I need a circuit design probably based around a low power op-amp such as the TL084 to detect 50Hz mains.
1. Must be battery operated and give at least 6 months with no alarm activation.
2. Must have 12 inch range or better.
3. Must not false alarm.
4. On activation must sound an alarm for 3 minutes then stop unless 50 – 60 Hz is still present.
5. Must have a low battery indicator or battery test circuit.
A working prototype will be an advantage, but can build myself.
No agencies please!
13 freelancer bu iş için ortalamada 208$ teklif veriyor
Hi, Our design team is handling the design and development of various digital and analog electronic circuits. We can provide the solution according to your requirement.Please see the PMB. Regards, Geo