-
公开(公告)号：US20200320969A1
公开(公告)日：2020-10-08
申请号：US16374286
申请日：2019-04-03
申请人： Raytheon Company
摘要： An hourglass transducer including a longitudinal driver, a shell, and a pair of endcaps is provided. The driver drives the transducer. The pair of endcaps is attached to ends of the driver and cap the shell enclosing the transducer. The shell includes a first shell end, a second shell end, and a pleated geometry. The first shell end and second shell end are structured with circular cross sections. The pleated geometry is between the first shell end and the second shell end. A perimeter of the pleated geometry is the same as perimeters of the circular cross sections of the first shell end and the second shell end.
-
公开(公告)号：US11417305B2
公开(公告)日：2022-08-16
申请号：US16374286
申请日：2019-04-03
申请人： Raytheon Company
摘要： An hourglass transducer including a longitudinal driver, a shell, and a pair of endcaps is provided. The driver drives the transducer. The pair of endcaps is attached to ends of the driver and cap the shell enclosing the transducer. The shell includes a first shell end, a second shell end, and a pleated geometry. The first shell end and second shell end are structured with circular cross sections. The pleated geometry is between the first shell end and the second shell end. A perimeter of the pleated geometry is the same as perimeters of the circular cross sections of the first shell end and the second shell end.
-
公开(公告)号：US09997997B2
公开(公告)日：2018-06-12
申请号：US14579921
申请日：2014-12-22
申请人： Raytheon Company
IPC分类号： H02J1/00 , H02J3/00 , H02M3/02 , H02M1/08 , H02M7/02 , H02M7/42 , H02J1/04 , H02J1/08 , H02M1/00
CPC分类号： H02M3/02 , H02J1/04 , H02J1/08 , H02M7/02 , H02M7/42 , H02M2001/008 , H02M2001/0087
摘要： A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.
-
公开(公告)号：US10797592B2
公开(公告)日：2020-10-06
申请号：US16004702
申请日：2018-06-11
申请人： Raytheon Company
摘要： A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.
-
公开(公告)号：US20220029350A1
公开(公告)日：2022-01-27
申请号：US16940195
申请日：2020-07-27
申请人： Raytheon Company
摘要： An apparatus includes a strain relief formed in helical shape and formed with a U-shaped channel. The strain relief can be used around a cable of a component or a spool extension of a fiber tray.
-
公开(公告)号：US20180294715A1
公开(公告)日：2018-10-11
申请号：US16004702
申请日：2018-06-11
申请人： Raytheon Company
CPC分类号： H02M3/02 , H02J1/04 , H02J1/08 , H02M7/02 , H02M7/42 , H02M2001/008 , H02M2001/0087
摘要： A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.
-
公开(公告)号：US11575228B2
公开(公告)日：2023-02-07
申请号：US16940195
申请日：2020-07-27
申请人： Raytheon Company
摘要： An apparatus includes a strain relief formed in helical shape and formed with a U-shaped channel. The strain relief can be used around a cable of a component or a spool extension of a fiber tray.
-
公开(公告)号：US20160181802A1
公开(公告)日：2016-06-23
申请号：US14579921
申请日：2014-12-22
申请人： Raytheon Company
CPC分类号： H02M3/02 , H02J1/04 , H02J1/08 , H02M7/02 , H02M7/42 , H02M2001/008 , H02M2001/0087
摘要： A regulated current-fed power system employs power branching units connected in series. Each power branching unit includes a plurality of parallel-redundant converter groups connected in series with each other within a current path for the regulated current. Each parallel-redundant converter group includes at least two direct current (DC)/DC converters connected in parallel with each other, each sharing the power load. A protection device connected in series with each DC/DC converter disconnects the respective DC/DC converter from the regulated current when the respective DC/DC converter short circuits, with the remaining DC/DC converter(s) then receiving more of the power load. An active clamp connected in parallel with all of the DC/DC converters within a parallel-redundant converter group temporarily sinks a portion of the regulated current when one of the DC/DC converters fails in a short-circuit condition. The active clamp shunts the regulated current around all DC/DC converters within the parallel-redundant converter group converters fail in a short-circuit condition.
摘要翻译： 调节电流馈电系统采用串联连接的功率分支单元。 每个功率分支单元包括在用于调节电流的电流路径内彼此串联连接的多个并联冗余转换器组。 每个并联冗余转换器组包括至少两个彼此并联连接的直流（DC）/ DC转换器，每个共享电力负载。 与每个DC / DC转换器串联连接的保护装置在相应的DC / DC转换器短路时与相应的DC / DC转换器断开，DC / DC转换器的短路随着其余的DC / DC转换器接收到更多的功率负载 。 在并联冗余转换器组中的所有DC / DC转换器并联连接的有源钳位器当其中一个DC / DC转换器在短路状态下故障时，临时吸收一部分稳压电流。 并联冗余转换器组转换器中的所有DC / DC转换器的有源钳位分流调节电流处于短路状态。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.011 秒)
