Example_Analysis of a Complex Diode Circuit

# Example_Analysis of a Complex Diode Circuit -...

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8/18/2005 Example_Analysis of a Complex Diode Circuit.doc 1/5 Jim Stiles The Univ. of Kansas Dept. of EECS Example: Analysis of a Complex Diode Circuit Consider this circuit with two ideal diodes : Let’s analyze this circuit and find , , , 1 1 2 2 and i i D D D D i i i i v v ! Remember, we must accomplish each of the five steps: Step 1: ASSUME that both D 1 and D 2 are “on” (might as well!). Step 2: ENFORCE the equalities 1 2 0 D D i i v v = = , by replacing each ideal diode with a short circuit. 2 i D v + 2 i D i 10.0 V 1 i D v + 1 i D i -10.0 V R 1 =10K R 2 =5K

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8/18/2005 Example_Analysis of a Complex Diode Circuit.doc 2/5 Jim Stiles The Univ. of Kansas Dept. of EECS Step 3: ANALYZE the resulting circuit, and find 1 2 and i i D D i i . Begin with KCL : 1 2 i i D D i i i = + where i = and 2 i D i = Therefore, 1 i D i = 2 =0 i D v + 2 i D i 10.0 V 1 i D i -10.0 V R 1 =10K R 2 =5K 1 0 D i v + = i
8/18/2005 Example_Analysis of a Complex Diode Circuit.doc 3/5 Jim Stiles The Univ. of Kansas Dept. of EECS Step 4: Now we must CHECK inequalities to see if our assumptions are correct!

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