Thursday, March 31, 2011

Lab 7 - PSpice Tutorial #2: Thevenin & Norton Equivalents

In this lab we dove into some of the other useful tools in PSpice.  To start, we went further into DC Nodal Analysis and added the use of the voltage ViewPoint and current IProbe tools which allow you to find readings at particular circuit locations(pic 1 below).  Then, we got a feel for the DC Sweep tool which helps enable circuit design flexibility by calculating voltages and currents when a source source is swept over various ranges (pics 2-5 below). 



Pic 1: DC Nodal analysis with Viewpoints and IProbe
Pic 2: DC Sweep of V1 in above circuit

Pic 3: DC Sweep Plot - Thevenin (Vth = 20V, Rth = 6 Ohm)


Pic 4: DC Sweep Plot - Norton (In = 3.335A, Gn = .17S)


Pic 5: DC Sweep Plot - Max Power Transfer (Pmax = 250mW)

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