Make Your Own RGB LED Light (for experimental photography and video)
Вставка
- Опубліковано 7 січ 2018
- - Make Your Own RGB LED Light
- Machen Sie Ihre eigene RGB-LED-Lampe | RGB-LED-Lampe zum Nachmachen / selber bauen
- Направете RGB-LED-светло
This is a general purpose LED light with a separate control over the red, the green and the blue output, with no dimming capability and with a potential to be used in videography or experimental photography. It can be powered from a wide range of input voltages, including a car battery, or a typical laptop AC adapter. It has a fuse and input inverse polarity protection.
Technical specifications:
• Switch controlled red, green and blue light output (independent or combined)
• Input voltage: 9-30V DC
• Input power: 32W MAX
• Input inverse polarity protection and fuse protection
• LED-Module consumed power (R+G+B): 23W
The RGB LED light presented in this video is to be used for personal or educational purposes only.
Music:
Seeger (intro only) - John Deley and the 41 Players
Forever Believe - Audionautix
Deep Hat - Vibe Tracks
Rollin Back - MK2
Shoulder Closures - Gunnar Olsen
TFB9 - Vibe Tracks
Golden - Vibe Tracks
Foundation - Vibe Tracks
Forever Believe by Audionautix is licensed under a Creative Commons Attribution license: (creativecommons.org/licenses/...)
Artist: audionautix.com/
Copyright © 2018 Goran Dzambazov / Горан Џамбазов
You are welcome to share this video using only the original UA-cam link from this channel.
Any unauthorized copying, re-uploading, modification, alteration, editing and distribution of this material or parts of it is prohibited, unless expressly authorized by the copyright owner.
Please ask for written authorization / permission if you are interested to include parts of this video to your project. - Наука та технологія
I am speechless ! result is great, i really want to see some photography test
Thank you!
Unfortunately I did not include any photos in the video and I do not have some published elsewhere to show them to you as an example.
I want to build high cri and really bright rgb video or photography light, i am so confused. I couldn't decided whether i use '' high cri led strip '' or this kinda big chips. Led strips seems like really quality even though it says high cri
Thank you for answer btw 🙏
@@burak3259 , I'm not a professional photographer, but I think that high-CRI COB light (with a softbox, when needed) should be a better choice.
The project in this video is for amateur experimental photography, where the color rendering is not important (the color changing effects there are actually even desired and intentional).
Goran Dzambazov thank you for support and advices 🙏 i will definitely use cobb
Thank you for this video! The device looks spectacular :)
I have a question: Why do they produce LED sets like this with a common anode? That does not make sense! If anything, they should have a common cathode!
Thank you Dan!
I'll give you a more detailed answer on your question later today or tomorrow.
So here is my answer:
A very convenient solution for driving LEDs, 7-segment LED displays and various loads in general is to use an NPN transistor in a common emitter configuration working as a switch. In this configuration the emitter is connected to the ground and the collector is connected to one of the ends of the load. The other end of the load is connected to the positive rail of the power supply. If the load is an LED, the anode of the LED is the terminal that would be connected to the positive rail and also an additional resistor is included in series with it to limit the current.
In that configuration when the transistor is on (in saturation) the voltage between the collector and emitter is typically 0.2V and you can see the circuit as if the the second terminal of the load is connected to the ground, which means that the load is connected to the power. When the transistor is off there is no collector current and the circuit is open / the load is not connected to the power. Now, if you have to turn on and off independently the LEDs of an 7-segment LED display, all the anodes will have to be connected to the positive rail and the cathodes through resistors will have to be connected to the collectors of seven NPN transistors working as switches. The segment can be turned on or off by turning on and off the corresponding transistor. Having in mind this configuration it is logical that the manufactures will make all the anodes of the segments already connected together in the module, hence the common anode configuration. However, as you already know there is also a common cathode configuration for driving 7-segment LED displays or LED modules (although it is less common).
In addition to my answer I recommend you to read the following article as well for better understanding: en.wikipedia.org/wiki/Open_collector
Best, Goran
@@GoranDzambazov Thank you! Your response gives me quite a lot to learn and read up on.