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small power pcb design with auto battery switch over

I need somoene to design a pcb that will take power from a 12v 5amp DC adapter and will have 2pc 18650 lithium [login to view URL] batteries will be parallel connection . The batteries will be charged via the the dc source but will switch automatically to battery on power failure. The out put power will be be constant and linear 5v 2amp and 4v 2amp. I will have separate overcahrge and discharge protection circuiut for the batteries. These are meant to power up arduino with a number of microchips and gsp modules with gprs.

Kĩ năng: Thiết kế vi mạch, Kĩ thuật điện, Điện tử, Vi điều khiển, PCB Layout

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Về Bên Thuê:
( 2 nhận xét ) Dhaka, United States

ID dự án: #19642808

21 freelancer đang chào giá trung bình $113 cho công việc này

bijan01in

Hi I am interested to your project. I am familiar with electronics, microcontroller as well as PCB design by Eagle. Thanks.

$111 USD trong 5 ngày
(84 Nhận xét)
5.8
pcbdesign88vn

Dear you, I am a design engineer witj 7 year experiments using Altium. I have designed the charger for 1 cell 18650 using isl9220, so i will give you the best result. Brg!

$30 USD trong 3 ngày
(6 Nhận xét)
3.9
isurutech

Dear Sir, I would like to present my self as prospective candidate to do your project. I have sound knowledge and experiences in designing of electronic circuits and designing of PCB using FreePCB output of which could Thêm

$55 USD trong 7 ngày
(1 Nhận xét)
3.2
sascowala

Hi I've hands on experience with PCB and circuit designing using eagle and proteus. I've reviewed your project description and I am interested in doing this job. I will assure you about the quality of work, and your s Thêm

$30 USD trong 1 ngày
(3 Nhận xét)
2.7
asimzia95

I have a diverse experience when it comes to electronic circuit design, as i have a profound engineering background. Kindly review my PORTFOLIO, i can get the job done thanks!

$55 USD trong 1 ngày
(4 Nhận xét)
2.8
Waleed15499

U are in the right place sir It's easy job but i have some questions i can design it at protos and send u as gerber file at only two hr

$27 USD trong 1 ngày
(2 Nhận xét)
2.6
farispcb

Hello, I have a Master Degree in Electronics. I worked on many projects like Smart home systems in a research team at my workplace. Also, I am an Assistant Professor at University in Sarajevo (Responsible for course: Thêm

$111 USD trong 3 ngày
(2 Nhận xét)
2.5
sivaseshu31

Hi, I am a post graduate power electronics engineer and having very good industrial experience of 8+ years in R&D and project development. I am excellent welding power supplies design, Plasma ARC power supplies, high f Thêm

$1000 USD trong 30 ngày
(2 Nhận xét)
2.1
minienergy

General message: Dear Sir, Greetings from Turkey. I hope you are good. Let me introduce me. I'm Electronics Enginner who have 19 year experience. My experience is related to power electronics, hardware de Thêm

$35 USD trong 1 ngày
(2 Nhận xét)
2.9
Provi11

I have done many PCB designing projects and have relevant skill.i have designed PCBs for circuits that include relay. I have designed electric vehicle PCBs and you will get your PCB on time and with great accuracy.

$25 USD trong 10 ngày
(1 Nhận xét)
1.2
egazi

Hi, I am an experienced hardware engineer. This is a hot topic for me. I am working on charging 18650 type batteries for one of my client. I could help you on this project. We can discuss details if you send a message Thêm

$30 USD trong 5 ngày
(1 Nhận xét)
0.6
jpme19

Hello, how are you? I'm a mechatronic engineer that have used PCB and electrical circuits software, so I can do your project in a few days. I hope to contact with you and work in it. Thank you.

$27 USD trong 2 ngày
(0 Nhận xét)
0.0
albertbalacquit3

Proficient in Eagle PCB Cad Software, Creates PCBs with Standard & Custom design rules. Designs Power & Battery Design Circuits

$20 USD trong 7 ngày
(0 Nhận xét)
0.0
AzziOussama

Hello Sir I am a hardware design engineer. check my profile and portfolio for all the details about my experience. I have made the design you want before with different power levels you can checkout my interface boa Thêm

$45 USD trong 2 ngày
(0 Nhận xét)
0.0
etalhak

Hello, I am a student from politecnico di torino. I can help you with your project. It is just a sort of buck converter and that will solve your problem. Best regards

$55 USD trong 1 ngày
(0 Nhận xét)
0.0
Baba564

I have designed a similar system earlier for various applications in defence sector. 2 years plus experience in embedded systems company. I have dealt with 8 layers PCB with 1500 plus components. Completed layout of 1 Thêm

$55 USD trong 7 ngày
(0 Nhận xét)
0.0
vw7403153vw

Hello, I'm sure I can help you with the design of this board. I have a long experience on designing PCBs and projects of this kind for valuable customers like you. Waiting to hear from you soon, I remain, Sincerely, Thêm

$20 USD trong 10 ngày
(0 Nhận xét)
0.0
surgik

Good day! I can help Make a scheme, a list of items, printed circuit board. I will do everything in KICAD. Outputting GERBER and PDF files

$500 USD trong 12 ngày
(0 Nhận xét)
0.0
dezinerinsect

Lets start with design elegency. We are ready for the project. Please visit our portfolio https://www.freelancer.com/u/dezinerinsect?w=f Dezinerinsect is an innovative studio specialize in logo, brochure, flyer, il Thêm

$30 USD trong 0 ngày
(0 Nhận xét)
0.0
BEMII

Hi, I develop customer-specific products and know-how-related solutions. I’m willing to work on this project with you. Before giving any proposal I would like to have a clear discussion with you. Don’t pay too Thêm

$100 USD trong 1 ngày
(0 Nhận xét)
0.0