US 11,658,569 B2
Load line regulation for power converters
Keng Chen, Acton, MA (US); Charles Amirault, Nashua, NH (US); and James Garret, Windham, NH (US)
Assigned to Infineon Technologies Austria AG
Filed by Infineon Technologies Austria AG, Villach (AT)
Filed on Jun. 8, 2020, as Appl. No. 16/895,760.
Prior Publication US 2021/0384821 A1, Dec. 9, 2021
Int. Cl. H02M 3/155 (2006.01); H02M 1/32 (2007.01)
CPC H02M 3/155 (2013.01) [H02M 1/32 (2013.01)] 21 Claims
OG exemplary drawing
1. A method of implementing a load line in a power converter, the method comprising:
adjusting a target voltage used to regulate an output voltage of the power converter, based on sensed load current information that has delay between updates; and
responsive to detecting a load current transient and before the next update to the sensed load current information becomes available, adjusting the target voltage based on blind load current information,
wherein the sensed load current information is not updated during at least a portion of the detected load current transient, and
wherein adjusting the target voltage based on the blind load current information comprises:
scaling a sensed load current information update available prior to detecting the load current transient, to generate a blindly scaled current value; and
adjusting the target voltage based on the blindly scaled current value.