5Amp Constant Current LED Driver
If anyone has any LED projects without on-board regulators, here's a cute 5A Constant Current/ Constant Voltage board I'm using for mine. So far I don't hear any RFI out of it, but will look on the an...
Forum Discussion
wa8yxm wrote:
5 amp is a lot to push through a LED less you are designing flash bulbs..And with multi-led Panels you would need matched led's and when one burns out the rest become flash bulbs.
But I see it is also a VOLTAGE regulator.. add a simple resistor and your LED's are very happy (one per led or with 5 volts one for every two led's).
A- If you look at the picture, those are LED ARRAYS. Each ARRAY had ONE switching regulator on the backside, since removed. There is not one LED array in existance that regulates every single LED on a board.
B- Of course they are matched.. Look at the board. And the other board looks exactly like this.
C- I explained the reason for no resistive current limiting, its simply not needed since I can dial in my current at the source.
One thing never mentioned here is that the current draw from an LED WILL change upward as it warms up, and it can roll right through the max current for the device if you are running it hard. I have that problem with LEDZILLA, and resistors wont fix that either, so the second board I bought will replace the V only regulator on it.
