发明申请
- 专利标题： SHARED PROTECTION SCHEME FOR MULTIPLE VARIABLE BATTERIES
- 专利标题（中）： 多种可变电池的共享保护方案
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申请号： US12885906申请日： 2010-09-20
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公开(公告)号： US20120069990A1公开(公告)日： 2012-03-22
- 发明人: Qiangsheng Charssen Ge , Elizabeth Ellen Perry , David Paul Chabinec
- 申请人： Qiangsheng Charssen Ge , Elizabeth Ellen Perry , David Paul Chabinec
- 主分类号： H04M1/78
- IPC分类号： H04M1/78
摘要：
A device includes a plurality of subscriber line interface circuits and a shared protection device. Each subscriber line interface circuit has a voltage input terminal and first and second interface line terminals. The shared protection device is coupled to the interface line terminals and operable to sense a negative reference voltage representing a most negative one of the voltages present on the voltage input terminals and to provide overvoltage protection responsive to a voltage on at least one of the interface line terminals exceeding the negative reference voltage.
公开/授权文献
- US08705728B2 Shared protection scheme for multiple variable batteries 公开/授权日：2014-04-22