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LiFePO4 BMS

$250-750 USD

Closed
Posted over 7 years ago

$250-750 USD

Paid on delivery
The goal of this project is to monitor, display info, and protect large LiFePO4 battery packs using Linear's LTC6802IG-2 chip. A total of two (2) PCBs will have to be made. A host PCB which will contain an attiny2313 and a radio transmitter, and a client pcb which will contain the LTC6802IG-2. This way multiple client PCB's can be connected to monitor and protect battery packs with large cell counts. The radio transmitter will interface with the EZ430-CHRONOS-433 watch from TI. The watch will display information sent by the LTC6802. LTC6802IG-2 <--> ATTiny2313 <--> Cronos 433 Extra details: You are in charge of making and delivering a tested and working prototype. When complete I would like to have the finished prototype, parts list (from major North American distributers (Mouser, Farnell, Digi-Key) , gerber files, and the source code. Please include the costs of materials, fabrication and shipping in your bid. Happy bidding.
Project ID: 11532418

About the project

8 proposals
Remote project
Active 7 yrs ago

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8 freelancers are bidding on average $821 USD for this job
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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 high frequency transformers design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.
$777 USD in 25 days
4.8 (57 reviews)
6.7
6.7
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Hello there, My name is Will Hewitt, an engineer from Nelson, New Zealand. I have built up a wide variety of skills in various disciplines of engineering over many years. My main skills include: - PCB Design (EDA) in KiCAD Package (~2 years) - CAD Design in FreeCAD Package (~2 years) - Embedded Systems Programming and Communication (Atmel/AVR Processors, Arduino, IoT) - iOS Development with Swift (~1 year) - Android Development (~2 years) I have developed BMS systems before, and therefore believe I am a suitable engineer for your project. I can show you limited examples of my previous work (NDA's are still standing on some of it) but can hopefully give you a good enough insight into my abilities. If you wish, you can contact me here or on Skype (willsonhemitt) and we can discuss your project a bit further. I also have long term experience with the ATMega chips. Without more specifications I can't give you a time estimate, but as you already have components selected, I can have this sorted for you within a very short timeframe. Please don't hesitate to contact me further. Thank you for taking the time to read my application, I hope to hear from you soon! Regards, Will Hewitt
$1,000 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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I have 15 years of Hardware Design Experience. Have worked on products involving micro-controllers and radio frequency devices. Have also been involved with Battery Management for the end products developed
$1,111 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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I am very good to get your job done at very low price. I am expert in PCB design, Schematic design, PCB manufacturing, Programming. In short I can provide a complete solution from an Idea to the product.
$350 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Hello there, We are a group of embedded systems enthusiasts called Topor and we like a lot the idea of your project. Therefore, we thought to give it a try and to help you with the project. Since we are good at what we do, we managed to estimated a little how much it will take (and cost) each step of the project. Besides the milestones below, we have prepared a detailed quotation including the work package split per requirements, equipment cost and so on. Even more good news: we are working with JIRA and Confluence as development platforms, along with Gerrit for code review. This way you can always keep an eye on the progress, comment and suggest new approaches to our work. In a nutshell: you are in control. We are really looking forward to hearing from you and we can't wait to send you the detailed description of our quotation! Have a nice day and talk to you soon! Best regards, The Topor Team.
$800 USD in 35 days
0.0 (0 reviews)
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India
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Member since Sep 15, 2016

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