VEHICLE-MOUNTED LOAD CONTROLLER, VEHICLE-MOUNTED HEADLIGHT DEVICE, AND VEHICLE-MOUNTED TAILLIGHT DEVICE

摘要

A vehicle-mounted load controller (1) comprises a power supply terminal (2) connected to a power supply line (S1) through a fuse (H9), load connection sections (3) to which loads including vehicle-mounted light sources (L) are connected, switch sections (5) provided in the form corresponding to the load connection sections (3) and adapted for controlling the power feeding state from the power supply line (S1) connected to the power supply terminal (2) to the light sources (L) connected to the load connection sections (3), and a control section (6) for controlling the switch sections (5) according to an inputted control signal. The vehicle-mounted load controller (1) is characterized in that the load connection sections (3) connected to light sources (L) whose uses are different are electrically connected to the power supply terminal (2), and each of the switch sections (5) stops the feeding of power from the power supply line (S1) to the light source (L) when the magnitude of the current flowing to the light source (L) connected to the corresponding load connection section (3) reaches or exceeds a predetermined value. In consideration of the history of the light operation condition during stable operation, the rise of the lamp voltage from the start of turn-on to the stable operation is reduced. With this, an effect in prolonging the lamp life and preventing an arc jump is produced.