Design a Li-ion multiple battery charger

A proposal has not yet been provided

Hello sir I am interested to your project. I am familiar with electronics, PIC microcontroller and as well as PCB design by eagle. Thanks.

Dear Valued Employer, My name is Martin Botsov and I am an engineering physicist with extensive experience in the field of circuit design, circuit prototyping and PCB design. As I understand from the project description, you want to develop a custom Li-Pol charger and tester which should be able to charge a specific type of mobile phone battery up to 40%. So, without further ado here's how the workflow would look like, if you happen to choose me as a partner for your project: 1. Initial discussion 2. Initial draft based on project requirements 3. Schematic drawing 4. Review of schematic drawing 5. PCB design 6. Production files (STEP, BOM, GERBER, NC DRILL, PICK & PLACE) 7. Panelization (for mass production - upon further discussion) Prototype production is a subject of additional discussion. Don't hesitate to contact me with questions regarding details around your project. I am looking forward to hearing from you soon. Thank you for your time. Kind Regards Martin Botsov

Dear Sir I have design many LI-ion battery chargers. So it is really not issue for me to design any similar for you. I will need only specs from you, how many batteries you want to charge and so on. Please share more details with me. Many thanks Kind Regards

Dear friend, We can help you with this project in designing fully optimized PCB. We have good experience in PCB designing. We can help you manufacture also, how many pieces we are looking here if you specify. If interested let us know, so that we can discuss it further. Once finalized we can discuss milestones. Good Luck with project, Have a good day :)

I am sure i can help you ................................................................................................................................................................

A proposal has not yet been provided

I have team of expert engineeres who all can do work fir ur project as per their skill and we can provide u best of our as much as we can give to ur criterias for the project. Definatly provide best solutions and perforance

Hello, My name is Sebastian Frentiu. I am an electronics engineer. I have over 9 years experience in the automotive industry. I have experience with designing battery chargers circuits. There are 2 solutions to the problem at hand: 1) with a controller- this will imply using also software 2) just a hardware solution. The IC I propose to use for charging is BQ24075- this charger is used particularly for charging 3.7V batteries lithium. It stops automatically at 4.2V (this is the highest voltage supported by most 3.7V nominal lithium batteries). I have designed circuits with this IC and they worked fine. Using a comparator I will set a threshold that will disable the charger from charging when the battery voltage is at the desired 40%. I have to ask what do you mean by: "The charger should be able to charge specific Li-ion polymer mobile phone batteries and test the batteries. "- the part with test the batteries- what do you have in mind here? I am new to freelnacer. I can send you some circuits to prove that I have experience in designing battery chargers. I can bring your idea to life. Give me a chance and you will be satisfied. Thank you for your time. Regards, Sebastian

Hello, We are a power supply and power bank manufacture. We can help you to design the Lion battery charger. If you want to work with us, please feel free to contact us. Our company/manufacture is located in China. By the way, we want to manufacture products, not offer a design. Thanks for your kindly understanding. Enoch

By Qualification I am Master's in Electronics and Telecommunication engineering. i can make the circuit design for the required project of 3.7v Li-ion battery charger. i will also explain every details of circuit diagram. i do have the experience of circuit designing and doing major projects. i will make a systematic plan and accordingly i will execute the task.

designed and developed a battery charging system for inverter batteries that control its charging cycles .

I am an electronics and communication engineering student and can do this very well as we have a very well equipped lab for carrying out the purpose.