Find Jobs
Hire Freelancers

Design a 130 watt DC to DC step down converter (Buck converter)

$250-750 USD

Closed
Posted over 10 years ago

$250-750 USD

Paid on delivery
We are looking for someone who can make us a prototype of a DC to DC converter. The step down DC-DC converter should be able to convert a 240 DC input voltage to 100 DC or 50 DC output voltage. We prefer the output voltage to be around 50 DC, as long as it's cheaper and efficient, if it's not cheaper or the power loss is significant than we are also happy with a 100 DC output voltage. Please, note this is not a "signal buck converter", it's a "power buck converter", we use it with our high voltage solar panels. Therefore, this converter should handle around 130 Watts of power.
Project ID: 5183664

About the project

13 proposals
Remote project
Active 10 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
13 freelancers are bidding on average $749 USD for this job
User Avatar
hi, i am an electrical engineer. i have expertise in embedded system design.i can help you with this project.
$3,000 USD in 45 days
4.9 (44 reviews)
6.4
6.4
User Avatar
Dear Hiring Manager, (I HAVE MADE ALL TYPES OF DC-DC CONVERTERS UP TO 500W) I'm a professional EE who've made several projects for local & foreign companies, students (both semester & final year projects). Just have a look at my profile, read the beautiful reviews my clients have posted about my performance, discuss the project details with me & AWARD. SERVICES I WILL PROVIDE: 1. Complete Software Design 2. Complete Coding (For PWM) 3. Bill of Materials 4. Hardware Module_costs of materials & shipping are separate 5. Project Report (FREE up to 10 pages. $20/page onwards) 6. Free 15 day support, even after the project is closed 7. 110% Satisfaction NOW, a brief introduction of my skills and previous projects: MY EXPERTISE: 1. Circuit design 2. Power electronics i. design of motor drives ii. All types of DC-DC converters (BUCK, BOOST, BUCK-BOOST etc.) iii. All types of DC-AC inverters (Full Bridge, Half Bridge, Three-Phase etc.) 3. Control systems (PLC, motor controls, ladder diagrams, power diagrams etc.) 4. Digital Logic design 5. Renewable energy systems 6. PROGRAMMING: i. Microcontrollers ii. Microprocessors iii. PLCs iv. Arduino v. FPGA vi. XBEE, etc. 7. SOFTWARES: i. Microcap ii. Matlab iii. Orcad iv. Proteus v. PWS vi. Etap vii. Logisim viii. Xilinx etc. RECENT 5 PROJECTS: 1. Automatic room temperature control 2. DC-DC Cuk converter 3. Smart Grid System 4. Audio Amplifier 5. Android application
$366 USD in 15 days
4.9 (26 reviews)
5.2
5.2
User Avatar
Hi, I am a Mechatronics and Control Engineer, I have already worked on a similar project in which the power was coming from solar panels and it is dropped down to 12V in order to charge the battery. For this I used buck converter which worked really fine. I will design the buck converter on my side and will send you a complete working video so that you get satisfied with its working. Thanks.
$1,000 USD in 20 days
5.0 (22 reviews)
4.7
4.7
User Avatar
Electrical Engineer (Gold-Medalist) from the oldest and the most reputable engineering institute of Pakistan (UET, Lahore). Done my internship @ US based R&D embedded company “Mentor Graphics” and currently working as Professional “Embedded Design Engineer” @ Asia’s #1 ranked R&D company “MicroTech Industries”… Other Distinguishing Characteristics: 1. Perfect Academic Record in Electronics+Circuit Design+DSP(A+ in all these subjects) during my BS Electrical Engineering 2. Done immense # of projects in Electronics/Telecomm including: • Automated Room Temperature control by implementing Closed loop Feedback Controller • Cellular AGC Design(Active Low pass filter) • RFID Controlled using Smart Phone • 2 Port LC Resonator circuit characterization • DC-DC Flyback converter • Direct AC-AC Converter • Cellular CDMA receiver Design • Score Keeping board with the time left indication (servo motor enabled) 3. Founding director of “AK Electronics Lab” in which I have personally purchased all required testing, debugging and small scale PCB manufacturing facilities • Digital Storage Oscilloscope • SMD Soldering rework station • Universal Programmer for a large range of controllers Looking for +ve reply soon :)
$400 USD in 30 days
5.0 (6 reviews)
3.6
3.6
User Avatar
Hi I am an electronic undergraduate and expert in power electronics. I have followed a power electronics course and designed a buck converter. I can help you.
$777 USD in 15 days
5.0 (3 reviews)
2.9
2.9
User Avatar
Hello, what about the size issue?, not important with you?, so it's just cost effective DC-Dc buck converter?
$555 USD in 60 days
0.0 (0 reviews)
0.0
0.0
User Avatar
A proposal has not yet been provided
$555 USD in 35 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hi, Even I am the software guy from my hardware team I have also good hardware abilities. Anyway if it is needed my colleagues will provide me support to give you a reasonable solution. If you consider we can discuss the project via Skype before assigning me the project. Best regards, Nicolae
$500 USD in 20 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Sir, I am a Electrical Engineering Graduate and pursuing Post Graduation Degree in Power System. I know what all this project needs and well aware of the various topologies required for this project.I am going through the project matter needed and the ieee submissions on Buck Converter and will provide the project within the time period assigned. email i.d.: pendharkarshubham31 at gmail
$250 USD in 6 days
0.0 (0 reviews)
0.0
0.0
User Avatar
hi, sir, i' m expert in DC to DC converter. i have a lot of experiences in this field pls, hire me. i can hep you well. regards.
$500 USD in 30 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Aucune proposition n'a encore été fournie.
$555 USD in 3 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Do u want the prototype built in pcb or just the circuit with all its parameters?? I can give you the simulation circuit for buckconverter
$666 USD in 4 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of JAPAN
Japan
5.0
1
Payment method verified
Member since Dec 1, 2013

Client Verification

Other jobs from this client

Energy Drink brand name.
$30 USD
Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.