公开(公告)号：US20190265743A1

公开(公告)日：2019-08-29

申请号：US15903974

申请日：2018-02-23

Applicant: Lion Semiconductor Inc.

Inventor： Thomas Li ,  Zhipeng Li ,  Alberto Puggelli ,  Hans Meyvaert

IPC: G05F3/16 ,  H02M3/07

Abstract: Circuits comprising: a first capacitor(C1); a first switch(S1) having a first side coupled to a VIN and a second side coupled to a first side of C1; a second switch(S2) having a first side coupled to the second side of S1; a third switch(S3) having a first side coupled to a second side of S2 and a second side coupled to a second side of C1; a fourth switch(S4) having a first side coupled to a second side of S3 and a second side coupled to a VSUPPLY, wherein: in a first state, S1 and S3 are off, and S2 and S4 are on; in a second state, S1 and S3 are on, and S2 and S4 are off; and at least one of a control of S1, a control of S2, a control of S3, and a control of S4 is coupled to a time-varying-slew-rate signal.

公开(公告)号：US20190214905A1

公开(公告)日：2019-07-11

申请号：US15868496

申请日：2018-01-11

Applicant: Lion Semiconductor Inc.

Inventor： Alberto Puggelli ,  Minbok Lee ,  Hans Meyvaert ,  Zhipeng Li

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/32

Abstract: An inductor; a first switch having a first side connected to a first voltage source (VS1); a second switch having a first side connected to a second side of the first switch (2SS1), and a second side connected to a first side of the inductor (1SI); a third switch having a first side connected to the 1SI; a fourth switch having a first side connected to a second side of the third switch (2SS3), and a second side connected to a second voltage source (VS2); a fifth switch having a first side connected to the 1SI, and a second side connected to the VS1 and/or the VS2; a first capacitor having a first side connected to the 2SS1, and a second side connected to the 2SS3; and a second capacitor having a first side connected to a second side of the inductor, and a second side connected to the VS2.

公开(公告)号：US10355593B1

公开(公告)日：2019-07-16

申请号：US15868496

申请日：2018-01-11

Applicant: Lion Semiconductor Inc.

Inventor： Alberto Puggelli ,  Minbok Lee ,  Hans Meyvaert ,  Zhipeng Li

IPC: H02M3/158 ,  H02M1/32

Abstract: An inductor; a first switch having a first side connected to a first voltage source (VS1); a second switch having a first side connected to a second side of the first switch (2SS1), and a second side connected to a first side of the inductor (1SI); a third switch having a first side connected to the 1SI; a fourth switch having a first side connected to a second side of the third switch (2SS3), and a second side connected to a second voltage source (VS2); a fifth switch having a first side connected to the 1SI, and a second side connected to the VS1 and/or the VS2; a first capacitor having a first side connected to the 2SS1, and a second side connected to the 2SS3; and a second capacitor having a first side connected to a second side of the inductor, and a second side connected to the VS2.

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.