Build your own power supply
Article on Instructables Power Supply: During the development of our numerous LED products, we were once again short of a laboratory power supply, so the question arose: buy or build your own: What a question, build it yourself of course
With laboratory power supplies, it seems that you simply always have 1 unit too few. When we were once again faced with this dilemma, we were about to buy a new power supply until a colleague said: “It would be fun if we could build one ourselves for our exact needs!”
The work of persuasion was obviously done with this sophisticated rhetorical masterpiece and we began with a specification sheet and subsequent research.
This also gave rise to the idea of documenting the project accordingly and making this available , including building instructions and other data.
We decided to use the do-it-yourself platform Instructables. This platform – or rather the users there – are simply amazing! The things that people put online there are simply inspiring and the constant “open in new tab” can quickly push you to the limits of your own RAM memory.
We then decided to use a 3*250W power supply with 50V/5A each (our dimmers work up to 48V, for example) with constant voltage and constant current (did you know that LEDs are correctly powered by constant current and not constant voltage? Current and not const. voltage? More on this in our LED tutorial). We used a Joy-it module for this and can also configure each channel via the USB interface and even run U/I characteristics. The last point in particular aroused our interest in automated test environments and since this lab power supply is now the favorite power supply of the entire team, we are once again one lab power supply short…
Greetings with power, the makers of Emilum
We hope you enjoy rebuilding it (also in a reduced version), you can find the article about our power supply here:
More Maker projects
Are you a maker through and through and your interest doesn’t end with one project? We would be happy to show you more of our projects here:
Know-How
If you sell products, you should also provide know-how. Below you will find our collection of articles(LED tutorial, Watt was yesterday, …) and if you have any other suggestions for the knowledge database, just email them to us.
LED products
We are passionate about light, especially light-emitting diodes. In this category we present some of our products for home & garden.
The focus here is of course on the smart home, but our products with open standards can be used in a variety of ways:
Other interesting categories:
Forget the days when a spotlight simply produced light. Our technically sophisticated products offer many functions on request and adjust the lighting mood exactly as you want it. Quality is our top priority, so you no longer have to worry about changing light sources.
We offer this high quality at a fair price. See for yourself here:
Our LED Stripes are the “Swiss army knife” of lighting. They are perfect for indirect lighting, under-cabinet lighting in the kitchen (pay particular attention to a high colour rendering index: CRI), effect lighting or for retrofitting and optimizing your existing lighting. Our many years of industry expertise in component selection allow us to proudly offer you TOP products at an unbeatable price.
Are you interested in dimming 24V LED spots and 24V LED strips in addition to decorative luminaires to create brilliant light? Whether monochrome, ColorControl (from warm to cool white) or full color (RGBW), you will find all the necessary information and products here. Further details on this topic and the important short-circuit detection (no fuse required) can be found here:
