Tutorial

Applet Tutorial

The applet shows three modes, auto demo mode, user mode and quiz mode, auto demo demonstrates the correspondence between the physical and equivalent circuit representations; the user mode integrates the quiz to test the user's understanding the virtual transformation in the visual way.
In the auto demo mode, do the following:

Observe the animation for the circuit components "extracting" from the device. Understand where it's from and where it goes.
Move the mouse over a specific region of the device, the area associated with the device function turns to lighter color, a bubble help shows a short tip for the region picked. The corresponding components in the equivalent circuit associated with the user-specified device region blink with a lighter color. The components' names are displayed nearby.
Move the mouse over a specific component in the equivalent circuit, the corresponding symbol appears in the physical representation of the device. A bubble help displays a tip for the component picked.

Select the user mode to get the whole diagram of the physical structure and the circuit diagram.

Move the mouse over the device. Observe the associated components highlighted in the circuit. Note that you can move over the small area on the junctions as well. This will show you the junctions with tip text and corresponding in the circuit.
When the mouse is over the circuit, the corresponding symbol displays in the physical structure. For r_p and r_o, the typical values are also displayed.
Check the checkbox "simplified by ignoring parasitic resistance" to view the simplified hybrid-pi model; Uncheck to restore to the full model.

Select the quiz mode, it pops up a message dialog window showing instruction for the next step. Click OK and do the following:

Follow the question pad and click your answer to the questions in the physical device or equivalent-circuit area.
Go to the next question util through all. Interrupt quiz by click quit and get help by clicking "Answer".
Examine your score.