3-D Circuit Animations
Below are some ready-made 3D circuit animations.
To make your own, or to view a wider variety of animations with
flexibility, see the section on the free 3D
circuits animation toolbox for MATLAB
To restart an animation, press the reload button on your browser.
Internet Explorer seems to run these animations
slower than they are designed to run; Mozilla and Netscape work better.
- Voltage is represented by vertical position; the z-axis.
Nodes are also shaded in color to represent voltage. Red is
positive, black is zero, and yellow is negative.
- Current is represented by green arrows. The length
of the arrow corresponds to the magnitude of currents. Observe
how the lengths add up at a node to verify that KCL is being upheld.
There may not be arrows on all branches of the circuit where current is
flowing. When current is not shown explicitly in some branch, you
can usually figure it out from KCL.
- What's making the voltage change? When you see the
voltage of a voltage source change, you know that it is a time-varying
voltage source, pre-programmed to change in the way you see it varying.
Nothing connected to it can make a voltage source change its
voltage--that's the definition of a voltage source.
The same holds for current sources and switches--if you see
the current of a current source changing, it is because it was
programmed or externally controlled to change over time as you see it
doing. Or is you see a switch switching between on and off, it is
again programmed or externally controlled to switch in that pattern.
However, diodes switch as a result of the applied current or voltage,
and cannot be externally controlled or programmed. And if you see
a change in the voltage across a current source, or a change in the
current through a voltage source, that is also determined by the
circuit, and cannot be externally controlled or programmed in the
Jump to categories of circuits:
Animations: See the newer set here
For comments or questions email:
This page last updated on June 9, 2002