The circuit can be broken down into three parts:

- The inductor
*L (*together with its associated resistance r)*,*the resistor*R*, and the capacitors*C1*and*C2*make up a conventional linear oscillation circuit. With the rest of the circuit shorted out, this part would give damped oscillations. - The op-amp and associate resistors have the effect of a
**negative**resistance of size*-R1.*This is still a linear circuit element - it does not by itself give chaos, although it acts as the source of energy for the dynamics. - The diode pair gives the nonlinearity in the circuit. The
diodes simply serve to switch in the resistance
*R2*in parallel with the resistance*-R1*when the voltage gets larger than the switch on voltage.

The combined effect of B and C is to give a **nonlinear negative
resistance** of value *-R _{1}* for V<V

with the current-voltage characteristics of the effective nonlinear resistance given by

For DC signals the capacitors act as open circuits, and the
inductor as a short circuit, so the operating point
*I _{0},V_{0}* is given by one of the two
intersections of the line of slope

Last modified Saturday, September 7, 1996 Michael Cross