Hi Everybody,
I'm a newbe to this forum, Electrician by trade but dabble with Electronics as a hobby. I am making LED post cap lights for the posts on my deck. I intend to put 3 LEDs next to each other on the side of a post cap. The LEDs are 5mm white thru-hole type with a Forward voltage of 3.2vdc and a Forward Current of 20ma each. My supply will be 10.28vdc and I will be wiring each post in parallel with each other to maintain a constant voltage. Lets use just two posts (19 total) one post will utilize 6 LEDs and post two will utilize 9 LEDs. 15 LEDs exactly can be Used. According to ohms law using 3 LEDs with a 39 ohm resistor in series with them will provide an array of 15 LEDs. My question is: can I put a Parallel array of 6 LEDs in PARALLEL with another parallel array of 9 LEDs and so on for 19 post caps? How will the current from one array effect the other? and what would the current total for the circuit be? Thanks in Advance for the answer.
I'm a newbe to this forum, Electrician by trade but dabble with Electronics as a hobby. I am making LED post cap lights for the posts on my deck. I intend to put 3 LEDs next to each other on the side of a post cap. The LEDs are 5mm white thru-hole type with a Forward voltage of 3.2vdc and a Forward Current of 20ma each. My supply will be 10.28vdc and I will be wiring each post in parallel with each other to maintain a constant voltage. Lets use just two posts (19 total) one post will utilize 6 LEDs and post two will utilize 9 LEDs. 15 LEDs exactly can be Used. According to ohms law using 3 LEDs with a 39 ohm resistor in series with them will provide an array of 15 LEDs. My question is: can I put a Parallel array of 6 LEDs in PARALLEL with another parallel array of 9 LEDs and so on for 19 post caps? How will the current from one array effect the other? and what would the current total for the circuit be? Thanks in Advance for the answer.