公开(公告)号：US20230038245A1

公开(公告)日：2023-02-09

申请号：US17393103

申请日：2021-08-03

Applicant: Analog Devices, Inc.

Inventor： Hua Chen

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00 ,  H02M1/14

Abstract: A switching converter circuit comprises a converting circuit stage, an error amplifier, and a control circuit. The converting circuit stage includes a magnetic circuit element and a switching circuit configured to convert an input voltage to a regulated output voltage by charging and discharging the magnetic circuit element using activation pulses generated using a system clock signal. The error amplifier generates a control voltage using the output voltage. The control circuit varies time between successive activation pulses according to the control voltage, and the successive activation pulses are synchronized to the system clock signal.

公开(公告)号：US11848610B2

公开(公告)日：2023-12-19

申请号：US17393103

申请日：2021-08-03

Applicant: Analog Devices, Inc.

Inventor： Hua Chen

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/14 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009 ,  H02M1/0035 ,  H02M1/0041 ,  H02M1/08 ,  H02M1/14

Abstract: A switching converter circuit comprises a converting circuit stage, an error amplifier, and a control circuit. The converting circuit stage includes a magnetic circuit element and a switching circuit configured to convert an input voltage to a regulated output voltage by charging and discharging the magnetic circuit element using activation pulses generated using a system clock signal. The error amplifier generates a control voltage using the output voltage. The control circuit varies time between successive activation pulses according to the control voltage, and the successive activation pulses are synchronized to the system clock signal.

公开(公告)号：US20230155475A1

公开(公告)日：2023-05-18

申请号：US17656362

申请日：2022-03-24

Applicant: Analog Devices, Inc.

Inventor： Bin Zhang ,  Hua Chen ,  Min Chen

IPC: H02M1/00 ,  H02J7/34 ,  H02J7/00 ,  H02M3/158

CPC classification number: H02M1/0045 ,  H02J7/345 ,  H02J7/00712 ,  H02M1/0009 ,  H02M3/158 ,  H02J2207/20 ,  H02J2207/50

Abstract: An apparatus comprising a regulator circuit that includes a linear input current regulating circuit configured to regulate input current to the regulator circuit when an output voltage of the regulator circuit is less than an input voltage of the regulator circuit; and a switching regulating circuit configured to regulate the input current when the output voltage is greater than the input voltage and less than a target regulated output voltage and regulate the output voltage when the output voltage reaches the target regulated output voltage. The linear input current regulating circuit is also used to disconnect the input from output during shutdown.