US 12,068,690 B2
Control circuitry for controlling a power supply
Malcolm Blyth, Edinburgh (GB)
Assigned to Cirrus Logic Inc., Austin, TX (US)
Filed by Cirrus Logic International Semiconductor Ltd., Edinburgh (GB)
Filed on Aug. 22, 2023, as Appl. No. 18/453,747.
Application 18/453,747 is a continuation of application No. 17/245,188, filed on Apr. 30, 2021, granted, now 11,784,565.
Claims priority of provisional application 63/058,241, filed on Jul. 29, 2020.
Claims priority of application No. 2015631 (GB), filed on Oct. 2, 2020.
Prior Publication US 2023/0396167 A1, Dec. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02M 3/158 (2006.01); G01R 19/165 (2006.01); H02M 1/00 (2006.01); H02M 3/157 (2006.01); H03K 3/0233 (2006.01); H03K 5/24 (2006.01)
CPC H02M 3/158 (2013.01) [G01R 19/16538 (2013.01); H02M 1/0009 (2021.05); H02M 3/157 (2013.01); H03K 3/02337 (2013.01); H03K 5/24 (2013.01)] 23 Claims
OG exemplary drawing
 
22. Circuitry for estimating whether an average current through an inductor of a power converter over a first phase of the power converter corresponds to a target average current value for the first phase, the circuitry comprising:
comparison circuitry configured to compare a signal indicative of current through the inductor during the first phase to a signal indicative of the target average current value; and
detection circuitry configured to detect, based on a control signal output by the comparison circuitry, a time at which the current through the inductor is equal to the target average current value,
wherein the circuitry is configured to output an indication of whether the current through the inductor corresponds to the target average current value based on the time at which the current through the inductor is equal to the target average current value.