Question 2.SP.27: For the resistor and battery values of Problem 2.26, use SPI......

For the resistor and battery values of Problem 2.26, use SPICE methods to simulate the function generator circuit of Fig. 2-41(b).    Implement using default diode parameters.    Determine the values of input voltage v for which the two break points occur.

2.41
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The describing netlist code appears below:

Prb2_27.CIR
v    1 0 DC 0V
D1 1 2 DMOD
R1 2 3 6kohm
V1 0 3 DC 5V
D2 1 4 DMOD
R2 4 5 3kohm
V2 5 0 DC 10V
.DC v -10V 25V 0.25V
.MODEL DMOD D ( )
.PROBE
.END

After executing  <Prb2_27.CIR>,  the Probe feature is used to plot the resulting i-v characteristic of Fig. 2-42, where it is seen that the nonideal diodes have resulted in shifts of the – 5  \text{V} and -10  \text{V} break points of Fig. 2-41(a) to -4.54  \text{V} and 10.61  \text{V}, respectively.

2.42

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