VEHICLE LIGHTING

When a power supply voltage VIN is supplied to an input terminal VIN, a first constant current driver 210 supplies a first driving current IOUT1 to the anode of a first semiconductor light source 101. A first switch SW1 is provided between the first semiconductor light source 101 and a second semico...

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Bibliographische Detailangaben
1. Verfasser:	ICHIKAWA, Tomoyuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL BLASTING ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHTING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES PERFORMING OPERATIONS SYSTEMS THEREOF TRANSPORTING VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	When a power supply voltage VIN is supplied to an input terminal VIN, a first constant current driver 210 supplies a first driving current IOUT1 to the anode of a first semiconductor light source 101. A first switch SW1 is provided between the first semiconductor light source 101 and a second semiconductor light source 102, and a second switch SW2 between the first semiconductor light source 101 and a third semiconductor light source 103. When a switching terminal SEL has a high impedance or low level, a switching circuit 220 turns the first switch SW1 on and the second switch SW2 off. When a switching voltage VSEL is supplied to the switching terminal SEL, the switching circuit 220 turns the first switch off and the second switch SW2 on, and supplies a second driving voltage IOUT2 smaller than the first driving current IOUT1 to the second semiconductor light source 102.