Impedance calculator.

Copyright © 1997 Harry Broeders.

Enter your own electrical network and the applet will draw the impedance graph! See here for instructions how to enter an electrical network.

Sorry if you see this... your brouwser isn't capable of running Java applets!

Instructions how to enter an electrical network.

This impedance calculator can only calculate the impedance graph for passive networks. This means that the only components you can use are:

• Resistor. Entered as R(value).
• Capacitor. Entered as C(value).
• Coil. Entered as L(value).

A value can be entered in scientific notation. For example 1E3 or 3E-6. The decimal dot is not supported so a value of 1.25 should be entered as 125E-2.

With the three components R, C and L you can create electrical networks by connecting them in parallel (entered as // or /) or in series (entered as +). // has precedence over +. You can use ( and ) to specify the precedence.

For example: The following electrical network:

Should be entered as: (R(100)+L(3E-4))//(R(100)+C(1E-6))

This applet is also available at:

• WebPhysics.Davidson.edu/Applets/Applets.html click here: WebPhysics.Davidson.edu/Applets/Impedance/Impedance.html or for another variant click here: webphysics.davidson.edu/course_material/py230l_wc/demo/illustration31_8.html 

This applet is listed in:

• Martindale's Calculartiors on-line center.