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Date: 21 November 2009
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A Circuit With A Free - Wheeling Diode (PSPICE Simulation)  

Details of A Circuit With A Free - Wheeling Diode (PSPICE Simulation)

The circuit that is used for Pspice simulation is shown below. The nodes are numbered and the components have been labeled.

1_400_11

A Pspice program to simulate the circuit shown above is presented now.

* Half-wave Rectifier with free-wheeling diode and with RL Load
* A problem to find the diode current
VIN 1 0 SIN(0 340V 50Hz)
D1 1 2 DNAME
L1 2 3 31.8MH
R1 3 0 10
D2 0 2 DNAME
.MODEL DNAME D(IS=10N N=1 BV=1200 IBV=10E-3 VJ=0.6)
.TRAN 10US 60.0MS 20.0MS 10US
.PROBE
.OPTIONS(ABSTOL=1N RELTOL=.01 VNTOL=1MV)
.END

The waveforms obtained are presented now. Since the program specifies that the waveforms be displayed from the second cycle, there is no output for the first 20 ms. The waveform of voltage at the cathode of both diodes is shown below.


The waveform of current through diode D2 is shown below.
3_400_05

The waveform of current through load resistor is shown below. It is the sum of both diode currents.
4_400_09

 

The waveform of voltage across the inductor is shown below.

5_400_07

The advantage with Pspice is the simplicity of the program. In addition, the devices used are also simulated using the spice models.

Category: Electronics
Type: Glossaries and Dictionaries
Tags: Wheeling Diode - PSPICE Simulation -
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