I am needing to switch 7 high power circuits in three banks, and looking for the best way to do so. Each of the 3 banks will flash independently based on an Arduino output, but I am breaking each lighting element into it’s own branch of each bank (I can’t shrink or break up each element any further).
I would like to use a minimal number of components in doing this. I wasn’t sure if I could bridge pairs of a ULN2803 Darlington to function as three Q1’s, and have 7 separate Q2’s? Or if there was a more efficient way of doing this.
Note: These will be cycling states at a pretty aggressive rate, so a relay is not practical. Additionally, the clicking of a relay would be a problem.
Bank 1:
One set of 33 LED’s (2.5 amps)
One set of 33 LED’s (2.5 amps)
One set of 33 LED’s (2.5 amps)
Bank 2:
One set of 33 LED’s (2.5 amps)
One set of 33 LED’s (2.5 amps)
One set of 33 LED’s (2.5 amps)
Bank 3:
One set of 33 LED’s (2.5 amps)
Thank you.
