公开(公告)号：US11522460B2

公开(公告)日：2022-12-06

申请号：US17152053

申请日：2021-01-19

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jason W. Lawrence ,  Graeme G. Mackay ,  Sakkarapani Balagopal

IPC: H02M3/158 ,  G01R19/165 ,  H03K5/24 ,  H02M1/00

Abstract: A method for controlling a current associated with a power converter may comprise controlling the current based on at least a peak current threshold level for the current and a valley current threshold level for the current, and further controlling the current based on a duration of time that the power converter spends in a switching state of the power converter.

公开(公告)号：US11837956B2

公开(公告)日：2023-12-05

申请号：US17478433

申请日：2021-09-17

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Hasnain Akram ,  Graeme G. Mackay ,  Lingli Zhang ,  Ruoxin Jiang ,  Sakkarapani Balagopal ,  Theodore M. Burk

IPC: H02M1/32 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009 ,  H02M1/32

Abstract: A method for determining if an inductor coupled to a switching network has been electrically shorted may include applying a voltage across the inductor for a predetermined period of time, controlling an impedance in an electrical path of a voltage source generating the voltage and the inductor, sensing an inductor current through the inductor, comparing the inductor current with a predetermined current threshold, and determining whether the inductor has been electrically shorted based on the inductor current, the predetermined current threshold, and the predetermined period of time.