公开(公告)号：US20190181773A1

公开(公告)日：2019-06-13

申请号：US16277030

申请日：2019-02-15

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Koji Kawai

IPC: H02M7/219 ,  H02M7/08 ,  H02J9/06 ,  H02M3/155 ,  H02J3/38 ,  H02J1/10

CPC classification number: H02M7/219 ,  H02J1/102 ,  H02J3/38 ,  H02J9/061 ,  H02M3/155 ,  H02M7/08 ,  H02M7/12 ,  H02M7/17 ,  H02M2001/0048 ,  H02M2001/007 ,  H02M2001/0074 ,  H02M2001/0077 ,  H02M2001/325

Abstract: A power supply system that includes a converter that converts an input alternating-current voltage into a direct-current voltage and outputs the direct-current voltage to a load. The system includes a switcher that electrically connects one of multiple alternating-current power supplies to the converter, a voltage detector that detects an input voltage input to the converter, and a current detector that detects an output current output from the converter. The switcher repeats, for a predetermined amount of time, a determination of whether there is an abnormality in alternating-current power supply based on the input voltage detected by the voltage detector. Moreover, if there is an abnormality, the switcher switches which alternating-current power supply is connected to the converter. Further, the switcher adjusts, based on the result of detection by the current detector, the amount of time for which the determination is performed.

公开(公告)号：US08537576B2

公开(公告)日：2013-09-17

申请号：US12808021

申请日：2008-10-31

Applicant: Heinz Ramakers ,  Horst Welker

Inventor： Heinz Ramakers ,  Horst Welker

IPC: H02M1/12 ,  H02M1/14

CPC classification number: H02M1/15 ,  H02M7/17 ,  H02M7/19 ,  H02M2001/0019

Abstract: A power supply for generating temporally specifiable, open- and closed-loop controlled current paths includes a first controllable rectifier group that includes at least one rectifier having a smoothing inductor at an output. An active filter is connected in parallel to a load, the active filter including a second rectifier group with at least one rectifier and a pulse bridge connected to an output thereof. A second-order low pass filter has a clock inductor, a capacitor, and an RC damping, the clock inductor being connected located at an output of the pulse bridge. A voltage of the at least one rectifier of the first controllable rectifier group and a voltage of the active filter in an open and closed loop is controlled, a first controlled system controlling a current of the at least one rectifier of the first controllable rectifier group of the power supply system in open and closed loop via a first controller by an output-side open- and closed-loop controlled variable, and a second controlled system of a second controller for a load current and a subordinate controller for a load voltage controlling the active filter in open and closed loop using a feedforward control variable.

Abstract translation: 用于产生时间可指定的开环和闭环控制电流路径的电源包括第一可控整流器组，其包括在输出端具有平滑电感器的至少一个整流器。 有源滤波器与负载并联连接，有源滤波器包括具有至少一个整流器的第二整流器组和连接到其输出的脉冲桥。 二阶低通滤波器具有时钟电感器，电容器和RC阻尼，时钟电感器连接在脉冲桥的输出端。 控制第一可控整流器组的至少一个整流器的电压和有源滤波器在开环和闭环中的电压，第一受控系统控制第一可控整流器组的至少一个整流器的电流 经由第一控制器通过输出侧开环和闭环控制变量的开环和闭环的电源系统，以及用于负载电流的第二控制器的第二受控系统和用于控制负载电流的负载电压的从属控制器 使用前馈控制变量的开环和闭环中的有源滤波器。

公开(公告)号：US20130027979A1

公开(公告)日：2013-01-31

申请号：US13618401

申请日：2012-09-14

Applicant: Vijay G. Phadke

Inventor： Vijay G. Phadke

IPC: H02M3/335

CPC classification number: H02M7/17 ,  H02J1/10 ,  H02J3/38 ,  H02M3/156 ,  H02M2001/007 ,  Y02E10/58

Abstract: A power system includes a plurality of DC/DC converters and a DC/AC inverter. The plurality of DC/DC converters having outputs electrically connected in parallel for supplying a DC voltage bus to an input of the DC/AC inverter. The plurality of DC/DC converters each include a maximum power point tracker (MPPT). Various DC/DC converters and DC/AC inverters suitable for use in this system and others are also disclosed.

公开(公告)号：US20110037443A1

公开(公告)日：2011-02-17

申请号：US12718049

申请日：2010-03-05

Applicant: Ta-Yung Yang ,  Ming-Hsuan Lee ,  Jian Chang ,  Shih-Jen Yang

Inventor： Ta-Yung Yang ,  Ming-Hsuan Lee ,  Jian Chang ,  Shih-Jen Yang

IPC: G05F1/70

CPC classification number: H02M1/4225 ,  H02M7/17 ,  Y02B70/126

Abstract: A parallel PFC converter comprises a first PFC circuit, a second PFC circuit, and a voltage divider. The second PFC circuit is connected in parallel with the first PFC circuit for generating an output voltage of the parallel PFC converter. The voltage divider is coupled to receive the output voltage for generating a first feedback signal and a second feedback signal. The first feedback signal is higher than the second feedback signal. The first PFC circuit and the second PFC circuit respectively comprises a first switching control circuit and a second switching control circuit for regulating the output voltage. It is an object of the present invention to reduce the power loss for improving the efficiency of the PFC converter.

Abstract translation: 并联PFC转换器包括第一PFC电路，第二PFC电路和分压器。 第二PFC电路与第一PFC电路并联连接，用于产生并联PFC转换器的输出电压。 耦合分压器以接收用于产生第一反馈信号和第二反馈信号的输出电压。 第一反馈信号高于第二反馈信号。 第一PFC电路和第二PFC电路分别包括用于调节输出电压的第一开关控制电路和第二开关控制电路。 本发明的目的是降低功率损耗以提高PFC转换器的效率。

公开(公告)号：US07880342B2

公开(公告)日：2011-02-01

申请号：US12269703

申请日：2008-11-12

Applicant: Edward P. Bourgeau

Inventor： Edward P. Bourgeau

IPC: G05F3/06

CPC classification number: H02M7/23 ,  H02M7/08 ,  H02M7/17 ,  H02M7/81

Abstract: An improved DC bus regulator that utilizes more transistor packs for power conversion at some times and diode, SCR, and resistor packs at other times. The conversion technology is selected by the regulator based on the current load capacity and response required. For example, transistor packs may be used in low power load conditions. Through use of this hybrid system, the system obtains the desirable effects of transistor pack systems including fast response time, ability to regulate current, and bi-directional power conversion while mitigating the high costs and fragile nature of a system based solely on transistor packs.

Abstract translation: 一种改进的直流总线调节器，其在某些时候利用更多的晶体管组件进行功率转换，而在其他时候则采用二极管，SCR和电阻器组件 转换技术由调节器根据当前的负载能力和响应要求选择。 例如，晶体管封装可用于低功率负载条件。 通过使用这种混合系统，系统可以获得晶体管封装系统的理想效果，包括快速响应时间，调节电流的能力和双向功率转换，同时减轻仅基于晶体管封装的系统的高成本和脆弱性质。

公开(公告)号：US07852643B2

公开(公告)日：2010-12-14

申请号：US11823714

申请日：2007-06-27

Applicant: Richard S. Zhang ,  Changyong Wang ,  Zhuohui Tan ,  Haiqing Weng

Inventor： Richard S. Zhang ,  Changyong Wang ,  Zhuohui Tan ,  Haiqing Weng

IPC: H02J1/10

CPC classification number: H02M5/4585 ,  H02M1/32 ,  H02M7/17 ,  H02M7/493 ,  H02M2001/123

Abstract: A system and method for controlling cross current in an interleaved power converter system having a plurality of converter threads coupled in parallel includes collecting a feedback current from each thread and obtaining a normal current and a differential mode current for each thread, based on its respective feedback current. The normal current of each thread is regulated to a commanded thread normal current value via a respective normal current control loop based on d-q rotating frame parameters. A differential mode cross current of each thread is regulated to zero via a respective differential mode cross current control loop based on d-q rotating frame parameters; while a differential mode cross current DC offset of each thread is regulated to zero via a respective differential mode cross current control loop based on stationary frame parameters.

Abstract translation: 一种用于控制具有并联耦合的多个转换器线程的交错电力转换器系统中的交叉电流的系统和方法包括：收集来自每个线程的反馈电流，并且基于其各自的反馈获得每个线程的正常电流和差模电流 当前。 基于d-q旋转帧参数，通过相应的正常电流控制回路将每个线程的正常电流调节到指令线程的正常电流值。 通过基于d-q旋转帧参数的相应的差模交叉电流控制回路将每个线程的差模交叉电流调节为零; 而每个线程的差模交叉电流DC偏移通过基于固定帧参数的相应差模交叉电流控制回路调节为零。

公开(公告)号：US07261802B2

公开(公告)日：2007-08-28

申请号：US10614536

申请日：2003-07-07

Applicant: Guorong Xu ,  Guolin Luo

Inventor： Guorong Xu ,  Guolin Luo

IPC: B01D61/48

CPC classification number: B01D61/48 ,  B01D61/52 ,  B01D61/54 ,  B01D63/10 ,  C02F1/4695 ,  C02F2201/46125 ,  C02F2201/4616 ,  G05F3/06 ,  H02M7/17

Abstract: A stabilizing DC current interface for an electro-deionization (EDI) water purifying module. Each EDI module comprises anionic/cationic membranes, a center pipe, nets/spacers in concentrate/dilute water chambers and an anode and cathode for coupling to the stabilizing DC current interface. Because a stabilized DC current is provided by the interface, the power to each EDI module is not influenced by water temperature, flow rate, water quality in the module, thereby providing a stabilized quality product water while saving energy. A plurality of EDI modules can be operated in electrical series using a DC current interface resulting in reduced DC power consumption.

Abstract translation: 用于电去离子（EDI）净水模块的稳定DC电流接口。 每个EDI模块包括阴离子/阳离子膜，中心管，浓缩/稀释水室中的网/间隔物以及用于耦合到稳定DC电流界面的阳极和阴极。 由于接口提供稳定的直流电流，因此每个EDI模块的功率不受水温，流量，模块水质的影响，从而在节能的同时提供稳定的优质产品水。 多个EDI模块可以使用DC电流接口以电串联方式工作，从而降低直流功率消耗。

公开(公告)号：US20030165069A1

公开(公告)日：2003-09-04

申请号：US10086688

申请日：2002-03-04

Inventor： Franki Ngai Kit Poon ,  Man Hay Pong ,  Joe Chui Pong Liu

IPC: H02M001/00

CPC classification number: H02M7/17 ,  H02M7/08

Abstract: An AC-DC converter that includes a plurality of power conversion units that overlay their signals to generate a DC signal with low voltage level, small voltage and current ripples, but high DC current. The DC signal is further filtered by a LC low pass filter to further minimize the ripples before output to the load. In one embodiment, the plurality of power conversion units is preferably powered by a plurality of input pulse generators. In an alternative embodiment, the power conversion units is powered by a input pulse generator circuit that includes a plurality of n-channel MOSFETs arranged in a full bridge configuration whose gate voltages are controlled by a plurality of pulse generators.

Abstract translation: 一种AC-DC转换器，包括多个功率转换单元，其叠加其信号以产生具有低电压电平，小电压和电流波纹，但具有高DC电流的DC信号。 DC信号被LC低通滤波器进一步滤波，以在输出到负载之前进一步最小化波纹。 在一个实施例中，多个功率转换单元优选地由多个输入脉冲发生器供电。 在替代实施例中，功率转换单元由输入脉冲发生器电路供电，所述输入脉冲发生器电路包括以栅极电压由多个脉冲发生器控制的全桥配置布置的多个n沟道MOSFET。

公开(公告)号：US5886888A

公开(公告)日：1999-03-23

申请号：US638054

申请日：1996-04-26

Applicant: Masahiko Akamatsu ,  Shinzo Tamai ,  Fuminori Nakamura ,  Shotaro Murakami ,  Tomohiko Aritsuka ,  Takeaki Asaeda

Inventor： Masahiko Akamatsu ,  Shinzo Tamai ,  Fuminori Nakamura ,  Shotaro Murakami ,  Tomohiko Aritsuka ,  Takeaki Asaeda

IPC: H02M7/155 ,  H02J3/01 ,  H02J3/36 ,  H02M7/12 ,  H02M7/17 ,  H02M7/19 ,  H02M7/72 ,  H02M7/515

CPC classification number: H02J3/36 ,  H02J3/01 ,  H02M7/17 ,  H02M7/19 ,  H02M7/493 ,  H02M7/23 ,  H02M7/25 ,  H02M7/487 ,  Y02E40/10 ,  Y02E40/40 ,  Y02E60/60

Abstract: A voltage source type power converting apparatus having voltage source type power converter units and phase-shifting transformers. The transformers have either a common multiple-phase primary winding or a group of parallel connected multiple-phase primary windings, either of which being connected in parallel or series to a multiple-phase AC system. The transformer further include a group of multiple-phase secondary windings with phase differences with respect to each other and which are connected to voltage source type power converter units. The voltage source type power converter units are operated with the phase differences. Accordingly, the construction of the multiplexing phase-shifting transformer is simple, and fundamental electric variables can be controlled by a simple phase controlling operation. In addition, a higher harmonic defect of the AC system can be reduced, and the DC voltage can be easily raised.

Abstract translation: 一种具有电压型功率转换器单元和移相变压器的电压型电力转换装置。 变压器具有公共多相初级绕组或一组并联的多相初级绕组，其中任一个并联或串联连接到多相AC系统。 该变压器还包括一组相对于彼此具有相位差并连接到电压源型功率转换器单元的多相次级绕组。 电压源式功率转换器单元以相位差运行。 因此，复用移相变压器的构造简单，可以通过简单的相位控制操作来控制基本的电变量。 此外，可以降低AC系统的高次谐波缺陷，并且可以容易地提高DC电压。

公开(公告)号：US5790394A

公开(公告)日：1998-08-04

申请号：US767761

申请日：1996-12-17

Applicant: Frank W. Cabaniss ,  Gene F. Young ,  James S. Kluttz

Inventor： Frank W. Cabaniss ,  Gene F. Young ,  James S. Kluttz

IPC: H02J1/10 ,  H02J3/38 ,  H02M7/17 ,  H02M7/155

CPC classification number: H02J3/38 ,  H02J1/108 ,  H02M7/17 ,  Y10T307/707

Abstract: A dual AC input module providing AC line isolation of different phases without the use of relay control. Power supply load is supported through two AC line feeds, each feed being connected through a bridge rectifier to a common bulk DC power supply backplane. The parallel configuration of AC line feeds and bridge rectifiers eliminates the need for relay control logic to open relays and isolate a failed primary AC line feed prior to closing relays to connect a second AC feed to the power supply, as required with previous dual AC input module designs to isolate different line feeds of different phases.

Abstract translation: 双交流输入模块，不使用继电器控制，提供不同相的交流线路隔离。 通过两个交流线路馈电支持电源负载，每个馈电通过桥式整流器连接到通用的大容量直流电源背板。 交流线路馈电和桥式整流器的并联配置不需要继电器控制逻辑来打开继电器并隔离故障的主要交流线路馈电，在关闭继电器之前将第二个交流电源连接到电源，如以前的双交流输入 模块设计来隔离不同阶段的不同线路馈送。