Opto Isolator 3.3v -->opto-->24v Relay
Hi,
My electronics knowledge is.. limited.. at best, until i google'd it i didn't know what an opto-isolator was.
Anyway my problem. I have the following components;
control board, 1 PIN output @ 3.3v (dont know mA)
24v timer relay Link here
I can not fire the Relay from the 3.3v PIN, but it does work from a 5v supply, from the same board. I've been googling for 2 days but just can't find/understand an opto that would provide me with the voltage-shift I require to fire the relay. (The opto output could be anywhere between 5v-24v higher the better!)
P.S the circuit needs to be protected, hence 'using' an opto.
Hi,
My electronics knowledge is.. limited.. at best, until i google'd it i didn't know what an opto-isolator was.
Anyway my problem. I have the following components;
control board, 1 PIN output @ 3.3v (dont know mA)
24v timer relay Link here
I can not fire the Relay from the 3.3v PIN, but it does work from a 5v supply, from the same board. I've been googling for 2 days but just can't find/understand an opto that would provide me with the voltage-shift I require to fire the relay. (The opto output could be anywhere between 5v-24v higher the better!)
P.S the circuit needs to be protected, hence 'using' an opto.
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