Selecting the power supply
Selection of the power supply (read= power supply):
Electronic quantities and dealing with them in practice does not always work. It is not the intention that every person should learn a trade that does not provide a living and is not part of their hobbies.
1. Correct voltage. If the product requires 12 V, it does not fit a 5 or 24 V power supply.
2. Sufficient power. The power supply must provide at least the maximum power taken by the load. Greater power is not a danger, but there is no point in paying for it if you can do with the smaller ones. A 5 A power supply is not required for a couple of little LEDs. Overload should not be put on, the chipper is constantly pushing to full speed and the service life is reduced. It is recommended that the rated power of the power supply should be at least 10-20 higher than the maximum load.
3. Installation location. All ac adapter models are suitable for the dry room. If you hide the power supply behind the panels, install it on a terrace or in a moisture-prone area, choose the IP66/IP67 model, which is designed for demanding conditions. The recommended ambient temperature for power sources is max.40°C. 4. Connection method. Appliances with a plug ready are connected to the wall socket. Do not cut off the cord. IP-protected devices have fixed power cables, installation is done directly into the terminal box or by plugging in the plug, thus plugging it into an electrical outlet.
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End credits
“One of our customers presented a strange theory as a fact and said he had read the information on a competitor’s website.
The power supply power should be well overrated according to that guideline when, for example. very long wires go on the tape. The author has got it completely backwards. Or maybe he writes on the basis of a belief ?
In short, this is what it’s all about: there is a voltage drop across the conductor, the longer the conductor, the greater the loss at the other end. Although the LED strip is not a resistive load, it behaves in many ways as if it were: the lower the operating voltage, the lower the power it puts out. And light output is usually expected from an LED strip. As you look ahead, the more the voltage drops, the less power the ribbon delivers, so the lower the current. This is not helped by a high-powered power supply, on the contrary, in reality you could do with a smaller one, but you rarely end up with one. The only help would be a higher voltage power supply, but then we are talking about a non-standard value, e.g. 26 or 28 V, or even better, an adjustable power supply. Another help would be a voltage regulator, which balances the voltage to a constant, despite fluctuations in the input voltage, but a high-power regulator is quite valuable. So with high loads, you try to place the power supply close to the strips or increase the thickness of the wires.”