Qi Smartphone Charger Schematic Design -- 2

@Mahihassi

As a highly skilled and experienced electrical engineer, I am confident in my ability to deliver the high-quality Qi Smartphone Charger schematic design that you need. With a Masters's degree specializing in Embedded Systems and my proficient use of Altium, KiCad, and other CAD tools, I can guarantee you a sleek, production-ready schematic that covers the full signal path as required. Moreover, my expertise with different microcontrollers and RF hardware design means I can leverage Chinese Qi reference chipsets such as TI, NXP, ST to shorten the certification process. My previous projects have included working on embedded solutions for health devices and IoT products, where safety is paramount. Hence, I will prioritize thermal and safety considerations in your device's schematic to ensure compliance with standard smartphone Qi requirements including FOD, over-temp, and over-current protection. Lastly, my full product development workflow experience stands out as an asset; from idea shaping through prototyping to finalization. And with that, my PCB design skills using Altium Designer or KiCad guarantees you a production-ready board layout that incorporates all components cited in the bill of materials.

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver complete, production-ready schematics for a family of single-device Qi wireless chargers supporting 15W, 18W, 22.5W, 30W, and 40W output all based on proven Qi transmitter chipsets with proper power path, coil driving, Foreign Object Detection (FOD), thermal protection, and USB-C input. MY APPROACH
 ✅ Phase 1: Architecture selection using reliable ICs (TI, NXP, or high-performance Chinese reference solutions like those from Injoinic or similar).
 ✅ Phase 2: Full schematic design for each power level, including AC/DC front-end (or USB PD input), inverter stage, resonant tank tuning, current/voltage sensing, and safety circuits. 
✅ Phase 3: Detailed BOM with readily available parts, design notes, coil specifications, and test points. DELIVERABLES 
• Complete schematics (KiCad preferred, Altium available) for all 5 power variants 
• Consolidated BOM with manufacturer part numbers and availability notes 
• Design notes covering component selection, tuning values, thermal considerations, and firmware hooks 
• Suggested test points and basic bring-up procedure QUESTIONS 1 Do you prefer KiCad or Altium as the native format? 2 Is the input strictly USB-C PD (with negotiation) or also support for standard 5V/9V/12V adapters? 3 Any strict size constraints for the final PCB? Ready to start immediately. I can deliver the first schematic (15W base) within 2–3 days after confirmation.

@azraazeen9

As an expert in electrical engineering and electronics, I have ample experience in designing and analyzing Bill of Materials (BOM) for various projects. I have worked extensively with Altium and KiCad which makes me perfectly capable of delivering the clear, production-ready schematic you need. Moreover, my work is not done until it passes all necessary checks, ensuring that the BOM is available and design adheres to Qi specifications. In terms of your request for leveraging proven ICs, I have direct experience with NXP and ST chipsets which give me a hands-on understanding of their capabilities. My familiarity with these products is bound to substantially reduce your certification timeline, offering you added peace of mind. Additionally, my skills in thermal and safety considerations align perfectly well with your project needs—ensuring compliance with over-temp, over-current, and FOD guidelines. Beyond my skills, I also appreciate the importance of effective communication in executing projects successfully. My fluent English communication guarantees that we will be on the same page throughout the project duration. Overall, my expertise would generate a meticulously designed Qi Smartphone Charger Schematic—meeting all your power requirements while enhancing overall safety and efficiency. Please let me know when I can begin assisting you in this exciting project!

@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

@shenglin0617

Hello, Your project matches my experience very well. I have strong background in power electronics, embedded hardware design, RF/power PCB layout, and production-oriented schematic development including wireless charging architectures and JLCPCB manufacturing preparation. I can develop complete Qi transmitter schematics for 15W / 18W / 22.5W / 30W / 40W variants using proven Qi controller solutions from TI, NXP, ST, or reliable Chinese Qi chipsets depending on your cost and certification targets. The design will include the full power path from AC/DC front end to coil driver, resonance tuning network, FOD protection, thermal management, current protection, and bring-up test points. You will receive: - Production-ready schematic in Altium - Clean BOM with distributor-ready part numbers - Coil and resonance tuning recommendations - Thermal and safety design notes - PCB layout guidance for EMI and efficiency - Manufacturing-ready support for JLCPCB if required I focus on practical, manufacturable designs rather than reference-copy work. My goal is to provide a stable platform that can move directly into PCB layout, prototype validation, and future certification with minimal redesign risk. I would be glad to discuss chipset selection, power architecture, and thermal strategy for each power class before starting. Best regards

@Vermapratham1234

With over 5 years of experience in Electrical Engineering and Prototyping, I'm confident that I can deliver a top-notch Qi Smartphone Charger schematic design for you. Your project requires precise knowledge of the signal path, semiconductor chipset selection, thermal management, safety precautions and more – all of which I have hands-on experience with. In my past projects, I've had ample opportunities to work with popular reference ICs from TI, NXP, and ST - making me well-equipped to meet your preference for leveraging trusted chipsets. Shipping complete and comprehensive projects is my forte as I understand the need for a finely-tuned schematic, optimal bill of materials and detailed design notes to smoothen subsequent stages like PCB layout and prototyping. I've also worked extensively on Altium and KiCad - two CAD formats you've mentioned - making it easier for us to collaborate seamlessly throughout the project’s timeline. Bottom line: I construct systems driven by results, combining cutting-edge technology with utmost precision in order to guarantee a design that aligns perfectly to your vision while meeting all required certifications. Let's get started on electrifying your Qi Charger!

@letswork92

As an experienced Full-Stack Developer with over 12 years in embedded systems and wireless technologies, I understand your need for a comprehensive schematic design for a Qi-compatible smartphone charger. Creating a safe and efficient charging solution across multiple power levels is crucial for market competitiveness. My expertise includes working with automotive-grade components from TI, NXP, and ST, ensuring that any design leverages proven ICs to streamline your certification process. I will provide you with a detailed production-ready schematic using Altium or KiCad, along with an organized bill of materials featuring readily available parts. My design notes will cover crucial aspects like component choices and thermal management to meet Qi standards. To ensure the effectiveness of the project, could you please specify if there’s a particular chip or controller you prefer? This information will help tailor the design to best suit your requirements. Looking forward to collaborating on this innovative project!

@abhinavv370

Hello, I’m an Electronics and Embedded Systems developer with practical experience in PCB design, circuit development, microcontrollers, power electronics, and hardware prototyping. I have worked on ESP32, Raspberry Pi, IoT systems, and complete hardware integration projects, including schematic development and prototype design. For your wireless charging project, I can assist in developing a complete, production-oriented schematic with: 1. AC/DC front-end and power stage design 2. Qi transmitter architecture implementation using proven reference ICs 3. BOM preparation with readily available components 4. Design notes covering component selection and tuning considerations 5. Protection and safety features (thermal, over-current, FOD considerations) 6. Test points and validation considerations for bring-up and prototyping I understand the importance of power efficiency, thermal management, resonance tuning, and PCB considerations in wireless power systems. I maintain clear communication and provide regular progress updates throughout development. I would be happy to discuss your required power variants (15W / 18W / 22.5W / 30W / 40W) and project scope in more detail. Best regards, Abhinav Vats

@rajkumarr2511

Hello, We’re an experienced electronics design team with 5–10+ years in PCB design, power electronics, and embedded hardware development using Altium and KiCad. We can design the complete Qi-compatible wireless charger schematic covering the full signal path: AC/DC front-end, power regulation, transmitter controller, coil driver, resonance tuning, FOD, over-temp, over-current protection, and test points. Deliverables include: ✅ Production-ready schematic files ✅ BOM with readily available parts ✅ Design notes (coil specs, tuning values, thermal/safety considerations) ✅ Firmware guidance if required ✅ Variants for 15W / 18W / 22.5W / 30W / 40W We have experience with TI, NXP, ST, and Chinese wireless charging chipsets and focus on practical, manufacturable designs—not just schematic drafting. Note: universal Qi compatibility at 30W/40W may require proprietary fast-charge implementations, and we can architect accordingly. We can also support PCB layout and prototyping if needed. Rajkumar & Team

@muhammaddanish35

As a committed Electrical Engineer with expertise in BOM Analysis, I can leverage my skills and knowledge to provide you with a high-quality schematic design for your Qi Smartphone Charger. Building on my vast experience of 8+ years, I have developed an impeccable attention to detail and a deep understanding of electrical systems like HVAC, Plumbing, Fire Fighting that will be useful for this project. In addition, I have a profound knowledge of TI, NXP, ST along with the Chinese Qi reference ICs which would be instrumental in speeding up your certification timeline. My familiarity with these proven ICs enables me to make efficient component choices, coil specifications and suggest necessary firmware hooks for cost-effective yet safe circuit design. I understand the critical need for precision in meeting the standard smartphone Qi requirements; such as FOD, over-temp and over-current protection which I ensure through careful consideration of thermal and safety factors in the design process. My dedication to delivering accurate work within deadlines has always been lauded by my clients. So if you are looking for a detail-oriented professional who is genuinely invested in providing you extensive design notes with clear tuning network values and firmware hooks including suggested test points for power transfer validation; then look no further. I am ready to bring your project to life!

@mubashir021

I understand the importance of delivering a comprehensive schematic design for your Qi smartphone charger project. With a focus on safety and performance, I will ensure that the design meets all necessary specifications for different power outputs ranging from 15W to 40W. My approach includes creating a production-ready schematic in a commonly used CAD format, complete with a detailed bill of materials featuring readily available components. I have extensive experience working with automotive TI and NXP chipsets, which will aid in leveraging proven ICs and streamline your certification process. I will also provide thorough design notes that cover component choices, thermal and safety considerations, and suggested test points for effective verification. My commitment to quality and clear communication will ensure a smooth handover for PCB layout and prototyping. I'm excited about the opportunity to contribute to your project and look forward to discussing the details further.