Datasheets MeanWell

DIMMING OPERATION ◎ Applying additive 0 ~ 10VDC ◎ Applying additive 10V PWM signal (frequency range 100Hz ~ 3KHz): LED Strips LED Strips +V -V DIM+ DIM- + + + + - - - - “ DO NOT connect "DIM- to -V" Additive Voltage +V -V DIM+ DIM- + - “ DO NOT connect "DIM- to -V" Additive PWM signal 0V 1V 0.6V 6% 1V 10% 2V 3V 4V 5V 6V 7V 8V 9V 10V 20% 30% 40% 50% 60% 70% 80% 90% 100% 0% 10%20% 30% 40% 50% 60% 70% 80% 90% 100% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Dimming input: Additive voltage Duty cycle of additive 10V PWM signal dimming input ※ Dimming principle for PWM style output ‧ Apply one of the three methodologies between DIM+ and DIM-: 0 ~ 10VDC, or 10V PWM signal or resistance. ‧ Dimming source current from power supply: 100 A (typ.) μ PWM-120 ON OFF T ON T Output DC current Io=0A Output PWM frequency : 1.47KHz fixed (Typ.) Duty cycle(%) = × 100% T ON T ‧ Dimming is achieved by varying the duty cycle of the output current. ※ 3 in 1 dimming function (for Blank-Type) 120W PWM Output LED Driver PWM- 120 se r i es 10% 0.15% 0.15% 10% 10% 0% Duty cycle of output current (%) Duty cycle of output current (%) AC/N(Blue) AC/L(Brown) * DIM+ for Blank-Type DA+ for DA-type * *DIM- for Blank-Type DA- for DA-type +V(Red)(Brown for DA-type) -V(Black)(Blue for DA-type) DIM+(Blue)* DIM-(White)** File Name:PWM-120-SPEC 2019-12-26