| Customer
support |
|
| How
can I select a different simulation model? |
|
| Many of the components within Circuit Wizard
and Livewire support a range of models. With models you can
simulate the different characteristics of named real-life components.
An
NPN transistor, for example, can be made to act like a BC108,
BFY51 or a ZTX300. |
| |
| Ideal simulation
models |
|
| Some components also feature an ideal model.
The ideal model is better for teaching basic concepts as it
provides a behaviour that is simplified or typical for that
component. |
|
| For digital components, the ideal model provides
a drive capability better than TTL with low power requirements
that are equivalent to CMOS. Any voltage below 0.3 VDD is treated
as a low signal and any voltage above 0.7 VDD is treated as
a high signal (between these the logic level is undefined). |
| |
| Selecting simulation
models |
|
| To select a simulation model, first drag onto
your design the component symbol, for example an NPN transistor. |
|
 |
To select a model in Circuit
Wizard,
then double-click with the left mouse button on the component
within your design and then choose from the Models list
in the window that appears. |
|
 |
To select a model in Livewire,
then click with the right mouse button on the component
within your design and then choose from the Models option
that appears. |
|
|
| If the simulation model you want to select
is not listed, please click here for
more information. |
| |
