Devam Ediyor

Low Power 50 - 60 Hz Mains Detector

I need a circuit design probably based around a low power op-amp such as the TL084 to detect 50Hz mains.

Requirements:

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!

Beceriler: Elektronik, PCB Düzen

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İşveren Hakkında:
( 1 değerlendirme ) Bootle, United Kingdom

Proje NO: #736599

13 freelancer bu iş için ortalamada 208$ teklif veriyor

geobabu

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

in 20 gün içinde200$ USD
(6 Değerlendirme)
5.8
zszabo

Hi, Please see PM. B.R. Zoltan

in 20 gün içinde250$ USD
(2 Değerlendirme)
3.9
amitj9

Hi, I can work on this project as I have 19 years of experience in hardware design and embedded systems. Thanks

in 21 gün içinde220$ USD
(1 Değerlendirme)
2.4
BITSBYTES

Ready to work

in 30 gün içinde250$ USD
(3 Değerlendirme)
2.0
sunlitetech

please check your PMB. Regards, Arun

in 15 gün içinde250$ USD
(1 Değerlendirme)
2.0
SolutionFinder85

check inbox for details.

in 0 gün içinde250$ USD
(0 Değerlendirme)
0.0
suuu

i can even provide simulation prototype and pcb layout

in 20 gün içinde200$ USD
(0 Değerlendirme)
0.0
manishingale2000

Yes I will ready to provide you the completly tested working prototype of this project

in 5 gün içinde250$ USD
(0 Değerlendirme)
0.0
mniqureshi

chk my profile

in 2 gün içinde150$ USD
(0 Değerlendirme)
0.0
makinmakin

See details in MB.

in 10 gün içinde200$ USD
(2 Değerlendirme)
4.5
Manikoo

WOPRKED PREVIOUSLY ON PCB DESIGN

in 3 gün içinde200$ USD
(0 Değerlendirme)
0.0
Edivervizcay

Hello I work whit power system , I tink that I am capable to do this.

in 30 gün içinde180$ USD
(0 Değerlendirme)
0.0
MHM

I already hav the Detection circuit, any changes you wish will be made.

in 15 gün içinde100$ USD
(0 Değerlendirme)
0.0