公开(公告)号：US20190173388A1

公开(公告)日：2019-06-06

申请号：US15832283

申请日：2017-12-05

申请人： ABB Schweiz AG

发明人： Harish Suryanarayana

IPC分类号： H02M3/335 ,  H02M7/48

CPC分类号： H02M3/33592 ,  H02M3/33546 ,  H02M3/33569 ,  H02M7/48 ,  H02M2001/0048 ,  H02M2001/0058 ,  H02M2007/4811 ,  H02M2007/4815

摘要： Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is a resonant power converter comprising a DC bus, a primary leg, an auxiliary leg, and an LC resonant circuit. The auxiliary leg is coupled between DC bus and includes a first auxiliary switch and a second auxiliary switch coupled at an auxiliary midpoint connection. The LC resonant circuit includes an air-core resonant inductor and a resonant capacitor coupled between the auxiliary midpoint connection and a primary midpoint connection of the primary leg. A controller is structured to control the first and second auxiliary switch and the first and second primary switch so as to provide resonant operation of the LC resonant circuit effective to provide a substantially zero voltage condition across the first and second primary switch while toggling the switches.

公开(公告)号：US20180301990A1

公开(公告)日：2018-10-18

申请号：US15994854

申请日：2018-05-31

申请人： Power Integrations, Inc.

发明人： Hartley Fred Horwitz ,  Steven Greig Porter

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M1/38 ,  H02M3/33561 ,  H02M3/3376 ,  H02M2001/0038 ,  H02M2001/0058 ,  H02M2007/4815 ,  H03K3/013 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A power converter controller includes a high side signal interface circuit that includes a common mode cancellation circuit that is coupled to generate a fourth current signal representative of an OFF signal referenced to a bypass voltage during an initial state, and a first current signal in response to an ON signal being pulled to a lower value relative to the OFF signal to turn ON a high side switch. The common mode cancellation circuit generates a common mode rejection signal in response to the first and fourth current signals. A first current hysteresis comparator receives the first and fourth current signals, the common mode rejection signal, and a drive signal to generate a first output signal. A drive signal generated in response to the first output signal in a presence of a common mode voltage caused by slewing at a half bridge node.

公开(公告)号：US10079545B2

公开(公告)日：2018-09-18

申请号：US15119737

申请日：2015-02-19

申请人： OMRON Corporation

发明人： Takeo Nishikawa ,  Takashi Hyodo ,  Toshiyuki Yokoi

IPC分类号： H02M3/335 ,  H02M1/088 ,  H02M1/00 ,  H02M7/48

CPC分类号： H02M3/33569 ,  H02M1/088 ,  H02M2001/0022 ,  H02M2001/0058 ,  H02M2007/4815 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

摘要： A current resonant type DC voltage converter includes: a switching circuit configured to generate an AC voltage from a DC input voltage; a LC resonance circuit configured to resonate in response to application of the AC voltage to a resonant capacitor and a resonant coil; a transformer having a primary side connected in series to the LC resonance circuit; a parallel resonant inductance present in parallel to the transformer; a rectifier circuit configured to rectify a current appearing on a secondary side of the transformer to generate a DC output voltage; and a parallel resonant inductance adjustment circuit configured to change the parallel resonant inductance.

公开(公告)号：US20180256242A1

公开(公告)日：2018-09-13

申请号：US15915795

申请日：2018-03-08

申请人： MINNETRONIX, INC.

发明人： Vlad Bluvshtein ,  Lori Lucke

IPC分类号： A61B18/12 ,  H02M7/5387 ,  H02M1/12

CPC分类号： A61B18/1206 ,  A61B18/1233 ,  A61B2018/00577 ,  A61B2018/00601 ,  A61B2018/00642 ,  A61B2018/00648 ,  A61B2018/00702 ,  A61B2018/00779 ,  A61B2018/00791 ,  A61B2018/00827 ,  A61B2018/00892 ,  A61B2018/1266 ,  A61B2018/1286 ,  H02M1/126 ,  H02M7/53871 ,  H02M7/53873 ,  H02M2007/4815 ,  Y02B70/1441

摘要： Examples described herein may include medical devices and electrosurgical generators with resonant isolated transformers to perform filtering and gain functions. An example electrosurgical generator includes a radio frequency (RF) inverter stage configured to receive an input signal and, in response to control feedback signals, to provide an output signal that provides power to a load. The RF inverter stage includes a resonant isolated transformer configured to receive the input signal and to provide gain and filtering adjustments to the input signal to provide the output signal.

公开(公告)号：US20180233955A1

公开(公告)日：2018-08-16

申请号：US15817805

申请日：2017-11-20

申请人： Samsung Electro-Mechanics Co., Ltd.

发明人： Seung Won PARK ,  Sang Ho CHO ,  Hyo Young KIM ,  Eun Young SHIN ,  Young Seung ROH

IPC分类号： H02J50/12 ,  H02J7/02 ,  H02M7/537

CPC分类号： H02J50/12 ,  H02J7/025 ,  H02J50/40 ,  H02M3/158 ,  H02M3/33523 ,  H02M7/537 ,  H02M2001/0058 ,  H02M2001/009 ,  H02M2007/4815 ,  Y02B70/1441 ,  Y02B70/1491

摘要： A wireless power transmitter includes: a converter including a first switch and a second switch, and configured to output alternating current (AC) power to an AC node between the first switch and the second switch; a common resonance capacitor connected to the AC node; and resonators connected to the common resonance capacitor, wherein each of the resonators includes a series capacitor, a resonance coil, and a sub-switch, connected to each other in series, and wherein the resonance coil is configured to transmit the power in a non-contact manner.

公开(公告)号：US20180226896A1

公开(公告)日：2018-08-09

申请号：US15889586

申请日：2018-02-06

申请人： Eagle Harbor Technologies, Inc.

发明人： Kenneth E. Miller ,  James R. Prager ,  Timothy M. Ziemba ,  John G. Carscadden ,  Ilia Slobodov ,  Alex Patrick Henson

IPC分类号： H02M3/335 ,  H02M3/337

CPC分类号： H02M3/33592 ,  H02M3/3376 ,  H02M2001/0003 ,  H02M2001/0058 ,  H02M2007/4815 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491 ,  Y02P80/112

摘要： Some embodiments may include a nanosecond pulser comprising a plurality of solid state switches; a transformer having a stray inductance, Ls, a stray capacitance, Cs, and a turn ratio n; and a resistor with a resistance, R, in series between the transformer and the switches. In some embodiments, the resonant circuit produces a Q factor according to Q = 1 R  L s C s ; and the nanosecond pulser produces an output voltage Vout from an input voltage Vin, according to Vout=QnVin.

公开(公告)号：US20180219501A1

公开(公告)日：2018-08-02

申请号：US15422604

申请日：2017-02-02

申请人： General Electric Company

发明人： Robert Gregory Wagoner ,  Dong Dong ,  Govardhan Ganireddy ,  David Smith

IPC分类号： H02P9/00 ,  H02M3/335 ,  H02M5/42 ,  H02M1/084

CPC分类号： H02P9/007 ,  H02M1/08 ,  H02M1/44 ,  H02M3/33584 ,  H02M3/337 ,  H02M7/4807 ,  H02M7/49 ,  H02M2001/0058 ,  H02M2007/4815

摘要： Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. The plurality of switching devices can include one or more silicon carbide MOSFETs. A control method can include providing, by a control system, one or more gating commands to a first inverter block in the plurality of inverter blocks. The control method can further include implementing, by the control system, a gating command delay to generate a first delayed gating command based at least in part on the one or more gating commands. The control method can further include providing, by the control system, the first delayed gating command to a second inverter block in the plurality of inverter blocks.

公开(公告)号：US20180175741A1

公开(公告)日：2018-06-21

申请号：US15736737

申请日：2016-06-16

申请人： NPC Tech ApS

发明人： Thomas Andersen ,  Jakob Døllner Mønster

IPC分类号： H02M7/493 ,  H02M3/335 ,  H02M7/537

CPC分类号： H02M7/493 ,  H02M1/083 ,  H02M3/155 ,  H02M3/1584 ,  H02M3/33569 ,  H02M3/338 ,  H02M7/537 ,  H02M7/5383 ,  H02M2001/0058 ,  H02M2001/0074 ,  H02M2001/0077 ,  H02M2003/1557 ,  H02M2007/4815 ,  H02M2007/4822 ,  Y02B70/1425 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

摘要： The present invention relates in a first aspect to a galvanically isolated power converter assembly comprising a first set of electrically interconnected resonant power inverters configured for generating respective output voltages and output currents. The galvanically isolated power converter assembly further a first positive summing node and a first negative summing node configured to combining the output voltages and output currents of the first set of resonant power inverters and a first common load circuit comprising a positive load input and a negative load input. A galvanic isolation barrier comprises first and second common isolation capacitors electrically insulating the common load circuit. Each of the first and second common isolation capacitors possesses an official safety rating.

公开(公告)号：US20180097405A1

公开(公告)日：2018-04-05

申请号：US15718767

申请日：2017-09-28

申请人： University of Tennessee Research Foundation

发明人： Daniel Jes COSTINETT ,  Chongwen ZHAO

IPC分类号： H02J50/12 ,  H02M7/5387

CPC分类号： H02J50/12 ,  H02J7/025 ,  H02M3/33561 ,  H02M7/53871 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A transmitter for wireless power transfer is provided. The transmitter includes an input port, a first transmission port, a second transmission port, an inverter, and a controller. An input of the inverter is coupled to the input port, and an output of the inverter is coupled in parallel to the first and second transmission ports. The controller is programmed to control the inverter to modulate an output voltage at the output of the inverter such that power from the input port is transmitted at a first frequency through the first transmission port and at a second frequency through the second transmission port.

公开(公告)号：US09933805B2

公开(公告)日：2018-04-03

申请号：US15194058

申请日：2016-06-27

申请人： ABB Schweiz AG

发明人： Liming Liu ,  Jing Xu

IPC分类号： H02M7/533 ,  G05F3/08 ,  H02M1/08 ,  H02M3/06 ,  H02M7/48

CPC分类号： G05F3/08 ,  H02M1/08 ,  H02M3/06 ,  H02M3/156 ,  H02M7/533 ,  H02M7/537 ,  H02M2001/007 ,  H02M2007/4815

摘要： Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is an electrical power conversion system comprising a first converter stage, a second converter stage, a third converter stage, and a control system. The first converter stage is operable to boost DC power received from a DC power source. The second converter stage is operable to boost DC power received from the first converter stage. The third converter stage includes an inverter. The control system is structured to receive as input voltage (Vpv) and current (Ipv) output by the DC power source, voltage (Vdc) output by the second controller stage, and voltage (Vac) and a current (Iac) which are output by the third stage to an AC electrical power system, provide a control command for the first converter stage, and process the information of Vdc, Vac and Iac to provide control commands for the inverter switches.