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公开(公告)号：US20150138859A1
公开(公告)日：2015-05-21
申请号：US14080800
申请日：2013-11-15
发明人： Rui Zhou , Luis Jose Garces , Fengfeng Tao , Maja Harfman Todorovic , Charles Michael Stephens , Lei Wang
IPC分类号： H02M7/5387 , H02M1/14
CPC分类号： H02M7/493 , H02M2001/123
摘要： A power conversion system is presented. The power conversion system includes a power converter. The power converter includes at least two circuits, where each of the at least two circuits includes two or more phase legs, where each of the two or more phase legs includes at least two semiconductor switches. Also, the at least two circuits includes an interphase reactor configured to couple one of the two or more phase legs to at least one other phase leg in the two or more phase legs. Moreover, the power conversion system includes a controller configured to obtain a switching pattern for each of the at least two semiconductor switches of the at least two circuits and selectively switch each of the at least two semiconductor switches based on the obtained switching pattern to reduce a common mode signal in the power conversion system. Method for power conversion is also presented.
摘要翻译： 介绍了电力转换系统。 电力转换系统包括电力转换器。 功率转换器包括至少两个电路，其中至少两个电路中的每一个包括两个或多个相位支路，其中两个或多个相位支路中的每一个包括至少两个半导体开关。 此外，至少两个电路包括间相反应器，其被配置为将两个或多个相位腿中的一个耦合到两个或更多个相位腿中的至少一个其他相位支路。 此外，功率转换系统包括控制器，其被配置为获得至少两个电路中的至少两个半导体开关中的每一个的开关模式，并且基于所获得的开关模式选择性地切换至少两个半导体开关中的每一个，以减少 电源转换系统中的共模信号。 还介绍了电源转换方法。
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公开(公告)号：US20190343020A1
公开(公告)日：2019-11-07
申请号：US15968370
申请日：2018-05-01
发明人： Maja Harfman Todorovic , Philip Michael Cioffi , Xu She , Gary Dwayne Mandrusiak , Rajib Datta , Michael Joseph Schutten
摘要： A heat sink for cooling an electronic component includes a substrate comprising an electrically non-conductive material and an inlet port and an outlet port extending outward from the substrate. The inlet and outlet ports are fluidically coupled to a fluid flow surface of the heat sink by passages that extend through a portion of the substrate. The heat sink also includes a shield comprising an electrically conductive material. The shield is disposed atop or within the substrate and is configured to suppress electromagnetic interference generated by an electronic component coupled to the heat sink.
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公开(公告)号：US09595888B2
公开(公告)日：2017-03-14
申请号：US13688315
申请日：2012-11-29
发明人： Fengfeng Tao , Maja Harfman Todorovic , Luis Jose Garces , Rui Zhou , Donald Gene Marabell , Robert Louis Steigerwald
IPC分类号： H02M7/48 , H02M7/538 , H02M7/5387 , H02J3/38
CPC分类号： H02M7/538 , H02J3/383 , H02M7/48 , H02M7/5387 , Y02E10/563
摘要： A power converter is provided. The power converter includes a converter leg including switches for converting power. The power converter also includes a controller for switching the switches using a pulse width modulation technique. The power converter further includes an interface inductor coupled to the converter leg for avoiding a reverse recovery of current in the switches during operation.
摘要翻译： 提供电源转换器。 功率转换器包括转换器支脚，其包括用于转换功率的开关。 功率转换器还包括用于使用脉冲宽度调制技术来切换开关的控制器。 功率转换器还包括耦合到转换器支脚的接口电感器，用于避免在操作期间开关中电流的反向恢复。
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公开(公告)号：US20160352253A1
公开(公告)日：2016-12-01
申请号：US14722251
申请日：2015-05-27
IPC分类号： H02M7/5387
CPC分类号： H02M7/53871 , H02M2001/0058 , Y02B70/1491
摘要： A power inversion system includes an input and output coupleable to a DC power and an AC load, respectively, and a power inverter including a plurality of phase legs each having two bridge legs coupled in parallel with at least two switch and antiparallel diode pairs coupled in series. The system also includes a plurality of inductors, with at least one inductor coupled between a midpoint of each bridge leg and an LCL filter, the inductors in each phase leg being magnetically coupled. The system further includes a control system to drive the power inverter in a soft switching configuration, the control system programmed to output a switching signal to the power inverter according to a duty cycle and a phase shift angle, determine a value of the duty cycle, and optimize the phase shift angle of the power inverter based on the value of the duty cycle.
摘要翻译： 功率反转系统包括分别耦合到DC电源和AC负载的输入和输出，以及功率逆变器，其包括多个相位支路，每个相位支路具有与至少两个耦合到其中的开关和反并联二极管对并联耦合的两个桥脚 系列。 该系统还包括多个电感器，其中至少一个电感器耦合在每个桥接支腿的中点和LCL滤波器之间，每个相位支路中的电感器被磁耦合。 该系统还包括控制系统，用于以软切换配置来驱动电力逆变器，所述控制系统被编程为根据占空比和相移角将切换信号输出到功率逆变器，确定占空比的值， 并根据占空比的值优化功率逆变器的相移角。
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5.发明申请公开(公告)号：US20150101653A1
公开(公告)日：2015-04-16
申请号：US14055024
申请日：2013-10-16
发明人： Philip Michael Cioffi , Maja Harfman Todorovic , Michael Scott Herzog , Charles Steven Korman , Donald M. Doherty , Neil Anthony Johnson
CPC分类号： H02S40/34 , H02S20/00 , H02S40/32 , Y02E10/50 , Y10T29/49117
摘要： A micro-inverter assembly includes a housing having an opening formed in a bottom surface thereof, and a direct current (DC)-to-alternating current (AC) micro-inverter disposed within the housing at a position adjacent to the opening. The micro-inverter assembly further includes a micro-inverter DC connector electrically coupled to the DC-to-AC micro-inverter and positioned within the opening of the housing, the micro-inverter DC connector having a plurality of exposed electrical contacts.
摘要翻译： 微逆变器组件包括：壳体，其具有形成在其底表面中的开口;以及直流（DC）至交流（AC）微逆变器，其设置在与开口相邻的位置处于壳体内。 微逆变器组件还包括电耦合到DC到AC微逆变器并且定位在壳体的开口内的微逆变器DC连接器，微逆变器DC连接器具有多个暴露的电触点。
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公开(公告)号：US10431978B2
公开(公告)日：2019-10-01
申请号：US15673520
申请日：2017-08-10
发明人： Fengfeng Tao , Ahmed Elasser , Song Chi , Maja Harfman Todorovic
摘要： A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.
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公开(公告)号：US09685904B2
公开(公告)日：2017-06-20
申请号：US14055024
申请日：2013-10-16
发明人： Philip Michael Cioffi , Maja Harfman Todorovic , Michael Scott Herzog , Charles Steven Korman , Donald M. Doherty , Neil Anthony Johnson
CPC分类号： H02S40/34 , H02S20/00 , H02S40/32 , Y02E10/50 , Y10T29/49117
摘要： A micro-inverter assembly includes a housing having an opening formed in a bottom surface thereof, and a direct current (DC)-to-alternating current (AC) micro-inverter disposed within the housing at a position adjacent to the opening. The micro-inverter assembly further includes a micro-inverter DC connector electrically coupled to the DC-to-AC micro-inverter and positioned within the opening of the housing, the micro-inverter DC connector having a plurality of exposed electrical contacts.
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公开(公告)号：US20150131328A1
公开(公告)日：2015-05-14
申请号：US14074778
申请日：2013-11-08
发明人： Fengfeng Tao , Michael Joseph Schutten , Eladio Clemente Delgado , Luis Jose Garces , Rui Zhou , Xinhui Wu , Maja Harfman Todorovic , Lei Wang
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M2001/0058 , H02M2001/0093 , Y02B70/1433 , Y02B70/1491
摘要： A power conversion system is presented. The system includes a power source coupled to a power converter and a controller. The controller is configured to determine a value of at least one parameter corresponding to the power source. Additionally, the controller is configured to provide a first portion of the at least one parameter to the power converter and modify an operating frequency of the power converter, duty ratio of the power converter, or a combination thereof. Furthermore, the controller is configured to obtain an electrical quantity at an output of the power converter based on the modified operating frequency, the modified duty ratio, or a combination thereof. Also, the controller is configured to deliver a combination of the electrical quantity obtained at the output of the power converter and a second portion of the at least one parameter to a load. Method for converting power is also presented.
摘要翻译： 介绍了电力转换系统。 该系统包括耦合到功率转换器和控制器的电源。 控制器被配置为确定与电源对应的至少一个参数的值。 此外，控制器被配置为向功率转换器提供至少一个参数的第一部分，并修改功率转换器的工作频率，功率转换器的占空比或其组合。 此外，控制器被配置为基于修改的操作频率，修改的占空比或其组合来获得功率转换器的输出处的电量。 此外，控制器被配置为将在功率转换器的输出处获得的电量和至少一个参数的第二部分的组合传递给负载。 还介绍了转换功率的方法。
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公开(公告)号：US20190343019A1
公开(公告)日：2019-11-07
申请号：US15968284
申请日：2018-05-01
发明人： Maja Harfman Todorovic , Philip Michael Cioffi , Xu She , Gary Dwayne Mandrusiak , Rajib Datta , Michael Joseph Schutten
摘要： A device for cooling an electronic component includes a substrate having a component mounting surface and a fluid flow surface recessed relative to the component mounting surface. The device also includes an inlet orifice positioned proximate a first end of the fluid flow surface and an outlet orifice positioned proximate a second end of the fluid flow surface. A pattern of surface features is arranged on the fluid flow surface. The pattern of surface features is configured to entrain a coolant flowing across the fluid flow surface and redirect the coolant upward and away from the fluid flow surface.
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公开(公告)号：US10374591B2
公开(公告)日：2019-08-06
申请号：US15397443
申请日：2017-01-03
发明人： Ramanujam Ramabhadran , Sayan Acharya , Han Peng , Maja Harfman Todorovic , Ahmed Elasser , Robert Thomas
IPC分类号： H01L29/16 , H01L29/20 , H01L29/24 , H03K17/06 , H03K17/16 , H01L29/778 , H03K17/0812
摘要： Systems and methods provided herein relate to a gate drive circuit for controlling operation of a wide bandgap semiconductor switch. The systems and methods receive a control signal and configuring an operation signal configured to activate a wide bandgap switch (WBG switch). A profile of the operation signal being based on electrical characteristics of first and second shaping circuits. The systems and methods further deliver the operation signal to the WBG switch.
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