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small power pcb design with auto battery switch over

$10-30 USD

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Αναρτήθηκε περίπου 5 χρόνια πριν

$10-30 USD

Πληρωμή κατά την παράδοση
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.
Ταυτότητα εργασίας: 19642808

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16 προτάσεις
Απομακρυσμένη Εργασία
Ενεργός/ή 5 χρόνια πριν

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16 freelancers δίνουν μια μέση προσφορά $45 USD για αυτή τη δουλειά
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Hi I am interested to your project. I am familiar with electronics, microcontroller as well as PCB design by Eagle. Thanks.
$111 USD σε 5 ημέρες
4,9 (99 αξιολογήσεις)
6,4
6,4
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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 σε 1 ημέρα
4,9 (40 αξιολογήσεις)
5,4
5,4
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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 σε 3 ημέρες
5,0 (19 αξιολογήσεις)
4,7
4,7
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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 be used manufacturing professional level. Regarding your project, the designing of system is bit tricky. because to get out put of 5V and 4V, the input voltage range is very large. But anyhow I could design a circuit to fulfill your requirement. And also regarding the my biding value, your expected bid range is quite low with compared with your expectation and effort I had to put in to the designing. And also not forgetting freelancer fee we had to pay. Message me if you have any questions. Expecting a favorable reply, I remian. Isuru Athukorala
$55 USD σε 7 ημέρες
5,0 (3 αξιολογήσεις)
3,7
3,7
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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 σε 10 ημέρες
4,9 (8 αξιολογήσεις)
3,9
3,9
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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 σε 1 ημέρα
5,0 (8 αξιολογήσεις)
3,4
3,4
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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 satisfaction is my top priority. For further details kindly DM. Thank you!
$30 USD σε 1 ημέρα
4,4 (4 αξιολογήσεις)
3,1
3,1
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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 σε 1 ημέρα
5,0 (2 αξιολογήσεις)
2,7
2,7
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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: "Analog electronics"). I have a very good expirience with electronics, MCU, creating schematic, creating a PCB layout, power electronics, DC/DC converters .... I am ready for all types of cooperation. Best regards
$111 USD σε 3 ημέρες
4,7 (2 αξιολογήσεις)
2,5
2,5
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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, illustrations, poster, business card, stationary design, corporate identity, icon design, website design and development. We will work one o one with you to create unique product will allow your business flourish and establishing in 6 sigma companies 100% unique design concept. We will offer you unlimited revisions until you approve the design. Provide 2 – 3 initial design option Work until client gets satisfied. Offer 60 days free to charge design services Get high quality source files of the selected design ( fully editable file ) Money back guarantee.
$30 USD σε 0 ημέρα
0,0 (0 αξιολογήσεις)
0,0
0,0
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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, Sandro Guizzardi
$20 USD σε 10 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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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 board for fluidminer and gas detector that contains the same power system you want to make. I can make the schematic and the board for you in maximum 2 days. waiting for your respond Best regards Azzi Oussama
$45 USD σε 2 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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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 100 plus PCBs involved in 27 different projects (Power , control systems, PLC based , controller based , analog etc) very well equipped with Power electronics PCB (LEDs , Relay, passive elements, dc-dc converters , connectors such as molex,frc ribbon, yageo,etc ).. I feel I can do justice to your requirement.. I need a chance as I am new to Freelancing.. Note: If you are not satisfied I guarantee 100% refund.. If interested do contact me. I will be happy to help.
$55 USD σε 7 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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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 σε 2 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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Proficient in Eagle PCB Cad Software, Creates PCBs with Standard & Custom design rules. Designs Power & Battery Design Circuits
$20 USD σε 7 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0
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Good afternoon, My name is Matt Johnson and I am an Electrical Design Engineer located in Bloomington, MN. I have a degree in Electrical Engineering, I spent three years working as an Electrical Test Engineer for 12V automotive systems, and I have spent the past 5 years working as an Electrical Design Engineer for 12V automotive systems. I would be more than happy to help you with this project. What are the deliverables for this project? Do you need a PCB laid out or just a circuit schematic? Are the 5V and 4V power supplies already designed or are they to be a part of this project? Does the power to the 5V and 4V supplies need to be uninterrupted during the switch to battery power or can there be a slight delay?
$20 USD σε 7 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0

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Σημαία της UNITED STATES
holmes, United States
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Μέλος από Μαρ 7, 2017

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