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1. 发明申请

US20090267418A1 SWITCH POWER SUPPLY AND ELECTRONIC DEVICE HAVING SAME 审中-公开
标题翻译：切换电源和具有相同功能的电子设备
公开(公告)号：US20090267418A1
公开(公告)日：2009-10-29
申请号：US12429565
申请日：2009-04-24
申请人： Lan-Shiung Lin , Yu-Cheng Shen , Chuan-Chang Chou
发明人： Lan-Shiung Lin , Yu-Cheng Shen , Chuan-Chang Chou
IPC分类号： H02J9/00
CPC分类号： H02J7/0068 , Y10T307/625
摘要： A switch power supply includes an AC/DC converter, a DC/DC converter, a battery charge-discharge switching circuit, and a detecting and controlling circuit. The AC/DC converter receives an input AC voltage and converts the input AC voltage into a DC voltage. The DC/DC converter converts the DC voltage into several working voltages required for operating the electronic device. The battery charge-discharge switching circuit is selectively connected to the AC/DC converter or the DC/DC converter and connected to the battery. The detecting and controlling circuit detects the input AC voltage. If the input AC voltage is abnormal, the detecting and controlling circuit issues a control signal to the battery charge-discharge switching circuit. In response to the control signal, the battery issues a discharge voltage to the DC/DC converter and the discharge voltage is converted into the working voltages by the DC/DC converter.
摘要翻译：开关电源包括AC / DC转换器，DC / DC转换器，电池充放电开关电路和检测和控制电路。 AC / DC转换器接收输入交流电压，并将输入的交流电压转换为直流电压。 DC / DC转换器将DC电压转换成操作电子设备所需的几个工作电压。电池充放电开关电路选择性地连接到AC / DC转换器或DC / DC转换器并连接到电池。检测和控制电路检测输入的交流电压。如果输入交流电压异常，检测和控制电路向电池充放电开关电路发出控制信号。响应于控制信号，电池向DC / DC转换器发出放电电压，并且通过DC / DC转换器将放电电压转换为工作电压。

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