公开(公告)号：US09859792B2

公开(公告)日：2018-01-02

申请号：US15429178

申请日：2017-02-10

申请人： Silicon Motion Inc.

发明人： Tsun-Hsin Wang

IPC分类号： H02M3/07 ,  H02M1/00 ,  G05F1/565

CPC分类号： H02M3/07 ,  G05F1/565 ,  H02M3/073 ,  H02M2001/0045 ,  H02M2003/072

摘要： A switching-capacitor regulator with a charge injection mode for a high loading current is used to generate an output voltage at an output node, where the switching-capacitor regulator includes a storage capacitor, a switch module, a current source and a control unit. The switch module is coupled between the storage capacitor, a first supply voltage, a second supply voltage and the output node. The current source is coupled to the output node, and is used for selectively providing a current to the output node. The control unit is coupled to the switch module and the output node, and is used for controlling the switch module to selectively charge or discharge the storage capacitor, and for controlling the current source to selectively provide the current to the output node, to adjust a voltage level of the output voltage

公开(公告)号：US20170315579A1

公开(公告)日：2017-11-02

申请号：US15653057

申请日：2017-07-18

申请人： SK hynix Inc.

发明人： Yeon-Uk KIM

IPC分类号： G05F3/26 ,  H02M3/07

CPC分类号： G05F3/262 ,  G05F1/465 ,  H02M3/07 ,  H02M3/073 ,  H02M2003/072

摘要： An internal voltage generation circuit includes a first control signal generation unit suitable for generating a first control signal activated to a level of a second external voltage when a first external voltage is activated, a second control signal generation unit suitable for generating a second control signal that equals the higher of the second external voltage and an internal voltage, and a voltage generation unit suitable for generating the internal voltage by performing a charge pumping operation based on the second external voltage and an oscillation signal while blocking a current flowing through a generation node from which the internal voltage is generated, based on the first and second control signals.

公开(公告)号：US09806604B2

公开(公告)日：2017-10-31

申请号：US14907873

申请日：2014-09-03

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Julia Delos Ayllon ,  Toni Lopez ,  Machiel Antonius Martinus Hendrix ,  Eduardo-Jose Alarcon-Cot

IPC分类号： H05B33/08 ,  H02M3/04 ,  H02M3/158 ,  H02M1/00 ,  H02M3/07

CPC分类号： H02M3/04 ,  H02M3/158 ,  H02M2001/0074 ,  H02M2003/072 ,  H05B33/0815

摘要： The current invention relates to a power conversion device (10), for supplying a load (11) with a PWM signal through an inductive output filter (105). The power conversion device (10) comprises a power conversion module (101) supplied by a DC input voltage (Vin) and is configured for providing a plurality of output signals (PWM1, . . . , PWMn) having a level amplitude that is a fraction of the input voltage (Vin) level. Each output signal is floating with a bias component equally split in a plurality of steps ranging from a determined lowest fraction level amplitude to a determined highest fraction level amplitude. The power conversion device (10) further comprises a multiplexer (103) receiving as a plurality of inputs the plurality of output signals (PWM1, . . . , PWMn). The multiplexer is configured for outputting one output signal (PWMx) selected from the plurality of inputs, whereby the output signal (PWMx) of the multiplexer (103) is connected to the output filter (105).

公开(公告)号：US09793794B2

公开(公告)日：2017-10-17

申请号：US15116780

申请日：2015-02-04

申请人： The Trustees of Dartmouth College

发明人： Jason T. Stauth ,  Kapil Kesarwani

IPC分类号： H02M3/07 ,  H02M1/08 ,  H02M1/00

CPC分类号： H02M3/07 ,  H02M1/08 ,  H02M2001/0058 ,  H02M2003/072 ,  Y02B70/1491

摘要： A system for reducing power loss in a switched-capacitor converter includes a first and second switched capacitor sub-converter each having a flying capacitor and a first, second, third, and fourth switching device. Each switching device is controlled by one of a first, second, third, and fourth clock signal. The first, second, third and fourth clock signals of the second switched capacitor sub-converter are inverted such that the first switched capacitor sub-converter operates during a first phase and the second switched capacitor converter operates during a second phase that is 1800 degrees out of phase from the first phase. The system also includes a resonant charge sharing portion for coupling a bottom-plate parasitic capacitance of the first switched capacitor sub-converter to a bottom-plate parasitic capacitance of the second switched capacitor converter.

公开(公告)号：US20170288534A1

公开(公告)日：2017-10-05

申请号：US15628021

申请日：2017-06-20

申请人： Cirrus Logic International Semiconductor Ltd.

发明人： John P. Lesso ,  Peter J. Frith ,  John L. Pennock

IPC分类号： H02M3/07 ,  H03G3/30

CPC分类号： H02M3/07 ,  H02M2003/071 ,  H02M2003/072 ,  H03G3/30

摘要： A bipolar output charge pump circuit having a network of switching paths for selectively connecting an input node and a reference node for connection to an input voltage, a first pair of output nodes, two pairs of flying capacitor nodes, and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3 VV, +/−VV/5 or +/−VV/6.

公开(公告)号：US09780661B2

公开(公告)日：2017-10-03

申请号：US14926555

申请日：2015-10-29

申请人： Texas Instruments Incorporated

发明人： Sombuddha Chakraborty ,  Yogesh Kumar Ramadass

IPC分类号： H02M3/156 ,  H02M3/158 ,  H02M1/08 ,  H02M3/06 ,  H02M1/00 ,  H02M3/07

CPC分类号： H02M3/158 ,  H02M1/08 ,  H02M3/06 ,  H02M3/156 ,  H02M3/1588 ,  H02M2001/0009 ,  H02M2003/072 ,  H02M2003/1566

摘要： Switch mode power supplies and integrated circuits are presented to provide a DC output voltage signal using high and low side switches, with a switching control circuit to turn off the high side switch and engage an active shunt circuit to provide a reduced voltage to continue converter operation to accommodate high input voltage transients when the DC input voltage exceeds a threshold voltage without requiring an oversized low side switch for improved efficiency through reduced switching and conduction losses in normal operation.

公开(公告)号：US09762132B2

公开(公告)日：2017-09-12

申请号：US14925863

申请日：2015-10-28

申请人： Advanced Charging Technologies, LLC

发明人： Michael H. Freeman ,  W. J. “Jim” Weaver, Jr. ,  Mitchael C. Freeman ,  Robert Dieter ,  Andrea Baschirotto ,  Piero Malcovati ,  Marco Grassi ,  Glenn Noufer ,  Randall L. Sandusky ,  Neaz Farooqi ,  Jim Devoy ,  Silvia Jaeckel ,  Madison Hayes Yarbro Freeman

IPC分类号： H02M3/335 ,  G05F1/46 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M3/156 ,  H02M7/06 ,  H02M1/00

CPC分类号： H02M3/33546 ,  G05F1/462 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M3/073 ,  H02M3/156 ,  H02M3/33515 ,  H02M3/33553 ,  H02M7/06 ,  H02M2001/0009 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2001/0045 ,  H02M2001/007 ,  H02M2003/072 ,  H02M2003/075 ,  H03M7/10 ,  Y02B70/16

摘要： An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.

公开(公告)号：US09748852B2

公开(公告)日：2017-08-29

申请号：US14925860

申请日：2015-10-28

申请人： Advanced Charging Technologies, LLC

发明人： Michael H. Freeman ,  W. J. Weaver, Jr. ,  Mitchael C. Freeman ,  Robert Dieter ,  Andrea Baschirotto ,  Piero Malcovati ,  Marco Grassi ,  Glenn Noufer ,  Randall L. Sandusky ,  Neaz Farooqi ,  Jim Devoy ,  Silvia Jaeckel ,  Madison Hayes Yarbro Freeman

IPC分类号： H02M3/07 ,  H02M3/335 ,  G05F1/46 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/156 ,  H02M7/06 ,  H02M1/00

CPC分类号： H02M3/33546 ,  G05F1/462 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M3/07 ,  H02M3/073 ,  H02M3/156 ,  H02M3/33515 ,  H02M3/33553 ,  H02M7/06 ,  H02M2001/0009 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2001/0045 ,  H02M2001/007 ,  H02M2003/072 ,  H02M2003/075 ,  H03M7/10 ,  Y02B70/16

摘要： An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.

公开(公告)号：US20170179819A1

公开(公告)日：2017-06-22

申请号：US15253880

申请日：2016-09-01

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Koichi NOTOYA ,  Naoki TAKAHASHI ,  Kyosuke OGAWA ,  Yasunori TANAKA ,  Masahiro ISHIBASHI

IPC分类号： H02M3/07

CPC分类号： H02M3/07 ,  H02M2003/072

摘要： A charge pump circuit includes a capacitor, a first switch between the capacitor and a power supply terminal, a second switch between the capacitor and an output terminal, a third switch between the output terminal and the capacitor, a fourth switch between the capacitor and a ground terminal, and a control unit configured to generate control signals for the switches. The control signals include first signals generated during a first period that cause first and third switches to be in an ON state and second and fourth switches to be in an OFF state, second signals generated during a second period that cause first and third switches to be in an OFF state and second and fourth switches to be in an ON state, and third signals generated between the first and second periods, that cause the ON/OFF state of each of the switches to be switched at different times.

公开(公告)号：US20170099011A1

公开(公告)日：2017-04-06

申请号：US15282438

申请日：2016-09-30

申请人： Advanced Charging Technologies, LLC

发明人： Michael H. Freeman ,  Robert Dieter ,  Randall L. Sandusky ,  Neaz Farooqi ,  Jim Devoy ,  Curtis Dickie

IPC分类号： H02M7/06 ,  H02M1/36 ,  H02M1/12 ,  H02M1/44 ,  H02M1/08 ,  H02M1/14

CPC分类号： H02M7/06 ,  G05F1/462 ,  H02M1/08 ,  H02M1/32 ,  H02M1/36 ,  H02M1/44 ,  H02M3/07 ,  H02M3/073 ,  H02M3/156 ,  H02M3/33515 ,  H02M3/33553 ,  H02M3/33592 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2001/0045 ,  H02M2001/007 ,  H02M2003/072 ,  Y02B70/1475 ,  Y02B70/16

摘要： An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit and a rectifier circuit for delivering input power signal to the voltage reduction circuit. The voltage reduction circuit is configured to receive an input power signal and generate an output power signal at a lower voltage level. The rectifier circuit includes a full wave bridge rectifier coupled to the electrical power source, a Zener based charging circuit coupled to the full wave bridge rectifier, a voltage divider coupled to the Zener based charging circuit and the full wave bridge rectifier, and an output terminal coupled to the full wave bridge rectifier, the Zener based charging circuit, and the voltage divider for delivering the input power signal to the voltage reduction circuit.