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1. 发明授权

US08797775B2 Driving circuit for low voltage drop bridge rectifier and method thereof 有权
标题翻译：低压降桥式整流器的驱动电路及其方法
公开(公告)号：US08797775B2
公开(公告)日：2014-08-05
申请号：US13400890
申请日：2012-02-21
申请人： Yike Li , Changjiang Chen , Rui Wang
发明人： Yike Li , Changjiang Chen , Rui Wang
IPC分类号： H02M7/155 , H02M7/217 , H02M1/08 , H02M7/162 , H02M7/17
CPC分类号： H02M1/08 , H02M7/217
摘要： The embodiments of the present circuit and method disclose a bridge rectifier and a driving circuit. The bridge rectifier having a first input, a second input, a first output, and a second output may comprise two high side diodes and two low side switches. The driving circuit may be coupled to the first input of the bridge rectifier and the second input of the bridge rectifier, and the driving circuit may be configured to provide a first driving signal and a second driving signal. The first driving signal may be coupled to a first low side switch and the second driving signal may be coupled to a second low side switch. The first driving signal may be limited to less than a first predetermined driving voltage and the second driving signal may be limited to less than a second predetermined driving voltage.
摘要翻译：本电路和方法的实施例公开了桥式整流器和驱动电路。具有第一输入，第二输入，第一输出和第二输出的桥式整流器可以包括两个高侧二极管和两个低侧开关。驱动电路可以耦合到桥式整流器的第一输入端和桥式整流器的第二输入端，并且驱动电路可以被配置为提供第一驱动信号和第二驱动信号。第一驱动信号可以耦合到第一低侧开关，并且第二驱动信号可以耦合到第二低侧开关。第一驱动信号可以被限制为小于第一预定驱动电压，并且第二驱动信号可以被限制为小于第二预定驱动电压。

2. 发明授权

US08792261B2 Power conversion device 有权
标题翻译：电源转换装置
公开(公告)号：US08792261B2
公开(公告)日：2014-07-29
申请号：US13202676
申请日：2010-02-24
申请人： Shigenori Inoue , Shuji Katoh , Jun Narushima , Tetsuya Kato
发明人： Shigenori Inoue , Shuji Katoh , Jun Narushima , Tetsuya Kato
IPC分类号： H02M7/17
CPC分类号： H02M7/797 , H01F27/42 , H02J3/1857 , H02J3/36 , H02M1/08 , H02M7/217 , H02M7/219 , H02M7/5388 , H02M2001/0009 , H02M2007/4835 , Y02E40/26 , Y02E60/60
摘要： A power conversion device connected with a three-phase power system through a transformer, including unit converters cascade-connected so that reactors are unnecessary, and volume and weight are reduced. The secondary winding of the transformer is an open winding having six terminals. A first converter group, includes a circuit which has three converter arms, which are star-connected, connected to three of the terminals of the secondary winding. A second converter group, having three different converter arms which are star-connected, is connected to three other terminals of the secondary winding. A neutral point (the point where the star connection is made) of the first converter group, and a neutral point of the second converter group are made to be the output terminals of the power conversion device.
摘要翻译：电力转换装置通过变压器与三相电力系统连接，包括串联连接的单元转换器，使反应器不必要，体积和重量减少。变压器的次级绕组是具有六个端子的开路绕组。第一转换器组包括具有三个转换器臂的电路，它们是星形连接的，连接到次级绕组的三个端子。具有星形连接的三个不同转换器臂的第二转换器组连接到次级绕组的另外三个端子。将第一转换器组的中性点（进行星形连接的点）和第二转换器组的中性点作为电力转换装置的输出端子。

3. 发明授权

US5886888A Voltage source type power converting apparatus 失效
标题翻译：电压型电力转换装置
公开(公告)号：US5886888A
公开(公告)日：1999-03-23
申请号：US638054
申请日：1996-04-26
申请人： Masahiko Akamatsu , Shinzo Tamai , Fuminori Nakamura , Shotaro Murakami , Tomohiko Aritsuka , Takeaki Asaeda
发明人： Masahiko Akamatsu , Shinzo Tamai , Fuminori Nakamura , Shotaro Murakami , Tomohiko Aritsuka , Takeaki Asaeda
IPC分类号： H02M7/155 , H02J3/01 , H02J3/36 , H02M7/12 , H02M7/17 , H02M7/19 , H02M7/72 , H02M7/515
CPC分类号： H02J3/36 , H02J3/01 , H02M7/17 , H02M7/19 , H02M7/493 , H02M7/23 , H02M7/25 , H02M7/487 , Y02E40/10 , Y02E40/40 , Y02E60/60
摘要： 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.
摘要翻译：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。

4. 发明授权

US5790394A Dual AC power supply input module 失效
标题翻译：双交流电源输入模块
公开(公告)号：US5790394A
公开(公告)日：1998-08-04
申请号：US767761
申请日：1996-12-17
申请人： Frank W. Cabaniss , Gene F. Young , James S. Kluttz
发明人： Frank W. Cabaniss , Gene F. Young , James S. Kluttz
IPC分类号： H02J1/10 , H02J3/38 , H02M7/17 , H02M7/155
CPC分类号： H02J3/38 , H02J1/108 , H02M7/17 , Y10T307/707
摘要： 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.
摘要翻译：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。

5. 发明授权

US5677925A Power converter device for direct current power supply to an electric arc furnace 失效
标题翻译：用于电弧炉直流供电的电力转换装置
公开(公告)号：US5677925A
公开(公告)日：1997-10-14
申请号：US549234
申请日：1995-10-27
申请人： Jacques Du Parc , Christophe Glinski , Michel Wursteisen
发明人： Jacques Du Parc , Christophe Glinski , Michel Wursteisen
IPC分类号： H05B7/18 , C21C5/52 , G05F1/02 , H02J3/18 , H02M7/12 , H02M7/162 , H02M7/17 , H05B7/144 , H05B7/148
CPC分类号： H02M7/17 , C21C5/5229 , H02M7/162 , H05B7/144 , Y02P10/216 , Y02P10/256 , Y02P10/259
摘要： A power converter device for supplying direct current to an electric arc furnace comprises at least one transformer with its primary fed with a three-phase alternating current and delivering to at least one secondary a three-phase current applied to a rectifier system outputting to the load a rectified voltage and current. The rectifier system comprises controlled semiconductors for each secondary and a freewheel circuit. The controlled semiconductors are triggered with essentially variable firing angles, modified to increase the duration of conduction in the freewheel circuit whilst reducing the duration of conduction in the triggered semiconductors, and vice versa, so as to deliver to the load a substantially constant active power or reactive power despite variations in the impedance of the load.
摘要翻译：用于向电弧炉供给直流电的功率转换器装置包括至少一个变压器，其主要被馈送三相交流电并且传送至至少一个二次施加到整流器系统的三相电流，输出到负载整流电压和电流。整流器系统包括用于每个次级和续流电路的受控半导体。控制半导体以基本上可变的触发角度触发，被修改以增加续流电路中的导通持续时间，同时减少触发半导体中的导通持续时间，反之亦然，从而向负载输送基本上恒定的有功功率或无功功率尽管负载阻抗有变化。

6. 发明授权

US5611950A Arc welding power source 失效
标题翻译：电弧焊电源
公开(公告)号：US5611950A
公开(公告)日：1997-03-18
申请号：US549236
申请日：1995-10-27
申请人： Masamitsu Tochino , Norikazu Osaki
发明人： Masamitsu Tochino , Norikazu Osaki
IPC分类号： B23K9/10 , H02M7/17
CPC分类号： B23K9/1043 , H02M7/17
摘要： An arc welding power source comprises a pair of rectifiers connected in parallel with each of double star connection three phase rectifying circuits and a capacitor connected in parallel with the entire rectifying circuit without a DC reactor. As a result, the arc welding power source can supply stable welding current having a smooth waveform and enough short circuit current.
摘要翻译：电弧焊电源包括与双星连接三相整流电路并联连接的一对整流器，和没有直流电抗器的整流整流电路并联连接的电容器。因此，电弧焊电源可以提供稳定的焊接电流，具有平滑的波形和足够的短路电流。

7. 发明授权

US5455759A Symmetrical, phase-shifting, fork transformer 失效
标题翻译：对称，相移，叉式变压器
公开(公告)号：US5455759A
公开(公告)日：1995-10-03
申请号：US264922
申请日：1994-06-24
申请人： Derek A. Paice
发明人： Derek A. Paice
IPC分类号： H01F30/12 , H02M7/17 , H02M7/00 , H02M7/06
CPC分类号： H02M7/17 , H01F30/12
摘要： In 12-pulse and 18-pulse AC/DC converter systems a single wye connected auto transformer using appropriate segments of voltage from each phase connected in fork fashion is used to develop 6-phase and 9-phase voltages in a symmetrical manner such that inherent compensation is made for the dc converter output voltage to be within 4.2% of that of a 6-pulse converter. Additional design adjustments for step-up or step-down of voltage can be made without compromising the transformer symmetry. An unconnected but closed delta winding provides a path in which third harmonic currents, and multiples thereof can flow.
摘要翻译：在12脉冲和18脉冲AC / DC转换器系统中，使用以叉形连接的每相的适当的电压段的单个Y形连接的自动变压器以对称方式开发6相和9相电压，使得固有的补偿直流转换器输出电压在6脉冲转换器的4.2％以内。可以在不影响变压器对称性的情况下进行用于升压或降压的附加设计调整。未连接但闭合的三角形绕组提供了三次谐波电流及其倍数可以流动的路径。

8. 发明授权

US4800481A Static converter circuit and method for controlling it 失效
标题翻译：静态转换电路及其控制方法
公开(公告)号：US4800481A
公开(公告)日：1989-01-24
申请号：US74621
申请日：1987-07-17
申请人： Berislav Knaffl , Peter Knapp , Alfred-Christophe Rufer , Urs Zurcher , Birger Gotaas
发明人： Berislav Knaffl , Peter Knapp , Alfred-Christophe Rufer , Urs Zurcher , Birger Gotaas
IPC分类号： H02M5/27 , H02M7/19 , H02M7/48 , H02M7/49 , H02M7/17
CPC分类号： H02M7/49 , H02M5/27 , H02M7/19
摘要： A static converter circuit has a voltage summing transformer (Tr-Tr13) with several part transformers (Tr1-Tr13) the static-converter-side winding of which are connected via one four-quadrant actuator each to a direct-voltage link circuit. The four-quadrant actuators are single-phase bridge circuits with one GTO thyristor each and a diode, which is antiparallel thereto, per bridge branch. The static-converter-side windings of the part transformers can be short circuited in each case by means of an alternating-current circuit breaker with antiparallel-connected thyristors. Each part transformer has a separate core. The power-system-side windings of the power transformers are connected in series and are connected at their ends to a railroad power system with 162/3-Hz. The direct-voltage link circuit is connected via power-system-commutated static converters and a static converter transformer to a national power system with 50 Hz. For generating an approximately sinusoidal alternating voltage part voltages of equal amplitude which are supplied by the part transformers are added and/or subtracted step-by-step in the voltage summing transformer. Each thyristor of a four-quadrant actuator is turned-on and turned-off at the most, twice per period of the alternating voltage. This reduces power losses and expenditures for cooling the semiconductor components. The static converter circuit is suitable for frequency converters and reactive-power compensators.
摘要翻译：静态转换器电路具有电压求和变压器（Tr-Tr13），其具有多个部分变压器（Tr1-Tr13），其静态转换器侧绕组通过一个四象限致动器连接到直流电压链路电路。四象限致动器是单相桥式电路，每个桥型分支具有一个GTO晶闸管和二极管，其与其并联。通过具有反并联连接的晶闸管的交流断路器，部分变压器的静态转换器侧绕组在每种情况下都可以短路。每个零件变压器都有一个单独的磁芯。电力变压器的电力系统侧绕组串联连接，并连接到162 / 3Hz的铁路电力系统。直流电压电路通过电力系统整流静态转换器和静态转换变压器连接到具有50Hz的国家电力系统。为了产生由零部件变压器提供的大约正弦交变电压的相等振幅的部分电压在电压求和变压器中逐步加和/或减。四象限致动器的每个晶闸管每交流电压的每个周期最多接通和关断两次。这降低了功率损耗和冷却半导体元件的支出。静态转换电路适用于变频器和无功补偿器。

9. 发明授权

US4245295A Apparatus for the controlled voltage supply of D.C. drives 失效
标题翻译：用于直流驱动控制电压供应的装置
公开(公告)号：US4245295A
公开(公告)日：1981-01-13
申请号：US944768
申请日：1978-09-22
申请人： Georg F. Gotz , Hans Gross
发明人： Georg F. Gotz , Hans Gross
IPC分类号： H02M7/17 , H02P5/68 , H02M7/155
CPC分类号： H02M7/17 , H02P5/68
摘要： Several static frequency changers and control units for controlling the voltage supply of D.C. motors are combined in one equipment, functions common to all frequency changers being contained in a central unit.
摘要翻译：用于控制直流电动机的电压供应的几个静态变频器和控制单元组合在一个设备中，所有变频器的功能都包含在中央单元中。

10. 发明授权

US3622804A System for periodically reversing electrical energy through a load 失效
标题翻译：通过负载定期反转电能的系统
公开(公告)号：US3622804A
公开(公告)日：1971-11-23
申请号：US3622804D
申请日：1970-08-19
申请人： UDYLITE CORP
发明人： MITCHELL CLAYBOURNE JR
IPC分类号： H02M7/17 , H03K17/00
CPC分类号： H02M7/17
摘要： A system for feeding electrical energy from an alternating current source to a load through a rectifier arrangement, the arrangement comprising one or more pairs of back-to-back rectifying devices connected in parallel between an alternating current source and the load. Each of the elements in the pairs of rectifying elements are separately controlled such that the system may provide a main current flow of a preselected configuration and wherein the opposite rectifying element is periodically selectively energized to provide a periodic reversal of the energy through the load.

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