All Questions
6
questions
1
vote
3
answers
78
views
For a high powered LED loads, is a buck or boost converter more efficient / simpler?
I have a 3 high powered LEDs hooked up into a strip to for the load. For simplicity, I am going with a constant voltage driver. The load can be hooked up in 2 configurations:
Config 1:
3 Green LEDs (3....
- 407
1
vote
1
answer
244
views
Buck Boost Driver to switch 2 LED chains
simulate this circuit – Schematic created using CircuitLab
I'm working on a project to turn 2 LED strings (each containing 6 HB LEDs).
Here is my question.
The Buck Boost driver I'm using is ...
- 161
2
votes
1
answer
599
views
Extending battery life: Calculating advantage of adding more batteries
I have a small 3 volt device with an MCU and 8 LEDs that I'm currently powering by two AAA batteries connected in series. With fresh batteries, I start out with about 3.2-3.3 volts and get very good ...
- 1,835
0
votes
1
answer
344
views
LED array at high current or high voltage?
Is it more efficient to drive LEDs at a high current and low voltage, than a lower current and high voltage?
I'm in a situation where I have to design an LED driver for a custom CoB emitter, so can ...
- 1,315
0
votes
1
answer
187
views
Buck and Boost drivers for LED
Many of the newer bike lights use LEDs. Although I understand basic electronics it has been some years since I learned electronic theory. Although I understand the basics of buck and boost drivers I ...
- 1
2
votes
1
answer
495
views
Driving LEDs with Specific drivers or buck/boost regulation
I have a circuit that is driving 3 x LED rings and an Arduino/ATmega @ 5v through a standard 5v regulator.
Each LED ring draws 11v @ 300mA and is PwM switched using a 2n7000 Mosfet from the ATmega's ...
- 55