The Source/Load Toolbar
The Source/Load toolbar is used to place a source or load in a selected segment on a given wire. Sources and loads can also be edited with this toolbar.
By right clicking on any part of a wire a pop-up menu > will be displayed. Click on the Source/Load command from the pop-up menu to display the Source/Load toolbar, Fig. 1.
The Source/Load command can also be accessed from the main toolbar or going to main menu > Edit > Source/Load (Ctrl + Ins). For this command to be enabled, first click on the Select Wire button (arrow icon) on the main toolbar and then left click on the wire where you want to place the source or load.
The Source/Load toolbar has the following components:
Each position of the slider corresponds to the position of a segment in the selected wire. So, the slider allows us selecting a particular segment on the wire. At the right corner of this toolbar, the position of the selected segment is shown. The segment position as a percentage of the wire length is also shown. It is measured from the starting point of the wire to the middle point of the selected segment, and it is defined as follows:
% position = 100 (position / wire length)
The 50% button
This button positions the slider at the middle of the wire. Often discrete sources and loads are added at the center of wires, so click on this button to select the segment at the wire center quickly. Note that the wire must have an odd number of segments for it to have a segment at its center.
The Add Source button
Click on the Add Source button to display a dialog box for adding a source to the selected wire segment, Fig. 2. This dialog box allows us setting the type of source, its amplitude, phase and internal impedance.
The Add Load button
Click on the Add Load button to display a dialog box for adding a load to the selected wire segment, Fig. 3. A load can represent a resistor in series with an inductor (RL) or a resistor in series with a capacitor (RC).
The Delete button
If the selected segment has a source or a load on it, the Delete button will be enabled. Click on this button to delete the source or load placed in the segment.
The Modify button
If the selected segment has a source or a load on it, the Modify button will be enabled. Click on this button to display the Modify dialog box, where the source or load can be edited.
The Exit button
Click on the Exit button to close the Source/Load toolbar.