公开(公告)号：WO2014188391A1

公开(公告)日：2014-11-27

申请号：PCT/IB2014/061669

申请日：2014-05-23

Applicant: AUTOMOTIVE LIGHTING ITALIA S.P.A.

Inventor： IELLINA, Matteo ,  ENGLARO, Andrea ,  MARCHESIN, Stefano

IPC: H05B33/08

CPC classification number: H05B33/0842 ,  B60Q1/0076 ,  F21S41/141 ,  H05B33/0827 ,  H05B33/0887

Abstract: A lighting device (4) of an automotive light (1) comprising light sources (5) supplied by a drive current (I) and a control device (6) comprising a control stage (9) generating a control signal (CS) on the basis of the difference between the drive current (I) and a predetermined reference current (Iref), and a driving stage (7), which adjust the drive current (I) on the basis of the control signal (CS). The driving stage (7) comprises a voltage stabilizing device, which supplies, in a first operation condition, a stabilized voltage (Vz2) on an intermediate node (41) thereof, a first transistor (36) having a control terminal receiving the control signal (CS); and a second transistor (37) having a control terminal connected to the intermediate node (41) to be set, in the first operation condition, to the predetermined stabilized voltage (Vz2), a first terminal connected to the light source (5), and a second terminal connected to a second terminal of the first transistor (36).

Abstract translation: 包括由驱动电流（I）提供的光源（5）和控制装置（6）的汽车用灯（1）的照明装置（4），包括控制级（9），所述控制级在所述控制级上产生控制信号 驱动电流（I）与预定参考电流（Iref）之间的差异的基础，以及基于控制信号（CS）调节驱动电流（I）的驱动级（7）。 驱动级（7）包括电压稳定装置，其在第一操作状态下提供其中间节点（41）上的稳定电压（Vz​​2），第一晶体管（36），其具有接收控制信号 （CS）; 以及第二晶体管（37），其具有连接到所述中间节点（41）的控制端子，所述控制端子在所述第一操作条件下被设定为所述预定稳定电压（Vz​​2），连接到所述光源（5）的第一端子， 以及连接到第一晶体管（36）的第二端子的第二端子。

公开(公告)号：WO2011148259A2

公开(公告)日：2011-12-01

申请号：PCT/IB2011/001161

申请日：2011-05-28

Applicant: AUTOMOTIVE LIGHTING ITALIA S.P.A. ,  CODUTTI, Giancarlo ,  MARCHESIN, Stefano ,  MARCORI, Franco

Inventor： CODUTTI, Giancarlo ,  MARCHESIN, Stefano ,  MARCORI, Franco

IPC: H05B33/08

CPC classification number: B60Q1/00 ,  H05B33/0887

Abstract: Light (30) for motor vehicles and the like provided with a lighting device (31) comprising a pair of power supply lines (42, 43) flowed through by a primary supplying current (I1), two or more lighting branches (34) each comprising one or more light sources (37) adapted for being flowed through by a secondary supplying current (I2i); and an electronic control circuit (33) configured to determine the secondary current (I2i) flowing through each lighting branch (34); limit the primary supplying current (I1) to a predetermined minimum value (I1M) when the secondary current (I2) flowing through at least one of said lighting branches (34) is lesser than a predetermined threshold current (Si); control the simultaneous transition of the light sources (37) from a pre-lighting state to a complete-lighting state, when each of the secondary currents (I2i) flowing through the lighting branches (34) is greater than or equal to the predetermined current threshold (Si).

Abstract translation: 具有设置有照明装置（31）的机动车辆用灯（30），该照明装置（31）包括通过一次供电电流（I1）流过的一对电力供给线路（42,43），分别设有两个以上的照明支路 包括适于通过辅助供电电流（I2i）流过的一个或多个光源（37）; 以及电子控制电路（33），被配置为确定流过每个照明支路（34）的二次电流（I2i）。 当流过至少一个所述照明支路（34）的二次电流（I2）小于预定阈值电流（Si）时，将初级供电电流（I1）限制在预定最小值（I1M）。 当流过照明分支（34）的每个二次电流（I2i）大于或等于预定电流时，控制光源（37）从预发光状态到完全点亮状态的同时转变 阈值（Si）。