I have a design, wherein the circuit has a 24v input,
I drive a buzzer in a astable mode for a certain condition on 5v.
Also i drive a relay for another alarm condition. this relay is 12v(coil supply)+230vA/c 5A.
Now the problem i'm facing is I'm driving another relay from the exixting relay and some manual switches ahead of it.
But whenever there is a change in condition(switching action on 2nd relay). MY buzzer on the card start buzzing.
I tried using an optocoupler for isolation but that too isn't helping.
Please suggested some solution.
Regards,
Sid
I drive a buzzer in a astable mode for a certain condition on 5v.
Also i drive a relay for another alarm condition. this relay is 12v(coil supply)+230vA/c 5A.
Now the problem i'm facing is I'm driving another relay from the exixting relay and some manual switches ahead of it.
But whenever there is a change in condition(switching action on 2nd relay). MY buzzer on the card start buzzing.
I tried using an optocoupler for isolation but that too isn't helping.
Please suggested some solution.
Regards,
Sid