公开(公告)号：US11736035B2

公开(公告)日：2023-08-22

申请号：US17498810

申请日：2021-10-12

Applicant: NuVolta Technologies (Shanghai) Co., Ltd.

Inventor： Fuchun Zhan ,  Cheng Liu

IPC: H02M7/483 ,  H02M1/00 ,  H02M1/10 ,  H02M3/07

CPC classification number: H02M7/4835 ,  H02M1/007 ,  H02M1/10 ,  H02M3/072 ,  H02M3/073

Abstract: A power converter includes a plurality of switches coupled between an input bus and an output bus, a full bridge coupled between the output bus and ground, and a plurality of capacitors coupled between the plurality of switches and the full bridge, wherein one capacitor of the plurality of capacitors is connected to a midpoint of one leg of the full bridge through a switch.

公开(公告)号：US20230238873A1

公开(公告)日：2023-07-27

申请号：US17582431

申请日：2022-01-24

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Pasotti ,  Laura Capecchi ,  Riccardo Zurla, JR. ,  Marcella Carissimi

IPC: H02M1/00 ,  H02M3/07

CPC classification number: H02M1/0045 ,  H02M3/073 ,  G11C13/0004

Abstract: A voltage regulator receives a reference voltage and generates a regulated voltage using a MOSFET having a gate terminal configured to receive a control voltage. A charge pump receives the regulated voltage and generates a charge pump voltage in response to an enable signal and a clock signal generated in response to the enable signal. The voltage regulator further includes a first switched capacitor circuit coupled to the gate terminal and configured to selectively charge a first capacitor with a first current and impose a first voltage drop on the control voltage in response to assertion of the enable signal. The voltage regulator also includes a second switched capacitor circuit coupled to the gate terminal and configured to selectively charge a second capacitor with a second current and impose a second voltage drop on the control voltage in response to one logic state of the clock signal.

公开(公告)号：US11689202B2

公开(公告)日：2023-06-27

申请号：US17539017

申请日：2021-11-30

Applicant: SKYWORKS SOLUTIONS, INC.

Inventor： Florinel G. Balteanu ,  Paul T. DiCarlo

IPC: H03K17/693 ,  H04B1/40 ,  H03K3/356 ,  H02M3/07 ,  H01L23/00 ,  H01L25/065 ,  H03K17/10

CPC classification number: H03K17/693 ,  H02M3/073 ,  H03K3/356113 ,  H04B1/40 ,  H01L24/42 ,  H01L25/0652 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2924/181 ,  H02M3/07 ,  H02M3/077 ,  H03K17/102 ,  H03K2217/0081 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/181 ,  H01L2924/00012

Abstract: Disclosed herein are non-limiting examples of voltage generators that use multiple charge pumps coupled in series to generate a targeted voltage. The charge pumps implement multiple charge pump units that reduce the introduction of noise into a circuit in which they are implemented. The charge pumps units work in parallel on different clock phases to reduce spurious noise. This is in contrast to using a single charge pump with a relatively large flying capacitor or a plurality of charge pumps in series. This can, for example, reduce spurious signals or spurs that arise due at least in part to the characteristics of the clock signal. The disclosed technologies may be particularly advantageous for SOI-based components and circuits.

公开(公告)号：US11664727B2

公开(公告)日：2023-05-30

申请号：US16883872

申请日：2020-05-26

Applicant: pSemi Corporation

Inventor： David Giuliano ,  Gregory Szczeszynski

IPC: H02M3/07 ,  H02M1/00

CPC classification number: H02M3/073 ,  H02M1/007 ,  H02M3/075 ,  H02M3/077

Abstract: An apparatus for providing electric power to a load includes a power converter that accepts electric power in a first form and provides electric power in a second form. The power converter comprises a control system, a first stage, and a second stage in series. The first stage accepts electric power in the first form. The control system controls operation of the first and second stage. The first stage is either a switching network or a regulating network. The second stage is a regulating circuit when the first stage is a switching network, and a switching network otherwise.

公开(公告)号：US20180337596A1

公开(公告)日：2018-11-22

申请号：US15599596

申请日：2017-05-19

Applicant: GLOBALFOUNDRIES INC.

Inventor： Wern Ming KOE

IPC: H02M3/07 ,  H03K5/1532

CPC classification number: H02M3/073 ,  H03K5/1532

Abstract: The present disclosure relates to a structure which includes a diode-based Dickson charge pump which is configured to use an independent multi-gate device to reduce a threshold voltage of a plurality of transistor diodes during a charging and pumping phase.

公开(公告)号：US20180234011A1

公开(公告)日：2018-08-16

申请号：US15745272

申请日：2016-06-15

Applicant: Rohm Co., Ltd.

Inventor： Yasunori MURAMATSU ,  Tetsuo Tateishi

IPC: H02M3/07 ,  G05F1/10 ,  F21S41/12

CPC classification number: H02M3/073 ,  B60Q1/382 ,  B60Q1/46 ,  B60Q11/007 ,  F21S41/12 ,  F21Y2115/10 ,  G05F1/10 ,  H02M3/07 ,  H02M2001/0041

Abstract: Provided is a charge pump including a flying capacitor, an output capacitor, a switch group arranged to switch connection states of the capacitors so as to generate an output voltage from an input voltage, and a feedback control unit arranged to adjust an interterminal voltage of the flying capacitor to a predetermined target value when charging the same. On the basis of a first node voltage applied to a first terminal of the flying capacitor, the feedback control unit adjusts a second node voltage at a second terminal of the flying capacitor. The feedback control unit includes a voltage detection unit arranged to detect the interterminal voltage of the flying capacitor, and a voltage adjustment unit arranged to adjust the second node voltage according to a result of detection by the voltage detection unit.

公开(公告)号：US10027224B2

公开(公告)日：2018-07-17

申请号：US15850117

申请日：2017-12-21

Applicant: pSemi Corporation

Inventor： Aichen Low ,  Gregory Szczeszynski ,  David Giuliano

IPC: H02J3/12 ,  G05F1/00 ,  H02M3/18 ,  H02M7/00 ,  H02M3/07

CPC classification number: H02M3/07 ,  H02M3/073

Abstract: An apparatus for power conversion includes a switching network that controls interconnections between pump capacitors in a capacitor network that has a terminal coupled to a current source, and a charge-management subsystem. In operation, the switching network causes the capacitor network to execute charge-pump operating cycles during each of which the capacitor network adopts different configurations in response to different configurations of the switching network. At the start of a first charge-pump operating cycle, each pump capacitor assumes a corresponding initial state. The charge-management subsystem restores each pump capacitor to the initial state by the start of a second charge-pump operating cycle that follows the first charge-pump operating cycle.

公开(公告)号：US20180190360A1

公开(公告)日：2018-07-05

申请号：US15690768

申请日：2017-08-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Whan SEO

IPC: G11C16/30 ,  G06F1/10 ,  H02M3/07

CPC classification number: G11C16/30 ,  G06F1/10 ,  G11C5/145 ,  G11C29/021 ,  H02M1/32 ,  H02M3/07 ,  H02M3/073

Abstract: A memory device includes a controller and a power circuit for a plurality of memory cells. The power circuit detects the frequency of at least one clock signal generated in the power circuit and generates comparative data based on the frequency. The controller detects leakage current in the power based on the comparative data.

公开(公告)号：US20180159427A1

公开(公告)日：2018-06-07

申请号：US15813505

申请日：2017-11-15

Applicant: Peregrine Semiconductor Corporation

Inventor： David Giuliano ,  Gregory Szczeszynski ,  Raymond Barrett, JR.

IPC: H02M3/07 ,  H02M1/088

CPC classification number: H02M3/07 ,  H02M1/088 ,  H02M3/073

Abstract: An apparatus for converting voltage includes terminals coupled to external circuits at corresponding voltages and a switching network having driving circuits and semiconductor switches that interconnect capacitors in successive states to one another and to the terminals. The switches interconnect some capacitors to one another through a series of switches when an activation pattern causes them to be activated. Each driving circuit has power connections, a control input, and a drive output coupled to and controlling at least one switch. A drive output of one of them couples to and drives each switch. Some of the driving circuits are powered via corresponding power connections from at least one of the capacitors such that a voltage across the corresponding power connections is less than a highest of the corresponding voltages. The terminals and the switching network are constituents of a switched capacitor converter.

公开(公告)号：US20180129074A1

公开(公告)日：2018-05-10

申请号：US15862466

申请日：2018-01-04

Applicant: Johnson & Johnson Vision Care, Inc.

Inventor： Donald Whitney ,  Adam Toner

IPC: G02C7/08 ,  H02M3/158 ,  G02C7/12 ,  G02C7/10 ,  A61F2/16 ,  G02C7/04 ,  A61F2/48

CPC classification number: G02C7/083 ,  A61F2/1635 ,  A61F2002/482 ,  G02C7/04 ,  G02C7/085 ,  G02C7/101 ,  G02C7/12 ,  H02M1/08 ,  H02M3/073 ,  H02M3/158 ,  H02M2001/0006 ,  H03K17/063 ,  H03K2017/066 ,  H03K2217/0045 ,  H03K2217/0081

Abstract: A lens driver or lens driver circuitry for an ophthalmic apparatus comprising an electronic system which actuates a variable-focus optic is disclosed herein. The lens driver is part of an electronic system incorporated into the ophthalmic apparatus. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The lens driver circuitry includes one or more power sources, one or more high voltage generators and one or more switching circuits. Specifically, the lens driver comprises an H-bridge/H-bridge controller for providing the proper voltage, including polarity, to drive the electronic included in the ophthalmic apparatus.