Pulse-switched controller for LED lighting of LED power supply module of lighting fixtures in automobile applications provided light sources with LED and power supply module of LED function and excitation

摘要

In the present invention, there is disclosed a pulse-switched controller for LED lighting of LED power supply module of lighting fixtures in automobile applications provided light sources with LED and power supply module of LED function and excitation, where the power supply module (3) comprises at least one resistance controller (38) operating in pulse-switched mode and having its input connected to the last cathode of a corresponding LED branch (33) LED and having its output connected to the inlet electrode of a switching element (37), wherein the switching element (37) is connected by the inlet electrode to ground. The switching element (37) control electrode is connected with the output of a pulse generator (36) with a set signal mark-space ratio dependent on the input voltage, whereby the pulse generator (36) with the set signal mark-space ratio dependent on the input voltage is connected through a scanning input with the input voltage of the input circuit (31) and through an external input (35) to enable combinations of light functions with external signal, whereby the anode of the first diode in the LED branch (33) chain is connected with the input voltage of the input circuit (31).