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the ones you can just plug in where you used to have a normal incandescent one) have a transformer inside them which brings mains (220v here in Uruguay) to 12v DC. For simple on/off stuff (turning on a light, etc.) I've seen plenty of examples and I'm confident I could do that without that many issues.ī) You can do PWM "through" a relay, but that requires the relay to switch fast enough and also SSRs would be better for this as mechanical relays might make noise and/or have their life shortened by the quick switching.Ĭ) All LED "replacement" light bulbs (i.e. plugged in on mains electricity), Arduino is ok doing that, but you need a relay in between. So, what I'd like to do is confirm a few things I think I learned and ask about a couple of things that still confuse, so here it goes :)Ī) If you want to control anything "big" (i.e.
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Often, this means cost savings for consumers who don't need dimming capabilities.First post here, so as an introduction I'll just say that I'm very new to Arduino and while I'm quite comfortable with the coding side of it, the hardware/electronics part is what I'll have to learn the most.Īfter doing some PWM tests on the breadboard, I was immediately thinking "hey, this would be cool to do with my home lights", so I started reading a bit and it got to the point where I figured asking somebody "in the know" would be a lot more productive and/or less conducive to blowing stuff up :)
![quiet dimmer for led lights quiet dimmer for led lights](https://www.ubuy.vn/productimg/?image=aHR0cHM6Ly9tLm1lZGlhLWFtYXpvbi5jb20vaW1hZ2VzL0kvNTFBK1g3bDVGbkwuX0FDX1NMMTAwMF8uanBn.jpg)
The manufacturer decided to leave out the feature: it simply was not included in the circuitry. Why aren't some LEDs dimmable?īut why are some LEDs not dimmable at all? Simple.
Quiet dimmer for led lights driver#
This driver determines how the LED will react to different types of dimmers: incandescent phase control, leading-edge, trailing-edge, three-wire Lutron, or 0 to 10V dimmers.Īnd just because one LED dims just fine with one type of dimmer, that doesn't ensure it will work with others. The sheer number of scenarios is due to LED bulbs having much more complex circuitry inside, referred to as the driver. This happens when the applied voltage (or the average of the applied voltage) drops below the minimum voltage required to power the LED. There is also a chance the LED works fine but shuts off or "drops out" below a certain brightness level.
![quiet dimmer for led lights quiet dimmer for led lights](https://sc04.alicdn.com/kf/H9f3ff1f7e0a84507867d773dc96c6faev.jpg)
LEDs that are incompatible with dimmers tend to flicker.