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1. 发明申请

US20130314828A1 FAULT CURRENT LIMITER 有权
标题翻译：故障电流限制
公开(公告)号：US20130314828A1
公开(公告)日：2013-11-28
申请号：US13479660
申请日：2012-05-24
申请人： Song Chen , Peng Li , Bradley Lehman , Gianfranco de Palma
发明人： Song Chen , Peng Li , Bradley Lehman , Gianfranco de Palma
IPC分类号： H02H9/02
CPC分类号： H02H9/02
摘要： A fault current limiter (FCL) for limiting a fault current in a power line during a fault condition. The FCL includes a magnetic coupling circuit for monitoring current in the power line through magnetic coupling; a sensing circuit for sensing the current in the power line and providing a signal indicative of the sensed current; a control circuit receiving the signal indicative of the sensed current in the power line and determining whether the sensed current indicates that the fault condition exists; and high and low impedance paths that are connected in parallel. The high impedance path includes a discharging impedance circuit for limiting the fault current. The low impedance path includes a reactor circuit and a switching unit having an ON state for conducting current through the low impedance path and an OFF state for conducting current through the high impedance path.
摘要翻译：用于在故障状态期间限制电力线路中的故障电流的故障限流器（FCL）。 FCL包括用于通过磁耦合监测电力线中的电流的磁耦合电路; 感测电路，用于感测电力线中的电流并提供指示感测电流的信号; 控制电路，接收表示电力线中检测到的电流的信号，并确定感测到的电流是否表明存在故障状况; 以及并联连接的高阻抗路径和低阻抗路径。高阻抗路径包括用于限制故障电流的放电阻抗电路。低阻抗路径包括电抗器电路和具有导通电流通过低阻抗路径的导通状态的开关单元和用于导通电流通过高阻抗路径的OFF状态。

2. 发明授权

US08830647B2 Fault current limiter 有权
标题翻译：故障限流器
公开(公告)号：US08830647B2
公开(公告)日：2014-09-09
申请号：US13479660
申请日：2012-05-24
申请人： Song Chen , Peng Li , Bradley Lehman , Gianfranco de Palma
发明人： Song Chen , Peng Li , Bradley Lehman , Gianfranco de Palma
IPC分类号： H02H9/08 , H02H3/00 , H02H7/00
CPC分类号： H02H9/02
摘要： A fault current limiter (FCL) for limiting a fault current in a power line during a fault condition. The FCL includes a magnetic coupling circuit for monitoring current in the power line through magnetic coupling; a sensing circuit for sensing the current in the power line and providing a signal indicative of the sensed current; a control circuit receiving the signal indicative of the sensed current in the power line and determining whether the sensed current indicates that the fault condition exists; and high and low impedance paths that are connected in parallel. The high impedance path includes a discharging impedance circuit for limiting the fault current. The low impedance path includes a reactor circuit and a switching unit having an ON state for conducting current through the low impedance path and an OFF state for conducting current through the high impedance path.
摘要翻译：用于在故障状态期间限制电力线路中的故障电流的故障限流器（FCL）。 FCL包括用于通过磁耦合监测电力线中的电流的磁耦合电路; 感测电路，用于感测电力线中的电流并提供指示感测电流的信号; 控制电路，接收表示电力线中检测到的电流的信号，并确定感测到的电流是否表明存在故障状况; 以及并联连接的高阻抗路径和低阻抗路径。高阻抗路径包括用于限制故障电流的放电阻抗电路。低阻抗路径包括电抗器电路和具有导通电流通过低阻抗路径的导通状态的开关单元和用于传导电流通过高阻抗路径的OFF状态。

3. 发明申请

US20140012520A1 PHOTOVOLTAIC STRING MONITOR 审中-公开
标题翻译：光伏监视器
公开(公告)号：US20140012520A1
公开(公告)日：2014-01-09
申请号：US13541105
申请日：2012-07-03
申请人： Ye Zhao , Peng Li , Bradley Lehman , Gianfranco de Palma
发明人： Ye Zhao , Peng Li , Bradley Lehman , Gianfranco de Palma
IPC分类号： G06F19/00 , H02H9/02
CPC分类号： H02H3/042 , H02H3/046 , H02H7/20
摘要： A photovoltaic string monitor that provides PV-string level monitoring to detect abnormal operating conditions. The photovoltaic string monitor includes an indicator unit for indicating normal conditions, existing abnormal conditions or past occurrence of abnormal conditions. In one embodiment, the photovoltaic string monitor includes a plurality of lights and an LCD display.
摘要翻译：一个光伏串监测器，提供PV级串级监控，以检测异常运行状况。光伏串监视器包括用于指示正常状态，现有异常状况或异常情况的过去发生的指示器单元。在一个实施例中，光伏串监视器包括多个灯和LCD显示器。

4. 发明授权

US07034647B2 Integrated magnetics for a DC-DC converter with flexible output inductor 失效
标题翻译：用于具有柔性输出电感器的DC-DC转换器的集成磁性
公开(公告)号：US07034647B2
公开(公告)日：2006-04-25
申请号：US10492238
申请日：2002-10-15
申请人： Liang Yan , Dayu Qu , Bradley Lehman
发明人： Liang Yan , Dayu Qu , Bradley Lehman
IPC分类号： H01F27/24 , H02M3/335
CPC分类号： H02M3/337 , H01F27/38 , H01F37/00 , H01F2038/026 , H02M3/33523
摘要： An integrated magnetic assembly that allows the primary and secondary windings of a transformer and a separate inductor winding to be integrated on a unitary magnetic structure is disclosed. The unitary magnetic structure includes first, second, and third legs that are physically connected and magnetically coupled. The primary and secondary windings of the transformer can be formed on the third leg of the unitary magnetic structure. Alternatively, the primary and secondary windings can be split between the first and second legs. Thus, the primary winding includes first and second primary windings disposed on the first and second legs and the secondary winding includes first and second secondary windings disposed on the first and second legs. The inductor winding may also be formed either on the third leg or it may split into first and second inductor windings and disposed on the first and second legs. In addition, one or more legs may include an energy storage component such as an air gap. This integration of the primary and secondary windings and the inductor winding on the unitary magnetic structure advantageously decouples the inductor function from the transformer function and allows the more optimal design of both the inductor and the transformer. The unitary magnetic structure may be coupled to a full bridge, a half bridge, or a push pull voltage input source to form a DC—DC converter.
摘要翻译：公开了一种集成磁性组件，其允许变压器的初级和次级绕组和单独的电感器绕组集成在单一磁性结构上。整体磁性结构包括物理连接和磁耦合的第一，第二和第三腿。变压器的初级和次级绕组可以形成在单一磁性结构的第三条腿上。或者，主和次级绕组可以在第一和第二腿之间分开。因此，初级绕组包括设置在第一和第二支脚上的第一和第二初级绕组，次级绕组包括设置在第一和第二支脚上的第一和第二次级绕组。电感器绕组也可以形成在第三腿上，或者它可以分成第一和第二电感器绕组并且设置在第一和第二腿上。此外，一个或多个腿可以包括诸如气隙的能量存储部件。主和次级绕组和电感绕组在整体磁性结构上的集成有利于将电感器功能与变压器功能相分离，并允许电感器和变压器两者更优化的设计。单一磁性结构可以耦合到全桥，半桥或推挽电压输入源，以形成DC-DC转换器。

5. 发明申请

US20100067263A1 DUAL INTERLEAVED FLYBACK CONVERTER FOR HIGH INPUT VOLTAGE 审中-公开
标题翻译：用于高输入电压的双路互换式逆变器
公开(公告)号：US20100067263A1
公开(公告)日：2010-03-18
申请号：US12485540
申请日：2009-06-16
申请人： Ting Qian , Bradley Lehman
发明人： Ting Qian , Bradley Lehman
IPC分类号： H02M3/335
CPC分类号： H02M3/285 , H02M2001/0074
摘要： An integrated magnetic flyback converter includes interleaved phases that can be connected in series for an input stage and in parallel for an output stage. An integrated magnetic core has legs with gaps that may weaken a coupling between a primary and secondary of the associated transformer. The primary and secondary of the transformer may be inversely coupled for each phase. The transformer leg gaps permit each phase to be operated with a duty cycle ratio greater than 50%. The interleaved converter has reduced output current ripple, reduced input component voltage stress, reduced magnetizing inductance, reduced magnetic component physical size and reduced common integrated magnetic core current spikes.
摘要翻译：集成的磁回扫转换器包括可以串联连接输入级并且用于输出级的交错相位。集成的磁芯具有间隙的腿，其可能削弱相关联的变压器的初级和次级之间的耦合。变压器的主要和次级可以针对每个相反向耦合。变压器腿间隙允许每个相以占空比大于50％的方式工作。交错转换器具有降低的输出电流纹波，降低的输入分量电压应力，降低的磁化电感，降低的磁性部件物理尺寸和减小的公共集成磁芯电流尖峰。

6. 发明申请

US20050195622A1 DC power converter and method of operation for continuous conduction mode 有权
标题翻译：直流电源转换器及其连续运行方式
公开(公告)号：US20050195622A1
公开(公告)日：2005-09-08
申请号：US11063248
申请日：2005-02-22
申请人： Bradley Lehman , Wei Song
发明人： Bradley Lehman , Wei Song
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M2007/4811
摘要： A current-fed DC-DC converter has a topology that improves converter performance and operates an input inductor in continuous conduction mode. The configuration and operation of the converter produces reduced requirements for circuit component ratings and leads to faster transient response time than conventional current-fed DC-DC converters. The converter can operate as an apparent current-fed full bridge converter in one stage, and an apparent current-fed half bridge converter in another stage. The input inductor is configured and operated to release stored energy to the load in conjunction with other energy storage components to provide a continuous output current that significantly reduces output voltage ripple, leading to reduced rating requirements and output components. The converter topology permits a portion of the switching stage to operate with no deadtime to further improve circuit responsiveness and efficiency.
摘要翻译：电流馈电的DC-DC转换器具有提高转换器性能并在连续导通模式下操作输入电感器的拓扑。转换器的配置和操作对电路元件额定值的要求降低，导致比传统的电流馈电DC-DC转换器更快的瞬态响应时间。该转换器可以在一级作为视在电流馈电全桥转换器工作，另一级可以工作在视在电流馈电的半桥转换器中。输入电感器被配置和操作以将存储的能量与其他能量存储组件一起释放到负载，以提供显着降低输出电压纹波的连续输出电流，从而降低额定值要求和输出组件。转换器拓扑允许开关级的一部分在没有死区时间的情况下工作，以进一步提高电路响应性和效率。

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