An intelligent driver for Light Emitting Diode Street Lighting

Due to light emitting diode (LED) with better performances , the demand for developing LED Street Lighting is growing continuously. Nowadays, a topic of interest in this context is the search for electronic driver in order to take advantage of LED performances. This work focuses in saving potential pitfalls during intelligent driver design procedure. To meet the LED street lighting application, the intelligent driver is based on our patented LED modules, which derived from the thermal, photometric, power electronics techniques. The intelligent driver includes: 1) an AC/DC converter, designed in a Quasi-Resonant Operation flyback topology to maintain high efficiency and constant current/voltage output of 800 mA/31 V with variable voltage output at wide input voltage range of 100-250 V/AC; 2) Also, the intelligent street lighting controller which performs the function of soft startup, Full ON, Hall ON and OFF is achieved. By setting an example of a 50 W LED pole head design, the suggested driver has been conducted in order to illustrate the complete process and results, which shows 72% more energy savings compared with conventional street lighting after 3 month running.