Nonlinear Circuit Analysis via Perturbation Methods and Hardware Prototyping

Figure 10

The vector field of the logistic equation is represented as a flow on the $I_{\text{out}}$ axis. For positive values of $d{I}_{\text{out}}/dt\text{,}$$I_{\text{out}}$ is increasing and the flow is to the right. For negative values of $d{I}_{\text{out}}/dt\text{,}$$I_{\text{out}}$ is decreasing and the flow is to the left.