公开(公告)号：US20220231603A1

公开(公告)日：2022-07-21

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: H02M3/158 ,  H02M1/00 ,  H02M1/32 ,  H02M1/08

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.

公开(公告)号：US20230042883A1

公开(公告)日：2023-02-09

申请号：US17962870

申请日：2022-10-10

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jason W. LAWRENCE ,  Graeme G. MACKAY ,  Sakkarapani BALAGOPAL

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

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：US20220029538A1

公开(公告)日：2022-01-27

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

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：US20220029537A1

公开(公告)日：2022-01-27

申请号：US17149338

申请日：2021-01-14

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jason W. LAWRENCE ,  Graeme G. MACKAY ,  Theodore M. BURK ,  Sakkarapani BALAGOPAL

IPC: H02M3/158

Abstract: In accordance with embodiments of the present disclosure, a power conversion system may include a power converter configured to receive an input voltage and generate an output voltage, a bypass switch arranged in parallel with the power converter and arranged to couple the input voltage to the output voltage when the bypass switch is activated, and a control circuit configured to control the power converter and the bypass switch based on the output voltage.