发明名称 Protection circuit for battery pack
摘要 A protection circuit of a battery pack capable of detecting the error of a charging device from the battery pack. The protection circuit of the battery pack having a battery cell charged by a charging device, the protection circuit including a charge switch coupled to a high current path (HCP), the charge switch disposed between the battery cell and the charging device charging the battery cell and a controller sensing a voltage or a current of the charging device during a charge stop period stopping a charging of the battery cell and determining whether an error of the charging device occurs according to the voltage or the current of the charging device.
申请公布号 US8854007(B2) 申请公布日期 2014.10.07
申请号 US201012960395 申请日期 2010.12.03
申请人 Samsung SDI Co., Ltd. 发明人 Kim Jin-Wan;Segawa Susumu;Hwang Eui-Jeong;Sim Se-Sub;Yang Jong-Woon;Yun Han-Seok;Kim Beom-Gyu
分类号 H02J7/00 主分类号 H02J7/00
代理机构 Christie, Parker & Hale, LLP 代理人 Christie, Parker & Hale, LLP
主权项 1. A protection circuit of a battery pack having a battery cell charged by a charging device, the protection circuit comprising: a charge switch coupled to a high current path (HCP), the charge switch disposed between the battery cell and the charging device configured to charge the battery cell; a detecting unit coupled to the HCP at a node between the charge switch and the charging device and configured to detect a voltage or a current on the HCP of the charging device; a controller configured to sense the voltage or the current of the charging device through the detecting unit during a charge stop period stopping a charging of the battery cell and to determine whether or not an error of the charging device occurs according to the voltage or the current of the charging device, and a blocking unit configured to block coupling between the charging device and the battery cell when the error occurs, wherein the blocking unit comprises: a fuse coupled to the HCP in series;a heater having a first terminal coupled to an end of the fuse; anda control switch coupled between a second terminal of the heater and a ground, wherein a gate terminal of the control switch is coupled to the controller.
地址 Yongin-si KR