POWER SUPPLY CIRCUIT FOR SELECTIVELY SUPPLYING POWER TO A VEHICLE A CCESSORY
    3.
    发明申请
    POWER SUPPLY CIRCUIT FOR SELECTIVELY SUPPLYING POWER TO A VEHICLE A CCESSORY 审中-公开
    用于选择性地向车辆提供电力的电源电路

    公开(公告)号:WO2007092337A3

    公开(公告)日:2008-08-07

    申请号:PCT/US2007002940

    申请日:2007-02-02

    Abstract: According to one embodiment of the present invention, a power supply circuit is provided for selectively supplying power to a vehicle accessory. The power supply circuit may be comprised of a switch coupled to a power line from the vehicle battery and to a power input of the accessory and a control circuit coupled to the switch The control circuit may monitor the battery voltage and selectively supply power from the battery to the accessory in response to the battery voltage. The control circuit may supply power from the battery to the accessory when the battery voltage changes at least a predetermined amount over a time period. The control circuit may comprise a microprocessor that adaptively learns signatures in the battery voltage occurring when the engine is running in order to provide power from the battery to the accessory as if the power were supplied from the ignition.

    Abstract translation: 根据本发明的一个实施例,提供一种用于选择性地向车辆附件供电的电源电路。 电源电路可以由耦合到来自车辆电池的电力线和配件的电源输入的开关以及耦合到开关的控制电路组成。控制电路可以监视电池电压并选择性地从电池供电 以响应于电池电压。 当电池电压在一段时间内改变至少预定量时,控制电路可以从电池向附件供电。 控制电路可以包括微处理器,其自动地学习当发动机运行时发生的电池电压中的签名,以便从电池向附件提供电力,好像从点火器供电。

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