PDA

View Full Version : Electrical Expertise Needed :-)


Anthony Mckay
09/18/2017, 01:58 PM
Hello everyone I'm after knowledge and help from the community.
I have 4 dsuny led panels and want to control them using the 0-10v control from a profilux 4.
I asked the maker for some technical details and after 4 months I finally got a reply as follows:
control signal is PWM and positive, it can be controller by 0-6V.
My question is what would I need to convert the 0-10v from the P4 to the pwm 0-6v to control the leds ?
Thank you in advance for any help
Regards
Anthony

der_wille_zur_macht
09/18/2017, 01:59 PM
Two resistors to make a voltage divider. Google can give you the specifics.

oreo57
09/18/2017, 03:55 PM
Err.. Profilux is 1-10V analog output. If the DSunY are PWM then isn't there a "possible" compatibility issue?

Really need someone to 1)Scope out the Turing output and/or 2) Real understanding of the driver..

0-6V PWM makes little sense..

n2585722
09/19/2017, 12:18 PM
Have you googled 0-10v to 5v PWM converter to see what you find? I use the Archon and it has 5v PWM outputs I use to control Meanwell LDD drivers directly. Before that I looked into the converters and they are out there. I never got a chance to try any of them though.

oreo57
09/19/2017, 02:08 PM
Found an image of the internal driver..
Not very impressive and answers zero questions...
Trying to obtain chip info..
http://www.qualiteitems.com/images/dsunydriver.JPG

mcgyvr
09/19/2017, 05:00 PM
Its likely 5V PWM but 6V tolerant (absolute max rating parameter).. Like a CAT4101 driver..

der_wille_zur_macht
09/19/2017, 05:34 PM
Tell us the markings on the ICs (the big chips soldered to the heat sink areas) and we can probably figure this out for you.

Somehow I missed the fact that your source signal is analog. Disregard my comment about a voltage divider, at least until we know more.

I agree, that is some pretty low end work there...

oreo57
09/19/2017, 05:42 PM
Tell us the markings on the ICs (the big chips soldered to the heat sink areas) and we can probably figure this out for you.



I agree, that is some pretty low end work there...

Yea not my image.. Trying to get the author to do a bit more work over at reef(2)Reef.
W/ the heat sinking on the driver(?) chip and no chokes can I assume a linear driver?
Probably no way of knowing I suppose.

der_wille_zur_macht
09/19/2017, 05:53 PM
It looks like a CAT4101 driver which is linear. That's not inherently bad. There are lots of switchers that are heat sinked like that too though, and it's hard to tell anything without knowing the chip.