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Solar LiPo Charger board

€30-250 EUR

W trakcie realizacji
Opublikowano ponad 4 lata temu

€30-250 EUR

Płatne przy odbiorze
Wanted is design, schematics, PCB layout and working prototype of a solar LiPO charger board. Documentation of all used parts as well as schematics and layout has to be delivered along the gerber files, a BOM list and a working prototype. The specs are as follows: Minimum requirements: - 1V .. 3V input from a photovoltaic cell - charging of a single cell LiPO battery 150mAh .. 500mAh capacity - battery charging state can be obtained - battery fuel gauge information can be obtained - battery overcharging protection - battery disconnect function for battery protection at low voltage level - ultra low quiescient power consumption - stable 3.3V output from Vin or battery (automatic source selection) - cutoff of output to protect battery and wait for recharged battery - automatic power output as soon as battery is recharged to certain level - additional 5V micro USB charging input Optional requirements - wider input range (max 0.5V .. 5V) - wider charging range (max 100mAh .. 1000mAh capacity) - MPPT charging is an absolute plus (i.e. SVP1050, BQ25570 or similar) - BOM sum <15 USD at 1K - minimal space requirements - ideally designed as breakout board for ESP8266 (WeMOS D1 mini) or ESP32 (ESP32 D1 mini) board
Identyfikator projektu: 20407149

Informację o projekcie

15 ofert
Zdalny projekt
Aktywny 5 lat temu

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15 freelancerzy składają oferty o średniej wysokości €370 EUR dla tej pracy
Awatar Użytkownika
Hello, We are a Turkey based company and we offer product design & development, electronic schematic & PCB design, plastic injection molding and mass production services to our customers. We can help you to design and manufacture your product. Please contact me to talk more about your project. Best Regards Ates Gokdemir Nijiworks Nothing is impossible, just imagine!
€1 000 EUR w 20 dni
4,9 (69 opinii)
7,7
7,7
Awatar Użytkownika
Guten Tag! I have several ready-made solutions that can be prototypes for solving your problem. First, I have a few of my own designs of controllers for solar power plants. Secondly, I have several ready-made low-voltage voltage converter designs. I'm a little confused by the required cost of the components. I am afraid that we will be forced to focus on suppliers on AliExpress, not from European stores (Digikey and the like). But we can discuss this separately. The price that I indicated is only the cost of the design and does not include the cost of the prototype. In any case, I will be glad to be useful to you. Vielen Dank für Ihre Aufmerksamkeit. Mit freundlichen Grüßen, Dmytro.
€250 EUR w 12 dni
3,9 (22 opinii)
5,6
5,6
Awatar Użytkownika
i have more than 6 years experience in embedded system with PCB design with eagle and altium design software and i have already made a esp32 with battery charging circuit . so i can do your job within a time limit with your satisfaction.
€750 EUR w 10 dni
4,8 (6 opinii)
4,6
4,6
Awatar Użytkownika
hi sir. we are good to design pcb for batery charger with solar panel ,, i am glad to here with you,With 10 year of experience in product design field with 5 different manufactured industry and complete more than 100 project.I am capable to do this task very precisely. its my pleasure if you give me chance to show my capability below is the some glimpse of my project in machine design fields pr
€140 EUR w 7 dni
4,0 (5 opinii)
3,5
3,5
Awatar Użytkownika
Hello, i can design this board and smt then send to you. please chat with me. i am from shenzhen china. i have my own lab.
€200 EUR w 7 dni
3,5 (6 opinii)
3,8
3,8
Awatar Użytkownika
Hello, I already have all electronic parts ... so I will give you one tested solution which will develop for you around your requirements. Will be more milestones and after each milestone you will release the current amount as acceptance. For more details we can continue the discuss on freelancer chat... Thanks
€350 EUR w 10 dni
4,2 (1 opinia)
2,8
2,8
Awatar Użytkownika
Hi, We are a professional Manufacturing service that has extensive experience in CNC machining, 3D Printing, Injection Molding, Laser Cutting. We work with all materials and to all finishes including prototyping & end-product consumer retail goods working only the very best in industry standards to fit all budgets. If you do not have the CAD file we can create them for you with our team of engineers & product designers and then get them to manufacturing. Let me know if we can be of service; and please let me know if your interested in photos of our past work! many thanks, Conor We are experts in bringing products to life! Please message me to see photos of our past work.
€155 EUR w 5 dni
0,0 (0 opinii)
3,1
3,1
Awatar Użytkownika
Hallo, I have good experience in designing PCB and find project description suits my skill set. I have recently developed a power supply circuit for different application and find my self in position to work on this project. I have been using Eagle PCB and would be able to do it with KiCAD as well based on your requirement. We have all facilities here to help with prototyping and testing your hardware. I am currently residing at Germany, so would find it easier to access and collaborate with regular feedback and reviews. Cheers!
€230 EUR w 20 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
I am having 28+ years of rich R&D experience in Analog design, Embedded Hardware systems, FPGA based systems, Circuit design, Validation, Microprocessor/ Microcontroller based design Analog & Digital hardware design, Logic Design & Synthesis/Simulation, high speed board design, System design, Project management, Certifications & development for Consumer, Industrial and Defense products. I have strong Technical skills, Innovative ideas and transforming into products to increase revenues I have filed several Patent ideas in my earlier company and was successfully granted one of the patents . My goal on working on any project is always focused on, how can we make it unique. My most important soft skill I consider, is being creative. With this mindset I’ve always tried to incorporate innovative systems in all my projects.
€213 EUR w 69 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
Hi there! This is Javier Alcina. An experienced electronics engineer with more than 15 years designing electronics attending to ultra low power consumption. I can make a design for you according all your specs (required and optional) without fails in a professional way. Design files, Gerbers, BOM, assembly instructions, test report for production, and user manual will be delivered. Please, contact me for more detailed information. Regards
€500 EUR w 10 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
Hello, I want to offer my candidacy for solving your task. I have a lot of experience in electronics. An architect and engineer with extensive experience in the development of digital electronic devices from idea to design, architecture, implementation, manufacturing, commissioning and product certification, Knowledge of quality control and testing procedures. Expert in manufacturability: design optimization for optimal assembly process. Highly experienced in large-scale technically complex enterprise projects with many stakeholders involved. Experienced in technology assessment and validation towards business requirements. The engineering skills include a number of platforms, tools, methods and technologies: IoT hardware/software, Altium designer, P-CAD, AutoCAD, Proteus, Autodesk mechanical, Corel draw, C/Embedded C (software for microcontrollers), C++, Assembler, Java, Python, AVR, STM32, PIC, ESP32 and many other Microcontrollers and SoC, 1-wire, SPI, I2C, CAN, RS232 and other interfaces, Acceleration, Pressure, Magnetic field, Gyro sensors solutions (humidity, temperature, motion etc.), Communication interfaces and protocols, Unmanned system solution, Smart metering, Mixed-signal design, Battery Management System e.t.c.
€340 EUR w 8 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
I currently have similar schematic meet your requirements (that use TI DPM charger). I need to modify them to work the best for your case. I am a professional PCB designer and embedded control engineer who always looking for interesting project to do.
€140 EUR w 7 dni
0,0 (0 opinii)
0,0
0,0

O kliencie

Flaga GERMANY
Bremen, Germany
4,9
9
Zweryfikowana metoda płatności
Członek od kwi 2, 2016

Weryfikacja Klienta

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