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Topic: Control CC supply with Arduino  (Read 177 times) previous topic - next topic

Noobian

Hi,

I have this Constant Current Led Driver and I want to dim the led which it powers using an Arduino.
How can I do this? is it even possible?

The ratings written on the case is
8-12W
Input - AC90-265V 50/60Hz
Output - DC24-45V 300mA ±5%
TC:75°C  TA:50°C(MAX)


I'm attaching the photo of the drivers internals. The Mosfet I see is a CS2N60 A4H

Grumpy_Mike

Quote
is it even possible?
No.
The design is properly not suitable for dimming control. You need to know a hell of a lot more about the circuit that a photograph of it.

Noobian

So if I replace the Power supply with a basic AC to DC converter then can I use PWM?

tinman13kup

First things first. What led are you driving? Will it be the ONLY one being driven, or will you add/subtract leds on a whim?
Tom
It's not a hobby if you're not having fun doing it. Step back and breathe

Noobian

It's actually a (48v?)led strip without any resistors. I won't be adding anymore leds.

DangerToMyself

Hi,

I have this Constant Current Led Driver and I want to dim the led which it powers using an Arduino.
How can I do this? is it even possible?

The ratings written on the case is
8-12W
Input - AC90-265V 50/60Hz
Output - DC24-45V 300mA ±5%
TC:75°C  TA:50°C(MAX)


I'm attaching the photo of the drivers internals. The Mosfet I see is a CS2N60 A4H
I had the same question not too long ago. And the best answer I got was this.

 It can be done. But it's beyond the abilities of someone who has to ask if it can. You're better off buying a dimmable LED driver. It will save you from burning down your house. Or worse, someone getting hurt or even killed.

That's how It was put to me. So, I gave up on the idea and bought what I needed.

Noobian

#6
Aug 14, 2017, 06:50 am Last Edit: Aug 14, 2017, 06:51 am by Noobian
That's how It was put to me. So, I gave up on the idea and bought what I needed.
I don't want the Triac dimmable driver.

I've been doing some experimentation and I think I've got it figured out by now. I'm gonna use a boost converter to power the strip and use PWM to dim the leds. The driver is going to replaced by a wall wart.

Grumpy_Mike

So a boost converter that handles 48V output at a constant current of what? You still have not defined your problem, so you are wasting your time looking for a solution until you have.
It is unlikely you will find anything through that route.

Noobian

XL6009 boost converter tops out at 37.1 volts. Gives 0.26 amps out.

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