Indicator lamp and auxiliary brake lamp lighting device at brake lamp cutting

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to brake lamp cutting, and more particularly, to a display lamp and an auxiliary brake lamp lighting device, wherein the auxiliary brake lamp is turned on when the brake lamp is not turned on even when the driver presses the brake while driving a vehicle.;According to a specific means of the present invention, when the brake lamp is disconnected, the battery power (B ⁺ ) current is input to one side (-) of the comparator CP1 through the resistor R1, and the other side (-) of the comparator CP1. When the reference voltage V _REF is input to the power supply B ⁺ current of the battery greater than the current of the reference voltage V _REF , the transistor Q1 is turned on so that the relay switch RLY SW2 is turned on. The display lamp and the auxiliary brake lamp are configured to be turned on as the relay switch RLY SW2 is turned on. In the present invention, when the brake lamp is disconnected, the display state can be checked through the display lamp, and the rear brake vehicle is turned on by the auxiliary brake lamp. There is an effect that can prevent the factors that can cause contact accidents in advance.