A Self-Oscillating Flyback Converter for Dimmable LED Lighting System

The flyback converter for use in interior LED lighting systems is suggested in this study as being dimmable, affordable, and energy efficient. With the use of a DC-DC converter and a traditional pulse width modulation (PWM) LED driver topology, this system also offers dimming capabilities. An experimental setting is used to test and assess the proposed notion. The LED driver produces a voltage of 60V when it is operating at 230V of ac input power and 50 Hz of line frequency. With PWM dimming at a frequency of 244 Hz, the output current is controlled to 320 mA. Circuit efficiency is 83% at the rated light power.