Patent ID: 9401639
Filing Date: 2016-07-26
CPC Classification: G06F,H02M

Claim Text:
1. A method capable of injection locking the phases of a peak-valley multiphase regulator having a plurality of phases, comprising: generating a plurality of ramp control signals for the plurality of phases, wherein for each of the plurality of phases, a corresponding one of the plurality of ramp control signals ramps in a first direction when a corresponding one of a plurality of pulse control signals is active and ramps in a second direction when the corresponding pulse control signal is inactive; comparing an output voltage error signal with a first one of the plurality of ramp control signals and providing a corresponding slope reset signal; periodically measuring a period of a first one of said plurality of pulse control signals and determining a phase delay by dividing each measured period by a number of phases; using transitions of the slope reset signal to develop a plurality of high side timing signals that are spaced apart by the phase delay and to develop a plurality of low side timing signals that are spaced apart by the phase delay; and injecting a corresponding one of the high side timing signals and a corresponding one of the plurality of low side timing signals into each of the plurality of phases which correspondingly develop the plurality of pulse control signals for multiphase operation.