Chapter 3 Diodes4 - /2/12 . Chapter 3 Diodes Physical...

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S J T U J. C h e n 1 3/2/12 Physical Operation of Diodes Chapter 3 Diodes
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3/2/12 SJTU J. Chen 2 Simplified Diode Model
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3/2/12 SJTU J. Chen 3 Piecewise-linear model of the diode forward characteristic and its equivalent circuit representation . Simplified Diode Model
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3/2/12 SJTU J. Chen 4 The constant-voltage-drop model of the diode forward characteristics and its equivalent-circuit representation. Constant-Voltage-Drop Model
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3/2/12 SJTU J. Chen 5 Development of the diode small-signal model. Note that the numerical values shown are for a diode with n = 2. Small-Signal Model rd
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3/2/12 SJTU J. Chen 6 Incremental resistance: * The signal amplitude sufficiently small such that the excursion at Q along the i-v curve is limited to a short, almost linear segment. Small-Signal Model ) 2 , 1 ( , = = n I nV r DQ T d
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3/2/12 SJTU J. Chen 7 High frequency model Related to the bias Unable to be simply substitute by ideal ones. High-Frequency Model
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3/2/12 SJTU J. Chen 8 Zener Diode Model Z Z Z Z r I V V + = 0
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3/2/12 SJTU J. Chen 9 Method of Analysis Graphical Analysis Load line Diode characterist ic Q operating point Visualization
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3/2/12 SJTU J. Chen 10 Load line RL i v i v V DD/ R V DD Slope= -1/ R L
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This note was uploaded on 03/02/2012 for the course EI 207 taught by Professor Chengjianping during the Fall '10 term at Shanghai Jiao Tong University.

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Chapter 3 Diodes4 - /2/12 . Chapter 3 Diodes Physical...

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