公开(公告)号：US10666135B2

公开(公告)日：2020-05-26

申请号：US16005594

申请日：2018-06-11

Applicant: Linear Technology LLC

Inventor： Xu Zhang ,  Jian Li ,  San Hwa Chee

IPC: H02M3/07 ,  G05F3/08 ,  H02M1/36 ,  H02M1/08

Abstract: Methods and systems of controlling a switched capacitor converter are provided. Upon determining that a voltage across a flying capacitor is above a first threshold, a first current is drawn from a first terminal of the flying capacitor by a first current source, and a second current is provided to a second terminal of the flying capacitor by a second current source. Upon determining that the voltage across the flying capacitor is below a second threshold, the first current is provided to the first terminal of the flying capacitor by the first current source, and the second current is drawn from the second terminal of the flying capacitor by the second current source. Upon determining that the voltage across the flying capacitor is above the second threshold and below the first threshold from the reference voltage, the first and second current sources are turned OFF.

公开(公告)号：US20180294717A1

公开(公告)日：2018-10-11

申请号：US16005594

申请日：2018-06-11

Applicant: Linear Technology LLC

Inventor： Xu ZHANG ,  Jian Li ,  San Hwa Chee

IPC: H02M3/07 ,  H02M1/08 ,  H02M1/36

Abstract: Methods and systems of controlling a switched capacitor converter are provided. Upon determining that a voltage across a flying capacitor is above a first threshold, a first current is drawn from a first terminal of the flying capacitor by a first current source, and a second current is provided to a second terminal of the flying capacitor by a second current source. Upon determining that the voltage across the flying capacitor is below a second threshold, the first current is provided to the first terminal of the flying capacitor by the first current source, and the second current is drawn from the second terminal of the flying capacitor by the second current source. Upon determining that the voltage across the flying capacitor is above the second threshold and below the first threshold from the reference voltage, the first and second current sources are turned OFF.

公开(公告)号：US10511234B2

公开(公告)日：2019-12-17

申请号：US16043062

申请日：2018-07-23

Applicant: Linear Technology LLC

Inventor： Jindong Zhang ,  Jian Li

IPC: H02M7/537 ,  H02M3/158 ,  H02M1/12 ,  H02M1/00 ,  H02M3/156

Abstract: A power interface system for reducing power variations includes multiple control circuits configured to control a plurality of switching regulators operating at different frequencies to provide a shared output power to a load. Each control circuit receives a power variation signal resulting from a power variation in the shared output power of the plurality of switching regulators, separates a respective frequency component from multiple frequency components of the power variation signal, and controls, based on the separated respective frequency component, a respective switching regulator of the plurality of switching regulators to source current to, or sink current from, the shared output power until the shared output power reaches a threshold level.