CMB16D-QC

[plasmadrive]

I have looked but have been unable to find the answer. Does the CMB16D-QC have PWM outputs?

If not, does anyone have a recommendation for a controller that will work with S3 that does have PWM output.

LEDs will change color temp with current change. If you PWM them and you have constant current LED, the color temp will stay fairly stable. If you just change voltage the color temp will change with it. The dimming is also not as smooth at the very bottom without PWM.

[Geoff Harvey]

See CMB16 user manual:

Nitty-Gritty
This section is for technical types who are not sure
whether their application would be a good match for
the CMB16D.
There are two banks of MOSFETs, bank 1 for output
channels 1 to 8, and bank 2 for output channels 9 to
16. The positive outputs of a bank are all tied
together and connected through their fuse to the
positive power input. A MOSFET is used to ground
the load connected to its channel, so positive power
is always present at the load.
The MOSFETs are Pulse Width Modulated at 400
Hz. 1/400th second = 2.5 milliseconds. There are 240
possible intensities. This means that in each 400th of
a second, the grounding pulse is somewhere
between 0/240*2.5 ms (off) and 240/240*2.5ms (full
on.)

Regards Geoff

[Donny M. Carter]

Geoff Harvey wrote:

See CMB16 user manual:

Nitty-Gritty
This section is for technical types who are not sure
whether their application would be a good match for
the CMB16D.
There are two banks of MOSFETs, bank 1 for output
channels 1 to 8, and bank 2 for output channels 9 to
16. The positive outputs of a bank are all tied
together and connected through their fuse to the
positive power input. A MOSFET is used to ground
the load connected to its channel, so positive power
is always present at the load.
The MOSFETs are Pulse Width Modulated at 400
Hz. 1/400th second = 2.5 milliseconds. There are 240
possible intensities. This means that in each 400th of
a second, the grounding pulse is somewhere
between 0/240*2.5 ms (off) and 240/240*2.5ms (full
on.)

Regards Geoff

Great job on finding their to in the users manual Geoff!

Donny

[plasmadrive]

Thanks. I couldn't find any manuals on the LOR. Site. This is exactly what I wanted to know before ordering.

Craig

[cmoore60]

http://www.lightorama.com/Documentation.html

[plasmadrive]

aaahhh.. ya know.. I just plain didn't look in the right place. I was looking on the product page for it and trying to find a link to the tech stuff. Most companies that sell control parts and so on usually put a link to the technical or users manual right on the page with the product. I am spoiled that way and guess I just didn't look deep enough on the LOR site.

Now I know where to look.

Thanks

[Surfing4Dough]

plasmadrive wrote:

aaahhh.. ya know.. I just plain didn't look in the right place. I was looking on the product page for it and trying to find a link to the tech stuff. Most companies that sell control parts and so on usually put a link to the technical or users manual right on the page with the product. I am spoiled that way and guess I just didn't look deep enough on the LOR site.

Now I know where to look.

Thanks

I agree that the manuals are not prominent enough which hopefully explains why many people seem to refuse to read them. The entire menu structure on the website is overwhelming (way too many links, some of which are redundant). Such info should be easier to find.

[Geoff Harvey]

Its Probably worth a mention here that the home page of the LOR Forums has several links to LOR related material including the manuals.

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