-
公开(公告)号：US09697961B2
公开(公告)日：2017-07-04
申请号：US13840627
申请日：2013-03-15
CPC分类号： H01H9/00 , H01L31/02021 , H02S50/00 , Y02E10/50 , Y10T307/696 , Y10T307/766 , Y10T307/858
摘要： A PhotoVoltaic (PV) panel bypass switching arrangement includes first and second switches. The first switch is to be coupled between a power system and a first end of a circuit path of the PV panel in which PV cells are connected, and is controllable to connect the first end of the circuit path to a power system and to disconnect the first end of the circuit path from the power system. The second switch is to be coupled between (i) a point between the first switch and the power system and (ii) a point between a second end of the circuit path and the power system, and is controllable to open and close a bypass circuit path that bypasses the circuit path. The first and second switches are controlled based on a determination as to whether the circuit path of the PV panel is to be bypassed.
-
公开(公告)号：US09673721B2
公开(公告)日：2017-06-06
申请号：US14798924
申请日：2015-07-14
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/33523 , Y02B70/1475
摘要： One or more first switches coupled to one of a primary transformer winding and a secondary transformer winding are controlled based on a first switch control reference clock signal. A reflected voltage across the other of the primary and secondary windings is sensed, and a second switch control reference clock signal is synchronized to the first switch control reference clock signal based on the reflected voltage. One or more second switches coupled to the other of the primary and secondary windings are controlled based on the second switch control reference clock signal. A digital isolator could instead be used to transfer a switch control reference signal across an isolation boundary. Switch control signals for controlling a set of switches on one side of the isolation boundary may be derived from a switch control reference signal that is synchronized with the transferred switch control reference clock signal.
-
公开(公告)号：US09261538B2
公开(公告)日：2016-02-16
申请号：US14298187
申请日：2014-06-06
IPC分类号： G01R15/14
CPC分类号： G01R31/42 , H01L2224/48463
摘要： An electrical circuit and method includes a transmitter in a first power domain with a first supply voltage referenced to a first voltage reference. The transmitter has an oscillator generating a first carrier signal, and an analog modulator receiving an input sensor signal and the first carrier signal and generating a modulated carrier signal. A receiver is in a second power domain with a second supply voltage referenced to a second voltage reference. The second voltage reference is different from the first voltage reference. The receiver includes a demodulator that receives and demodulates the modulated carrier signal and generates an output sensor signal. At least one coupler includes a pair of galvanically isolated elements with one galvanically isolated element in each of the first and second power domains. The modulated carrier signal couples from the first power domain to the second power domain through the at least one coupler.
摘要翻译： 一种电路和方法包括在第一功率域中具有参考第一参考电压的第一电源电压的发射器。 所述发射机具有产生第一载波信号的振荡器，以及接收输入传感器信号和所述第一载波信号并产生调制载波信号的模拟调制器。 接收器处于第二电源域，第二电源电压参考第二电压基准。 第二参考电压不同于第一参考电压。 该接收机包括一个解调器，该解调器接收和解调调制载波信号并产生一个输出传感器信号。 至少一个耦合器包括一对电隔离元件，在第一和第二电力域中的每一个中具有一个电隔离元件。 调制载波信号通过至少一个耦合器从第一功率域耦合到第二功率域。
-
公开(公告)号：US20160018456A1
公开(公告)日：2016-01-21
申请号：US14611968
申请日：2015-02-02
申请人： Kadir Yilmaz
发明人： Kadir Yilmaz
CPC分类号： G01R31/026 , H02S50/00 , H02S50/10
摘要： A method for determining continuity in a PV panel string by calculating a discharge ratio includes operatively coupling a PV panel to a PV panel string; measuring a first voltage between points of coupling of the PV panel to the PV panel string; disconnecting the PV panel from the PV panel string; waiting for a discharge period to expire; measuring a second voltage at an expiration of the discharge period; calculating a discharge ratio of the second voltage to the first voltage; and comparing the discharge ratio to a predetermined threshold ratio. An apparatus for determining continuity in a PV panel string includes a discharge resistance serially connected in the PV panel string; a capacitance parallel connected to the discharge resistance; a voltage sensor parallel connected to the discharge resistance; and a first switch parallel connected to the discharge resistance.
摘要翻译： 通过计算放电比率来确定PV面板串中的连续性的方法包括可操作地将PV面板耦合到PV面板串; 测量PV板与PV板串的耦合点之间的第一电压; 将PV面板与PV面板串相连; 等待放电期到期; 在放电期间到期时测量第二电压; 计算第二电压与第一电压的放电比; 并将放电比与预定的阈值比进行比较。 一种用于确定PV面板串中的连续性的装置包括串联连接在PV面板串中的放电电阻; 与放电电阻并联连接的电容; 与放电电阻并联连接的电压传感器; 以及并联连接到放电电阻的第一开关。
-
公开(公告)号：US20150326108A1
公开(公告)日：2015-11-12
申请号：US14455410
申请日：2014-08-08
申请人： Gerald Augustoni
发明人： Gerald Augustoni
IPC分类号： H02M3/04
CPC分类号： H02M3/158 , H02M2001/0048 , H02M2001/0077 , Y02B70/1491 , Y10T307/707
摘要： A system includes a first buck type direct current (DC) to DC converter having: a first control switch; a first synchronized switch; an inductor; and a capacitor. The system further includes a second buck type DC to DC converter having: a second control switch; a second synchronized switch; the inductor; and the capacitor. The system further includes a controller operatively connected to the first buck type DC to DC converter and the second buck type DC to DC converter, wherein the controller controls a conduction state of the first control switch and the second control switch; and an output terminal pair operatively connected to the capacitor.
摘要翻译： 一种系统包括：第一降压型直流（DC）至直流转换器，具有：第一控制开关; 第一个同步开关; 电感; 和电容器。 该系统还包括具有：第二控制开关的第二降压型DC-DC转换器; 第二同步开关; 电感; 和电容器。 该系统还包括可操作地连接到第一降压型DC-DC转换器和第二降压型DC-DC转换器的控制器，其中控制器控制第一控制开关和第二控制开关的导通状态; 以及可操作地连接到电容器的输出端子对。
-
公开(公告)号：US20150171759A1
公开(公告)日：2015-06-18
申请号：US14132686
申请日：2013-12-18
发明人： Gabriel Scarlatescu
IPC分类号： H02M3/335
CPC分类号： H02M3/33553 , H02M3/33523 , H02M3/33546 , H02M3/33584 , H02M3/33592 , H02M2001/0058 , H02M2001/0064 , Y02B70/1491
摘要： In a switching mode power converter coupled between first and second terminal pairs, a first circuit path includes a first inductance and a first switch. A tapped transformer has a first winding coupled across the first inductance and a tapped second winding with a tapped winding portion. A second circuit path includes a capacitance coupled to a second inductance, and the second circuit path is coupled to the first inductance through the tapped winding portion in a third circuit path and through the second winding in a fourth circuit path. During their respective conduction periods, the first switch couples the first inductance across the first terminal pair, a second switch completes a circuit between the second terminal pair and the second circuit path or the third circuit path, and a third switch completes a circuit that includes another of the second circuit path and the fourth circuit path.
摘要翻译： 在耦合在第一和第二端子对之间的开关模式功率转换器中，第一电路路径包括第一电感和第一开关。 抽头变压器具有耦合在第一电感上的第一绕组和具有抽头绕组部分的抽头第二绕组。 第二电路路径包括耦合到第二电感的电容，并且第二电路通过在第三电路路径中的抽头绕组部分耦合到第一电感，并且在第四电路路径中通过第二绕组。 在它们各自的导通周期期间，第一开关将第一电感耦合跨越第一端子对，第二开关完成第二端子对和第二电路路径或第三电路路径之间的电路，第三开关完成包括 第二电路路径和第四电路路径中的另一个。
-
公开(公告)号：US20170099031A1
公开(公告)日：2017-04-06
申请号：US15366488
申请日：2016-12-01
CPC分类号： H02S50/00 , H01H9/00 , H01L31/02021 , H02J3/383 , H02J3/40 , H02J3/46 , H02S40/36 , H02S50/10 , Y02E10/563 , Y10T307/766 , Y10T307/865
摘要： Intelligent safety disconnect switching methods and arrangements for PhotoVoltaic (PV) panels are disclosed. A switching device that is connected between a PV panel and a PV panel string detects a low current condition or an arc fault condition in the PV panel string. The switching device is automatically controlled to disconnect thePV panel from the PV panel string responsive to detection of the low current condition or the arc fault condition. Switching device control could also be responsive to a disconnect command. For example, such a command could be generated by a grid sensor responsive to determining that an inverter, to which the PV panel string is connected, is not connected to an electrical grid.
-
公开(公告)号：US09134359B2
公开(公告)日：2015-09-15
申请号：US14003579
申请日：2012-03-08
申请人： Raymond Kenneth Orr
发明人： Raymond Kenneth Orr
CPC分类号： G01R31/04 , G01R31/026 , G01R31/31917 , H01L31/02021 , H02S50/00 , H02S50/10 , Y02E10/50
摘要： Power generating component connectivity testing methods and apparatus are disclosed. At a power generating component, a connectivity testing condition is detected. A connectivity testing procedure is performed on detection of the connectivity testing condition, to test connectivity in a system that includes the power generating component and an unpowered electrical system. Connectivity is tested before the electrical system is connected to a power grid. An indication of connectivity can be provided by receiving connectivity information indicating connectivity between power generating components and the unpowered electrical system; and providing a representation of the connectivity between the power generating components and the electrical system. This representation could include, for example, one or more of: a connectivity alert, a visual representation of the power generating components; and a visual representation of the electrical system.
摘要翻译： 公开了发电部件连接测试方法和装置。 在发电部件，检测到连通性测试条件。 对连接测试条件的检测进行连接测试程序，以测试包括发电部件和无电力电气系统的系统中的连接性。 在电气系统连接到电网之前测试连接。 可以通过接收指示发电部件与无动力电气系统之间的连通性的连接信息来提供连接的指示; 并且提供发电部件和电气系统之间的连接性的表示。 该表示可以包括例如以下中的一个或多个：连接警报，发电部件的视觉表示; 以及电气系统的视觉表示。
-
公开(公告)号：US09077254B2
公开(公告)日：2015-07-07
申请号：US13940774
申请日：2013-07-12
IPC分类号： H02M3/335
CPC分类号： H02M3/33538 , Y02B70/1433
摘要： An active clamp circuit includes a clamp capacitance and a clamp switch coupled in a circuit path, and a diode coupled across the clamp switch.
摘要翻译： 有源钳位电路包括钳位电容和耦合在电路路径中的钳位开关和耦合在钳位开关上的二极管。
-
公开(公告)号：US20150145336A1
公开(公告)日：2015-05-28
申请号：US14092346
申请日：2013-11-27
CPC分类号： H02M1/10 , H02J3/1842 , H02J3/385 , H02J7/34 , H02M1/4216 , H02M7/04 , H02M7/44 , H02M7/493 , Y02E10/58 , Y02E40/22 , Y10T307/549
摘要： A method for converting electrical power includes providing a modular power converter having a mode control module and a plurality of autonomously operating power conversion modules operatively connected to a first power bus; selecting, by the mode control module, individual modes of operation for the plurality of power conversion modules to meet a power conversion requirement; receiving electrical power of a first power type from the first power bus by at least one of the power conversion modules; and converting the received electrical power into electrical power of a second power type by the at least one power conversion module.
摘要翻译： 一种用于转换电力的方法包括提供具有模式控制模块和可操作地连接到第一电力总线的多个自主操作的电力转换模块的模块化功率转换器; 由模式控制模块选择多个功率转换模块的各种操作模式以满足功率转换要求; 通过所述功率转换模块中的至少一个从所述第一电力总线接收第一电力类型的电力; 以及通过所述至少一个电力转换模块将所接收的电功率转换为第二电力类型的电力。
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.021 秒)
