Patent ID: 7831935

Claim:
A computer program product including a design file representing a circuit design structure embodied in a non-transitory computer-readable medium, which when executed by a computer, produces the circuit design structure comprising: one or more power islands, each power island of said one or more voltage power islands including: a local storage capacitor coupling a local power grid to a local ground grid; and a functional circuit connected between said local power grid and said local ground grid; a global storage capacitor coupling a global power grid to a global ground grid, each local ground grid common to said global ground grid; one or more switches, each switch selectively connecting said global power grid to a single and different corresponding local power grid; and a power dispatch unit adapted to open and close said one or more switches, said power dispatch unit comprising: a power island “ready for power” sensor circuit coupling each of said one or more power islands to a power switch controller, said power switch controller adapted to independently open and close said one or more switches; and a voltage sensor circuit having inputs connected between said global power grid and said global ground grid and an output connected to said power switch controller.