公开(公告)号：US10038376B2

公开(公告)日：2018-07-31

申请号：US14818336

申请日：2015-08-05

申请人： U.S. Army Research Laboratory ATTN: RDRL-LOC-I

发明人： Nathan S. Lazarus ,  Sarah S. Bedair

IPC分类号： H02M3/158 ,  H02M1/00 ,  H02M7/48

CPC分类号： H02M3/158 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2007/4818 ,  Y02B70/1441 ,  Y02B70/1491

摘要： A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and the second end of the transmission line. A second switch is electrically connected between the second end of the transmission line and the load and both switches are movable between an open and a closed position. A switch control circuit switches the first and second electric switches between their open and closed positions at a selected high frequency. A plurality of variable impedance elements are electrically connected to the transmission line at spaced intervals while an impedance control circuit is electrically connected to the variable impedance elements to vary the impedance of the impedance elements and thereby vary the voltage applied to the load.

公开(公告)号：US20180175770A1

公开(公告)日：2018-06-21

申请号：US15576499

申请日：2016-05-25

申请人： AROS ELECTRONICS AB

发明人： JERKER HELLSTRÖM

IPC分类号： H02P27/06 ,  H02M7/521 ,  H02M7/523 ,  H02M1/14

CPC分类号： H02P27/06 ,  B60L2210/40 ,  B60L2220/40 ,  H02M1/14 ,  H02M7/48 ,  H02M7/521 ,  H02M7/523 ,  H02M2007/4818

摘要： An electrical motor system and a method for operating the electrical motor system are disclosed. The electrical motor system comprises a direct current (DC) source, a filter connected in parallel with the DC source and an electric motor with at least two sets of windings. A voltage signal is provided from the DC source to the inverter circuit where the signal is modulated. The modulated signal is then supplied from the inverter circuit to each set of windings with a respective time offset between each set of windings respectively, providing a very efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems.

公开(公告)号：US20180131230A1

公开(公告)日：2018-05-10

申请号：US15533089

申请日：2015-11-30

申请人： NYXOAH S.A.

发明人： Carsten Müeller ,  Timo Koch

IPC分类号： H02J50/12 ,  H02J50/80 ,  A61B5/00 ,  A61B1/00 ,  A61N1/378

CPC分类号： H02J50/12 ,  A61B1/00016 ,  A61B1/00029 ,  A61B5/0031 ,  A61N1/36125 ,  A61N1/3787 ,  H02J50/80 ,  H02M3/337 ,  H02M2001/0058 ,  H02M2007/4818 ,  H03J3/02 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

摘要： Exemplary embodiments relate to a control circuit (202) for a base station (204) for transmitting energy to a receiver (206) by means of an electric resonant circuit (208; 300). The control circuit (202) comprises an evaluation device (210) which is designed to compare energy that has been transmitted to a receiver resonant circuit (212) of the receiver (206) with an energy set value. The control circuit (202) is designed to alter the energy input into the receiver resonant circuit (212) of the receiver (206) by altering a resonant frequency of the resonant circuit (208; 300) on the basis of the result of the comparison.

公开(公告)号：US20180041131A1

公开(公告)日：2018-02-08

申请号：US15670468

申请日：2017-08-07

申请人： SANKEN ELECTRIC CO., LTD.

发明人： Takeki SUGAHARA ,  Osamu OHTAKE

IPC分类号： H02M3/335 ,  H02M1/08

CPC分类号： H02M3/33507 ,  G05F1/652 ,  H02M1/08 ,  H02M1/4225 ,  H02M3/315 ,  H02M3/335 ,  H02M3/3376 ,  H02M2001/0009 ,  H02M2001/0032 ,  H02M2001/0035 ,  H02M2001/0058 ,  H02M2007/4818

摘要： A first switch and a second switch connected in series to both terminals of a DC power source. A signal generation circuit generates a feedback signal based on the DC voltage detected by the voltage detection circuit, and outputs the feedback signal, the feedback signal for turning the first and second switches on and off. A burst oscillation circuit that generates a burst oscillation signal based on a feedback signal and turns the first switch element and the second switch element on and off based on the burst oscillation signal when the standby state is detected. The burst oscillation circuit comprises a capacitor and a rapid charge circuit. When this device returns from standby state to normal state, the rapid charging circuit charges the capacitor after the feedback signal exceeds the cancellation threshold voltage.

公开(公告)号：US09859956B2

公开(公告)日：2018-01-02

申请号：US13828831

申请日：2013-03-14

申请人： QUALCOMM Incorporated

发明人： Michael Kissin ,  Nicholas A Keeling ,  Jonathan Beaver ,  Edward Van Boheemen

IPC分类号： H01F27/42 ,  H01F38/42 ,  H04B5/00 ,  H02J5/00 ,  H02J7/02 ,  H02M7/48

CPC分类号： H04B5/0037 ,  B60L2210/30 ,  B60L2210/40 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H02M2007/4818 ,  H04B5/0075 ,  Y02B70/1441 ,  Y02T10/7241

摘要： This disclosure provides systems, methods and apparatus for wireless power transfer and particularly wireless power transfer to remote system such as electric vehicles. In one aspect an apparatus for use with a wireless power transfer transmitter device comprising a first inductive element for generating a magnetic field, is provided. The apparatus comprises a direct current (DC) power source having an adjustable output voltage. The apparatus also comprises an inverter configured to convert the adjustable output voltage of the DC power source to alternating current. The apparatus also comprises at least one controller configured to receive an indication of current in the first inductive element and control the output voltage of the DC power source in response to the indication of current in the first inductive element. The apparatus reduces distortion signals in the alternating current output of the inverter while maintaining current in the inductive element substantially constant.

公开(公告)号：US20170054379A1

公开(公告)日：2017-02-23

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

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.

摘要翻译： 电流谐振型直流电压转换器包括：开关电路，被配置为从直流输入电压产生交流电压; LC谐振电路，其被配置为响应于将AC电压施加到谐振电容器和谐振线圈而谐振; 变压器，其一次侧与LC谐振电路串联连接; 与变压器并联的并联谐振电感; 整流电路，被配置为对变压器次级侧出现的电流进行整流以产生直流输出电压; 以及配置成改变并联谐振电感的并联谐振电感调节电路。

公开(公告)号：US20170040903A1

公开(公告)日：2017-02-09

申请号：US15297818

申请日：2016-10-19

申请人： Futurewei Technologies, Inc.

发明人： Daoshen Chen ,  Heping Dai ,  Xujun Liu ,  Liming Ye ,  Dianbo Fu

IPC分类号： H02M3/335 ,  H02M1/36 ,  H02M1/14

CPC分类号： H02M3/33546 ,  H02M1/08 ,  H02M1/088 ,  H02M1/14 ,  H02M1/36 ,  H02M3/3353 ,  H02M3/33553 ,  H02M3/33576 ,  H02M3/33592 ,  H02M3/3385 ,  H02M7/4807 ,  H02M2001/0006 ,  H02M2001/0058 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491 ,  Y02P80/112

摘要： A method comprises providing a resonant converter comprising a switching network comprising a first high-side switch, a second high-side switch, a first low-side switch and a second low-side switch, a resonant tank coupled between the switching network and a transformer and a rectifier coupled to a secondary side of the transformer, coupling a driver to the switching network and the rectifier, wherein the driver includes a first winding coupled to the rectifier, a second winding coupled to the first high-side switch and a third winding coupled to the second high-side switch, detecting a signal indicating a soft switching process of the driver and adjusting a resonant frequency of the driver until the resonant frequency of the driver approximately matches a switch frequency of the resonant converter.

摘要翻译： 一种方法包括提供包括开关网络的谐振转换器，该开关网络包括第一高侧开关，第二高侧开关，第一低侧开关和第二低侧开关，耦合在开关网络和 变压器和整流器耦合到变压器的次级侧，将驱动器耦合到开关网络和整流器，其中驱动器包括耦合到整流器的第一绕组，耦合到第一高侧开关的第二绕组和第三绕组 绕组耦合到第二高侧开关，检测指示驱动器的软开关处理的信号，并调整驱动器的谐振频率，直到驱动器的谐振频率近似于谐振转换器的开关频率。

公开(公告)号：US20170040893A1

公开(公告)日：2017-02-09

申请号：US14818336

申请日：2015-08-05

申请人： U.S. Army Research Laboratory ATTN: RDRL-LOC-I

发明人： Nathan S. Lazarus ,  Sarah S. Bedair

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  H02M2001/0058 ,  H02M2001/0064 ,  H02M2007/4818 ,  Y02B70/1441 ,  Y02B70/1491

摘要： A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power source and the second end of the transmission line. A second switch is electrically connected between the second end of the transmission line and the load and both switches are movable between an open and a closed position. A switch control circuit switches the first and second electric switches between their open and closed positions at a selected high frequency. A plurality of variable impedance elements are electrically connected to the transmission line at spaced intervals while an impedance control circuit is electrically connected to the variable impedance elements to vary the impedance of the impedance elements and thereby vary the voltage applied to the load.

摘要翻译： 一种DC-DC电力转换器，其具有在一端终止的电源，负载和传输线。 第一开关电连接在电源和传输线的第二端之间。 第二开关电连接在传输线的第二端和负载之间，并且两个开关可在打开和关闭位置之间移动。 开关控制电路以选定的高频率在其打开和关闭位置之间切换第一和第二电开关。 多个可变阻抗元件以间隔的间隔电连接到传输线，同时阻抗控制电路电连接到可变阻抗元件以改变阻抗元件的阻抗，从而改变施加到负载的电压。

公开(公告)号：US20160359374A1

公开(公告)日：2016-12-08

申请号：US15172987

申请日：2016-06-03

申请人： Funai Electric Co., Ltd.

发明人： Yoshitaka Fujimoto

IPC分类号： H02J50/12 ,  H02J7/02

CPC分类号： H02J50/12 ,  H02J7/025 ,  H02M2007/4818 ,  Y02B70/1441

摘要： A power supply apparatus includes a resonant circuit that determines a resonant frequency, a drive unit that drives the resonant circuit, and a controller that causes the resonant frequency to change between a first resonant frequency and a second resonant frequency. The first resonant frequency is higher than a frequency of a drive signal of the drive unit and the second resonant frequency is lower than the frequency of the drive signal.

摘要翻译： 电源装置包括确定谐振频率的谐振电路，驱动谐振电路的驱动单元和使谐振频率在第一谐振频率和第二谐振频率之间变化的控制器。 第一谐振频率高于驱动单元的驱动信号的频率，第二谐振频率低于驱动信号的频率。

公开(公告)号：US09479073B2

公开(公告)日：2016-10-25

申请号：US14077406

申请日：2013-11-12

申请人： FutureWei Technologies, Inc.

发明人： Daoshen Chen ,  Heping Dai ,  Xujun Liu ,  Liming Ye ,  Dianbo Fu

IPC分类号： H02M3/335 ,  H02M3/338 ,  H02M1/08 ,  H02M1/00

CPC分类号： H02M3/33546 ,  H02M1/08 ,  H02M1/088 ,  H02M1/14 ,  H02M1/36 ,  H02M3/3353 ,  H02M3/33553 ,  H02M3/33576 ,  H02M3/33592 ,  H02M3/3385 ,  H02M7/4807 ,  H02M2001/0006 ,  H02M2001/0058 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491 ,  Y02P80/112

摘要： An apparatus comprises a bridge coupled between a bias voltage and ground, wherein the bridge comprises a first switch and a second switch connected in series and coupled between the bias voltage and ground and a third switch and a fourth switch connected in series and coupled between the bias voltage and ground, a resonant device coupled to the bridge, wherein the resonant device comprises a fixed capacitance, a gate capacitance and a magnetizing inductance, a transformer coupled to the resonant device, wherein the transformer comprises a primary winding and a plurality of secondary windings.

摘要翻译： 一种装置包括耦合在偏置电压和接地之间的桥，其中桥包括串联连接并耦合在偏置电压和地之间的第一开关和第二开关，以及串联耦合在第三开关和第四开关之间的第三开关和第四开关， 偏置电压和接地，耦合到桥的谐振装置，其中所述谐振装置包括固定电容，栅极电容和磁化电感，耦合到所述谐振装置的变压器，其中所述变压器包括初级绕组和多个次级绕组 绕组。