PWM Slope

Related to the development libraries, released by Curt Binder
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Ademster
Posts: 144
Joined: Tue Aug 14, 2012 1:11 pm

PWM Slope

Post by Ademster »

I am running LDD Drivers. everything is working awesome, but I have one complaint.

it isn't smooth transitions. I can see it step up in brightness and step down in brightness.
Is there a way to smooth this out?

I currently have them go from 0% up to 60% for the blue channels.
0-40 for colors
0-30 for whites.

60min durration.
Adam
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Sacohen
Posts: 1833
Joined: Sun Apr 21, 2013 6:25 am
Location: Davie, FL

Re: PWM Slope

Post by Sacohen »

That's what I'm leaning towards using too.

I have the LDD and the Mean Well ELN-60-48D dimmable driver and I tried the ELN's and wasn't happy with their performance. Besides they are not good with fst transitions for lighting effects.

I haven't tried the LDD drivers yet.
ReEfnWrX
Posts: 234
Joined: Tue Nov 05, 2013 8:40 am
Location: Houston TX

Re: PWM Slope

Post by ReEfnWrX »

What do you not like about the ELN performance? I am not to worried about introducing storm affects and I know they aren't good for rapid on/off's or changes in intensity. Is there any other reason you do not like them or is that it?

They seem to work great for me, except for the fact that they turn off at <11%. Wish they would dim to 0
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Ademster
Posts: 144
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Re: PWM Slope

Post by Ademster »

I had the ELN60-48P drivers. the lack of good control sucked. have to have certain amount of leds per string in order for them to work properly. to many restrictions.

LDD are just bad ass. on one ldd I have 2 leds, works with out any problems.


I have LDD drivers for sale. Search my thread.
Adam
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rimai
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Re: PWM Slope

Post by rimai »

There is another user that is working on implementing this for our next libraries :)
http://forum.reefangel.com/viewtopic.php?p=38708#p38708
Roberto.
AlanM
Posts: 263
Joined: Wed Jan 01, 2014 7:26 am

Re: PWM Slope

Post by AlanM »

Yep. Among other things I am overloading these function calls so you can pass in integers instead of bytes which will allow for more steps of dimming. I have LDDs also and want to squeeze out 4096 levels instead of 100. 8)
AlanM
Posts: 263
Joined: Wed Jan 01, 2014 7:26 am

Re: PWM Slope

Post by AlanM »

Ademster, what ports are you using to send pwm signals to the LDDs? Are you using the ports on the relay box or one of the ATO ports or so you have a dimming expansion?
Ademster
Posts: 144
Joined: Tue Aug 14, 2012 1:11 pm

Re: PWM Slope

Post by Ademster »

Expansion
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AlanM
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Re: PWM Slope

Post by AlanM »

Ademster wrote:Expansion
Good. Should work fine, I think.
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