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I don't understand the first paragraph sorry. How the calibration works etc, I need to see a video with example because with words I don't get it.
But okey I do have in mind this is 1 chip, and it's good to know I can change the duty cycle in it.
Thanks for the recommendation.
I still don't understand what you use in it, like ADC SAR etc.
Is it possible to change duty cycle in it ? And I need to have a board ? PWM was supposed to be just a part of the PCB lamp or so I imagined.
Well nevertheless I will stop here tbh, thanks for the help I will stop here and do my...
Yea hey
LED I have been provided with was exactly 6V/1A if it's what you are asking or perhaps the characteristics which I don't have yet, all I know are just 6Vf and 1A max.
But this is not important because the drivers are already selected, I just needed many PWM that's all. I didn't know how...
You are right, sorry. I went straight into that huge detailed table. And I know it has 18 pages so I tried to find essential informations.
Yes I again messed it.
But first for the "not higher" there is "or" in between "not" and "higher". "It can be 3.3V why not. or higher" I add " like 5V"...
Maybe this is not the place to read it so I wrote what was here.
I'll try to defend here myself.
So when I read that the PWM input of that AL1791AFE-13 must be min 2.5V so the output of the PWM generator can be 3.3V or 5V. I just said what Voltage level can be on the output.
I don't know...
Okey then.
Looking at the driver which is : AL1791AFE-13 It says that the PWM input for High signal must be : min 2,5V and Low signal must be : max 0.3V So the output of the PWM can be 3.3V why not or higher doesn't matter that much.
How much current is drained from the PWM pin of that driver...
Check post#5 I said which driver I use .... I have said what driver it is.
Supply, signal voltage levels as I have said is unknown for me because I don't know what level it must be. I wanted to know how to find these elements that are PWM generators and not LED drivers constant current with...
I read and I even said that some of the stuff that you require is still unknown for me I just asked a really simple question but seems to be to much.
Yup I don't read post why not and not datasheets because I have to understand everything why not.
Thanks I guess I'll try again on my own.
I...
Okey so I am driving the LEDs with the driver AL1791AFE-13 for each 30 LEDs to make a lamp that can adapt it's brightness to the environment. So each LED has to have independent PWM is it now more sufficient ?
All I asked is the PWM generator multichannel, or rather how to find one. Because I...
I was also thinking how to find more elements like LT8500 because when I check the LED drivers they usually are constant current and not PWM output or they are constant current (sink) with PWM. But I was looking for only PWM output and not current sink IC / constant current output.
The LT8500...
I have 30 LEDs that are 6W, 1A also all of them are parallel and not series, and they have to work independently so I can change the Width in the PWM for the brightness control of each led separately.
The one you've told me is the LED driver, but it is not a constant current driver so it might...
Hello !
I have 24 high power LED drivers and each one of them requires independent PWM, is there any IC that has couple of independent PWM channels and I can program it using any interface ?
Hello !
I've order today neopixels and tried to find some codes or info how do they work and found this website : https://www.thevfdcollective.com/blog/stm32-and-sk6812-rgbw-led. I wanted to ask of somebody know whether the callbacks will execute in time ? I don't know how to measure it...
Why hate yourself ?
I am partly still convinced with the hypothetics I've said in the beginning but ok. And they happen to probably occure in the actual program as well. But sure.
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