Low power, dual output AC/DC and DC/DC converter

    公开(公告)号:US06650095B2

    公开(公告)日:2003-11-18

    申请号:US10087603

    申请日:2002-03-01

    IPC分类号: G05F1577

    摘要: The converter uses the energy stored in the output filter of a step-down (or buck) converter and in the inductor of a step up/down (or buck-boost) converter to supply a second output of opposite sign. In particular, the converter has a first input receiving an input voltage; a first output supplying a first output voltage of a first sign; a second output supplying a second output voltage of opposite sign; a controlled switch connected between the first input and a first intermediate node; an inductor connected between the first intermediate node and the first output; a diode connected between the first intermediate node and a second intermediate node; and a dual voltage generating circuit connected between the second intermediate node and the second output.

    Automatic system for synchronous enablement-disablement of solar photovoltaic panels of an energy production plant with distributed DC/DC conversion
    3.
    发明授权
    Automatic system for synchronous enablement-disablement of solar photovoltaic panels of an energy production plant with distributed DC/DC conversion 有权
    具有分布式DC / DC转换能量生产设备的太阳能光伏板的同步启用禁用自动系统

    公开(公告)号:US08890363B2

    公开(公告)日:2014-11-18

    申请号:US13240382

    申请日:2011-09-22

    IPC分类号: H02J1/00 H02J1/10 H02J3/38

    摘要: A solar energy plant may include a DC bus, photovoltaic panels coupled in parallel to the DC bus, each photovoltaic panel having a DC/DC converter, and a first controller controlling the DC/DC converter depending on whether a voltage on the DC bus is equal to or greater than a first threshold and lower than or equal to a second threshold. The solar energy plant may include a DC/AC inverter coupled to the DC bus and outputting an output AC voltage, an auxiliary start-up power supply charging a parasitic capacitance on the DC bus up to the first threshold, and a second controller turning on the auxiliary start-up power supply based upon a start command, and turning off the auxiliary start-up power supply and simultaneously turning on the DC/AC inverter.

    摘要翻译: 太阳能发电厂可以包括DC总线,并联到DC总线的光伏面板,每个光伏面板具有DC / DC转换器,以及控制DC / DC转换器的第一控制器,这取决于DC总线上的电压是否为 等于或大于第一阈值并且小于或等于第二阈值。 太阳能发电厂可以包括耦合到DC总线的DC / AC逆变器,并输出输出AC电压,辅助启动电源对直流母线上的寄生电容充电直至第一阈值,并且第二控制器接通 基于起动指令的辅助启动电源,关闭辅助起动电源,同时接通DC / AC逆变器。

    Method for detecting the null current condition in a PWM driven inductor and a relative driving circuit
    4.
    发明授权
    Method for detecting the null current condition in a PWM driven inductor and a relative driving circuit 有权
    用于检测PWM驱动电感器和相对驱动电路中的零电流状态的方法

    公开(公告)号:US06867634B2

    公开(公告)日:2005-03-15

    申请号:US10438192

    申请日:2003-05-14

    摘要: A method for detecting a null current condition in a PWM driven inductor connected between a voltage source node and a second circuit node of a line for outputting current to a load includes generating a derivative signal by time differentiating a voltage on the second node. The method further includes monitoring an instant when the derivative signal becomes negative, and signaling verification of the null current condition each time the derivative signal becomes negative.

    摘要翻译: 用于检测连接在用于向负载输出电流的线路的电压源节点和第二电路节点之间的PWM驱动电感器中的零电流状态的方法包括通过时间微分第二节点上的电压来产生导数信号。 该方法还包括监视导数信号变为负的瞬间,以及每当导数信号变为负时,对零电流状态的信令验证。

    AUTOMATIC SYSTEM FOR SYNCHRONOUS ENABLEMENT-DISABLEMENT OF SOLAR PHOTOVOLTAIC PANELS OF AN ENERGY PRODUCTION PLANT WITH DISTRIBUTED DC/DC CONVERSION
    5.
    发明申请
    AUTOMATIC SYSTEM FOR SYNCHRONOUS ENABLEMENT-DISABLEMENT OF SOLAR PHOTOVOLTAIC PANELS OF AN ENERGY PRODUCTION PLANT WITH DISTRIBUTED DC/DC CONVERSION 有权
    具有分布式DC / DC转换的能源生产厂的太阳能光伏面板同步启动自动系统

    公开(公告)号:US20120091810A1

    公开(公告)日:2012-04-19

    申请号:US13240382

    申请日:2011-09-22

    IPC分类号: H02J9/00

    摘要: A solar energy plant may include a DC bus, photovoltaic panels coupled in parallel to the DC bus, each photovoltaic panel having a DC/DC converter, and a first controller controlling the DC/DC converter depending on whether a voltage on the DC bus is equal to or greater than a first threshold and lower than or equal to a second threshold. The solar energy plant may include a DC/AC inverter coupled to the DC bus and outputting an output AC voltage, an auxiliary start-up power supply charging a parasitic capacitance on the DC bus up to the first threshold, and a second controller turning on the auxiliary start-up power supply based upon a start command, and turning off the auxiliary start-up power supply and simultaneously turning on the DC/AC inverter.

    摘要翻译: 太阳能发电厂可以包括DC总线,并联到DC总线的光伏面板,每个光伏面板具有DC / DC转换器,以及控制DC / DC转换器的第一控制器,这取决于DC总线上的电压是否为 等于或大于第一阈值并且小于或等于第二阈值。 太阳能发电厂可以包括耦合到DC总线的DC / AC逆变器,并输出输出AC电压,辅助启动电源对直流母线上的寄生电容充电直至第一阈值,并且第二控制器接通 基于起动指令的辅助启动电源,关闭辅助起动电源,同时接通DC / AC逆变器。