公开(公告)号：US20180097381A1

公开(公告)日：2018-04-05

申请号：US15821793

申请日：2017-11-23

申请人： GUANG DONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： Kewei WU

IPC分类号： H02J7/00

CPC分类号： H02J7/0036 ,  H02J7/0045 ,  H02J7/0052

摘要： A detection circuit and a detection method for starting charging are provided. The detection circuit comprises a cell connector, a first controller, a second controller and a switch circuit. The first controller sends an anode contact signal, a cathode contact signal and an electric quantity signal received from the cell connector to the second controller; the second controller sends a start instruction to the first controller if a charging request signal is received, the anode of the cell is well contacted, the cathode of the cell is well contacted, and a voltage of the cell does not exceed a voltage threshold; the first controller sends a connection instruction to the switch circuit to control connection of a charging terminal and a cell terminal of the switch circuit, such that a charging adapter charges the cell through the switch circuit.

公开(公告)号：US20170264114A1

公开(公告)日：2017-09-14

申请号：US15607731

申请日：2017-05-30

申请人： GUANG DONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： Jialiang ZHANG ,  Wenqiang CHENG ,  Dashuai HUANG ,  Yuanxiang HU ,  Kewei WU

IPC分类号： H02J7/00

CPC分类号： H02J7/0029 ,  H01H2085/025 ,  H01H2085/0283 ,  H01M2/34 ,  H01M10/44 ,  H01M10/448 ,  H01M2200/00 ,  H01M2200/103 ,  H01M2220/30 ,  H02H3/087 ,  H02H3/202 ,  H02H7/18 ,  H02J7/0068 ,  H02J7/007 ,  H02J2007/0037 ,  H02J2007/0039 ,  H02J2007/004 ,  H02J2007/0095

摘要： The present disclosure provides an overvoltage and overcurrent protection circuit and a mobile terminal. The overvoltage and overcurrent protection circuit comprises a primary protection circuit and a secondary protection circuit. The primary protection circuit comprises a power end coupled to an anode of a cell, a detection end coupled to a cathode of the cell, and a low potential interface end coupled to a ground end of a charging and discharging interface. The secondary protection circuit comprises a high potential cell end, a low potential cell end, and a high potential interface end, in which the high potential cell end is externally coupled to the anode of the cell, the low potential cell end is externally coupled to the cathode of the cell, and the high potential interface end is externally coupled to a power end of the charging and discharging interface.