公开(公告)号：US11146062B2

公开(公告)日：2021-10-12

申请号：US14249465

申请日：2014-04-10

申请人： Enphase Energy, Inc.

发明人： Michael Harrison ,  Erik Weyker ,  Martin Fornage

IPC分类号： H02J1/00 ,  H02J3/00 ,  H02J7/00 ,  H02J3/38

摘要： A method and apparatus for voltage clamping including: measuring a DC voltage across the PV module at an input of a power converter, comparing the measured DC voltage to the overvoltage threshold, determining the measured DC voltage exceeds the overvoltage threshold, and operating a clamping circuit to clamp at least a portion of the DC voltage prior to input to the power converter.

公开(公告)号：US10367408B2

公开(公告)日：2019-07-30

申请号：US14445680

申请日：2014-07-29

申请人： Enphase Energy, Inc.

发明人： Michael Harrison

IPC分类号： H02M1/15 ,  H02M1/12 ,  H03H7/42

摘要： An embodiment of the present invention is directed to an integrated electromagnetic compatibility (EMC) filter and power line communication (PLC) interface. The EMC filter and PLC interface comprises a first filter winding and a second filter winding configured as a common mode choke; and a two-part winding on the common mode choke, wherein the two-part winding comprises (i) a first winding coupled proximate the first filter winding and (ii) a second winding coupled proximate the second filter winding, wherein the first winding and the second winding have an equal number of turns, and wherein phasing of the first winding is reversed with respect to the second winding.

公开(公告)号：US09780645B2

公开(公告)日：2017-10-03

申请号：US14313255

申请日：2014-06-24

申请人： Enphase Energy, Inc.

发明人： Martin Fornage ,  Michael Harrison

IPC分类号： H02M1/42 ,  H02M7/48 ,  H02M3/335 ,  H02M1/24 ,  H02M1/12 ,  H02M1/14 ,  H02M3/28 ,  H02M1/00

CPC分类号： H02M1/42 ,  H02M1/12 ,  H02M1/14 ,  H02M1/24 ,  H02M3/285 ,  H02M3/335 ,  H02M3/3353 ,  H02M7/4807 ,  H02M2001/007 ,  Y02B70/12

摘要： A method and apparatus for converting DC input power to DC output power with reactive power control. The apparatus includes a plurality of flyback circuits, coupled in parallel, and a DC-AC inversion circuit coupled across an output of each flyback circuit of the plurality of flyback circuits. The apparatus also including a reactive power control circuit coupled to an output of one flyback circuit of the plurality of flyback circuits, and across an output of the DC-AC inversion circuit; and a controller operative to coordinate timing of switches in each flyback circuit of the plurality of flyback circuits and the reactive power control circuit to generate AC output power of a desired power factor.

公开(公告)号：US20150168473A1

公开(公告)日：2015-06-18

申请号：US14132830

申请日：2013-12-18

申请人： Enphase Energy, Inc.

发明人： Martin Fornage ,  Michael Harrison

IPC分类号： G01R31/02 ,  G01R15/00 ,  G01R31/40

CPC分类号： G01R31/025 ,  G01R27/18 ,  H02S50/00

摘要： Method and apparatus for determining a ground fault impedance. In one embodiment the apparatus comprises a voltage divider and a ground fault detection module for (i) determining a first voltage based on at least one voltage measurement of the voltage divider while the voltage divider is coupled between the first AC line and the DC line; (ii) determining a second voltage based on at least one voltage measurement of the voltage divider while the voltage divider is coupled between the second AC line and the DC line; (iii) determining a differential voltage based on at least one voltage measurement between the first AC line and the second AC line; and (iv) computing the ground fault impedance based on the first voltage, the second voltage, and the differential voltage.

摘要翻译： 用于确定接地故障阻抗的方法和装置。 在一个实施例中，该装置包括分压器和接地故障检测模块，用于（i）当分压器耦合在第一AC线路和DC线路之间时，基于分压器的至少一个电压测量值确定第一电压; （ii）当所述分压器耦合在所述第二AC线路和所述DC线路之间时，基于所述分压器的至少一个电压测量值确定第二电压; （iii）基于所述第一AC线和所述第二AC线之间的至少一个电压测量来确定差分电压; 和（iv）基于第一电压，第二电压和差分电压来计算接地故障阻抗。

公开(公告)号：US20150029766A1

公开(公告)日：2015-01-29

申请号：US14445680

申请日：2014-07-29

申请人： Enphase Energy, Inc.

发明人： Michael Harrison

IPC分类号： H02M1/12 ,  H02M7/44 ,  H03H7/01

CPC分类号： H02M1/126 ,  H02M1/15 ,  H02M2001/123 ,  H03H7/427

摘要： An embodiment of the present invention is directed to an integrated electromagnetic compatibility (EMC) filter and power line communication (PLC) interface. The EMC filter and PLC interface comprises a first filter winding and a second filter winding configured as a common mode choke; and a two-part winding on the common mode choke, wherein the two-part winding comprises (i) a first winding coupled proximate the first filter winding and (ii) a second winding coupled proximate the second filter winding, wherein the first winding and the second winding have an equal number of turns, and wherein phasing of the first winding is reversed with respect to the second winding.

摘要翻译： 本发明的一个实施例涉及集成电磁兼容（EMC）滤波器和电力线通信（PLC）接口。 EMC滤波器和PLC接口包括被配置为共模扼流圈的第一滤波器绕组和第二滤波绕组; 以及在共模扼流圈上的两部分绕组，其中所述两部分绕组包括（i）靠近所述第一滤波器绕组耦合的第一绕组和（ii）接近所述第二滤波器绕组的第二绕组，其中所述第一绕组和 第二绕组具有相等的匝数，并且其中第一绕组的相位相对于第二绕组反转。

公开(公告)号：US09793854B2

公开(公告)日：2017-10-17

申请号：US14870178

申请日：2015-09-30

申请人： Enphase Energy, Inc.

发明人： Martin Fornage ,  Michael Harrison

IPC分类号： H02S50/10 ,  G01R27/18 ,  H02S50/00 ,  G01R15/04 ,  G01R15/06

CPC分类号： H02S50/10 ,  G01R15/04 ,  G01R15/06 ,  G01R27/18 ,  H02S50/00

摘要： Method and apparatus for determining a ground fault impedance. In one embodiment the apparatus comprises a voltage divider and a ground fault detection module for (i) determining a first voltage based on at least one voltage measurement of the voltage divider while the voltage divider is coupled between the first AC line and the DC line; (ii) determining a second voltage based on at least one voltage measurement of the voltage divider while the voltage divider is coupled between the second AC line and the DC line; (iii) determining a differential voltage based on at least one voltage measurement between the first AC line and the second AC line; and (iv) computing the ground fault impedance based on the first voltage, the second voltage, and the differential voltage.

公开(公告)号：US09247595B2

公开(公告)日：2016-01-26

申请号：US14291550

申请日：2014-05-30

申请人： Enphase Energy, Inc.

发明人： Martin Fornage ,  Michael Harrison

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0821 ,  Y02B20/348

摘要： A method and apparatus for light emitting diode (LED) lighting power conversion including a full bridge rectifier circuit coupled to a first half-bridge rectifier circuit and a resonant tank circuit supplying AC power to a LED circuit and forming a first port to the LED circuit. The apparatus further includes a second half-bridge rectifier circuit and energy storage device receiving and supplying DC power to the LED circuit as determined by a controller to form a second port of the LED circuit, wherein the LED circuit further comprises a rectifier circuit for the LED circuit, and at least one LED.

摘要翻译： 一种用于发光二极管（LED）照明功率转换的方法和装置，包括耦合到第一半桥整流器电路的全桥整流器电路和向LED电路提供AC电力并且向LED电路形成第一端口的谐振回路电路 。 该装置还包括第二半桥整流器电路和能量存储装置，其由控制器接收并向LED电路提供直流电力，以形成LED电路的第二端口，其中该LED电路还包括用于 LED电路和至少一个LED。

公开(公告)号：US20140313004A1

公开(公告)日：2014-10-23

申请号：US14259761

申请日：2014-04-23

申请人： Enphase Energy, Inc.

发明人： Michael Harrison

IPC分类号： H01F27/24

CPC分类号： H01F3/10 ,  H01F3/12 ,  H01F27/2828 ,  H01F27/306

摘要： A magnetic component and transformer made therefrom is provided. The magnetic component includes an outer circular wall including a first gap and a second gap; an inner circular wall including a third gap and a fourth gap; and a cylindrical core. The outer circular wall, the inner circular wall, and the cylindrical core are concentric to one another. The outer circular wall and the inner circular wall are spaced apart to define an outer radial channel. The inner circular wall and the cylindrical core are spaced apart to define an inner radial channel. A transformer is formed by wrapping a first winding about the inner circular wall and a second winding around the cylindrical core.

摘要翻译： 提供由其制成的磁性部件和变压器。 磁性部件包括包括第一间隙和第二间隙的外圆壁; 包括第三间隙和第四间隙的内圆壁; 和圆柱形芯。 外部圆形壁，内部圆形壁和圆柱形芯彼此同心。 外部圆形壁和内部圆形壁间隔开以限定外部径向通道。 内圆形壁和圆柱形芯间隔开以限定内部径向通道。 变压器通过围绕内部圆形壁缠绕第一绕组和围绕圆柱形芯的第二绕组而形成。

公开(公告)号：US09871459B2

公开(公告)日：2018-01-16

申请号：US14278372

申请日：2014-05-15

申请人： Enphase Energy, Inc.

发明人： Michael Harrison

IPC分类号： H02M3/337 ,  H02S50/00 ,  H02M1/00

CPC分类号： H02M3/3376 ,  H02M2001/0009 ,  H02M2001/0058 ,  H02S50/00 ,  Y02B70/1433 ,  Y02B70/1491

摘要： An apparatus, method, and system for measuring current within a converter. The converter including a resonant tank circuit with a capacitor, the resonant tank circuit is coupled to a DC input bridge and a first terminal of the capacitor is coupled to a ground of the DC input bridge. In addition, a voltage monitor coupled across the capacitor for measuring a voltage across the capacitor. The converter also includes a resonant current calculation module for computing a tank current value based on the voltage.

公开(公告)号：US09112522B2

公开(公告)日：2015-08-18

申请号：US14319154

申请日：2014-06-30

申请人： Enphase Energy, Inc.

发明人： Michael Harrison

IPC分类号： H03M3/00 ,  H03M3/02

CPC分类号： H03M3/02 ,  H03M3/40

摘要： Embodiments of the present invention are directed to an analog to digital converter, comprising a comparator for comparing an analog input signal and an analog feedback signal output from a digital to analog converter to generate a digital direct output signal, a summer, coupled to the comparator, for summing the digital output signal with a digital feedback signal to generate a summed signal, a first integrator, coupled to the summer, for integrating the summed signal to generate a direct output signal and a second integrator, coupled to the first integrator and to the summer, for integrating the direct output signal to generate the digital feedback signal as a quadrature output signal.

摘要翻译： 本发明的实施例涉及一种模数转换器，包括比较器，用于比较模拟输入信号和从数模转换器输出的模拟反馈信号，以产生耦合到比较器的数字直接输出信号，加法器 用于将数字输出信号与数字反馈信号相加以产生加法信号，耦合到加法器的第一积分器，用于积分加和信号以产生直接输出信号和第二积分器，耦合到第一积分器，并耦合到第一积分器， 用于积分直接输出信号以产生数字反馈信号作为正交输出信号。