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I am working on a battery powered device that will use an array of RGB LED's. It is one large segment (well, it will be split into strings obviously but the whole panel will always be just one color and intensity). I have a microcontroller inside and will use PWM to do color mixing.
There are...
Thanks for the information on that regulator, Orson. I was looking only at regulators which had a built-in FET switch, and I realized when I saw your post I was ignoring a whole group of suitable products. I think I will switch the design over to the LM5085 and see how I do with it.
Thank you...
Ahh, that makes sense on why the diode is there. Thank you for your replies!
As for the circuit, when I was looking into the issue, it seems that for automotive use, the circuit must be able to handle voltages of 80V or sometimes higher, for up to several hundred milliseconds. There is also...
So I have done some more testing, and have been mulling this over quite a bit, and doing some searching online for solutions.
It seems there are many solutions out there, and some (expensive) IC's which perform this function.
It also seems there are simple solutions using transistors or FET's...
Thanks for all the replies. First off, obviously I am not an engineer by education, so I am learning as I go, but very happy to learn, even (and especially) from my mistakes :)
As for how I know - well, I was having some issues with another boards last year with Alpha Omega switcher regulator...
Hi guys,
I am using an Alpha Omega AOZ1021 switching buck regulator to make a 7.5V supply from a 12V source. This drives a series of LED's and has a max current draw of about 1.35A at the output.
The problem I am having is the regulators are dying on me. I connect the power supply, and...
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