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 |