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    • 1. 发明申请
    • POWER MANAGEMENT CIRCUITRY FOR ELECTRONIC DOOR LOCKS
    • 电子门锁电源管理电路
    • US20120025948A1
    • 2012-02-02
    • US13263243
    • 2009-04-06
    • Vijaya R. LakamrajuJohn M. Milton-BenoitUlf J. JonssonJoseph Zacchio
    • Vijaya R. LakamrajuJohn M. Milton-BenoitUlf J. JonssonJoseph Zacchio
    • G06K19/00
    • G07C9/00182E05B47/00E05B2047/0068G07C2009/00642
    • A power management circuit decreases power consumption in an electronic door lock. The power management circuit includes an ON/OFF circuit, a load switch circuit and a electronic door lock circuit. The ON/OFF circuit generates an initial enable signal in response to a detected keycard that places the load switch circuit in an enabled state. When enabled, the load switch circuit provides dc power to the electronic door lock circuit that allows the electronic door lock circuit to receive identification input from the detected keycard and determine whether an output should be generated to actuate the door lock mechanism. Having completed the keycard detection operation, the electronic door lock circuit generates a self turn-off signal that is provided as feedback to the ON/OFF circuit to disable the load switch circuit. When disabled, the load switch circuit prevents any power from being provided to the electronic door lock circuit and thereby conserves energy otherwise consumed by the electronic door lock in times between activations.
    • 电源管理电路降低了电子门锁的功耗。 电源管理电路包括ON / OFF电路,负载开关电路和电子门锁电路。 ON / OFF电路响应于将负载开关电路置于使能状态的检测到的钥匙卡产生初始使能信号。 当使能时,负载开关电路向电子门锁电路提供直流电力,允许电子门锁电路从检测到的钥匙卡接收识别输入,并确定是否应产生输出以致动门锁机构。 在完成了钥匙卡检测操作之后,电子门锁电路产生一个自动关断信号,该信号作为反馈给ON / OFF电路而被禁止负载开关电路。 当禁用时,负载开关电路防止向电子门锁电路提供任何电力,从而在激活之前节省由电子门锁消耗的能量。