Patent ID: 7884591

Claim:
A system comprising: a switching power supply comprising: a circuit comprising at least two reactive components configured to provide an output voltage; said circuit of being switched from one output state to another output state, a switching component of switching said circuit between at least two switching states, said at least two switching states comprising said one output state and said another voltage state, a pulse width modulator of receiving a duly cycle and of driving the switching component in order to cause switching between two of said at least two switching states; and a nonlinear controller component of providing a duty cycle to said pulse width modulator, said duty cycle corresponding to at least one predetermined switching power supply state variable; said nonlinear controller component being operatively connected to receive as inputs at least one predetermined switching power supply state variable; a relationship between duty cycles and at least one predetermined switching power supply state variable being obtained by a predetermined method; wherein said predetermined method comprises optimizing a predetermined function of said duty cycles and internal states.