公开(公告)号：US07127228B2

公开(公告)日：2006-10-24

申请号：US10014260

申请日：2001-12-07

申请人： Hsin-Chin Chang ,  Chen-Huang Fan ,  Ben-Chuan Du

发明人： Hsin-Chin Chang ,  Chen-Huang Fan ,  Ben-Chuan Du

IPC分类号： H04B1/16 ,  H04B1/034 ,  H04B1/38

CPC分类号： G06F1/30

摘要： A portable electronic device with power failure recovery, powered by a main power source, the device comprising a power detection module, a processor, a timing unit and a power management unit. The power detection module detects an output characteristic from the main power source and asserts an interrupt signal if the characteristic is below a threshold value. The processor asserts a turn-off signal and an enable signal in response to the interrupt signal. The timing unit asserts a notification signal at a predetermined time interval when the enable signal is asserted. Upon receipt of the turn-off signal, the power management unit disconnects the main power source from a circuit block. Moreover, the power management unit reconnects the main power source to the circuit block when the notification signal is asserted and the output characteristic of the main power source is beyond the threshold value.

摘要翻译： 一种具有电源故障恢复的便携式电子设备，由主电源供电，该设备包括功率检测模块，处理器，定时单元和电源管理单元。 功率检测模块检测来自主电源的输出特性，并且如果特性低于阈值则断言中断信号。 处理器响应于中断信号断言关断信号和使能信号。 当使能信号被断言时，定时单元以预定的时间间隔来确定通知信号。 在接收到关闭信号时，电源管理单元断开主电源与电路块的连接。 此外，当通知信号被断言并且主电源的输出特性超过阈值时，电源管理单元将主电源重新连接到电路块。