Circuit + PCB design for USB Car Power Supply 5.15V 4 AMPS

Circuit Design + Board Design

Basic Description

Car USB Power Supply

Input 10-20 V

Output 5.15 V 4 Amps

Special features :

The USB needs to be able to output 5.15 V @ 4 Amps for 15 seconds

after the input Power has been switched off (maybe via capacitor ?)

There needs to be 1 GPIO pin that is 3.3V as long as input Power is connected

If input Power is disconnected this pin needs to be switched to Ground

The PCB Dimension should be as small as possible and have a USB connector on one side of the PCB and 2 screw terminals for Power and Ground input on the other side of the PCB

The design files as well as the Gerber/Drill/BOM files need to be made available after the Project is finalized

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

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About the Employer:
( 2 reviews ) Pretoria, South Africa

Project ID: #23920996

Awarded to:


Hey There, Hope you are doing good. I read about your project and I am interested in doing it, I am electronics engineer from India with 3 years of industry experience in designing and manufacturing of Electronics syst More

$55 USD in 2 days
(2 Reviews)

32 freelancers are bidding on average $177 for this job


Dear Sir, If you are looking for an highly skifull hardware engineer, I believe that I am the one who you're looking for. I am an experienced PCB designer who has over 18 years design experience on complex PCB design. More

$240 USD in 8 days
(115 Reviews)

Hi There, We will deliver the design of circuit as mentioned in project requirements. Deliverable will be. 1. Schematics. 2. BOM (bill of material). 3. Gerber files for PCB production. Please feel free to contact us. More

$300 USD in 7 days
(50 Reviews)

We are a team of Electrical and Electronics engineers and we are Excellent in the following areas: • Embedded C Programming. • VHDL/Verilog • Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC and STM32. • ID More

$250 USD in 7 days
(34 Reviews)

Hi As requested i will give you a fully designed PCB with gerber, drill and BOM output for your device. And yes it will continue to supply 5.15V @4A for 15 seconds after the power has been switched off. Please let me k More

$250 USD in 7 days
(6 Reviews)

Hi, your project seems to be quite challenging (providing 5.15 V / 4 A for 15 seconds after "power-off"). Provided "power-off" equals "ignition off", I can offer you a solution that will work without a large buffer c More

$250 USD in 20 days
(8 Reviews)

Hi, I have working experience in developing the project on the BLE, GSM, LTE, WIFI, Ethernet. I have worked with the ATMEL, STM, NORDIC, PIC, Silicon LAB, Dialog. Used different types of module GPS, BLE, RF, TFT Displ More

$250 USD in 7 days
(4 Reviews)

I have more than 12 years of experience in hardware design. That's the reason why I consider myself as being a suitable candidate for this project. I hope my offer fits your neccessities. You can check my portfolio in More

$220 USD in 7 days
(6 Reviews)

Hello, thank you for your job posting. I am a senior device developer. I have plenty of experience in firmware development and micro-controller developments. I can write the firmware based on Arduino, Raspberry Pi, Pic More

$250 USD in 3 days
(13 Reviews)

Best Power Electronics Expert at your doorstep! Dear Client, With more than 5 Years of experience in PCB Design and Circuit Design in Power Electronics, I can ensure you quality work and before time delivery. I have More

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(5 Reviews)

I am specialist in development and interfacing between Android application and arduino board. hardware designing for embedded hardware. software development for embedded hardware. Home automation. Controlling hardware More

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(11 Reviews)

Hello This circuit for charging android phones?, i don't understand tge part of 15 seconds shutt off, pleaseessage and clarify I have designed many projects before,and capable to deliver this project Relevant Skills a More

$155 USD in 7 days
(8 Reviews)

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$60 USD in 7 days
(4 Reviews)

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(4 Reviews)

As an electronic architect, I have been working in PCB structure/design and firmware programming field for 8+ years. Here is a portion of the encounters that I worked back. - Schematic and PCB Format is utilizing Alt More

$30 USD in 2 days
(3 Reviews)

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$100 USD in 7 days
(1 Review)

Hi I am a Power electronics Engineer For 5 years. I have designed many previous Converters and you can see my portfolio I will design your converter with all your Requirements and exporting all the needed files for yo More

$70 USD in 7 days
(1 Review)

Our company has experience in converters and power electronics and we have a lot of experience with the task you described. We can propose to use the solution with super caps with two converters - one for charging to h More

$400 USD in 15 days
(0 Reviews)

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(0 Reviews)

Hi, I have done similar projects before. I'm confident I can finish this project very soon. Please contact me to discuss more in detail. I have more than 17 years of hardware development. My skills cover schematic ca More

$200 USD in 7 days
(0 Reviews)

Hello, Your job post after first reading look simple but after analyzing request to have 15 s 4A at 5.15V problem become very difficult. I made some calculation and I got next result, to give 4A at 15s but stll keep v More

$140 USD in 7 days
(0 Reviews)