# HW_4 - D D T D nV v s D e I i = with the parameter values...

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EE 438 homework #4 Diode Circuits and Models The objective of problems 1 through 6 is to a the diode circuit at right with increasingly complex models. The accuracy of the results should increase with the complexity of the model. In each problem compute the value of D i and v to 4 significant digits. nalyze D V 5 . 1 = DD E D i - D v + = 500 R 1. The diode is an ideal diode. Ideal D0 V D r A K 2. The diode has the Piecewise Linear (PWL) model shown at right with and . V 7 . 0 0 = D V 0 = D r 3. The diode has the PWL model at right with V 7 . 0 0 = D V and = 10 D r . 4. The attached graph shows the characteristic for the diode. Use a graphical analysis to determine and . D D v i vs. D i D v 5. The diode current, i , and voltage, v , are related by the equation

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Unformatted text preview: D D T D nV v s D e I i = with the parameter values . The thermal voltage, V , is expressed by V 1 and Amperes 10 14 = = − n I s T T = kT / q where k =1.38 x 10-23 J/ ° K is Boltzmann’s constant, T is the absolute temperature and q = 1.6x10-19 is the charge on an electron. Use T = 300 ° K in an iterative analysis to determine i and . Continue the iteration until the 4 D D v th digit in the numerical values of and does not change. D i D v 6. Use the Multisim simulator to obtain the values of i and . Use virtual components accessed with the blue buttons. D D v 7. Text problem 3.67...
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HW_4 - D D T D nV v s D e I i = with the parameter values...

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