Do you know a simple, inexpensive, elegant way of boosting 24V up by just 0.8V, to 24.8V (between 24.5V and 25V)?
My current goal is to power LED appliances but my question is not specificaly related to LEDs (see note below). The question is what would you do when you have a regulated 24V power supply and you need between 24.5V and 25V, and use it with a large amount of power, up to 10A for example?
Is there another way of boosting voltage when the voltage increase is small?
I'm looking for a solution with few parts, and if possible without expensive switch controler. The project is for small production volume (a few hundreds pieces), That's why I want it inexpensive and small, holding on a small size PCB.
- The power supplied is already voltage regulated and stable.
- The desired voltage increase is just 4%, betwee 0.5 and 1V.
- It should sustain 8 or 10A continuously, safety margin included.
- Current may vary between 0 and the above mentioned maximum.
- The output voltage must remain stable within the 24.5 and 25V range no matter how much current is drawn. (Very short interruptions can be tolerated or solved by adding a capacitor if needed)
- Different power supplies, albeit all rated 24V, may be used.
- They may have different maximum ampere ratings (3A, 5A, 8A...) but will always be constant voltage supplies.
- They may be build by different manufacturers, all using common practices, but possibly with slightly different schematics and qualities.
- The boosting device could be sometimes placed at some distance from the power supply, sometimes right next to it, but always near the load.
(Note: I understand that some poeple feel unconfortable with the idea of powering LEDs without knowing the specifications in details, and I'm not against talking about it and providing more informations. And I do appreciate their contributions. Yet, I would like to focus on the methods of boosting voltage as described above. We can talk volumes about LEDs and it will quickely stray off topic.)