Help and Documentation

Getting started with DoCircuits

Measuring devices

After the circuit is simulated in DoCircuits, the next step would be to analyze the output and this is done with the help of devices and features like plotter, voltmeter, ammeter,oscilloscope and voltage label. Let us see each of them in detail.


The plotter as shown below is made up of many features:

1.    On your top left side is the “plot against” drop-down menu. This will allow you to select the x-axis of the plotter – either "time" or some other parameter of your choice.

2.    Next to that are the variables used in plotting the graph. Each will be assigned a colour to differentiate from the other variablesin the graph. Clicking on the variable will activate or deactivate it in thegraph. For example the label “Pulse” has been deactivated by clicking on it

3.    In the bottom of the graph and your left hand side are the x and y axes’ properties. Click on them and you will get the properties as shown.

4.    The name as well as type of the axis can be changed. Clicking on the log button will make the axis logarithmic. This is ideal when plotting frequency response and the x-axis is to be shown as logarithmic.

5.    The axis range can also be changed by inserting the desired start and end points to be displayed.

6.    After range has been changed click on “Auto-fit Graph” to revert back to the default range. 

Voltmeter and Ammeter:

1.    These devices can be used just like their real life counter-parts. Drag and drop them on the grid from the components panel. Connect them across the points across which you would want to measure the current or voltage. Remember that voltmeters should be connected in parallel and ammeters should be connected in series.

2.    Right click on the voltmeter or ammeter and select “Rename” to change the name of the device. This will open the following window where you can edit the name.

3.    Double-clicking on the voltmeter or ammeter will open the simulation result for that particular device. Remember that simulation should have been run previous to that.

Voltage Label:

1.    This can be used just like a voltmeter the only difference being that there is only one node instead of the two terminals. The other node is implicit and connected to ground.

2.    After dragging it from the components panel, connect it to the desired point in the circuit.

3.    Right-clicking on the label will have all the same options like Rename, Rotate or Flip etc.