发明授权
- 专利标题： Protector circuit
- 专利标题（中）： 保护电路
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申请号： US809825申请日： 1985-12-17
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公开(公告)号： US4695916A公开(公告)日： 1987-09-22
- 发明人: Hidetaka Satoh , Hideyuki Kurosawa , Yoshiaki Kamijoh , Hiromichi Jyumonji
- 申请人： Hidetaka Satoh , Hideyuki Kurosawa , Yoshiaki Kamijoh , Hiromichi Jyumonji
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Telegraph and Telephone Corporation
- 当前专利权人： Nippon Telegraph and Telephone Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-272555 19841224
- 主分类号： H02H9/00
- IPC分类号： H02H9/00 ; H02H9/04 ; H04M3/18
摘要：
A protector circuit comprises series connection of a bidirectional voltage limiting element and a bidirectional thyristor between a signal line connected to a communication equipment and ground. The breakdown voltage V.sub.B of the bidirectional voltage limiting element is set to be slightly higher than the battery feed voltage V.sub.Bf on the signal line and lower than a predetermined non-operation voltage V.sub.A of the protector circuit. The sum of the breakdown voltage V.sub.B and the break-over voltage V.sub.BO of the bidirectional thyristor is set to be lower than breakdown voltage V.sub.R of the equipment and higher than the non-operation voltage V.sub.A.
公开/授权文献
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