US 12,445,055 B2
Low power green mode for multi-phase power converters
Basil Almukhtar, Dooradoyle (IE)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Apr. 14, 2023, as Appl. No. 18/300,646.
Prior Publication US 2024/0348142 A1, Oct. 17, 2024
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2007.01); H02M 3/157 (2006.01)
CPC H02M 3/1584 (2013.01) [H02M 1/0032 (2021.05); H02M 1/0041 (2021.05); H02M 3/157 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-phase power converter, comprising:
a digital ramp pulse modulation controller for providing a plurality of trigger ramp signals in response to an error signal when the multi-phase power converter is not in a green mode, wherein at least a portion of said digital ramp pulse modulation controller is inactive in the green mode;
a digital constant on-time controller for providing on-time thresholds and off-time thresholds when the multi-phase power converter is in the green mode; and
a driver stage that provides a plurality of drive signals to a corresponding plurality of power stages in response to corresponding trigger ramp signals when the multi-phase power converter is not in the green mode and in response to the on-time thresholds and the off-time thresholds when the multi-phase power converter is in the green mode.