- Видео 9
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Nanometer Lighting
США
Добавлен 29 дек 2015
Headquartered in New York City, Nanometer Lighting offers simple yet sophisticated static, tunable white and RGBW backlighting and micro linear products. Our lighting solutions are well thought out and engineered for challenging and sustainable architectural commercial applications.
Is PWM Dimming Bad? | Ask Nanometer
nanoltg.com - Is PWM Dimming Bad?
Nanometer Lighting
57-10 49th place
Maspeth, NY 11378
(718) 497-0394
Nanometer Lighting
57-10 49th place
Maspeth, NY 11378
(718) 497-0394
Просмотров: 815
Видео
How Do Tunable Fixtures Work? | Ask Nanometer
Просмотров 1882 года назад
nanoltg.com - How Do Tunable Fixtures Work? Nanometer Lighting 57-10 49th place Maspeth, NY 11378 (718) 497-0394
Holiday Special - 'How Do You Light a Christmas Tree?' | Ask Nanometer
Просмотров 1553 года назад
nanoltg.com - Our Holiday Special - 'How Do You Light a Christmas Tree?' Nanometer Lighting 57-10 49th place Maspeth, NY 11378 (718) 497-0394
What is Voltage Drop? | Ask Nanometer
Просмотров 1403 года назад
nanoltg.com - What is Voltage Drop? Nanometer Lighting 57-10 49th place Maspeth, NY 11378 (718) 497-0394
How Does 0-10v Dimming Work | Ask Nanometer
Просмотров 14 тыс.3 года назад
nanoltg.com - How does 0-10v dimming work? Your answers in plain english. 😀
Constant Current vs. Constant Voltage | Ask Nanometer
Просмотров 6 тыс.3 года назад
nanoltg.com - What is the difference between constant current versus constant voltage?
Forward Phase vs. Reverse Phase Dimming | Ask Nanometer
Просмотров 8 тыс.3 года назад
nanoltg.com - What is the difference between forward phase and reverse phase dimming? And why would I use one over the other?
Architectural LED Backlighting Manufacturer | Manhattan, NYC
Просмотров 5357 лет назад
nanoltg.com/ Headquartered in New York City, Nanometer Lighting offers simple yet sophisticated static, tunable white and RGBW backlighting and micro linear products. Our lighting solutions are well thought out and engineered for challenging and sustainable architectural commercial applications. Nanometer Lighting 57-10 49th place Maspeth, NY 11378 (718) 497-0394
Commercial LED Backlighting Manufacturer | Manhattan, NYC
Просмотров 1,3 тыс.8 лет назад
nanoltg.com/ Headquartered in New York City, Nanometer Lighting offers simple yet sophisticated static, tunable white and RGBW backlighting and micro linear products. Our lighting solutions are well thought out and engineered for challenging and sustainable architectural commercial applications. Nanometer Lighting 57-10 49th place Maspeth, NY 11378 (718) 497-0394
Yeah, links to part dont work and are no where to be found. Just when one gets exited, this happens. Well..
But what there is inside the sincing dimmers? Could be used 0-100 K ohm potentiometr?
110 VAC is the RMS value (DC equivalent power). Peak voltage of AC is 110*1.414 = 156 V peak (square root 2 = 1.414)
Thanks for the video, that clears a lot; hopefully you're okay.
Great video! That answered alot of questions in under 5 min.
@nonameter_Lighting If the LED driver is providing the 10VDC with a positive and negative (Purple & Pink) to the "dimmer", how is it reading a change in the 10VDC? What's going on in the dimmer that would change the voltage? Or am I looking at this in the wrong way. 10VDC is coming from the driver on the pink which is powering the dimmer, which then sends the adjusted return voltage on the Purple? In any case, how is the voltage changing?
Slide dimmer gonna resist
@@r055f1991That only answers half the question. If the dimmer is simply a resistor, no matter how big the resistance is, the voltage across that resistance is always going to be 10V.
I can think of two possible ways to detect what the controller does in that case, if the controller is a simple variable resistor. - By increasing the resistance, the current that will flow back to the driver will decrease.. The driver could measure that. - The driver output is 10 Volt but has an (internal) output resistor of 10k (for example) Then if you change the resistance of the controller to 10k, the output of the driver (at its terminal) is only 5 V. Each of the resistors (both 10k in my example) drops 5V. I don't know what happens inside your specific driver.
what's sqeeeling in the background 😅
Could you explain this again with oranges and apples?
Yeah..
This was exactly what I was looking for. Thank you!
Great demonstration. Thanks. And..You just say 'Bingo' 😉
It IS bad the way it's usually implemented, i.e. everything lights up and goes dark in sync and in too low a frequency. It's almost worse when things are PWMing at different frequencies and you get slow pulsation as a result. If you gotta dim down to 10% duty cycle, just have 10 LEDs and offset the PWM by 1/10 pulse width at every LED, so the thing as a whole is always lit up.
Although I was looking for PWM related to solar chargers, I clicked on this anyway. Nice explanation of PWM dimming.
that was plain english?
you mention an led can continue to pull more and more current and that a constant current driver is useful. You then mention that when there are an unknown number of leds, a constant voltage is preferred, but when using a constant voltage driver, whats preventing the leds in that case from continuing to pull more and more current?
exactly, this was a good visual introduction, but it would be nice to include more details or examples on how the current is limited to the e.g. 20mA per diode as in this example. I assume at the simplest design a resistance is added to each diode to make sure the 2V supply does not push the max ampere - as in for example (2-0.7)/20mA = 65 ohm resistance ..?
Hi Jordan, in simple terms, a constant current board is just a PCB with Diodes on it, whereas a constant voltage board uses additional components to manage the current to each LED. LEDs are inherently constant current so this is what matters,
huh?
🙏👌👍 thanks a million!
"May result in the building burning down." I guess I should pay attention then.
Hello, nice video ! how to do to have a constant 1amp 14V power supply to charge a battery. WIth classical PSUs, when the battery reaches 13.5v, it takes ages to go to 14v because it draws very few current. Pushing 1Amp all the way will make it charge better and faster. Thanks.
This needs more exposure. Do you have reddit?
Thanks for the explanation! :)