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Changing Device Parameters in PSpice

Changing Device Parameters in PSpice. Device Model: Diode. PSpice. Simplest diode model in PSpice uses only the ideal diode equation More complex diode models in PSpice include: Parasitic resistances to account for the linear regions

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Changing Device Parameters in PSpice

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  1. Changing Device Parameters in PSpice Device Model: Diode

  2. PSpice • Simplest diode model in PSpice uses only the ideal diode equation • More complex diode models in PSpice include: • Parasitic resistances to account for the linear regions • Breakdown voltage with current multipliers to map the knee of the current around the breakdown voltage. • Temperature dependences of various parameters. • Parasitic capacitances to account for the frequency dependence.

  3. PSpice • Device Simulation packages • Capture • Schematics • The calculations performed will be identical when using the same device models. • The GUIs are not the same. • There are minor differences in how the programs interprets some changes that you make to the device models.

  4. PSpice Schematics

  5. Device Parameters

  6. PSpice Capture

  7. Editing Device Model • The device parameters can be changed, but will only be changes for the file that you are currently working on. • In Schematics, the changes only apply to the specific part that you had highlighted when you made the changes. • In Capture, the changes apply to all components in the file that share the same part model. • To simulate the Ideal Diode Equation, you can delete the other parameters or set them to zero or a very large number, depending on what would be appropriate to remove their effect from the simulation

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