Hell Everyone, I am working on a new lighting project that involves an array of 81x IR leds in a 9x9 grid. The leds I plan to use have a Vf of 1.2V @ 100mA. I wanted to run them at 90mA to conserve on power. I went with a series/parallel design where I have 9 leds in series with a current limiting resistor on the end of each strand of 9 leds, totalling 81 leds when its all done.
If I did the math right, I came up with 7.29A @ 12V supply. My request is if anyone is willing to point me in the right direction to construct, or even find, an appropriate power supply for the job. I don't think I can find one in the ratings required, so all help is welcome.
Thank you for everyone's time.
If I did the math right, I came up with 7.29A @ 12V supply. My request is if anyone is willing to point me in the right direction to construct, or even find, an appropriate power supply for the job. I don't think I can find one in the ratings required, so all help is welcome.
Thank you for everyone's time.