发明名称 LUMINOUS ELEMENT CONTROL CIRCUIT FOR ROAD MARKER
摘要 PROBLEM TO BE SOLVED: To allow using as power supply a capacitor which consumes less power and accordingly has a long lighting or twinkling time of a luminous element. SOLUTION: A capacitor 2 of a road marker is charged, and a light emitting element 5 is lighted up with the discharge current of the capacitor 2. The capacitor 2 is connected with the input stage of a DC/DC converter circuit 3, to whose output stage the luminous element 5 is connected, and thereto is also connected an element driver circuit 4 through a constant voltage circuit 6, and the output stage of the driver circuit 4 is connected with the light emitting element 5. The circuit 4 is furnished with a pulse generating means 7 and switching modulating means 8 in such an arrangement that the pulses after switching modulation are given to the output stage of the circuit 4.
申请公布号 JPH09143938(A) 申请公布日期 1997.06.03
申请号 JP19950333874 申请日期 1995.11.15
申请人 TIETECH CO LTD 发明人 TANABE TETSUO
分类号 E01F9/00;E01F9/016;E01F9/06 主分类号 E01F9/00
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