15W Qi Charger PCB Design

@Mahihassi

With over a decade of experience in electrical engineering and an impressive educational background that includes a Master’s in Embedded Systems, I am undoubtedly the best fit for your project. My expertise and skills include circuit design, microcontrollers, firmware development, and most importantly for your project, PCB layout design. I have an extensive command over various tech tools such as Altium Designer, KiCad, Eagle, and EasyEDA, which helps me deliver professional PCB layouts that are not just functional but also effective for RF equipment like yours. In addition to this, my deep understanding of how embedded systems work allows me to ensure compatibility between various components of your charging transmitter, from the USB-C input to the 5V connections. Having worked on numerous similar projects in the past, I have mastered not only the technical aspects of PCB design but also effective project management. My expected turnaround time for your project is X days/weeks and rest assured that I will keep you fully updated throughout the process. Let's work together to turn your idea into a market-ready product that stands out with its robustness and intelligent connectivity!

@macroenergy

With over a decade of experience in electrical engineering and circuit design and a strong foundation in embedded systems, I believe I am the perfect expert to handle your project of designing a 15W Qi-compliant wireless charging transmitter. I am well-versed with the concept Wireless Power Transfer (WPT), specifically the principles behind inductive coupling and resonant topologies found in Qi chargers. My skills ensure that your charger will be designed efficiently for optimal performance. In my foray into Power Electronics, I have dealt with various power conversion systems similar to what you require in your PCB design. My experience designing SMPS boards and DC-DC converters can significantly contribute to your project's success. Additionally, my knowledge of USB-C and its interfaces will help me create a powerful PCB that addresses your need for reliable USB-C input power source meticulously. My proficiency extends to using CAD tools for PCB design like Easyeda and Altium Designer. The final design will be manufacturer-ready, thus saving precious time for you. What sets me apart is my dedication to getting things right the first time and passing on high-quality, functional designs that meet or exceed expectations. With me on board, you can expect an efficient turnaround time without compromising quality. So let's get started, shall we?

@sheak

Hello, We would love to help you design a clean, production-ready 15W Qi wireless charging transmitter PCB with USB-C input and proper power gating for safe 5V output only during active charging. With 550+ excellent reviews and a proven track record, we specialize in hardware-focused design work where attention to electrical integrity, efficiency, and compliance with Qi standards is critical not just schematic completion. For your project, we will focus on a robust PCB architecture that ensures stable 15W Qi performance, proper USB-C power handling, and controlled output switching so the 5V rails are only active during verified device charging. I also ensure layouts are optimized for thermal behavior, coil alignment constraints, and real-world manufacturability. I can start immediately and will clarify any key design parameters (coil selection, controller IC preference, enclosure constraints) before finalizing the schematic and layout. Best regards.

@engrusmanfaiz

Hello, I reviewed your wireless charging requirement carefully. The main challenge is designing a stable and Qi-compliant 15W transmitter with proper power negotiation, thermal handling, coil tuning, and reliable charge detection from the USB-C input. I can help design the complete PCB including USB-C power stage, Qi transmitter section, matching network, protection circuitry, and the switched 5V output that activates only during active charging. I have experience with power electronics, USB-C PD systems, wireless charging circuits, and compact PCB layouts for manufacturable products. The design will focus on efficiency, thermal stability, EMI reduction, and reliable foreign object detection behavior. Deliverables can include schematic, PCB layout, Gerbers, BOM, pick-and-place files, and manufacturing-ready documentation. Typical turnaround for the first complete design package is around 4–7 days depending on coil constraints and enclosure size. Before starting, I would mainly need your preferred PCB dimensions, target coil size/thickness, and whether you want standard Qi IC recommendations or a specific chipset. I can also help optimize the design for JLCPCB/PCBWay assembly if required. Regards, Engineer Muhammad Usman

@Adeel2k14

As an Electronics Design Engineer specializing in both firmware development and high-layer/power PCB design, I am confident I am the ideal candidate for your project. I have reviewed your requirements and have a proven track record of delivering successful hardware solutions in this exact domain. My deep expertise in power optimization and robust PCB development ensures a reliable, production-ready design. I look forward to discussing how I can bring your project to life. "I am an Electronics Design Engineer with extensive experience in firmware development and power PCB design. After reviewing your project description, I am confident that my background in this specific domain makes me an excellent fit to deliver high-quality results for your task. I would welcome the opportunity to discuss your technical requirements in more detail. Regards, Muhammad Adeel

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver a complete, production-ready PCB design for a 15W Qi-compliant wireless charging transmitter powered from USB-C, including a 5V output (positive & negative) that activates only during active charging. MY APPROACH ✅ Phase 1: Architecture selection (Qi transmitter IC, coil driver, USB-C PD negotiation if needed, foreign object detection, and charging status detection for 5V output). ✅ Phase 2: Schematic capture with proper isolation, thermal management, and EMI considerations. ✅ Phase 3: Compact 2 or 4-layer PCB layout optimized for coil performance, heat dissipation, and manufacturability. ✅ Phase 4: Full manufacturing package + basic firmware (if digital control is used). DELIVERABLES • Full schematic + PCB layout source files (KiCad preferred) • Gerber RS-274X, NC Drill, Pick & Place files • Detailed BOM with LCSC/Mouser links • 3D STEP model • Assembly & testing notes Expected Turnaround: 5–8 calendar days for first revision (schematic + layout), depending on feedback speed. QUESTIONS 1. Any strict size constraints for the PCB (e.g. max length/width)? 2. Do you need USB-C PD support (9V/12V input for better efficiency) or standard 5V only? 3. Preferred EDA tool — KiCad or Altium? Ready to start immediately once we align on the above. Please send any reference images, enclosure dimensions, or specific coil size preferences.

@leonidye

Hi, I can design a complete 15W Qi-compatible wireless charging transmitter PCB featuring a USB-C power input, optimized power delivery capabilities, and a control mechanism that activates the 5V output only when actual charging is in progress. I possess extensive experience in wireless power systems, USB-C Power Negotiation, high-frequency PCB layout, thermal management, and power electronics design—specifically with EMI considerations—tailored for reliable manufacturing processes. The design incorporates an appropriate coil driver architecture, optional Foreign Object Detection (FOD) support, efficient power regulation, and precisely routed high-current/high-frequency paths to uphold the stability and efficiency standards of the Qi protocol. Furthermore, I can optimize the PCB to maximize miniaturization, thermal dissipation performance, and ease of manufacturing, all while ensuring safe operation and stable charging performance across a wide range of compatible devices. The typical timeframe for completing the initial full design revision is approximately 5 to 7 days, depending on the final specifications and your preferred Qi controller architecture. Before commencing work, I require clear confirmation regarding your preferred board size constraints, the anticipated USB-C input profile , and whether the objective is to obtain strict official Qi certification or if functional Qi compatibility alone is sufficient. Regards.

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@hamzazayyad

Dear Sir, I can design a complete 15W Qi-compliant wireless charging transmitter PCB with USB-C power input and controlled 5V output terminals that become active only during charging. I have more than 15 years of experience in electronics, power circuits, PCB design, and embedded systems development. The project can include: * Schematic and professional PCB layout * Qi transmitter IC selection and matching network design * USB-C power input stage with proper protection * Controlled 5V output switching during active charging only * Efficient power routing and thermal considerations * Gerber files, BOM, and manufacturing-ready outputs * Design review for stability, EMI reduction, and reliability I can work with KiCad, Altium, or EasyEDA depending on your preference. Before starting, I would like to confirm: * Preferred PCB size or shape * Required charging coil dimensions/type * Input power profile (USB-C PD or standard 5V/9V) * Maximum output current needed on the 5V terminals * Any enclosure or mounting constraints Estimated turnaround: 4–7 days depending on specifications and revisions. I would be happy to assist with both the hardware design and production preparation. Best regards, Hamza Electronics Engineer

@yaroslavmark

Hi, I’m a senior hardware and power electronics engineer with strong experience in Qi wireless charging systems, USB-C power design, and compact mixed-signal PCB development. I have completed 50+ PCB projects including wireless power transmitters, DC-DC converters, USB-C PD interfaces, and high-efficiency power-management boards using Altium and KiCad. Approach: ✅ I will design the complete Qi-compliant 15W transmitter schematic including USB-C power input, wireless charging controller, coil driver stage, protection circuitry, and gated 5V output control. ✅ I will optimize the PCB layout for thermal performance, EMI reduction, impedance stability, and efficient power transfer while maintaining Qi compliance requirements. ✅ I will validate charging behavior, foreign-object detection support, output activation logic, and charging-state-controlled 5V switching before delivering manufacturing-ready files. Questions: ✅ Do you prefer a specific Qi transmitter IC family such as TI, NXP, or NuVolta for the design? ✅ Should the USB-C input support fixed 5V only or USB-C PD negotiation for higher input power capability? ✅ What maximum board dimensions and connector style are preferred for the final PCB? Best, Yaroslav

@Feriver

Hello, I understand you need a complete 15W Qi-compliant wireless charging transmitter PCB design powered via USB-C, with controlled 5V output that activates only during active device charging, ensuring efficiency, safety, and proper Qi protocol compliance. I will design a full end-to-end PCB solution including schematic design, component selection, power regulation, and Qi transmitter controller integration. The design will include USB-C input protection, power management circuitry, coil driver stage, and control logic to ensure the 5V output is only enabled during valid charging sessions, in compliance with Qi standards and thermal safety constraints. I will also deliver production-ready PCB layout files (Gerber), BOM, schematic diagrams, and design notes for manufacturing and prototyping, ensuring signal integrity, proper EMI handling, and optimized thermal performance for 15W operation. You can also view my portfolio here: https://www.freelancer.com/u/Feriver Thanks, Asif

@shykhAbubakar

Hi, I am ready to design your complete Qi compliant 15W wireless charging transmitter PCB. The focus will be on a compact, manufacturable design powered via USB C, with reliable 5V outputs that activate only during active charging. The design will be aligned with Qi v1.3 wireless charging standards and IPC 2221 ensuring interoperability, safety, and production readiness. Before moving forward, do let me know: 1. Do you prefer USB C PD negotiation for 15W delivery or a fixed 12V/15V input rail? 2. Should the exposed 5V output be isolated or directly tied to the charging control IC? Project Deliverables 1. Schematic design & PCB layout 2. Gerber files and BOM Tool I Use • KiCad / Altium Designer I have 7+ years in PCB design and embedded systems. Some projects include: • Qi Wireless Charger PCB 10W transmitter design with USB C input • USB C Power Delivery Board compact PCB with PD negotiation Find my past projects attached with this proposal. Looking forward to your message. Warm regards, Abubakar

@tetianam8

⭐⭐⭐⭐⭐ Hello, I can design a complete 15W Qi wireless charging transmitter PCB with USB-C input and a controlled 5V output that becomes active only while charging is detected. I have experience with power electronics, wireless charging layouts, thermal management, and EMI-conscious PCB routing. For this project I would focus on: • stable Qi power transfer • proper coil matching/tuning • USB-C input protection and power handling • thermal dissipation at 15W • low-noise layout around the switching stage • reliable charge-state-controlled 5V switching Deliverables: • Schematic + PCB source files (KiCad/Altium) • Gerbers/drill/PnP/BOM • Manufacturing-ready outputs • Basic bring-up/design notes I can also select currently available components from TI/ST/NXP/etc. depending on your preference and supply-chain requirements. Typical turnaround: • Initial schematic: 1–2 days • Full PCB + fabrication package: ~5–7 days A few things I’d confirm before starting: • Available input voltage/current from USB-C source • Preferred board dimensions and coil size • Prototype-only or Qi-certification-ready target • Any enclosure height restrictions Best regards.

@EngDarwishelectr

HI , Designing a 15W Qi transmitter with a conditional 5V output requires a specific power architecture. To achieve 15W of wireless power, the USB-C input cannot just pull 5V; it must include a USB Power Delivery (PD) sink controller to negotiate 9V or 12V from the wall charger. I am a Senior Hardware Engineer specializing in power electronics. I don't just deliver CAD files; I will manufacture, assemble, and bench-test a functional physical prototype for you in my lab. My Engineering Approach: 1. Core Qi & PD Sink: I will use a 15W Qi IC paired with a USB PD trigger. The resonant tank will use strictly C0G/NP0 capacitors to handle the high AC voltages without thermal drift. 2. 5V Switched Output: I will step the 9V/12V input down to 5V via a high-efficiency buck converter. To make it "live" only during charging, I will route the Qi controller's "Charging Active" status pin to the gate of a MOSFET load switch. Cost & Timeline: For the complete manufacturing package (Gerbers, BOM, CPL), my fixed engineering estimate is $450 to $500. Designing the board takes 4-6 days. Factoring in JLCPCB fabrication and my physical bench-testing, the maximum turnaround is 14 to 21 days. Questions for you: What is the maximum current (Amps) required by your 5V switched output? Do you have strict dimension limits for the PCBA or the planar coil? Let's discuss! Best, Ahmed Mustafa Senior Hardware Engineer

@nabeelraza1993

Designing a 15W Qi-compliant wireless charging transmitter PCB requires careful power-path design, coil-driver selection, USB-C input handling, thermal management, EMI-aware layout, and a controlled 5V output that is enabled only during an active charging state. Well what I can do for you as electronics engineer with 8+ years of experience is design the complete PCB around a suitable Qi transmitter IC/reference architecture, including schematic capture, component selection, USB-C power input stage, transmitter coil interface, charging-status logic for switched 5V positive/negative output, PCB layout, BOM, Gerber files, and assembly documentation. In fact, I’ve worked on multiple PCB-design and embedded electronics projects involving power electronics, battery systems, wireless charging concepts, USB-powered circuits, regulated outputs, protection stages, and manufacturable board documentation, so delivering a clean Qi-transmitter PCB design with proper layout rules, thermal considerations, and production-ready files aligns directly with my electronics engineering experience. I can start after confirming the target coil, enclosure size, preferred PCB dimensions, USB-C input rating, and whether you want the 5V output triggered from the Qi controller’s charge/status pin or through an external sensing circuit.

@tushortz

Hello, I understand you need a complete PCB design for a 15W Qi-compliant wireless charging transmitter powered by USB-C, with 5V output connections active only during charging. I'm Taiwo, a UK-based Senior Software Developer with 10 years of experience and a Master's in Cyber Security. My experience with top companies like IBM, UK Government, BMW, and Sky has equipped me with skills in project management and designing secure, efficient systems. I also possess a bachelor's degree in Applied Computer Science and have an eye for great UI/UX design. While my background is primarily in software, my strong understanding of system architecture, power management principles, and PCB design principles will allow me to manage this project effectively. Relevant projects: - OneKey : A platform that allows users to manage their commercial units and properties security and invitations. - Pet finder and location tagging system: A system that uses GPS to locate pets and tag their location. My approach would involve a thorough requirement gathering, component selection, schematic design, PCB layout, testing, and documentation. I will focus on ensuring Qi compliance, efficient power transfer, and robust protection mechanisms. To provide an accurate timeline, I need to know if you have specific component preferences, size constraints, or regulatory requirements. Please let me know if you have any existing design specifications or preferred components. I can start immediately once I have this information.

@abids98

I specialize in precision power electronics, and I need to point out a massive electrical trap regarding your USB-C input and switched output requirements. First, delivering 15W wirelessly requires at least 18W to 20W of input power due to inductive coupling losses. A standard 5V USB-C connection will brown out and crash the board. We strictly need to integrate a USB Power Delivery (PD) sink controller to negotiate 9V or 12V from the wall adapter. Second, Qi transmitter ICs do not naturally output a switched 5V power rail during operation; they only provide a low-voltage digital status signal. To get your "live only while charging" connection, I will design a custom active-state power gate—using the Qi IC's status pin to drive a logic-level MOSFET that switches a regulated 5V rail on and off. My Execution Plan: USB PD Negotiation: I will implement a dedicated PD sink IC to ensure the board negotiates the correct voltage and never starves the resonant tank. Active-State Power Gating: I will design the load-switch architecture to give you a clean, isolated 5V output strictly during the active power transfer phase. Turnkey Delivery: Full schematics, coil-optimized routing, Gerbers, and a sourced BOM. My turnaround time for a production-ready package is 8-12days. Before we start, I just have one question: How much current does your switched 5V output need to support? This will dictate the size of the MOSFET and the step-down regulator we use.

@electronicsdone

Dear Client, This is not just a wireless-charging PCB. The important part is making the Qi transmitter, USB-C input, coil drive, thermal behavior and “5V only when charging” output logic work together cleanly. I can help design this as a compact, buildable charger board. My approach would be: ✅ select a suitable 15W Qi transmitter controller and coil architecture ✅ design the USB-C input, power path, protection and thermal layout properly ✅ implement the controlled 5V output so it is enabled only during active charging ✅ prepare schematic, PCB layout, BOM and manufacturing files ✅ include bring-up notes for validating charging behavior and output enable logic For wireless charging, coil selection and PCB layout discipline matter as much as the IC choice. I would keep the first version practical and testable. Two quick questions: 1. Do you already have a target coil size / mechanical envelope? 2. Should the 5V output be a simple logic-controlled rail, or does it need a defined current rating? If you message me, I can suggest the cleanest charger architecture and expected turnaround. Best regards, Prat PCB Must Innovations

@abdurRafiqM

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq