Multifunctional USB-C PD System Design

@markoa7

As an experienced electrical engineer with a strong background in PCB design and power management, I am confident in my ability to meet the requirements of your USB-C PD system design. Throughout my career, my specialty has been creating highly efficient, reliable power supply circuits for various applications, similar to the one you're seeking. My proficiency in using tools such as Altium CAD and my experience with intelligent thermal solutions will ensure optimal performance and effective thermal management. I'm particularly excited about this project because USB PD-EPR systems present intriguing challenges that I've successfully tackled in previous projects. Therefore, I understand the crucial importance of delivering seamless port capacity maximize energy distribution and USB-PD/EPR negotiation for the best user experience. Furthermore, having previously worked with components from Diodes Incorporated, including the APK43070 and AP33771C which'll be central to your design, I'm familiar with their best practices as well as their evaluation board guidelines. This insight and past experience will streamline our progress and reduce potential design risks. Let's discuss further how we can make this multifunctional USB-C PD system impeccably functional while ensuring efficiency.

@julianm260

Hello, I’m an electronics and power-systems engineer with 7+ years of experience designing high-density power delivery and USB-C PD architectures, and I’ve carefully reviewed your multi-port USB-PD EPR schematic requirements. I’ve completed 15+ USB-C PD designs, including 5 projects above 100 W per port, using integrated buck-based architectures and requester-side PD controllers from vendors like Diodes, TI, and Infineon. For this project, I will develop a clean 2–4 port reference schematic based on APK43070 + AP33771C, designed from day one to scale reliably up to 18 ports with controlled power sharing and EPR negotiation up to 140 W. I regularly follow and adapt EVB/reference schematics, ensuring correct CC logic, VBUS protection, current sensing, and signal integrity while avoiding common multi-port PD pitfalls. I have hands-on experience optimizing passive thermal solutions, including single aluminum heatsink designs handling 300–800 W total system dissipation without active cooling. You’ll receive Altium-native schematics, PDFs, a clear power tree, and layout/thermal notes that shorten PCB bring-up time and reduce revision risk. I focus on practical, production-ready designs that pass compliance and scale cleanly beyond prototypes. I’m happy to confirm port power budgeting assumptions and whether ports should operate in fixed or dynamic power-sharing modes before starting. Best, Julian M

@milosk4

With considerable experience and expertise spanning over a decade, I am no stranger to designing complex electrical systems, making me the perfect fit for your multifunctional USB-C PD system project. As an electrical engineering master's graduate with specific competence in embedded systems, PCB design, and IoT devices, I'm well-positioned to tackle every aspect of this assignment. Moreover, I have an impressive track record working on similar projects all over the world, making me professionally experienced on a global scale. For instance, I worked on designs that required functional flexibility without active cooling and upholding compliances similar to your project at OperateMyBuilding and Wattworker. These projects prepared me for the thermal management intricacies of a high port-count implementation you seek to achieve. Finally, my interdisciplinary experience across multiple industries has equipped me with a unique perspective on hardware innovation. This means that not only can I successfully deliver the technical requirements demanded by your project but also contribute valuable insights from my vast array of projects that could further enhance your final product. Don't just take my word for it; feel free to peruse my portfolio or get in contact with any of my previous clients who are repeatedly satisfied with my work. Let's collaborate so I can bring your next hardware innovation to life - magnificently!

@leenadvnani6

Good Day Rad, As a senior electrical engineer specializing in USB-C Power Delivery systems, I am well-equipped to handle the schematic development for your multifunctional USB-C PD system. I will ensure a high port-count implementation with passive thermal management and compliance with USB PD EPR requirements, utilizing key components like the GSB1C4K11DVHR USB-C Connector and Diodes Incorporated AP33771C PD Controller. Why Choose me? - Unlimited Revisions - Unique Creations - Money-Back Guarantee - 24/7 Communication - Timely Delivery Browse my portfolio for quality work samples: https://www.freelancer.com/u/leenadvnani6 Let's discuss your project further in the chat. Best regards, Leena Kumari :)

@zymaham

Hi Rad R., I would be Happy to work on your Multifunctional USB-C PD System Design based on your requirements. I design everything from scratch and customize it too. Offer includes: ☑️ Multiple concepts and revisions ☑️ High quality work with ownership ☑️ Timely communication ☑️ Quick turnaround time ☑️ Editable digital and Printable files Here you can see my previous work: https://www.freelancer.com/u/zymaham If you have any questions or need further clarification, please feel free to connect with me in the chat. Thank you Zymaham

@yaroslavmark

✅Okay, I got what you want exactly. I am a senior power electronics and hardware design engineer with over 10 years of experience, providing USB-C Power Delivery, high-efficiency buck converters, EPR compliance, multi-port power architectures, and thermal-aware PCB design. In my opinion, the key to this project is building a clean, scalable PD architecture where each port negotiates independently while still behaving predictably under shared power and thermal constraints. I would focus on a modular per-port power stage using the APK43070, with centralized policy control through the AP33771C to keep EPR negotiation robust and layout-friendly. This project is very similar to my previous works. I recently designed a 6-port USB-C PD charger (up to 240 W total) using integrated buck PD controllers, where I handled schematic capture, power-tree optimization, and thermal spreading to a single aluminum heat sink with no fan. I also delivered Altium schematics and layout notes for a 12-port industrial charging hub, including CC routing rules, sense resistor sizing, and derating calculations. ✅ So, I will divide your project like following: ⚡ Review Diodes EVB/reference designs and define a scalable 2–4 port base architecture ⚡ Design per-port power stages, PD negotiation, and protection circuitry ⚡ Build a clean power tree with load-sharing and EPR compliance checks ⚡ Provide schematic documentation, layout constraints, and thermal assumptions Best regards. Yaroslav

@GraphicsHub2k24

Dedicated Freelancer Ready to Elevate Your Project for Multifunctional USB-C PD System Design. I have a solid background in Electronics, Embedded Systems, Product Design, Electrical Engineering, Design Optimization, PCB Layout, Circuit Design and Prototyping, I bring valuable expertise to your project. I have successfully completed many projects with 100% client satisfaction. Clear and timely communication is my priority. I believe in keeping you informed throughout the project lifecycle. I am available for a discussion at your earliest convenience. Please feel free to contact me to further discuss your project details. Thank you for considering my bid. I am excited about the opportunity to contribute to the success of your project. Please visit my portfolio to check my previous work samples, here - https://www.freelancer.com/u/GraphicsHub2k24?page=portfolio&w=f&ngsw-bypass= Best regards, Muhammad Asim Khan

@josephm626

Good afternoon , How are you? I hope this proposal finds you well. I have checked your project (Multifunctional USB-C PD System Design), which lies in the field of my certification & experience. This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills like; Product Design, Prototyping, Embedded Systems, Circuit Design, Design Optimization, Electrical Engineering, PCB Layout and Electronics:, as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.