公开(公告)号：EP0169642A1

公开(公告)日：1986-01-29

申请号：EP85304058.2

申请日：1985-06-07

申请人： DONNELLY CORPORATION

发明人： Bitter, Lowell Edward ,  Lundgren, Bryan Lunn

IPC分类号： H05B3/26 ,  H02H5/10

CPC分类号： B32B17/10036 ,  B32B17/10174 ,  H02H5/10 ,  H05B1/0236 ,  H05B3/84 ,  H05B2203/035

摘要： A circuit (10) and method for interrupting power applied to an electrically conductive panel (12) such as a vehicle windshield or window upon cracking of the conductive coating (15) or element thereon. The circuit includes structure for 1) monitoring the resistance of the conductive element and 2) interrupting power applied thereto when the resistance of the conductive element assumes a value indicative of element cracking.

公开(公告)号：EP0169642B1

公开(公告)日：1990-10-24

申请号：EP85304058.2

申请日：1985-06-07

申请人： DONNELLY CORPORATION

发明人： Bitter, Lowell Edward ,  Lundgren, Bryan Lunn

IPC分类号： H05B3/26 ,  H02H5/10

CPC分类号： B32B17/10036 ,  B32B17/10174 ,  H02H5/10 ,  H05B1/0236 ,  H05B3/84 ,  H05B2203/035