В работе

Microcontroller for smart charger - preferable PIC16

The smart charger allows a user to switch the charge process of e-bike lithium batteries off earlier: at 40% (winter storage - degradation is minimal), 60% - 70% - 80% (save lifetime and decrease driving range) and 100%.

Switching off takes place based on the voltages that correspond with the 4 "save" positions. As this is not 100% accurate, the switching points are recalculated by measuring the charge energy.

I have done hundreds of projects in the cross-fields of power electronics (charging - DC/DC conversion), embedded software and data communication. My long term partner retired so I am looking for a new free-lancer to take over.

Proven experience will be a condition.

The attached documentation explains the details. The preference for PIC is because the hardware prototype is available, but when there is a good reason to change this is acceptable.

Квалификация: Схемотехника, Электроника, Микроконтроллер, Разводка печатной платы

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О работодателе:
( 1 отзыв ) Mae Ai, Thailand

ID проекта: #18733466

Поручен:

ShunJohn

Hello. Thanks for posting this project. I am an expert having rich experience in schematic circuit and PCB layout. best regards.

€300 EUR за 10 дней(-я)
(12 отзывов(-а))
5.2

23 фрилансеров(-а) в среднем готовы выполнить эту работу за €586

microembedded

hi there we are a team of electrical engineers. we have worked of man Li-ion battery monitor and charge controller designs. we have reviewed the document. we require you to share with us the hardware schematics of your Больше

€750 EUR за 20 дней(-я)
(27 отзывов(-а))
6.3
hash92PCB

Hello, I would like to work on your project and I have a couple of questions to ask as well, please contact me. Regards.

€750 EUR за 14 дней(-я)
(8 отзывов(-а))
4.9
DevStar925

Hello sir, how are you? I am an Electrical Engineer with the areas of expertise in Microcontroller, Embedded System, Zigbee, BLE, and firmware development for systems. I believe that my experience and skill in this Больше

€500 EUR за 10 дней(-я)
(1 отзыв)
4.2
Tomorrow1201

Hi there. I offer you the services for PIC designs. I just completed one job in PCB/ PIC. I am new on freelancer site, but I am designer expert with 10+ years of experience in Circuit designs, PCB designs, PIC softwa Больше

€700 EUR за 10 дней(-я)
(5 отзывов(-а))
4.4
onpost

I have been working as an embedded programmer for more than 10 years. One of my latest projects was a USB battery charger. I also worked with PIC MCUs so they are not unfamiliar to me. Some more details about the proje Больше

€550 EUR за 10 дней(-я)
(9 отзывов(-а))
3.8
CometJu

Hi, I have read your project description carefully. I have worked with microcontrollers(PIC, AVR, ARM) for 6+ years and have enough experience. I think that my professional knowledge and experience will provide you Больше

€460 EUR за 7 дней(-я)
(3 отзывов(-а))
2.9
petteriaimonen

Your project description is clear and the charging method you describe is reasonable. I have experience in building my own e-bike battery packs, and understand how the charging and balancing works. I have experience in Больше

€750 EUR за 30 дней(-я)
(1 отзыв)
2.8
CreateMeNow

Hello, I was looking through your post and I thought that I would be an excellent fit for your project. I am an inventor and engineer, with more than 8 years of experience, 5 patent applications in my name, and over 15 Больше

€444 EUR за 10 дней(-я)
(1 отзыв)
2.5
sivom

Hi I have worked in pic16f/pic18f using mplab ide and ccs picc compiler. Is the software available and update needed or develop from scratch Will you provide hardware for development? Relevant Skills and Experience Hi Больше

€500 EUR за 30 дней(-я)
(4 отзывов(-а))
2.6
theorotica

I am an Electronics Engineer. I graduated from one of the tops the universities in Turkey. Middle East Technical University. I am working 10 years in the PCB design Industry in one of the biggest defense companies in T Больше

€300 EUR за 7 дней(-я)
(1 отзыв)
1.6
SuptoRahman

Hello sir, I can write your smart charger program for PIC micro controller within 48 hours from now. Let me introduce myself by my work and efficiency. I have a real passion regarding micro controller and love to pla Больше

€250 EUR за 2 дней(-я)
(1 отзыв)
1.3
Bharat8133

Dear i have experienced to developed different type of electronics, embedded and software project. I have started to worked on freelancer before one month. I have also developed two axis controlled card using pic16 Больше

€555 EUR за 10 дней(-я)
(1 отзыв)
1.0
blueskyeagle0906

Hello. I'm very interested in your work. I have many experience in analog and digital circuit design. I am experienced in PCB design about high speed signal, multi-layer design up to 16 layers, DDR routing, EMC des Больше

€250 EUR за 10 дней(-я)
(1 отзыв)
0.0
tpfayis2

I have designed many circuits like both the analog and digital circuits, my designing tool are ORCAD CAPTURE CIS and ALTIUM, Done firmware for many microcontrollers like ARM,PIC,ARDUINO,RASPBERRY PI,ATMEL sereis etc. U Больше

€555 EUR за 10 дней(-я)
(0 отзывов(-а))
0.0
slava737

I have experience on a similar device. I would also like to understand what type of work you expect for the specified amount? Development of the scheme, the selection of electronic components, the trace of the printed Больше

€777 EUR за 20 дней(-я)
(0 отзывов(-а))
0.0
saasauto

Hi, I have 14 years of experience in Automotive embedded system and i would make your work more comfortable and maintainable. If you are interested, I can share my detailed profile and will have a discussion Regards Больше

€722 EUR за 22 дней(-я)
(0 отзывов(-а))
0.0
etalhak

Hello, I study electronics at politecnico di torino, I would like to help you with your project. I have experience for the topics as follows, C/C++ programming. RF/MMW Antenna, coupler, power divider, phase shifter Больше

€777 EUR за 10 дней(-я)
(0 отзывов(-а))
0.0
fvdm

Hi There Thank you for the attached document. It is very thorough. Do you need the PIC to control the charger unit, or do you want the charger unit to be designed with the PIC? I can help you with this project. Больше

€750 EUR за 30 дней(-я)
(0 отзывов(-а))
0.0
Adrianopl

Hi, I have good experience with power electronics and firmware development, I'm an user of microchip MPLABX and XC compiler, but I can work with other microcontrollers if needed, for schematic and PCB I use altium d Больше

€750 EUR за 60 дней(-я)
(0 отзывов(-а))
0.0
consultotal

I am Scientist, electromechanical engineer, I can help You with specialized designs, command over digital simulations and written reports. I have more of five years of experience developing science and engineering wor Больше

€750 EUR за 10 дней(-я)
(0 отзывов(-а))
3.1