A lighting circuit includes a control unit that selects one of an extinguishing mode and a plurality of lighting modes based on a first control signal and a second control signal, and a drive unit. The control unit is configured to i) select the extinguishing mode when at least one of the first control signal and the second control signal is a non-pulse signal, and ii) select one of the plurality of lighting modes based on the combination of the duty ratio of the first control signal and the duty ratio of the second control signal, when both the first control signal and the second control signal are pulse signals.


    Access

    Download


    Export, share and cite



    Title :

    Lighting circuit and vehicle lighting device


    Contributors:

    Publication date :

    2018-09-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / H05B ELECTRIC HEATING , Elektrische Heizung



    LIGHTING CIRCUIT AND VEHICLE LIGHTING DEVICE

    ICHIKAWA TOMOYUKI | European Patent Office | 2018

    Free access

    LIGHTING CIRCUIT AND VEHICLE LIGHTING

    ICHIKAWA TOMOYUKI | European Patent Office | 2020

    Free access

    LIGHTING CIRCUIT AND VEHICLE LIGHTING FIXTURE

    YAGITSU SHOHEI / ITO MASAYASU / MURAMATSU TAKAO | European Patent Office | 2018

    Free access

    LIGHTING CIRCUIT, LIGHTING FIXTURE FOR VEHICLE

    OTA SHINJI / AKINO KIMITOSHI | European Patent Office | 2017

    Free access

    LIGHTING CIRCUIT AND VEHICLE LIGHTING FIXTURE

    ICHIKAWA TOMOYUKI / HARASAKI MASATO | European Patent Office | 2020

    Free access