Design a Battery management circuit

$30-250 USD

Completed

Posted

about 8 years ago

$30-250 USD

Paid on delivery

Hello, I need a pcb crircuit to load 4 38120s lifepo4 batteries from a 100w-12v solar pannel. the circuit must be able to provide power to two devices (5 v at 2A and 3.3 v at 0.2A) even during the charge. The board must include: - a low discharge protection for the batteries, - a footprint to plug an arduino pro mini and a rtc to open and close the output power depending on the date and the hour, - the mosfet driven by the arduino to open or close the output, - a on/off switch with 3 positions (OFF, ON with arduino control, ON without arduino), - a voltage sensor readed by the arduino I need eagle files gerber files, bom (xls + order ready to pay on Farnell). I need experienced freelancer in this field the work has to be done in 3 to 5 days max Please contact me for more details

Electrical Engineering

Electronics

Engineering

PCB Layout

Project ID: 10274368

About the project

13 proposals

Remote project

Active 8 yrs ago

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Awarded to:

@DaisyInovia

Dear Sir, we are a team of engineers. We do have experience in designing battery chargers and solar energy converters. We can provide you with the full design and prototype at a very competitive price and good quality. We are based in china and we are able to allocate you a french speaking engineer that will handle all your work. Kind Regards

$88 USD in 1 day

5.0

(3 reviews)

2.8

13 freelancers are bidding on average $269 USD for this job

@seshupower

Hi, I am a post graduate power electronics engineer and having very good experience in product design and development. I am excellent in SMPS, Battery chargers, battery management systems, Power Supplies, Embedded controller design for different applications, Inverters design from few watts to KW range using Buck, Boost, Buck -boost, Push Pull and H-bridge inverters. I am excellent in PCB designing using Altium , ORCAD 16.6, CAD INC, CADSTAR .I can do up to 12 layers meeting the voltage creepage and clearances and thermal requirements as per current ratings to meet UL and compliance standards. I understand your requirement and ready to work for you. Please contact me for further discussion

$333 USD in 5 days

4.9

(59 reviews)

6.7

@Anthony989

Hello, I am Anthony. I am working FULL TIME as freelancer. I have double degrees in Mechatronics and Applied Science fields. I have very good feedbacks on freelancer.com . Please check the link at the end and review my feedbacks. So you can get an idea of my work. I have the capability to guide you until the manufacturing stage. I have many contacts in China and can help you to setup there if you are gonna mass produce your product. https://www.freelancer.com/u/Anthony989.html Thank you Anthony

$155 USD in 3 days

4.8

(46 reviews)

6.4

@alexanderkf

Hello About me: I have 8 years of product design in the automotive industry. I am an expert in: - Dc - Dc converters - DDRAM memory's simulation and layout - USB charging - accelerometers , gyroscopes - GPS and GSM - LCD Displays - LED power calculation As a Layouter I have 5 Years experience. I am an expert in : - Power Dissipation Calculation - EMC Rules - Impedance Calculation - Manufacturing Rules I have made Layout for ARM processor. Work also with BGA footprint. I have done projects even on 10 layer. So I know how to build a layer stack up. As Layout and Schematic software I am an expert in Eagle, PADs, Zuken. As Simulation software for the Schematic I used LTSpice. Thank you for your time, Have a NIce Day, Alex.

$250 USD in 5 days

4.9

(23 reviews)

4.8

@joshuavaldes

I could do it in 3 days, but not for $250. This would be my first job on this website, so I need to make you happy :D

$1,111 USD in 3 days

4.9

(2 reviews)

4.3

@ElectronicsGuru1

Electrical Engineer doing my PhD research in the domain of Microwave and RF wireless sensors for ARAMCO Saudi Arabia. Having experience of more than 5 years in embedded systems in companies like Mentor Graphics, MicroTech Ltd. Also I have firm knowledge of control systems with control on PID controllers, digital design (sequential and combinational circuit designs), digital electronics (switching circuitry for power supplies). Besides project, I offer you free 5 days support even after completion of the project. Contact me for more details

$198 USD in 7 days