公开(公告)号：US20140237271A1

公开(公告)日：2014-08-21

申请号：US14184225

申请日：2014-02-19

申请人： Lenovo (Singapore) Pte.Ltd.

发明人： Yoshihiro Takase ,  Yasumichi Tsukamoto ,  Shinji Ohishi ,  Yuichiro Seto

IPC分类号： G06F1/26

CPC分类号： G06F1/263

摘要： An energization range of a laptop PC is controlled for safety component replacement. An EC can communicate with a battery unit to control a FET of the battery unit. In a power-off state, a PWC receives electricity from the battery unit or an AC/DC adapter. In the power-off state, a system of the EC stops. When a housing cover of the laptop PC is opened, a cover switch turns ON. When a logic circuit detects the operation of the cover switch, the PWC controls a DC/DC converter group to activate the system. The EC receiving electricity turns the FET OFF. Then the PWC turns the FET OFF.

摘要翻译： 控制笔记本电脑的通电范围以进行安全部件更换。 EC可以与电池单元通信以控制电池单元的FET。 在断电状态下，PWC从电池单元或AC / DC适配器接收电力。 在断电状态下，EC的系统停止。 当笔记本电脑的外壳盖打开时，盖子开关打开。 当逻辑电路检测到盖开关的操作时，PWC控制DC / DC转换器组以激活系统。 接收电的EC将关闭FET。 然后PWC关闭FET。