公开(公告)号：US20110227582A1

公开(公告)日：2011-09-22

申请号：US12728092

申请日：2010-03-19

申请人： SHAIK SHAFI AHAMED ,  SRINIVASA RAO DANGETI ,  NARASIMHA RAO PESALA ,  THAPPETA PEDDAIAH ,  SREENIVASULU REDDY VEDICHERLA ,  VEDAGIRIBABU SUBRAMANYAM ,  ZHENNING LIU

发明人： SHAIK SHAFI AHAMED ,  SRINIVASA RAO DANGETI ,  NARASIMHA RAO PESALA ,  THAPPETA PEDDAIAH ,  SREENIVASULU REDDY VEDICHERLA ,  VEDAGIRIBABU SUBRAMANYAM ,  ZHENNING LIU

IPC分类号： G01R31/11

CPC分类号： G01R31/11 ,  G01R31/008

摘要： Hidden or overlapped peaks may occur when using SSTDR technology to determine ware faults. These hidden/overlapped peaks may cause false negative determinations (no fault) when testing a wire for faults. In one method of the present invention, the symmetrical property of the SSTDR wave envelope is used to resolve hidden/overlapped peaks. In another method of the present invention, the calibrated normalized loop back SSTDR wave envelope may be used to resolve hidden/overlapped peaks.

摘要翻译： 当使用SSTDR技术来确定零件故障时，可能会发生隐藏或重叠的峰值。 这些隐藏/重叠的峰值可能会在测试导线故障时产生假负值（无故障）。 在本发明的一种方法中，使用SSTDR波包的对称性来解决隐藏/重叠的峰。 在本发明的另一种方法中，校准的归一化环回SSTDR波包络可用于解析隐藏/重叠峰。

公开(公告)号：US20110309809A1

公开(公告)日：2011-12-22

申请号：US12816897

申请日：2010-06-16

申请人： NARENDRA RAO ,  VINOD KUNNAMBATH ,  PRASHANT PURUSHOTHAM PRABHU K ,  EZEKIEL A ,  RANDY FULLER ,  ZHENNING LIU

发明人： NARENDRA RAO ,  VINOD KUNNAMBATH ,  PRASHANT PURUSHOTHAM PRABHU K ,  EZEKIEL A ,  RANDY FULLER ,  ZHENNING LIU

IPC分类号： G05F1/10

CPC分类号： H03K17/167 ,  H02H9/001

摘要： Pre-charge circuitry allows capacitive loads connected to a solid state power controller to be gradually charged up by a PWM, generated with a cycle by cycle current limit, switching a single MOSFET in series with an inductor, before the SSPC is turned on. The pre-charge circuitry may require only three additional components, e.g., a MOSFET, an inductor and a diode, along with a designated MOSFET gate driver.

摘要翻译： 预充电电路允许连接到固态功率控制器的容性负载由在逐个SSPC开启之前由逐周期电流限制产生的PWM逐渐充电，从而切换与电感串联的单个MOSFET。 预充电电路可能仅需要三个附加组件，例如MOSFET，电感器和二极管，以及指定的MOSFET栅极驱动器。

公开(公告)号：US20090228223A1

公开(公告)日：2009-09-10

申请号：US12041941

申请日：2008-03-04

申请人： ZHENNING LIU ,  Randy J. Fuller ,  Wenjiang Yu ,  Yang Ye ,  Guangjun G. Liu

发明人： ZHENNING LIU ,  Randy J. Fuller ,  Wenjiang Yu ,  Yang Ye ,  Guangjun G. Liu

IPC分类号： H02H3/00 ,  G01R31/02

CPC分类号： G01R31/008 ,  G01R31/025 ,  G01R31/086 ,  G01R31/11 ,  H04B3/546 ,  H04B2203/5445 ,  H04B2203/5458 ,  H04B2203/5495

摘要： A power line communication-based aircraft power distribution system may allow for both power line communication (PLC) technology and spread spectrum time domain reflectometry (SSTDR) technology to be utilized in aircraft power distribution systems to achieve key maintenance functions. Unlike conventional power distribution systems, which may, for example, use only SSTDR for fault detection, the present invention includes a hardware platform that may allow both the PLC and the SSTDR to be utilized in aircraft power distribution systems to achieve key maintenance functions, such as real time wire fault location, and cost and weight savings. Further, unlike conventional power distribution systems, which may only detect and locate damage in feeder conductor wire sections before the power is applied to the load, the power distribution system of the present invention may permit real time wire fault location.

摘要翻译： 基于电力线通信的飞机配电系统可以允许在飞机配电系统中利用电力线通信（PLC）技术和扩频时域反射计（SSTDR）技术来实现关键维护功能。 与常规配电系统不同，传统配电系统可能例如仅使用SSTDR进行故障检测，本发明包括硬件平台，其可以允许PLC和SSTDR在飞机配电系统中使用以实现关键维护功能，例如 作为实时线路故障定位，并节省成本和重量。 此外，与在功率施加到负载之前只能检测和定位馈线导线部分中的损坏的常规配电系统不同，本发明的配电系统可以允许实时线路故障定位。

公开(公告)号：US20130207705A1

公开(公告)日：2013-08-15

申请号：US13372282

申请日：2012-02-13

申请人： PRASHANT PURUSHOTHAM PRABHUK ,  NARENDRA RAO ,  EZEKIEL A. ,  VINOD KUNNAMBATH ,  RANDY FULLER ,  DAVID LAZAROVICH ,  ZHENNING LIU

发明人： PRASHANT PURUSHOTHAM PRABHUK ,  NARENDRA RAO ,  EZEKIEL A. ,  VINOD KUNNAMBATH ,  RANDY FULLER ,  DAVID LAZAROVICH ,  ZHENNING LIU

IPC分类号： H03K3/289

CPC分类号： H02J1/08 ,  H02J13/0003

摘要： A power distribution system includes the use of a master digital signal processor (DSP) and two slave DSPs connected to the master DSP. The slaves DSPs may be connected to each of a plurality of solid state power channels (SSPC) controlling power distribution functions to each of the channels. A power control strategy may use one power supply for the master DSP, a second power supply shared between the slave DSPs, and a third power supply shared between each of the SSPC channels.

摘要翻译： 配电系统包括使用主数字信号处理器（DSP）和连接到主DSP的两个从DSP。 从站DSP可以连接到控制每个信道的功率分配功能的多个固态功率信道（SSPC）中的每一个。 功率控制策略可以使用主DSP的一个电源，从DSP之间共享的第二电源以及每个SSPC信道之间共享的第三电源。

公开(公告)号：US20110222200A1

公开(公告)日：2011-09-15

申请号：US12720187

申请日：2010-03-09

申请人： RANDY FULLER ,  ZHENNING LIU

发明人： RANDY FULLER ,  ZHENNING LIU

IPC分类号： H02H3/08 ,  H02J4/00 ,  B60L3/00

CPC分类号： H01H9/548 ,  H02H3/087 ,  H02J4/00 ,  Y10T307/74

摘要： High-power power distribution in an aircraft may use solid state power controller (SSPC) technology. A conventional electromechanical contactor may be used, in series, with a solid state switching device (SSSD) to achieve high-power power distribution. Since the electromechanical contactor does not need to be rated for arc handlings during normal SSPC operation, the electromechanical contactor may be simplified, resulting in cost, weight, volume, and failure rate reductions. The power distribution apparatus and methods of the present invention may be applicable for both alternating current (AC) and direct current (DC) applications and can be modified to form a three phase SSPC.

摘要翻译： 飞机中的大功率配电可能使用固态功率控制器（SSPC）技术。 传统的机电接触器可以与固态开关装置（SSSD）串联使用，以实现大功率配电。 由于机电接触器在正常SSPC操作期间不需要额定电弧处理，所以可以简化机电接触器，导致成本，重量，体积和故障率降低。 本发明的配电装置和方法可以适用于交流（AC）和直流（DC）应用，并且可以被修改以形成三相SSPC。

公开(公告)号：US20100302729A1

公开(公告)日：2010-12-02

申请号：US12472596

申请日：2009-05-27

申请人： DON TEGART ,  ZHENNING LIU

发明人： DON TEGART ,  ZHENNING LIU

IPC分类号： H05K7/20 ,  H05K7/00

CPC分类号： H05K7/209

摘要： A high power solid state power controller packaging system and power panel are disclosed. The high power solid state power controller packaging system includes a plurality of discrete power devices assembled juxtaposed to one another in a row, a fin style heatsink, an input bus bar and an output bus bar, and a circuit card assembly connected to the plurality of discrete power devices for managing power signals among the plurality of discrete power devices. The power panel includes a chassis, a mounting bracket with connector sockets formed in the mounting bracket, and a plurality of high power solid state power control modules modularly mounted in the connector sockets.

摘要翻译： 公开了一种高功率固态功率控制器封装系统和电源板。 高功率固态功率控制器封装系统包括多个彼此并排配置的分立功率器件，散热片式散热片，输入母线和输出母线，以及与多个功率器件连接的电路卡组件 用于管理多个分立功率器件之间的功率信号的分立功率器件。 电源面板包括底盘，具有形成在安装支架中的连接器插座的安装支架和模块化地安装在连接器插座中的多个高功率固态功率控制模块。

公开(公告)号：US20130329329A1

公开(公告)日：2013-12-12

申请号：US13493558

申请日：2012-06-11

申请人： ZHENNING LIU ,  RANDY FULLER ,  WAYNE PEARSON

发明人： ZHENNING LIU ,  RANDY FULLER ,  WAYNE PEARSON

IPC分类号： H02H9/02 ,  B60L1/00

CPC分类号： H02H3/087 ,  H02H3/18 ,  H02H9/02

摘要： An electrical power distribution system (EPDS) for an aircraft, the EPDS may include a DC bus, a power source port, a solid state power controller (SSPC) of a first type interposed between the power source port and the DC bus, at least one load port and an SSPC of a second type interposed between the load port and the DC bus. Power input to the SSPC of the first type may be connected to a unidirectional solid state switching device (SSSD) of the SSPC of the first type. The SSPC of the first type may have forward and reverse current conducting capability and forward and reverse current blocking capability. Power input to the SSPC of the second type may be connected to a unidirectional SSSD of the SSPC of the second type. The SSPC of the second type may have forward and reverse current conducting capability and capability of blocking current from only one direction.

摘要翻译： 一种用于飞机的电力分配系统（EPDS），EPDS可以包括直流总线，电源端口，插入在电源端口和DC总线之间的第一类型的固态功率控制器（SSPC），至少 负载端口和插入在负载端口和DC总线之间的第二类型的SSPC。 可以将第一类型的SSPC的电力输入连接到第一类型的SSPC的单向固态切换装置（SSSD）。 第一类型的SSPC可具有正向和反向电流导通能力和正向和反向电流阻断能力。 对第二类型的SSPC的电力输入可以连接到第二类型的SSPC的单向SSSD。 第二类型的SSPC可以具有正向和反向电流导通能力和仅从一个方向阻断电流的能力。