发明授权
- 专利标题： Method for sorting positive temperature coefficient (PTC) elements
- 专利标题（中）： 正温度系数（PTC）元件分选方法
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申请号： US11466775申请日： 2006-08-24
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公开(公告)号： US07605352B2公开(公告)日： 2009-10-20
- 发明人: Yoshitaka Nagao , Hiroshi Ibaragi , Yutaka Ikeda , Kazuto Miyagawa , Yoshiaki Abe
- 申请人： Yoshitaka Nagao , Hiroshi Ibaragi , Yutaka Ikeda , Kazuto Miyagawa , Yoshiaki Abe
- 申请人地址： JP Kyoto
- 专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人地址： JP Kyoto
- 代理机构： Keating & Bennett, LLP
- 优先权： JP2004-050153 20040225
- 主分类号： H05B3/10
- IPC分类号： H05B3/10 ; H02H5/04
摘要：
In a method for sorting PTC elements having different resistance-temperature characteristics, a predetermined voltage that allows a current to sufficiently decay is applied to each of PTC elements A and B, and the PTC elements are sorted on the basis of the difference between the times required for the currents passing through the PTC elements B to reach a predetermined value (e.g., 52 mA).