N_Diode_N5 - Diodes (05) Reference: Microelectronic...

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1 Diodes (05) Reference: Microelectronic Circuits: 5 th Edition By Adel S. Sedra & Kenneth C. smith
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2 REAL DlODE OR SILICON DIODE 3.3 MODELING THE DIODE FORWARD CHARACTERISTIC . .. 3.3.4 The need for Rapid Analysis (simpler diode models needed) The iterative analysis procedure utilized in the example above is simple and yields accurate results after two or three iterations. Nevertheless, there are situations where more time is required. Specifically, if one is doing a pencil-and paper design of a relatively complex circuit, then rapid circuit analysis is a necessity. Through quick analysis, the designer is able to evaluate various possibilities before deciding on a suitable circuit design; one must be content with lesser accuracy, in that case. More accurate analysis can be postponed until a final or almost-final design is obtained. For the almost-final design, aid of a computer circuit-analysis program such as SPICE (see Section 3.9) may also be undertaken. The results of such an analysis can then be used to further refine or "fine tune“ the design. To speed up the analysis process, we must find simpler models for the diode forward characteristic.
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3 REAL DlODE OR SILICON DIODE 3.3 MODELING THE DIODE FORWARD CHARACTERISTIC . .. 3.3.5 The Piecewise-Linear Model The analysis can be greatly simplified if we can find linear relationships to describe the diode terminal characteristics. An attempt in this direction is
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N_Diode_N5 - Diodes (05) Reference: Microelectronic...

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