Electronics > Projects, Designs, and Technical Stuff

Dimming meanwell led driver

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daniel444:
hi
so ive been building some cob led lamps with Chinese boost drivers and they worked out quite well
now ive upgraded to a meanwell dc to dc boost driver LDH-45 , seems to be the only brand name boost driver on the market
it has a dimming function but it requires voltage or pwm input , not a simple 10k pot that would make for a neat build
i have  bought a tiny module that outputs 0.8v , this activates the dimming but not down to a low enough level , it seems i need 0.25v to get full dimming
i dont know how to get the 0.25v i need
i dont want to use a bulky ebay  pwm module , and the requirements seem to specify a certain type of pwm anyway
any ideas ??

daniel444:
here is a picture of the lamp i built

MarkF:
I'm not familiar with these.

But, isn't as simple as adding a pot and resistor???

   

daniel444:
thanks!
your suggestion  has worked
i didn't realize it was so simple

DaJMasta:
They make them to be easy!  If you want digital control instead, you just feed your PWM signal into the relevant terminal.

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