 2.4k (0.0V) (+6.73V) (+10.0V) 0.99mA 0.99mA 2.08mA 1.09mA I = 0 (a) (b) Problem 3.76 using an ideal diode model: Problem 1: Problems 3.76 and 3.77 of Jaeger and Blalock. Work only circuits (a,b). ε r 11.7 := V T 0.025 volt := n i 10 10 cm 3 := ε o 8.854 10 14 farad cm 1 := q 1.602 10 19 coul := k B 8.62 10 5 eV K 1 := µ s 10 6 sec := ms 10 3 sec := eV 1.602 10 19 joule := µ m 10 6 m := First, define some useful units and constants: Homework # 5 Solutions EE-331 Devices and Circuits 1 Prof. R. B. Darling EE-331 HW#5 Solutions Page 1 R. B. Darling

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