Copyright © 1997 Harry Broeders.

This page contains a Java Applet. A Java Applet is a small Java program that could run in a web browser. This technology is deprecated now and is no longer supported since 2017, see Wikipedia. But it is still possible to run this software in Google Chrome or Microsoft Edge by installing an extention or add-on, see: https://leaningtech.com/cheerpj-applet-runner/.

Enter your own electrical network and the applet will draw the impedance graph! See here for 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

can be entered in scientific notation. For
example *value*`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:

- https://www.compadre.org/physlets/circuits/illustration31_8.cfm
- https://www.merlot.org/merlot/viewMaterial.htm?id=74515

This applet has inspired several people: