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 [url removed, login to view] see the PMB. Regards, Geo