Partial delayed feedback control and its DSP implementation

This paper proposes the partial delayed feedback control for chaos circuits with interrupt characteristics. The control input is added during the certain period defined by the switching policy. The total consumed energy may be saved compared with the conventional delayed feedback control system. This method is easily realized by a digital signal processor (DSP) since the delayed information can be generated by storing the state of the system into the memory in the DSP with a sufficient high-speed sampling rate. As an illustrative example, we apply the control method to a chaotic piecewise smooth circuit.