Datasheets MeanWell

File Name:ELG-300-SPEC 2019-10-10 Block Diagram PFC fosc : 45KHz PWM fosc : 100KHz ※ This series is able to work in either Constant Current mode (a direct drive way) or Constant Voltage mode (usually through additional DC/DC driver) to drive the LEDs. DRIVING METHODS OF LED MODULE Typical output current normalized by rated current (%) In the constant current region, the highest voltage at the output of the driver depends on the configuration of the end systems. Should there be any compatibility issues, please contact MEAN WELL. 100 60 (min.) Vo(%) 50 100 Io(%) (B) Constant Current area (C) Hiccup Protection (A) Constant V oltage area DETECTION PWM & PFC CIRCUIT EMI FILTER RECTIFIERS POWER SWITCHING FILTER & RECTIFIERS Vo+ Vo- I/P CONTROL O.V.P. & O.L.P. PFC CIRCUIT O.L.P. O.T.P. PFC CONTROL CASE :FUNCTIONAL GROUND 300W Constant Voltage + Constant Current LED Driver ELG - 300