AC power backfeed protection based on phase shift
    1.
    发明授权
    AC power backfeed protection based on phase shift 有权
    基于相移的交流电源反馈保护

    公开(公告)号:US07282813B2

    公开(公告)日:2007-10-16

    申请号:US11008264

    申请日:2004-12-10

    IPC分类号: H02H7/00

    摘要: A system having input terminals including line and neutral terminals for receiving AC power from a first AC source and having output terminals including output line and neutral terminals for receiving AC power from output terminals of a second AC source and for supplying AC power to a load, has a transfer switch configurable to connect the input terminals to the output terminals or to isolate the input terminals from the output terminals. When the transfer switch is configured to isolate the output terminals from the input terminals, the second AC source is caused to cease supplying power to the output terminals when after phase shifting the voltage produced by the second source the voltage at the input terminals is in-phase with that voltage.

    摘要翻译: 一种具有输入端子的输入端子,包括用于从第一AC源接收AC电力的线路和中性端子,并且具有包括输出线和中性端子的输出端子,用于从第二AC源的输出端子接收AC电力并且用于向负载提供AC电力, 具有可配置为将输入端子连接到输出端子或将输入端子与输出端子隔离的转换开关。 当转换开关被配置为将输出端子与输入端子隔离时,使得第二AC电源在对由第二源极产生的电压进行相移之后停止向输出端子供电, 与该电压相位。

    Duty cycle controller for high power factor battery charger
    2.
    发明授权
    Duty cycle controller for high power factor battery charger 有权
    高功率因数电池充电器的占空比控制器

    公开(公告)号:US07560902B2

    公开(公告)日:2009-07-14

    申请号:US11008266

    申请日:2004-12-10

    IPC分类号: H02J7/04

    摘要: A duty cycle controller apparatus for producing a duty cycle signal for controlling switching of switches of a battery charger having an AC input for receiving power and an output for supplying power to charge a battery in response to switching of the switches, while maintaining a high power factor at the AC input. The duty cycle controller apparatus includes a current command signal generator having a plurality of signal inputs for receiving a plurality of signals representing a plurality of operating conditions of the charger, a plurality of current command outputs and a processor operably configured to generate a plurality of current command signals at the current command outputs in response to respective sets of operating conditions.

    摘要翻译: 一种占空比控制装置,用于产生用于控制具有用于接收电力的AC输入的电池充电器的开关的切换的占空比信号,以及响应于开关的切换而向电池充电以供电的输出,同时保持高功率 AC输入的因子。 占空比控制器装置包括具有多个信号输入的电流指令信号发生器,用于接收表示充电器的多个操作状态的多个信号,多个电流指令输出和可操作地配置成产生多个电流的处理器 响应于各组操作条件,以电流指令输出的命令信号。

    DC/AC power converter
    3.
    发明授权
    DC/AC power converter 失效
    DC / AC电源转换器

    公开(公告)号:US6021052A

    公开(公告)日:2000-02-01

    申请号:US934994

    申请日:1997-09-22

    摘要: A DC link power converter apparatus including a first DC to DC converter, a DC to AC converter and a load balancing storage element. The first DC to DC converter has first and second DC ports and the DC to AC converter has a third DC port and has an AC port. The first DC port is connectable to a DC source and the second DC port is connected to the third DC port. The AC port is connectable to an AC load. The load balancing energy storage element is connected to the second DC port for decoupling the DC to DC converter from the DC to AC converter by supplying energy to the third DC port when a voltage at the second DC port is tending to decrease and for storing energy received from the second DC port when a voltage at the third port is tending to increase.

    摘要翻译: 一种DC链路功率转换装置,包括第一DC-DC转换器,DC-AC转换器和负载平衡存储元件。 第一个DC-DC转换器具有第一和第二直流端口,直流到交流转换器具有第三个直流端口并具有交流端口。 第一个直流端口可连接到直流电源,第二个直流端口连接到第三个直流端口。 AC端口可连接到交流负载。 负载平衡能量存储元件连接到第二DC端口,用于通过在第二DC端口处的电压趋于降低并且用于存储能量时向DC至AC转换器提供能量以将DC至DC转换器去耦 当第三端口的电压趋于增加时从第二DC端口接收。