p spice intro, ece210, hcmut

PSPICE SIMULATION

ANALOG SIGNAL PROCESSING

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T.A : Trung Mai Van

Email : [email protected] Instructor : Dr Juan Alvarez

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Bias Point Simulation

Analog Signal Processing 2012

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How about the dependent sources ?

We can use ideal models already provided in Analog Library come with Pspice.

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Voltage – Dependent Voltage Source Voltage – Dependent Current Source

How about other dependent sources ? Check yourself the library.

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Thevenin and Norton circuit


Find the Thenevin and Norton equivalent circuit for the below ones. 1. Open-circuit voltage can be found by placing a capacitor at the

terminals that you want determine the Thevenin’s equivalent circuit.

2. Short-circuit current can be determined by short-circuiting the terminals that you want to determine the Norton’s equivalent circuit.

3. The Thevenin or Norton resistance is determined by test signal method. Apply an independent current source of 1Adc at the terminals that need the equivalent Thevenin or Norton and check the voltage. In this case, the voltage is, in fact, the equivalent resistance.

Note : Perform all of the simulations in Bias Point mode.

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Thenevin and Norton circuit


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Thenevin and Norton circuit


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DC Sweep Simulation


Usage : When you want to test the variations of a quantity in the circuit due to the variations of a source or a particular independent quantity. Quantity : voltage, current or power.

You are asked to determine the variation of the current flows through resistor R4 due to the variation of the voltage of V1.

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DC Sweep Simulation


Step 1 : Draw the circuit with all of the values shown. Do not forget to add a ground node, otherwise your circuit will be floated. The independent voltage source should be added with a nominal value. Step 2 : Create a new simulation profile and choose the simulation mode as DC Sweep.

Sweep variable : V1 Range : 0 Vdc – 10 Vdc with an increment of 0.1Vdc.

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DC Sweep Simulation


Refer to [3] for more functionalities of the plotting in Pspice.

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DC Sweep Simulation


Voltage and Current of all

nodes and loops.

Supported Functions in Pspice.

Enter your expected drawing expression here.

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AC Sweep Simulation


Step 1 : Draw the circuit with all of the values shown. Do not forget to add a ground node, otherwise your circuit will be floated. The independent voltage source should be added with a nominal value. Step 2 : Create a new simulation profile and choose the simulation mode as AC Sweep.

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AC Sweep Simulation


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Transient Simulation


Step 1 : Draw the circuit with all of the values shown. Do not forget to add a ground node, otherwise your circuit will be floated. The independent voltage source should be added with a nominal value. Step 2 : Create a new simulation profile and choose the simulation mode as transient.

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References


[1] James W. Nilsson and Susan A. Riedel, “Electric Circuits”. 8th Edition, Prentice Hall, 2008. [2] Muthuswamy and Bharathwaj, “Using dependent sources in Pspice”. [Course Notes][online]. http://www-inst.eecs.berkeley.edu/~ee100/sp05/lecture_notes/PSPICEDependentSources.pdf

[3] Pspice Tutorial.[Online] https://dspace.ist.utl.pt/bitstream/2295/39541/1/PSPICE_tutorial.pdf

p spice intro, ece210, hcmut

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