Stabilization of a Network of the FitzHugh–Nagumo Oscillators by Means of a Single Capacitor Based RC Filter Feedback Technique

Figure 5

Circuit diagrams. (a) FHN asymmetric electronic oscillator. OA is an operational amplifier, for example, NE5534, and are the BAV99 type diodes,  V.  mH,  nF,  kΩ,  Ω,  Ω,  Ω (),  Ω (external resistor 220 Ω in series with the coil ohmic resistance 55 Ω), = (24 + i) kΩ, , and  V. (b) The first-order RC chain. Note the negative resistor “,” used to compensate the positive buffer resistor of the network (see Figure 1). The value of the capacitor is specified in the caption to Figure 7.

(a)

(b)