
Awarded
Posted
Paid on delivery
I am putting together a dedicated power-supply/driver for silver-ion electrolysis in distilled or otherwise very low-conductivity water and need a complete, production-ready solution rather than a loose collection of ideas. From a single 110 VAC wall input the unit must deliver a rock-solid, adjustable 20–60 VDC output while holding constant current anywhere between 0.5 A and 10 A. The load will run for up to eight hours at a stretch, so component choice, trace widths, and heat management have to be engineered for endurance; I want to handle temperature with firmware-controlled thermal throttling, not brute-force shutdown. Additional functional blocks I need included: • Bidirectional (shared-electrode) polarity switching with user-selectable cycle times between 1 and 30 minutes. • A small, front-panel LCD that shows live voltage, current, present polarity, and any status or fault messages. • A USB port that exposes the raw data stream so an external PPM meter (and future logging software) can read concentration values. Deliverables I expect: 1. Complete, simulation-tested schematic in Altium, KiCad, or a comparable professional package. 2. Optimised multilayer PCB layout with clearances suited for 60 V/10 A, including silkscreen labelling and test points. 3. Full manufacturing pack—Gerbers, drill files, pick-and-place, BOM with part numbers in active distribution, and an assembly drawing. 4. Firmware source and compiled binary for the control MCU covering LCD menu, USB output, polarity timing, constant-current/voltage regulation, and thermal throttling logic. 5. Bench test report demonstrating: – Output stability within ±2 % over the full voltage/current range for eight hours, – Ripple under 50 mV pp at maximum load, – Polarity-switch timing accuracy within ±5 s, – Proper throttling response at preset temperature limits. 6. Short hand-off guide so any PCB house can reproduce the board and I can calibrate a fresh unit in the lab. If you have previous experience designing switch-mode or linear-hybrid supplies for electro-plating, water treatment, or LED drivers, your insight will be invaluable. Please outline similar projects you have taken from concept to tested hardware and let me know how quickly you can turn the first revision.
Project ID: 40468509
15 proposals
Remote project
Active 3 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
15 freelancers are bidding on average $1,260 USD for this job

I have a rich background in Electrical Engineering with a particular expertise in Power Electronics, Analog Design and PCB Layout which aligns perfectly with your project requirements. Over the years, I've successfully handled complex projects involving switch-mode power supplies especially in fields relating to electro-plating, water treatment and LED drivers. In fact, I've designed and fully implemented projects analogous to your request leveraging on Altium which is one of your specified tools for this project. The ability to transform a concept into a tested hardware is one of my unique selling points. I understand the need for optimized layout with adequate trace width, component endurance and heat management as required in electrolysis projects. With my experience, I can effectively engineer temperature control using firmware-controlled thermal throttling, thus ensuring maximum durability as opposed to bare shutdown. I am well equipped to provide all the deliverables you require; complete, simulation-tested schematic built for endurance; an optimized multi-layer PCB layout for 60 V/10 A clearance etc. More interestingly, I can turn around the first revision quite quickly without compromising on quality. My previous clients commend me on my interactive approach in handing over concluding projects. Choose me today and let's turn your vision into reality!
$1,000 USD in 15 days
7.5
7.5

As a seasoned electrical engineer with a specialization in PCB design, I am confident that I can not only meet but exceed your expectations for the electrolysis power supply project. Throughout my career, I have consistently demonstrated my ability to develop high-quality, robust and efficient hardware solutions from concept to tested hardware. Most importantly, I have experience specifically in developing switch-mode and linear-hybrid supplies for applications similar to yours such as electro-plating. My firm's comprehensive approach to product development which includes expertise in firmware and software as well is well aligned with your diverse requirements which extend beyond just the hardware design. We will deliver not just an excellent PCB layout with clearances perfectly suited for 60V/10A tolerance but also an optimized solution that handles temperature fluctuations effectively while ensuring constant voltage and current control. With us, you don't just get a skilled freelancer to do your job - you get a long-term partner who is dedicated to building a quality product. I commit to delivering everything you need, including Gerbers, drill files, BOMs among much-needed materials; all under tightened timelines.I very much understand how crucial it is to stay on schedule especially when it comes to competitive R&D projects such as yours. Let's get started on taking your vision from concept to a thoroughly tested hardware solution – quickly and efficiently!
$1,500 USD in 30 days
7.6
7.6

Hi, Your project requires a properly engineered power-electronics system rather than a simple adjustable supply, and this aligns well with my experience in high-current embedded hardware, thermal-aware power design, multilayer PCB layout, and firmware-controlled regulation systems. I can develop the complete production-ready solution including CC/CV regulation stage, polarity-reversal control, thermal throttling logic, LCD/USB interface firmware, endurance-focused PCB layout, manufacturing package, and validation documentation. For this type of application, I would recommend a switch-mode architecture with precision current sensing, isolated control domains, synchronous regulation, temperature-monitored MOSFET stages, and carefully designed copper distribution for continuous 10 A operation with low ripple and stable electrolysis behavior in low-conductivity water. I can also structure the project in milestones covering architecture, schematic/simulation, PCB layout, firmware integration, prototype validation, and final manufacturing release to reduce development risk and speed up first hardware revision turnaround.
$1,125 USD in 3 days
6.9
6.9

Hi there, I carefully read your project description, and I can help design a production-ready 110VAC to adjustable 20–60VDC constant-current power supply/driver for your electrolysis system. This fits well with my experience in power electronics, PCB design, embedded control, sensing, and firmware-based regulation. I’m Samuel Tshibangu, a mechatronics engineer with several years of hands-on experience in Altium/PCB design, SMPS and power-control circuits, MCU firmware, thermal monitoring, LCD interfaces, USB data output, and high-current PCB layout. I’ve already worked with similar power regulation, polarity switching, current sensing, thermal throttling, and manufacturing-ready hardware projects. I can provide the complete schematic, multilayer PCB, BOM, manufacturing files, firmware, and clear hand-off documentation, with a strong focus on safety, endurance, heat management, stable output, and calibration. Feel free to send me a message so we can discuss the technical details and first revision timeline. Best regards, Samuel Tshibangu
$1,125 USD in 7 days
6.4
6.4

Hi, I have carefully reviewed your requirements for a production-ready electrolysis power supply PCB delivering a stable 20-60 VDC output at 0.5 A to 10 A current, designed for long endurance with firmware-controlled thermal throttling. With extensive experience in designing switch-mode power supplies and embedded control systems for water treatment and electro-plating applications, I can create a robust, simulation-tested schematic and optimized multilayer PCB layout tailored for your high-current, high-voltage needs. I will ensure precise bidirectional polarity switching, implement a clear LCD interface, and integrate USB data streaming for external monitoring. Alongside, I will provide complete firmware, detailed manufacturing files, and a comprehensive bench test report verifying stability, ripple, timing accuracy, and thermal management. I propose to deliver the first revision within 30 days for your review, followed by iterations based on your feedback. Could you please specify the preferred microcontroller or development environment you want for the firmware? Best regards,
$1,250 USD in 18 days
4.2
4.2

Hello, I fully understand your needs, as I have previously worked on a project similar to your specifications. I am an experienced architect specializing in 3D design and rendering. I have extensive experience using AutoCAD, SketchUp, and Revit 2025, and I can deliver the required design drawings on time. I would be delighted to work on your project. I have carefully reviewed your project details. If you choose me, your project will be completed quickly and to a high standard. Thank you for your interest.
$1,125 USD in 7 days
0.0
0.0

Dallas, United States
Payment method verified
Member since May 4, 2026
$250-750 USD
$1500-3000 USD
$30-250 CAD
$250-750 USD
$10-30 USD
€250-750 EUR
$500-600 USD
$50-400 USD
₹1500-12500 INR
$750-1500 USD
$30-250 USD
₹37500-75000 INR
₹12500-37500 INR
₹12500-37500 INR
€30-250 EUR
$750-1500 USD
₹400-750 INR / hour
₹750-1250 INR / hour
€30-250 EUR
$300-400 USD
₹12500-37500 INR