Patent ID: 7274181
Filing Date: 2007-09-25
Classification: H02M

Abstract:
1. Droop-control circuitry for a multiphase power converter comprising: voltage-undershoot detection circuitry to determine a number of multiphase switching signals of a multiphase power converter at a first state; voltage-overshoot detection circuitry to determine a number of the multiphase switching signals at a second state; and clamping circuitry, wherein voltage-undershoot detection circuitry provides an output to the clamping circuitry when the number of multiphase switching signals at the first state exceeds a first predetermined number causing the clamping circuitry to temporarily clamp an output of the power converter to a high voltage level, and wherein voltage-overshoot detection circuitry provides an output to the clamping circuitry when the number of multiphase switching signals at the second state exceeds a second predetermined number causing the clamping circuitry to temporarily clamp the output of the power converter to a low voltage level.