公开(公告)号：US09742131B2

公开(公告)日：2017-08-22

申请号：US14734964

申请日：2015-06-09

申请人： O2Micro Inc.

发明人： Guoyong Guo ,  Shiqiang Yang ,  Zhanpeng Yang

IPC分类号： G06F1/26 ,  H01R24/60

CPC分类号： H01R24/60 ,  G06F1/26 ,  G06F1/266

摘要： In a power transfer system, a first main switch can transfer power from a first connector to an output terminal. A first path can deliver a current from the first connector to the output terminal and control the current to be within a predefined ranger. A second main switch can transfer power from a second connector to the output terminal. A second path can deliver a current from the second connector to the output terminal and control the current to be within a predefined range. Control circuitry can turn off the second main switch and the second path and turn on the first path if the first power source is available at the first connector when the second power source is providing power to the output terminal. The control circuitry can turn on the first main switch when a time interval from turning on the first path has elapsed.