公开(公告)号：US20120081934A1

公开(公告)日：2012-04-05

申请号：US13297247

申请日：2011-11-15

申请人： Paul Garrity ,  Asim Mumtaz

发明人： Paul Garrity ,  Asim Mumtaz

IPC分类号： H02M5/458

CPC分类号： H02J3/385 ,  H02J3/383 ,  H02M3/285 ,  H02M5/458 ,  H02M7/46 ,  H02M7/4807 ,  Y02E10/563 ,  Y10T307/511

摘要： We describe a photovoltaic (PV) panel system comprising a PV panel with multiple sub-strings of connected solar cells in combination with a power conditioning unit (microinverter). The power conditioning unit comprises a set of input power converters, one connected to each sub-string, and a common output power conversion stage, to provide power to an ac mains power supply output. Integration of the micro-inverter into the solar PV module in this way provides many advantages, including greater efficiency and reliability. Additionally, embodiments of the invention avoid the need for bypass diodes, a component with a high failure rate in PV panels, providing lower power loss and higher reliability.

摘要翻译： 我们描述了一种光伏（PV）面板系统，其包括具有连接的太阳能电池的多个子串的光伏面板和功率调节单元（微转换器）的组合。 功率调节单元包括一组输入功率转换器，一个连接到每个子串，以及公共输出功率转换级，以向交流主电源输出提供电力。 以这种方式将微逆变器集成到太阳能光伏组件中提供了许多优点，包括更高的效率和可靠性。 此外，本发明的实施例避免了需要旁路二极管，在PV面板中具有高故障率的部件，提供较低的功率损耗和更高的可靠性。

公开(公告)号：US20120081204A1

公开(公告)日：2012-04-05

申请号：US13297253

申请日：2011-11-15

申请人： Paul Garrity ,  Arturo Silva

发明人： Paul Garrity ,  Arturo Silva

IPC分类号： H01F27/24 ,  H01F27/28

CPC分类号： H01F27/325 ,  H01F27/24 ,  H01F27/2847 ,  H01F27/2866 ,  H01F27/30 ,  H01F27/306 ,  H01F27/38 ,  H01F41/06 ,  H01F41/061 ,  H01F2005/025 ,  H02M5/458 ,  Y10T29/49071

摘要： The invention relates to a transformer construction comprising a plurality of transformer cores configured to share magnetic flux paths and, as a result, at least one of the cores comprises a post and an associated sidewall having an effective cross-sectional area which is less than that of the post. Such a construction may be employed in a power conditioning unit, for example, for a photovoltaic module, which is configured to operate the cores out of phase from each other. Also described is a transformer winding comprising a longitudinal spine having a first turn emanating from a first portion of the spine in a first transverse direction and a second turn emanating from a second portion of the spine in a second transverse direction, wherein the second transverse direction is opposite to the first transverse direction.

摘要翻译： 本发明涉及一种变压器结构，其包括被配置为共享磁通路径的多个变压器芯，并且因此，至少一个芯包括柱和相关联的侧壁，该侧壁的有效横截面积小于 的帖子。 这种结构可以用在功率调节单元中，例如用于光伏模块，其被配置为相互操作核心。 还描述了一种变压器绕组，其包括纵向脊柱，其具有在第一横向方向上从脊柱的第一部分发出的第一匝和在第二横向方向从脊柱的第二部分发出的第二匝，其中第二横向 与第一横向相反。

公开(公告)号：US20110149607A1

公开(公告)日：2011-06-23

申请号：US12642448

申请日：2009-12-18

申请人： Aaron Jungreis ,  Antony Brinlee ,  Paul Garrity

发明人： Aaron Jungreis ,  Antony Brinlee ,  Paul Garrity

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  H02M2001/0032 ,  Y02B70/1433 ,  Y02B70/16

摘要： A power converter employing a controller configured to increase a dead time between conduction periods of first and second power switches therein and method of operating the same. In one embodiment, the power converter includes first and second power switches coupled to an input thereof, and a sensor configured to provide a sensed signal representative of at least one of a current level and a power level of the power converter. The power converter also includes a controller configured to increase a dead time between conduction periods of the first and second power switches when the sensed signal indicates a decrease of at least one of the current level and the power level of the power converter.

摘要翻译： 一种使用控制器的功率转换器，其配置为增加其中的第一和第二功率开关的导通周期之间的死区时间以及其操作方法。 在一个实施例中，功率转换器包括耦合到其输入的第一和第二功率开关，以及被配置为提供代表功率转换器的电流电平和功率电平中的至少一个的感测信号的传感器。 功率转换器还包括控制器，其被配置为当感测信号指示功率转换器的电流电平和功率电平中的至少一个的减小时，增加第一和第二功率开关的导通周期之间的死区时间。

公开(公告)号：US20100321964A1

公开(公告)日：2010-12-23

申请号：US12486493

申请日：2009-06-17

申请人： Antony Brinlee ,  Aaron Jungreis ,  Paul Garrity

发明人： Antony Brinlee ,  Aaron Jungreis ,  Paul Garrity

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16 ,  Y10T307/944

摘要： A power adapter including a power reducer for no-load or light load applications and method of operating the same. In one embodiment, the power adapter includes a capacitor coupled to an input of the power adapter, and a bleeder switch coupled in parallel with the capacitor. The power adapter also includes a detection circuit configured to sense an ac mains voltage at the input of the power adapter and turn on the bleeder switch upon detection of a loss of the ac mains voltage. In addition to or in lieu of, the power adapter may include a power converter, and a disconnect switch configured to disconnect the ac mains voltage from the power converter in response to a signal from a load.

摘要翻译： 包括用于空载或轻负载应用的功率减速器的电源适配器及其操作方法。 在一个实施例中，电源适配器包括耦合到电源适配器的输入端的电容器和与电容器并联耦合的放电开关。 电源适配器还包括检测电路，其被配置为检测电源适配器的输入端的交流电源电压，并且在检测到交流电源电压的损失时接通泄放开关。 电力适配器除了或代替以外，还可以包括电力转换器和断开开关，其被配置为响应于来自负载的信号而断开交流电源电压与功率转换器的连接。

公开(公告)号：US20100321958A1

公开(公告)日：2010-12-23

申请号：US12486520

申请日：2009-06-17

申请人： Antony Brinlee ,  Aaron Jungreis ,  Arturo Silva ,  Paul Garrity

发明人： Antony Brinlee ,  Aaron Jungreis ,  Arturo Silva ,  Paul Garrity

IPC分类号： H02M3/335

CPC分类号： H02M3/28 ,  H01F3/14

摘要： A power converter including a power switch, a controller for controlling a switching frequency thereof, and a magnetic device with a non-uniform gap. In one embodiment, the power converter includes a power switch and a magnetic device coupled to the power switch and having a non-uniform gap. The power converter also includes a controller having a detector configured to sense a condition representing an output power of the power converter. A control circuit of the controller is configured to control a switching frequency of the power switch as a function of the condition and control a duty cycle of the power switch to regulate an output characteristic of the power converter.

摘要翻译： 一种功率转换器，包括电源开关，用于控制其开关频率的控制器和具有不均匀间隙的磁性装置。 在一个实施例中，功率转换器包括电源开关和耦合到电源开关并具有非均匀间隙的磁性装置。 功率转换器还包括具有检测器的控制器，其被配置为感测表示功率转换器的输出功率的状态。 控制器的控制电路被配置为根据条件控制电源开关的开关频率，并且控制电源开关的占空比以调节功率转换器的输出特性。