mini project charger - 01/05/2018 21:04 EDT

Your design must use a battery to provide power using a USB type A female connector to supply power and charge a mobile phone. The supply must be able to use primary alkaline 1.5V or rechargeable cells in a standard package (for example: AA or AAA size alkaline or NiMH or other similar chemistry and package).

You must research similar existing devices (see sites like instructables and hackaday for examples).

Your design must be your own unique, original design, however it may incorporate elements and ideas from existing designs.

Minimum requirements and specs:

The output must be 5.0V +/-0.2V

Output supply at least 500mA to the load

The output must be short circuit protected

Must be able to accept standard alkaline cells

Indicators for: input power, output on, charging, fault

Skills: Circuit Design, Electrical Engineering, Electronics, PCB Layout, Product Design

See more: good system programming mini project, mini project excel employee salary details, mini project names web designs, demo mini project, mini project ofdm, mini project report implementation rsa algorithm using java, mini project php students, mini project abstract java, mini project stationery shop, free mini project html using javascript, simple mini project 8085, database mini project, servlet mini project, accounting mini project, mini project using java script

About the Employer:
( 1 review ) Sd, United States

Project ID: #16855559

Awarded to:


Hello I can help you with your project. how many cells(alkaline or NiMh) do you plan on using? Does the system need charging circuit?

$100 USD in 3 days
(13 Reviews)

21 freelancers are bidding on average $208 for this job


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 welding power supplies design, Plasma ARC power supplies, high More

$444 USD in 15 days
(60 Reviews)
$166 USD in 5 days
(33 Reviews)

i can design this charger, please contact for detail discussion, please spare some time for visit my profile and portfolio thanks ashraf shekh design solutions

$222 USD in 3 days
(16 Reviews)

Please give us more detail about this project. If you need some of REF designs, please contact me. We have over 10 year experience to work on: schematic design, layout, gerber, QA and CAM/CAD mechanical. Please t More

$250 USD in 4 days
(16 Reviews)

Hello there, I have read your project description and I think I can help you with that. We can use 3 AA or AAA batteries to get 4.5V and than through LM2623 we boost it and we can have 5V 1A output. Device that will be More

$150 USD in 4 days
(24 Reviews)

We would like to work on your mini charger. About Us: We are a Product Design Company, specialising in developing products for consumer, medical, kitchen and Mechanical Industries. Portfolio: [login to view URL] More

$200 USD in 3 days
(8 Reviews)

Hello there! Hope you doing good! If you still need this to be done, be sure to contact me. Lets make something awesome! Greetings!

$250 USD in 30 days
(34 Reviews)
$200 USD in 3 days
(20 Reviews)
$250 USD in 3 days
(19 Reviews)

Hi, I am very interested in your project. I have enough experience in design of various kinds of charging circuit with the solar panel. I am confident my skills and experience in charging circuit would make me More

$155 USD in 3 days
(11 Reviews)

Hello. I can create circuit design. But you need at least 3 alkaline AA battery to charge nowadays smartphones aproximately to 70%. Because AA alkaline have about 1.5V 2000mA/h, smartphone lithium battery have aproxima More

$222 USD in 4 days
(2 Reviews)

Hi If you want we could provide a quick draft for you. please take a look at our profile. Regards

$250 USD in 7 days
(1 Review)

I will try to the best innovative product as well as short time period. I have good skills of product design & reliability which will need to customer.

$155 USD in 5 days
(0 Reviews)

I am an electronics engineer. I will design the power bank according to your requirements specified. thank you

$277 USD in 5 days
(0 Reviews)
$155 USD in 3 days
(0 Reviews)

A proposal has not yet been provided

$244 USD in 5 days
(0 Reviews)

A proposal has not yet been provided

$222 USD in 3 days
(0 Reviews)
$222 USD in 3 days
(0 Reviews)

Hi, I have already done this kind of project with using power management of mcp73871 .You can check it . It has inbuilt short circuit protection as well as power option directly and from battery both Relevant Skills More

$80 USD in 3 days
(0 Reviews)

Honestly I am working for your project Relevant Skills and Experience I am interested your project

$155 USD in 3 days
(0 Reviews)