LAMP DISCONNECTION DETECTION DEVICE

PURPOSE:To previously perform the disconnection detection and annuciation of lamps that are used at night, such as a tail lamp and the like and improve their applicability by detecting the disconnection when lamps such as a strap lamp and the like that are used in the daytime are turned on. CONSTITU...

Full description

Saved in:
Bibliographic Details
Main Authors TAKADA NOBUAKI, NAITOU MOTOHARU, MIZUTANI ETSUO, OOIWA KATSUHIKO, FUKITA KATSUNORI
Format Patent
LanguageEnglish
Published 06.12.1983
Subjects
ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To previously perform the disconnection detection and annuciation of lamps that are used at night, such as a tail lamp and the like and improve their applicability by detecting the disconnection when lamps such as a strap lamp and the like that are used in the daytime are turned on. CONSTITUTION:When a strap lamp switch 4 is turned on, strap lamps 6 light and the output voltage is set to level L when the same lamps are normal. On the other hand, at least one of the lamps 6 is is disconnected, the output voltage of a comparator 12 is set to Level H and a transistor 16 is turned on through a delay hold circuit 14 and then an indicator lamp 5 lights. Besides, when the switch 4 is ON, current flows also to a detection resistor 11 through a diode 8. When at least one of tail lamps 7 is disconnected, the output voltage of a comparator 13 is set to Level H and the indicator 5 lights in the same way as the above.
Bibliography:Application Number: JP19820091842