Hi guys, this time i´m working making an incubator, i found many schems about LM35 temp sensor but few to make what i want, this time the circuit has to keep close a realy wich turn on a lamp that will warm the incubator inside, once the inner space reach the desired temperature it has to turn off the bulb opening the relay and coming back once the temp reach a minimun setting, till now i´ve found a schem that in practice does what i want and with very few components wich make me doubt some times, working togheter beside the LM35 is the LM358 opamp, but i have a problem, i´m trying to run the circuit with 6volt the relay is 6volt too, but the drained current is to small i guess to close the relay right, i mean i dont hear a nice clic in the relay, i´ve did try with 12 volts and still the same, probbably there is something wrong in the circuit or am i using wrong pieces, attache is the schem for evaluation, i´ll appreciate any advice or help you guys can give me, thanks in advance anyone, cheers.
i´m using a 2n3906 instead tip122.
i´m using a 2n3906 instead tip122.