i want to control brightness of led series with constant current power supply. but when i connect the power supply output to pwm controller and led series, i cant control the brightness because power supply has not fix voltage on output. while pwm output is 255 (high) led work fine, but when the pwm output is 200 or less (low) my led start to blinking.
i think conversion constant current to constant voltage led driver for pwm control, but i haven't any info for this.
my driver detail: input:220-240V AC /output:54-108V DC- 300mA
please help me
thanks for your help
best regards, amin
my driver pic: