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公开(公告)号：US09356553B2
公开(公告)日：2016-05-31
申请号：US14073473
申请日：2013-11-06
CPC分类号： H02S50/00 , H02J1/00 , H02J3/383 , Y02E10/563 , Y10T307/696
摘要： A system and method of monitoring a photovoltaic (PV) installation includes providing a string of multiple panel interface device enabled PV panels; operatively connecting an inverter to the string; operatively connecting at least one PV panel to the string; discharging an input capacitance of the inverter; comparing a current in the string to a predetermined current threshold value; and controlling connection of the at least one PV panel to the string based on the comparing of the current in the string to the predetermined current threshold value. A panel interface device may be used to discharge the input capacitance of the inverter.
摘要翻译： 监测光伏（PV）安装的系统和方法包括提供一串多个面板接口设备使能的PV面板; 将逆变器可操作地连接到串; 将至少一个PV板可操作地连接到所述绳; 放电逆变器的输入电容; 将串中的电流与预定的电流阈值进行比较; 以及基于所述串中的电流与所述预定电流阈值的比较来控制所述至少一个PV面板与所述串的连接。 可以使用面板接口装置来对逆变器的输入电容进行放电。
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公开(公告)号：US20140265603A1
公开(公告)日：2014-09-18
申请号：US14073473
申请日：2013-11-06
CPC分类号： H02S50/00 , H02J1/00 , H02J3/383 , Y02E10/563 , Y10T307/696
摘要： A system and method of monitoring a photovoltaic (PV) installation includes providing a string of multiple panel interface device enabled PV panels; operatively connecting an inverter to the string; operatively connecting at least one PV panel to the string; discharging an input capacitance of the inverter; comparing a current in the string to a predetermined current threshold value; and controlling connection of the at least one PV panel to the string based on the comparing of the current in the string to the predetermined current threshold value. A panel interface device may be used to discharge the input capacitance of the inverter.
摘要翻译： 监测光伏（PV）安装的系统和方法包括提供一串多个面板接口设备使能的PV面板; 将逆变器可操作地连接到串; 将至少一个PV板可操作地连接到所述绳; 放电逆变器的输入电容; 将串中的电流与预定的电流阈值进行比较; 以及基于所述串中的电流与所述预定电流阈值的比较来控制所述至少一个PV面板与所述串的连接。 可以使用面板接口装置来对逆变器的输入电容进行放电。
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公开(公告)号：US20110085357A1
公开(公告)日：2011-04-14
申请号：US12968100
申请日：2010-12-14
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/33592 , Y02B70/1475
摘要： A flyback converter controller with forced primary regulation is disclosed. An example flyback converter controller includes a secondary control circuit to be coupled to a switched element coupled to a second winding of a coupled inductor of a flyback converter. The secondary control circuit is to be coupled across an output of the second winding to switch the switched element in response to a difference between an actual output value at the output of the second winding and a desired output value to force a current in a third winding of the coupled inductor that is representative of the difference between the actual output value at the output of the second winding and the desired output value. A primary control circuit is also included and is to be coupled to a primary switch coupled to a first winding of the coupled inductor. The primary control circuit is to be coupled to receive the current forced in the third winding by the secondary control circuit. The primary control circuit is coupled to switch the primary switch to regulate an output of the flyback converter coupled to the output of the second winding in response to the forced current.
摘要翻译： 公开了一种具有强制初级调节功能的反激转换器控制器。 示例性反激转换器控制器包括二次控制电路，其被耦合到耦合到反激转换器的耦合电感器的第二绕组的开关元件。 次级控制电路将被耦合在第二绕组的输出端上，以响应于在第二绕组的输出处的实际输出值与期望的输出值之间的差来切换开关元件，以迫使第三绕组中的电流 耦合电感器表示第二绕组输出端的实际输出值与期望的输出值之差。 还包括主控制电路，并且耦合到耦合到耦合电感器的第一绕组的初级开关。 主控制电路被耦合以接收由次级控制电路在第三绕组中强制的电流。 主控制电路被耦合以响应于强制电流来切换主开关以调节耦合到第二绕组的输出的反激转换器的输出。
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公开(公告)号：US06850048B2
公开(公告)日：2005-02-01
申请号：US10428095
申请日：2003-05-02
申请人： Raymond Kenneth Orr , Yan-Fei Liu , Roger Peter Colbeck , David Alan Brown , Hartley Fred Horwitz
发明人： Raymond Kenneth Orr , Yan-Fei Liu , Roger Peter Colbeck , David Alan Brown , Hartley Fred Horwitz
CPC分类号： H02M3/33569 , H02M2001/0012 , H02M2001/008
摘要： A power supply controller controls power supplies for power-up and/or shut-down in a desired sequence. An input voltage for the power supplies powers, and is monitored by, a first control unit having outputs for enabling the power supplies. A second control unit monitors output voltages of the power supplies, and an isolating signal coupler couples signals in both directions between the first and second control units. The second control unit is powered in an isolated manner from the input voltage, conveniently via a transformer constituting the signal coupler. The control units together respond to the monitored voltages for enabling the power supplies in accordance with the desired sequence, information for which can be stored in a non-volatile store. The second control unit can also include enable outputs isolated from the input voltage, and trim outputs for adjusting the monitored voltages.
摘要翻译： 电源控制器以所需的顺序控制上电和/或关闭的电源。 用于电源的输入电压由具有用于启用电源的输出的第一控制单元供电并被监控。 第二控制单元监视电源的输出电压，并且隔离信号耦合器在第一和第二控制单元之间沿两个方向耦合信号。 第二控制单元通过构成信号耦合器的变压器，与输入电压隔离的方式供电。 控制单元一起响应所监视的电压，以根据期望的顺序启用电源，其信息可以存储在非易失性存储器中。 第二控制单元还可以包括与输入电压隔离的使能输出，以及调整输出以调整所监视的电压。
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5.发明授权Method and apparatus for implementing a power converter input terminal voltage discharge circuit 有权用于实现功率转换器输入端子电压放电电路的方法和装置公开(公告)号：US08624562B2
公开(公告)日：2014-01-07
申请号：US13345257
申请日：2012-01-06
IPC分类号： H02J7/00
CPC分类号： H02M1/32 , H02M1/12 , H02M1/126 , H02M1/36 , H02M2001/322
摘要： A switch is coupled to a control circuit and to an input of a power converter. The control circuit is coupled to drive the switch in a first operating mode to transfer energy from the input to an output of the power converter when an electrical energy source is coupled to the input of the power converter. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input. A capacitance is coupled between input terminals of the input of the power converter and is discharged to a threshold voltage in less than a maximum period of time from when the electrical energy source is uncoupled from the input terminals. The control circuit is coupled to drive the switch to have a high average impedance in the first operating mode.
摘要翻译： 开关耦合到控制电路和功率转换器的输入端。 当电能源耦合到功率转换器的输入端时，控制电路被耦合以在第一操作模式下驱动开关以将能量从输入传递到功率转换器的输出端。 当电能源与输入端分离时，控制电路被耦合以在第二操作模式下驱动开关。 电容耦合在功率转换器的输入端的输入端之间，并且在电能从输入端分离之后的最小时间内被放电到阈值电压。 控制电路被耦合以驱动开关以在第一操作模式中具有高平均阻抗。
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6.发明授权Method and apparatus for implementing a power converter input terminal voltage discharge circuit 有权用于实现功率转换器输入端子电压放电电路的方法和装置公开(公告)号：US08115457B2
公开(公告)日：2012-02-14
申请号：US12533977
申请日：2009-07-31
IPC分类号： H02J7/00
CPC分类号： H02M1/32 , H02M1/12 , H02M1/126 , H02M1/36 , H02M2001/322
摘要： A circuit to discharge a capacitance between input terminals of a power system is disclosed. An example circuit includes a control circuit coupled to an input of a power system. The control circuit is coupled to detect whether an electrical energy source is coupled to an input of the power system. A switch is also included and is coupled to the control circuit and to the input of the power system. The control circuit is coupled to drive the switch in a first operating mode when the electrical energy source is coupled to the input of the power system. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input of the power system. A capacitance coupled between input terminals of the input of the power system is discharged through the switch to a threshold voltage in less than a maximum period of time from when the electrical power source is uncoupled from the input terminals of the power system.
摘要翻译： 公开了一种用于在电力系统的输入端子之间放电的电路。 示例电路包括耦合到电力系统的输入的控制电路。 控制电路被耦合以检测电能源是否耦合到电力系统的输入端。 还包括开关并且耦合到控制电路和电力系统的输入。 当电能源耦合到电力系统的输入端时，控制电路被耦合以在第一操作模式下驱动开关。 当电能源与电力系统的输入分离时，控制电路被耦合以在第二操作模式下驱动开关。 耦合在电力系统的输入端的输入端之间的电容通过开关从小于电力从电力系统的输入端分离的最大时间段内被释放到阈值电压。
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公开(公告)号：US20110267849A1
公开(公告)日：2011-11-03
申请号：US13182378
申请日：2011-07-13
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/33592 , Y02B70/1475
摘要： A controller that forces primary regulation is disclosed. An example controller includes a switched element to be coupled to a second winding of an energy transfer element of a power supply. A secondary control circuit is coupled to the switched element. The secondary control circuit is to be coupled across an output of the second winding to switch the switched element in response to a difference between an actual output value at the output of the second winding and a desired output value to force a current in a third winding of the energy transfer element that is representative of the difference between the actual output value at the output of the second winding and the desired output value. A primary switch is to be coupled to a first winding of the energy transfer element. A primary control circuit is coupled to the primary switch. The primary control circuit is to be coupled to receive the current forced in the third winding of the energy transfer element in response to the secondary control circuit. The primary control circuit is coupled to switch the primary switch to regulate an output of the power supply coupled to the output of the second winding in response to the forced current.
摘要翻译： 公开了强制初级调节的控制器。 示例性控制器包括要耦合到电源的能量传递元件的第二绕组的开关元件。 二次控制电路耦合到开关元件。 次级控制电路将被耦合在第二绕组的输出端上，以响应于在第二绕组的输出处的实际输出值与期望的输出值之间的差来切换开关元件，以迫使第三绕组中的电流 的能量传递元件，其表示第二绕组的输出端的实际输出值与期望的输出值之间的差。 初级开关将耦合到能量传递元件的第一绕组。 主控制电路耦合到主开关。 主控制电路将被耦合以响应于次级控制电路接收强制在能量传递元件的第三绕组中的电流。 主控制电路被耦合以切换主开关以响应于强制电流来调节耦合到第二绕组的输出的电源的输出。
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公开(公告)号：US08035939B2
公开(公告)日：2011-10-11
申请号：US11296458
申请日：2005-12-08
CPC分类号： H02M1/36 , H02M2001/008
摘要： A plurality of DC power supply modules have track pins interconnected for tracking of output voltages of the modules during power-up and normal power-down. Each module pulls down its track pin voltage in response to any fault, and detects a track pin voltage below a threshold to detect a fault communicated from any other module, to facilitate fault power-down. The track pin voltage is initially raised above the threshold for power-up. One module can be designated a master for monitoring an input voltage to the modules and for determining the track pin voltage for normal power-up and power-down.
摘要翻译： 多个DC电源模块具有互连的跟踪引脚，用于在上电和正常掉电期间跟踪模块的输出电压。 每个模块响应于任何故障拉低其引脚电压，并且检测到引脚电压低于阈值以检测从任何其他模块通信的故障，以便于故障断电。 跟踪引脚电压最初升高到高于阈值以上的上电。 一个模块可以被指定为用于监视模块的输入电压的主站，以及用于确定正常上电和断电的跟踪引脚电压。
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公开(公告)号：US07885085B2
公开(公告)日：2011-02-08
申请号：US12016945
申请日：2008-01-18
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M1/4225 , H02M2001/0058 , H02M2001/007 , Y02B70/126 , Y02B70/1433 , Y02B70/1491
摘要： A control unit controls cascaded PFC and LLC converters, the LLC converter having an input coupled to an output, of the PFC converter and providing an output voltage that decreases with increasing switching frequency. The control unit produces a sawtooth waveform with a linear ramp for controlling the LLC converter switching frequency, and hence its output voltage, in dependence upon a feedback signal. It also produces for the PFC converter a PWM signal with a frequency that is the same as or an integer fraction of the LLC converter switching frequency, by comparing two thresholds with the linear ramp in respective different cycles of the sawtooth waveform to turn on and off a switch of the PFC converter during these different cycles. Logic circuits prevent PFC converter switch transitions from occurring simultaneously with switching transitions of the LLC converter.
摘要翻译： 控制单元控制级联PFC和LLC转换器，LLC转换器具有耦合到PFC转换器的输出的输入，并提供随开关频率增加而减小的输出电压。 控制单元产生具有线性斜坡的锯齿波形，用于根据反馈信号控制LLC变换器的开关频率，并因此控制其输出电压。 它还通过将两个阈值与锯齿波形的各个不同周期中的线性斜坡进行比较，以使PFC变换器产生频率与LLC转换器开关频率相同或整数分贝的PWM信号，以打开和关闭 PFC转换器在这些不同周期的开关。 逻辑电路防止PFC转换器开关转换与LLC转换器的开关转换同时发生。
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公开(公告)号：US07876583B2
公开(公告)日：2011-01-25
申请号：US12341353
申请日：2008-12-22
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/33592 , Y02B70/1475
摘要： A flyback converter with forced primary regulation is disclosed. An example flyback converter includes a coupled inductor including a first winding, a second winding, and a third winding. The first winding is coupled to an input voltage and the second winding is coupled to an output of the power converter. A switched element is coupled to the second winding. A secondary control circuit is coupled to the switched element and the second winding. The secondary control circuit is coupled to switch the switched element in response to a difference between a desired output value and an actual output value to force a current in the third winding that is representative of the difference between the desired output value and the actual output value. A primary switch is coupled to the first winding. A primary control circuit is coupled to the primary switch and the third winding. The primary control circuit is coupled to switch the primary switch to regulate the output of the power converter in response to the forced current.
摘要翻译： 公开了一种具有强制初级调节的反激式转换器。 示例性反激转换器包括耦合电感器，其包括第一绕组，第二绕组和第三绕组。 第一绕组耦合到输入电压，并且第二绕组耦合到功率转换器的输出端。 开关元件耦合到第二绕组。 次级控制电路耦合到开关元件和第二绕组。 二次控制电路被耦合以响应于期望输出值和实际输出值之间的差来切换开关元件，以迫使第三绕组中的电流表示期望输出值与实际输出值之间的差 。 初级开关耦合到第一绕组。 主控制电路耦合到初级开关和第三绕组。 主控制电路被耦合以切换主开关以响应于强制电流来调节功率转换器的输出。
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