代理人英文专利名称：BURNNOUT DETECTOR FOR CAR LAMP 发明人：TSUKADA KOUICHI,MOKUYA HIROBUMI 申请号：JP4711479discotheque
申请日：19790416
公开号：JPS55140623A
公开日：
除青春痘方法
inkjet
gulp
19801104bichong
专利内容由知识产权出版社提供不好意思日语
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摘要：PURPOSE:To obtain a compact burn-out detector which can detect the burn-out of any one of direction indicating lamps with high accuracy even if some direction indicating lamps are lectively added. CONSTITUTION:In a tractor having direction indicating lamps 1-4a 1a-4a, to which a trailer having direction indicating lamps 7, 8, 7a, 8a can be coupled, a voltage corresponding with the magnitude of lamp load is produced at the under side of current detection means or resistor 11. Said voltage is compared with the output from referential voltage generating circuit 12 by a comparator 13. Switching time per unit time of the switching circuit 15 is controlled by the output from said comparator 13 to alarm the existence of any burn-out. Here a voltage converting circuit 35 containing a switching means for changing the referential voltage or a transistor 34 is provided in the referential voltage generating circuit 12, and the transistor 34 is controlled by the on-off of additional detection means or switch 14.
申请人：NIPPON DENSO CO
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