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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.

Evner: Kredsløbs Design, Elektrisk Ingeniørarbejde, Elektronik, Microcontroller, PCB Layout

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Om arbejdsgiveren:
( 2 bedømmelser ) Dhaka, United States

Projekt ID: #19642808

21 freelancere byder i gennemsnit $113 på dette job

bijan01in

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

$111 USD in 5 dage
(84 bedømmelser)
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 in 3 dage
(6 bedømmelser)
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 Flere

$55 USD in 7 dage
(1 bedømmelse)
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 Flere

$30 USD på 1 dag
(3 bedømmelser)
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 på 1 dag
(4 bedømmelser)
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 på 1 dag
(2 bedømmelser)
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: Flere

$111 USD in 3 dage
(2 bedømmelser)
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 Flere

$1000 USD in 30 dage
(2 bedømmelser)
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 Flere

$35 USD på 1 dag
(2 bedømmelser)
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 in 10 dage
(1 bedømmelse)
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 Flere

$30 USD in 5 dage
(1 bedømmelse)
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 in 2 dage
(0 bedømmelser)
0.0
albertbalacquit3

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

$20 USD in 7 dage
(0 bedømmelser)
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 Flere

$45 USD in 2 dage
(0 bedømmelser)
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 på 1 dag
(0 bedømmelser)
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 Flere

$55 USD in 7 dage
(0 bedømmelser)
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, Flere

$20 USD in 10 dage
(0 bedømmelser)
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 in 12 dage
(0 bedømmelser)
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 Flere

$30 USD in 0 dage
(0 bedømmelser)
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 Flere

$100 USD på 1 dag
(0 bedømmelser)
0.0