PSpice Analysis Use PSpice to study the circuit shown in Figure 8.26 in Example 8.7 . The Zener diode has [latex]V_z[/latex] = 3.6 V. Find I and V when: a. [latex]V_S[/latex] = -1 V b. [latex]V_S[/latex] = 8 V c. [latex]V_S[/latex] = -10 V

The PSpice model editor is required to set up a Zener diode that meets the requirements for this circuit. To place a Zener diode in the circuit, go to “Place Part” (see Figure 2.65) and type “Dbreakz,” which is in the “BREAKOUT” library. Place the Zener diode as shown in Figure 8.88. Next, set the required reverse voltage for Zener diode. Click on the Zener diode or Dbreakz, and go to the menu “Edit” → “PSpice Model” (see the arrow) as shown in Figure 8.89. A model window with specific parameters will appear, as shown in Figure 8.90. Change the parameters in the window to the value shown in Figure 8.91 and save it. “BV” is the breakaway voltage or the reversed voltage, and “IBV” is the breakaway current. Run the bias point analysis (see Figure 2.73). The PSpice schematic solutions for each voltage source are shown in Figures 8.92 to 8.94. a. [latex]V_S[/latex] = -1 V b. [latex]V_S[/latex] = 8 V c. [latex]V_S[/latex] = -10 V

Question 8.32: PSpice Analysis Use PSpice to study the circuit shown in Fig...

Electrical Engineering: Concepts and Applications

PSpice Analysis

Use PSpice to study the circuit shown in Figure 8.26 in Example 8.7. The Zener diode has $V_z$ = 3.6 V. Find I and V when:

a. $V_S$ = -1 V

b. $V_S$ = 8 V

c. $V_S$ = -10 V

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The PSpice model editor is required to set up a Zener diode that meets the requirements for this circuit.

To place a Zener diode in the circuit, go to “Place Part” (see Figure 2.65) and type “Dbreakz,” which is in the “BREAKOUT” library.
Place the Zener diode as shown in Figure 8.88.
Next, set the required reverse voltage for Zener diode.
Click on the Zener diode or Dbreakz, and go to the menu “Edit” → “PSpice Model” (see the arrow) as shown in Figure 8.89.
A model window with specific parameters will appear, as shown in Figure 8.90.
Change the parameters in the window to the value shown in Figure 8.91 and save it. “BV” is the breakaway voltage or the reversed voltage, and “IBV” is the breakaway current.
Run the bias point analysis (see Figure 2.73). The PSpice schematic solutions for each voltage source are shown in Figures 8.92 to 8.94.

a. $V_S$ = -1 V

b. $V_S$ = 8 V

c. $V_S$ = -10 V