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Rgb led driver error

Posted: Mon Apr 14, 2014 7:28 pm
by SinghLED
Hi people I'm wondering if I could get some help. using pwm method with Arduino i am getting a dim light when it should be completely off the code is correct but i think it maybe the circuit. I have built an rgb led driver using an LM317 connecting the Vout and adj via a resistor that then goes to the positive connection of the high power LED than it passes to a MOSFET the stp14nf10 The leg controlling the pwm is connected to the led.

I appreciate any reply thanks

Re: Rgb led driver error

Posted: Fri Sep 12, 2014 7:35 am
by DanKruger
Hi there, singh, I was about to write the same question when I saw your post. I've got a position of an electronics enclosure design at an electronics development company and I faced the situation when using pwm for Arduino I get a dim light while, to my understanding, there shouldn't be any.
Waiting for any suggestion. If I find anything on the Net I'll post it here.