公开(公告)号：US20180123453A1

公开(公告)日：2018-05-03

申请号：US15801241

申请日：2017-11-01

Applicant: Lion Semiconductor Inc.

Inventor： Alberto Alessandro Angelo Puggelli ,  Thomas Li ,  Hans Meyvaert ,  Bertram J. Rodgers ,  Zhipeng Li ,  Wonyoung Kim

IPC: H02M3/07 ,  H02M1/08 ,  H02M3/155 ,  H02J7/00 ,  G05F3/02

CPC classification number: H02M3/07 ,  G05F3/02 ,  H02J7/0052 ,  H02J7/007 ,  H02J2007/0059 ,  H02M1/08 ,  H02M3/155 ,  H02M2001/0045

Abstract: A voltage regulator system, comprising: a switched capacitor (SC) regulator that operates at a switching frequency and receives an input voltage; and a controller configured to control an operation of the SC regulator by adjusting the switching frequency of the SC regulator based on efficiency. In some embodiments, the switching frequency is swept to determine a best efficiency. In some embodiments, the switching frequency is swept at each of a plurality of values for the input voltage. In some embodiments, the system includes further one or more switches in series with the SC regulator. In some embodiments, the SC regulator includes an output terminal that is coupled to a battery.

公开(公告)号：US10243457B2

公开(公告)日：2019-03-26

申请号：US15801241

申请日：2017-11-01

Applicant: Lion Semiconductor Inc.

Inventor： Alberto Alessandro Angelo Puggelli ,  Thomas Li ,  Hans Meyvaert ,  Bertram J. Rodgers ,  Zhipeng Li ,  Wonyoung Kim

IPC: H02M3/155 ,  H02M3/07 ,  G05F3/02 ,  G05F3/04 ,  H02J7/00 ,  H02M1/08 ,  H02M1/00

Abstract: A voltage regulator system, comprising: a switched capacitor (SC) regulator that operates at a switching frequency and receives an input voltage; and a controller configured to control an operation of the SC regulator by adjusting the switching frequency of the SC regulator based on efficiency. In some embodiments, the switching frequency is swept to determine a best efficiency. In some embodiments, the switching frequency is swept at each of a plurality of values for the input voltage. In some embodiments, the system includes further one or more switches in series with the SC regulator. In some embodiments, the SC regulator includes an output terminal that is coupled to a battery.

公开(公告)号：US10720832B2

公开(公告)日：2020-07-21

申请号：US16264079

申请日：2019-01-31

Applicant: Lion Semiconductor Inc.

Inventor： Hans Meyvaert ,  Thomas Li ,  Fred Chen ,  John Crossley ,  Zhipeng Li ,  Bertram J. Rodgers

IPC: H02M3/07 ,  H02M7/483 ,  H02M1/00 ,  H02M3/158

Abstract: Circuits comprising: a capacitor; switches that, when State0, couple the capacitor in parallel with the load and, when State1, couple the capacitor in series with the load, wherein a first of the switches connects the capacitor to ground when in State0 and wherein a second of the switches connects the capacitor to an input voltage when in State1; a third switch, wherein a first side of the third switch is connected to the capacitor identically to one of the first switch and the second switch (OFWSW), wherein the third switch switches identically to the OFWSW, wherein the third switch is smaller than the OFWSW; a first resistor connected to the second side of the third switch; and a hardware processor that measures a current flowing through the first resistor and estimates the current provided to the load based on the current measured as flowing through the first resistor.

公开(公告)号：US20200144908A1

公开(公告)日：2020-05-07

申请号：US16264079

申请日：2019-01-31

Applicant: Lion Semiconductor Inc.

Inventor： Hans Meyvaert ,  Thomas Li ,  Fred Chen ,  John Crossley ,  Zhipeng Li ,  Bertram J. Rodgers

IPC: H02M3/07 ,  H02M1/00 ,  H02M3/158

Abstract: Circuits comprising: a capacitor; switches that, when State0, couple the capacitor in parallel with the load and, when State1, couple the capacitor in series with the load, wherein a first of the switches connects the capacitor to ground when in State0 and wherein a second of the switches connects the capacitor to an input voltage when in State1; a third switch, wherein a first side of the third switch is connected to the capacitor identically to one of the first switch and the second switch (OFWSW), wherein the third switch switches identically to the OFWSW, wherein the third switch is smaller than the OFWSW; a first resistor connected to the second side of the third switch; and a hardware processor that measures a current flowing through the first resistor and estimates the current provided to the load based on the current measured as flowing through the first resistor.