Hello, everyone, I have a question about my solar tracker circuit. I finally got it to work as far as bench testing goes, i.e. I measure the voltages at each 741 out put and while the led I'm looking at is off it reads @.25 volts, and when it's on I read 3 volts. I chose to use 2n2222 transistors because those are the ones I successfully drove my relay with and I understand they trigger at@1.2 volts. The relays I'll be using are the RS275 005 as the package says it can handle up to 120 volts @12 amps but triggers at only 7 to 9 volts (forgive me if I typed that wrong I'm a newb.) What I'm wondering is: How to pick the appropriate motor. I found a nice 3 to 18 volt gear-head motor at electronics goldmine I was thinking of ordering, but I wonder if I can just go to the junk yard and get an old seat or window motor from a car.
Hope I asked this question properly, I had NO idea there were so many variables!
My goal here is to aim a parabolic trough at the sun and just how big I build it depends on this circuit and what it (mainly the relays)can handle.
Oh....I'm totally open to suggestions as far as the circuit goes. And yes I realize a true comparator would be better but I haven't learned how to use it yet..
Hope I asked this question properly, I had NO idea there were so many variables!
My goal here is to aim a parabolic trough at the sun and just how big I build it depends on this circuit and what it (mainly the relays)can handle.
Oh....I'm totally open to suggestions as far as the circuit goes. And yes I realize a true comparator would be better but I haven't learned how to use it yet..
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