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thanks barry for reply
yes,and my mosfet switch the negative wire of constant current to leds.
please tell me how to change my schematic for work my project, any idea on your mind?
thanks a lot
sorry for ask bad question.
this is schematic of my controller with atmega8 avr:
my lighting project based on constant current and i bought many pcs of this driver.
now, i want to control my leds with constant current by pwm. i cant change driver to constant voltage, because my leds in series...
hello to all
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...
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