LIGHT EMITTING DIODE DRIVER AND METHOD FOR CONTROLLING SWITCHING THEREOF

摘要

The present invention relates to a light emitting diode (LED) driving device, which comprises: a rectifier for rectifying AC power; an inductor in which one end thereof is connected to the rectifier to receive input voltage (Vin), and the other end thereof is connected to a first LED output module from a plurality of LED output modules; the N number of LED output modules which are connected in series to be switched to allow current to be supplied to each of the N number of LED loads connected in series from the other end of the inductor; and a controller for controlling a switch of each of the LED output modules to be turned on and off.