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Fixing an existing schematic and lay out it- PCB Design

$250-750 USD

Cancelled
Posted almost 6 years ago

$250-750 USD

Paid on delivery
We have a small prototype circuit (~30 components) based on the ATtiny85 designed in KiCAD and prototyped using a Digispark. Major functionality is incoming power conversion (75v -> 5v), incoming voltage measurement, and current dump into a resistor network controlled by the ATtiny. Project scope is development of a BOM of SMD components based on the schematic and layout of a two-layer PCB. Scope could also include assembly and testing of the first few units as well if availability / skills permit. Ability to review the circuit design for errors or improvements is a plus. Experience with power conversion design using the TI LM5008 buck converter or similar would be appreciated I will provide you more detiails but the applicant should read the job description and don't waste my time and write a technical proposal based on it and give me an estimate for the time and budget
Project ID: 17046475

About the project

33 proposals
Remote project
Active 6 yrs ago

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33 freelancers are bidding on average $577 USD for this job
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Dear Sir, I am an highly skilled board designer who has over 17 years experience on complex, multi layers PCB design. I can provide you with service from schematic entry to PCB Layout.I can also provide the prototype service. I can help you fix your schematics and PCB issue. Please message me if you are interested or want to learn more. We can discuss further. EDA Tools: Altium17, Pads, Orcad, Eagle8.. Thanks
$700 USD in 10 days
4.9 (116 reviews)
8.3
8.3
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Hi I am experienced electronics engineer with more than 8 years of experience in circuit and PCB designs. I have used the TI converters before and I am sure I can do it for you. Please share the design details we can discuss more over chat. Waiting for your reply to discuss it further Regards
$700 USD in 10 days
4.9 (254 reviews)
8.0
8.0
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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 frequency transformers design, solar grid tie transformers, electrical vehicles design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have very good experience to design high voltage power supplies up to 50KV for capacitor charging power supplies using soft switching topologies. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.
$1,111 USD in 15 days
4.9 (61 reviews)
6.7
6.7
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Hello, We are a design team include 3 groups: System Design, Layout PCB & Mechanical. We have +15 years experience of Developing custom electronics, Hardware Design, Firmware, Software and +5 years experience of 3D mode (3D print, CNC and molds). Our key skills are IoT, Embedded KIT, Digital & Analog, High-speed, Memory, WIFI, GPRS, GPS, RF, BLE... We have designed up to +20 layers PCB. Experience designing high density boards include FPGA, Flash, DDR, PCIE, SATA, Ethernet, BLE, WIFI, HDMI, USB, QSFP, LVDS...etc. Also, we provide FAB, ASSEMBLY & TEST services. We can make any prototypes, even support mass production. We use the expertise of the following software: - Allegro/Orcad - Altium. - Eagle - Mentor Pads. - Expedition - Solidworks/ Autocad. - C/C++ - Android, IOS... We provide Service & Support even after completion of the projects,when ever necessary. Please contact me & we can discuss more. Best Regards, BK Technology
$555 USD in 10 days
5.0 (26 reviews)
6.7
6.7
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Hello there, I have read your project description and I could help you with that. I can review the schematic and layout the board. Unfortunately I can't offer you production and testing because shipping time is abnormally long for my country. I have previous experience with similar DC/DC buck converters from TI, i.e. LM2679. I invite you to give me a ping in chat so we could discuss more about it. Also feel free to check my profile and see my portfolio. Thanks, regards.
$300 USD in 5 days
5.0 (56 reviews)
6.3
6.3
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Hi There, We will design, prototype and ship the circuit. Please provide us more details. Kindly specify the current flowing at 5V (when bucked from 75V). We can use alternates of LM5008 buck converter. Please feel free to contact us. Regards, Shahbaz.
$1,500 USD in 30 days
4.6 (50 reviews)
7.0
7.0
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Hi, I am interested in your project. I have the technical expertise to do the task. I can produce and test the initial prototypes for you. Although I have never used LM5008 before, but it should not be an issue for me. I'll review you schematic for improvements if you like. In summary I'll provide you a working project. I look forward to hearing from you soon. Regards, Hafeez
$700 USD in 20 days
4.9 (16 reviews)
6.0
6.0
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******************************************************* my Team of, students/ Senior students freelancers and I ******************************************************* *Hiring student/ senior student or/and experience freelancers online, to learn/ updates while earning *I'M Consultant Senior Manager of Experts (students and Senior Students) from Open Levels of education background *I'M at Senior Year of expert Manager Consultant left salaried workforce from 2007 *The expert Manager self must expert to lead, *registered MEMber here, PLUS R Professional TM, was salaried Modern-Physics Engineer experienced in Research and Development, Process and Equipment - TEST SoftWare (and assembly), Process, Procurement/ Purchasing and Planning ****************************************** Education, Knowledges and Skills Portfolio ****************************************** *Firm and updated skills, Computing Numerical Control skills to complete your R&D Service Order *able to deliver you PROGRAMMING and TECHNOLOGY, ENGINEERING, R&D *both HARDWARE and SOFTWARE *with add on Services/ only ONE-item service on PRODUCT CREATIVES DESIGN *Master of Engineering, with Honours - the special required Final Years Subjects/ First Class minus, with Dean's List Class Honors PCB Layout Arduino microcontroller Software Development and Foundation Matlab and Mathematica Drones Algorithm Home Design Finite Element Analysis Engineering
$555 USD in 10 days
4.8 (10 reviews)
5.8
5.8
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Hi there,I'm an electronic engineer, And i'm quiet Experienced with High Speed PCB Design and Implementation. I'm an expert in Eagle CAD,and KiCAD Can you please send me a message,So we can discuss more about the project? I can design your PCB Perfectly and send you the files ready to manufacture the Boards Design is a huge part of my life and I work hard to produce the highest quality, effective, innovative, timeless, designs that my clients will love and I would love to work with you!! :) Thank you Achini
$500 USD in 5 days
5.0 (13 reviews)
4.6
4.6
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hi hello sir, nice to see your project , My Self Vipin, i have about 4 years of experience in power electronics design and in PCB design i have read your Project details and i am very interesting to do your project , it will take time, but the work done by me will be perfect, looking forward to look more in details about your project. thanks.
$750 USD in 30 days
5.0 (8 reviews)
3.5
3.5
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Hello, Good day! This is Lawrence. I'm an hardware engineer by profession and I believe I'm able to support you. Please contact me anytime and I can start right away. Estimate to complete the task will not reach 20 days. Thank you
$350 USD in 20 days
5.0 (4 reviews)
3.3
3.3
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Hi, I think I can do it. It seems like a DC-DC convert which can measure current & voltage. I have developed many similar product. I am expert in Circuit design/PCB layout/firmware develop. I have more than 19 years experiences. I have developed a lot of products, some of these is used in China High-Speed system. Please contact me and discuss about your requirements, thanks.
$750 USD in 30 days
2.2 (7 reviews)
5.2
5.2
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hi... we can design your project in Altium Designer.. we ll provide to you schematics, PCB, BOM and gerber files and what you need we are interesting your project, pls give me more details.. thanks..
$555 USD in 10 days
4.8 (3 reviews)
2.5
2.5
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Hello I read your whole description. I can help you in design your hardware. I have experience in Hardware design ( Schematic design, Layout design, BoM, Gerber) and i also have contacts which can provide assembling facilities. I have good experience in power tree design for high speed soc, so i think i am able to design this hardware. In past, i had design customised board according to clients requirements. Chipset experience: Qualcomm Snapdragon 820 Rockchip 3399 STM32F4ZI ATmega1281 I can help you in your project. If you wish to show my work or test my skills, then feel free to message me. Thanks
$555 USD in 5 days
4.0 (2 reviews)
2.0
2.0
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Dear Sir or Madame, I am an Professional working in the Field of Power Supplies. I am very familliar with the common power converter types (including Buck converter). I could also offer you to have a closer look at your design with a special eye on EMI and other requirements a electronic component has to fullfil. Therefore I should know the requirements for your product ( UL, CE, etc.). The remaining details will be discussed, if you choose me for this work. Thanks in advance. Thomas Benz
$550 USD in 5 days
5.0 (1 review)
0.0
0.0
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The issues with buck converter are usually in layouting and support components choice. I may take a look the circuit and see what I can improve. I mostly design a circuit with KiCad so I can use the existing design and if needed I could build and assemble the first prototype to ensure my design will be working correctly. Time estimation: Design the PCB will be taking for around 2 weeks. Purchasing components and print a PCB will take a week. Assembly the first few prototype, 1 week. Budget estimation will depends on the component price that will be used.
$833 USD in 30 days
0.0 (0 reviews)
0.0
0.0
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Notes:- a) Scope of work I'm bidding for:- - Review schematic design & Capture schemactic - Completed BOM List - Design PCB Layout ** Will not assemble and test design b) Deliverables - Schematic (pdf) - BOM List (excel) - Assembly Drawing, Fabrication Drawing, Gerbers ** Will use Altium Designer for the design.
$300 USD in 30 days
0.0 (0 reviews)
0.0
0.0
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Ho dor, I read the job description, and ok. Let me see pictures of the prototype, above and bottom of the pcb Also the schematic Have you made simulation of the schematic before prototyping? Relevant Skills and Experience Pcb design, prototype
$555 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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I've experience with various PCB routing software. Actually I'm using Mentor PADS Standard Plus and Eagle CAD. I will convert your design in Eagle, make the necessary library components, and give you gerber files of the board and all other fabrication file needed (paste mask, BOM, placing file).
$666 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Hello! I am start on the Freelancer, so I try not to make high bids. Your task is not difficult for me and I can execute it in Eagle 8.5, Altium 17 or Orcad 9.2 according to your desire. I did not work with LM5008, but I can exactly reproduce the location of the components as on a LM5008 Evaluation Board. If you have any questions for me, I will be happy to answer them. Sincerely, Igor.
$322 USD in 10 days
0.0 (0 reviews)
0.0
0.0

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Member since May 16, 2018

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