120 likes | 252 Views
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
E N D
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 • 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.
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.
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