Hello,
I am going to use arduino to control some led lights. I know this project has been done before but my drivers use a 0-10v PWM signal for dimming and not analog. So I am trying to figure out how to achieve that. They sell 0-5v pwm to 0-10v analog converters. I cannot find the same for what I am needing. Thanks!
If you need to create a 0-10V PWM signal, your Arduino can create 0-5V, you can then use a transistor to convert this up to 0-10.
A MOS FET or a BJT could be used, there are also other drivers.
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Jtroutt19:
...but my drivers use a 0-10v PWM signal for dimming and not analog.
Are they "Meanwell" drivers? Then they might not need a 10volt PWM signal.
Post a link to the driver, so we don't have to guess.
Similar thread here.
Leo..
No they are not meanwell. Is a viparspectra 165w fixture. I had the model number at one time of the drivers I can’t find it now I would have to open the fixture again. I did look it up online though and it said it was 0-10v pwm for dimming
If the fixture can be dimmed with a pot (analogue), then you most likely don't need 10volt PWM.
Just try with an opto, as explained in the other thread.
Leo..
The pots that control dimming are on a secondary board that connects to the drivers. 4 wire connector that goes to each driver
I suppose the pots are not used for resistive dimming but for controlling the PWM output? If then you might need some signal amplifier for that. You might need LF356N for that. There are other ways to do it too.
If you don't have the datasheet for the LED driver...
A quick google turned up this which sort of matches your discussion, would this be what you are talking
"VIPARSPECTRA Timer Control 165W LED Aquarium Light Dimmable Full Spectrum For Coral Reef Grow Fish Tank"
This is a remotely controlled divice that plugs into a mains outlet.
Daz