Patent ID: 8583388
Filing Date: 2013-11-12
Classification: G06F

Abstract:
1. A power integrity analyzer comprising: a parameter inputting unit that inputs parameters to corresponding a power-supply current waveform which indicates a variation of a power-supply current value on a time axis of an element; a conversion unit that converts the power-supply current waveform which indicates a variation of the power-supply current value on the time axis determined by the parameter to a power-supply current spectrum which indicates a variation of the power-supply current value on a frequency axis; an allowable value information storage unit that stores an allowable power-supply voltage fluctuation value of the element; and an impedance calculating unit that calculates a target impedance spectrum of the element which indicates the variation of impedance value on the frequency axis based on the power-supply current spectrum and the allowable power-supply voltage fluctuation value, wherein the parameter inputting unit comprising: a waveform display unit that displays the predetermined current waveform which indicates a variation of the power-supply current value on the time axis; a maximal current value designation unit that inputs a maximal value of the power-supply current in the current waveform as the parameter; a current value variation time designation unit that inputs a variation time necessary for a variation from a steady-state value of the power-supply current in the current waveform to the maximal value; and a periodic designation unit that inputs cycle corresponding to an operation clock of the element as the parameter.