Hi! My first post. I have spent a while digging around here since I was pretty stuck on how to make my project for a "reasonable" amount of money and I am completely new to electronics.
I programmed a 16F84A to make patterns and everything worked great up to there! However, I want to take the TTL from the PIC and use it to control some much higher load sources. I kept coming back to SSRs since I knew relays from cars, but they were very expensive and big. This is what I came up (thanks to the search function here!!! ):
1. Take the 5V TTL and put it into a TLP250 optocoupler (Toshiba Photocoupler) ~$1.90
2. Take the 10-15V DC from my power source (aka a car) and send it to an LM317 (national semiconductor adjustable regulator) ~$1.00
3. Use the current regulated out from the LM317 to my load (3 luxeon rebels in series) $5.00x3
I would like to know if this will work. Thank you in advance!
p.s. sorry about the napkin-esque drawing here and please be gentle, this is my first serious project and I slept through my only two EE classes about 5 years ago :S.
I programmed a 16F84A to make patterns and everything worked great up to there! However, I want to take the TTL from the PIC and use it to control some much higher load sources. I kept coming back to SSRs since I knew relays from cars, but they were very expensive and big. This is what I came up (thanks to the search function here!!! ):
1. Take the 5V TTL and put it into a TLP250 optocoupler (Toshiba Photocoupler) ~$1.90
2. Take the 10-15V DC from my power source (aka a car) and send it to an LM317 (national semiconductor adjustable regulator) ~$1.00
3. Use the current regulated out from the LM317 to my load (3 luxeon rebels in series) $5.00x3
I would like to know if this will work. Thank you in advance!
p.s. sorry about the napkin-esque drawing here and please be gentle, this is my first serious project and I slept through my only two EE classes about 5 years ago :S.