Design a circuit and PCB for testing CN3082 battery charger IC

We require an evaluation board to be designed to characterize the performance of a battery charger IC, the CN3082 from Consonance Electronics.

Design Requirements:

- Concurrent measurement of input and output voltages and currents, and voltage of temperature pin and charge status pin with resolution of 2 mV and 2 uA and accuracy of 5 mV and 5 uA, using an onboard multichannel ADC. To achieve the required accuracy, calibration trimmer pots may be added to the design.

- Use low-value current shunts and op-amp buffered voltage taps to minimize measurement disturbance of circuit under test.

- Measurement devices (op-amps, ADCs, etc.) will be powered separately and will communicate through an I2C bus to a off-board device through a standard pin header.

- Measurement devices must have suitable filtering as well as input protection so that they are not damaged if their power is disconnected while the device under test remains powered.

- CN3082 device under test will have headers for general input and output connections to the board, as well as a JST header for solar input connection to a 6V, 600 mA solar panel, and an SMD 18650 battery holder for output.

- Wherever possible, components should be chosen that are SMD, and are easy to hand assemble (at least 0.5mm pin pitch, 0603 - 0805 passives, etc.)

- Some specific devices may need to be utilized in the design, as we may have parts already on hand. More details will come.


- Board schematic to be checked by our team so that any revisions can be made by us before going forward.

- List of which signals connected to which ADC channels, and conversion factors (in mV/count or uA/count).

- Bill of materials which shall consist of all parts required, and shall be readily available from suppliers such as Digikey and Mouser (with exception of CN3082 IC).

- Layout of a finished 2-layer board, with signals and components properly labeled, not larger than 100mm x 80mm.

- Finished Gerber files, ready for manufacture.

All design work must be done using KiCAD software.

Skills: Circuit Design, Electrical Engineering, PCB Layout

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About the Employer:
( 3 reviews ) Spruce Grove, Canada

Project ID: #15884379

19 freelancers are bidding on average $260 for this job


hello I have a experience Battery charger Stay tuned, I'm still working on this proposal.

$888 CAD in 15 days
(38 Reviews)

The current price and timescales are only place holders to allow me to communicate with you If you think I can help then please send me further details Best Regards Dave Lelievre Relevant Skills and Experience I have More

$277 CAD in 7 days
(25 Reviews)

Dear sir, I am a professional. I may be little costly. Please revert back to me if price fits your budget. Relevant Skills and Experience 18 years Proposed Milestones $500 CAD - 1

$500 CAD in 3 days
(12 Reviews)

i am interested in this project. please PVT me for more details. i am in pcb design and fab industries last 12 years Relevant Skills and Experience PCB Proposed Milestones $222 CAD - one time

$222 CAD in 3 days
(6 Reviews)
$30 CAD in 3 days
(8 Reviews)

Hi I have been designing pcbs for 4 years. I have experience designing circuits measuring voltages and currents with shunt resistors and boltage with op amp buffers. I can help you with your pcb Thanks

$205 CAD in 3 days
(1 Review)

First of all I have to investigate some of the batery charger [login to view URL] will take me a couple of [login to view URL] that with your spec I will make a first proyect in paper to have a global idea After that I will work on cad unt More

$111 CAD in 20 days
(2 Reviews)
$155 CAD in 3 days
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$155 CAD in 3 days
(14 Reviews)

Design of 2 Layer .CN3082 test board including schematic capture, pcb layout, component library & footprint creation, generation of gerbers, drill files and BOM. Work to be done in KiCad Relevant Skills and Experience More

$500 CAD in 8 days
(0 Reviews)
$83 CAD in 1 day
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I can do this project in high level

$155 CAD in 6 days
(0 Reviews)

This is testing board design project (based on CN082 datasheet or other docs), for charging. Relevant Skills and Experience I have experience on charging circuit design and I have used CN chip before. Proposed Miles More

$500 CAD in 7 days
(106 Reviews)
$160 CAD in 4 days
(3 Reviews)

I am best in PCB design. The price & time i have entered is tentative & negotiable. you can chat any time for techno Commercial Discussion. Thanks.

$254 CAD in 8 days
(0 Reviews)

I have experience in designing solar charger. I have knowledge in MPPT for charger device from solar cell and how to make charger effective and remain time life of BAT. Relevant Skills and Experience - Knowledge in More

$166 CAD in 4 days
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$155 CAD in 3 days
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$155 CAD in 3 days
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Hello I am an electronics engineer with experience in product development using kicad. Interesting project and happy to collaborate. Thanks.

$277 CAD in 15 days
(1 Review)