KiCad Buck & Relay Upgrade

@iamhamzazaki

With an extensive background in hardware and firmware development, I offer comprehensive expertise in PCB design and integration. My broad set of skills, including circuit design and electrical engineering, perfectly align with your project requirements. More so, my ability to envision IoT product development ensures a future-proof solution that is aligned with modern day technologies. My vast experience with low-power embedded systems combined with wireless communication protocols; LoRa, BLE, Wi-Fi,5G adds another layer of value to my candidacy. I understand the importance of balancing efficiency, cost and board real-estate in your project's context and will utilise my abilities to achieve an optimal combination of these factors for you. In conclusion, choosing me as your collaborative partner entails not only access to technical skills but also to a strategic mind that identifies potential issues early and plans accordingly. By selecting me for this KiCad Buck & Relay Upgrade project, you're investing in an experienced professional whose designs are driven by performance, reliability and cost-efficiency - all while adhering to the highest standards of good EMC practice. I look forward to helping transform your project into a successfully deployed reality.

@MuhammadUzair16

Hi, I am an embedded systems engineer with over 16 years of experience taking electronic products from concept through production, including power supplies, relay controls, PCB layout, and supporting firmware. I can update your existing KiCad design with rectification and efficient 12 V/5 V regulation sized for the actual loads, then select electromechanical or solid-state relays based on switching current, lifetime, heat, and cost. I’ll integrate the new sections with appropriate protection, isolation/clearance, thermal layout, and EMC practices, then provide the updated KiCad files, production BOM, Gerbers, drills, pick-and-place data, and concise design notes. Could you share the existing project plus the required rail/load currents and clarify whether each brief 3.3 V pulse should latch the channel on, toggle it, or activate it for a fixed time? I estimate 7 days once those details are confirmed. I’d be glad to discuss the design and recommend the best implementation.

@macroenergy

With my extensive experience in circuit design, electrical engineering, and electronics, your project falls perfectly within my skill set. I've had hands-on involvement with numerous projects that required upgrading and modifying existing circuits just like yours. My broad understanding of power electronics and embedded systems enables me to create efficient solutions that take into account factors such as cost balance, board real-estate and EMC practices. Moreover, my proficiency in KiCad, Altium and other schematic design tools coupled with my firm grip on CAD files of manufacturers positions me to effectively work on your project. As a testament to the quality of my work, you will receive an updated KiCad schematic and PCB layout that is production-ready as well as a comprehensive BOM with manufacturer part numbers. Additionally, I will provide you with Gerber, drill, and pick-and-place files ready for the board house - a complete package that will aid in assembly and future maintenance. Last but not least, I've honed my skills through multiple successful projects including Digital Motor Control applications like yours. This means not only will I be able to meet the 12 V DC/5 V DC regulated rails requirements but I'll also select the best relay channels for your desired outcome after reviewing the schematic and current requirements just as you wish. Let's make this collaboration happen!

@amelectronics

Hi, I can help update your existing KiCad design by adding the 24VAC to 12V/5V power supply section and the four relay channels while keeping the layout clean and production-ready. I have experience with custom PCB design, power supplies, relay interfaces, and KiCad. I'll provide the updated schematic, PCB layout, BOM, Gerber files, pick-and-place files, and design notes. After reviewing your current project, I can also recommend the most suitable regulator and relay solution based on cost, efficiency, and reliability. I'm ready to review the existing design and provide an accurate timeline and estimate. Thanks!

@majeed219

Bolting a 24 VAC front end and four AC switching channels onto a board that already works is where proven designs get broken — rectified, that input sits near 34 V peak, and relay switching noise finds its way straight back into the digital section that used to be quiet. I'm Majeed, an embedded engineer running PCB design as a premium service. I took an industrial temperature/humidity sensor board from schematic through layout into a 500-unit production run — multilayer stack-up with a separated power return, snubbed switching stage, DFM review, China fab sourcing, and incoming QC before assembly. Why me? -> Free demo firmware included so you can pulse all four channels and verify switching before sign-off. -> Full in-house lab to load-test both rails and check ripple and thermals before handoff. -> Direct China fab vendor relationships — the savings go to you on the prototype run. -> Clean, documented KiCad project so the next revision stays cheap. -> Daily progress updates. -> 2 weeks free post-project support included. Send the project and I'll come back with a firm number and timeline. One thing first: should the 3.3 V pulse latch each channel until a second pulse, or only hold while driven?

@mairajali11

As a seasoned electrical/electronics engineer with over 8 years’ experience, specializing in circuit design for PCB layout, I'm the perfect fit for your project. My expertise extends to working with KiCad, making me more than capable of incorporating your specifications into your existing project while keeping the design clean and thermally sound, ensuring good EMC practice. In addition to my familiarity with KiCad, I have a working knowledge of EasyEDA, Eagle and Altium, making me highly adaptable for any PCB design project. Moreover, as a professional certified EasyEDA designer, you can rest assured that I can provide the highest quality designs efficiently and effectively. My detailed understanding of buck converters and relay circuitry - both solid-state and electromechanical - combined with my knack for striking the best balance of cost, efficiency & board real-estate will prove beneficial for this project. Furthermore, I value clear communication and timely execution. You will not only receive updated schematics and PCBs but also a complete BOM with manufacturer part numbers as well as detailed notes that would help future assembly and maintenance. Having earned my place among the top 1% skilled professionals on this platform attests to my commitment to delivering the best solutions on time and within budget. Let’s turn your ideas into reality —hire me today!

@cpp2048

Yes, please share the schematic as well as your new requirement to go through it before suggesting whether mech relay or solid state is preffered way to do it. snapshot for the PCB layout will also be helpful. KiCad is my tool since last 5 years so no problem.

@markoa7

This is exactly the kind of focused add‑on work I’ve done before—adding AC‑to‑DC rails and relay blocks to an existing KiCad design while keeping layout, thermals, and EMC sane. Without seeing the current board and load specs, a rough estimate for this scope would be about **8–12 hours** of work: selecting and sizing the 24 V AC → 12 V/5 V stages, choosing and integrating the four relay channels, updating schematic/layout, and generating BOM + manufacturing files. At a typical rate in the $40/hour range, that puts the ballpark around $480. To tighten that estimate, I’d need: - Expected load on 12 V and 5 V rails - Per‑channel current for the 24 V AC relays - Any clearance/creepage requirements and board thickness Once I’ve looked over the KiCad project and those details, I can give you a firm cost and timeline.

@tshibsamuel477

Hi there, I read your offer carefully and understand that you need two new sections added to an existing working KiCad board: a 24VAC input power section generating regulated 12VDC and 5VDC rails, and four relay output channels triggered by brief 3.3V pulses to switch the 24VAC line to loads. I can review the current KiCad schematic/layout, recommend buck modules vs discrete regulators, select suitable relay or solid-state switching devices, update the schematic and PCB layout, check thermal/EMC/clearance constraints, and deliver the BOM, Gerbers, drill files, pick-and-place files, and design notes. My experience with KiCad PCB design, power regulation, relay/SSR control, AC switching, embedded hardware, protection circuits, and production-ready documentation fits this project well. Just send me the existing KiCad project and I can review it before confirming the final cost and timeline. Best regards, Samuel Tshibangu

@ahsanfreelancer7

Hi, Hope you are well. It sounds like a great job and aligns with where I'd like to take my career. I'm eager to learn more. I have experience over the past fifteen years as a PCB Design Engineer at Global Engineering services and RWR Private Ltd. You can visit my freelancer profile page; https://www.freelancer.com/u/ahsanfreelancer7 I’ve been consistently committed to Specific goals, skills or traits the new job entails. Could we schedule some time to discuss about opportunity in more detail? I’d welcome the opportunity to learn more about the role and share how my skills and experiences would benefit you. I’m available to talk at any time. I look forward to speaking with you. Best, AHSAN ULLAH

@Adeel2k14

I am an Electronics Design Engineer with extensive experience specializing in KiCad PCB layout, power conversion, and relay interface circuits. I can seamlessly integrate the 24 V AC input step down power rails and four 3.3 V pulse controlled relay channels into your existing project while ensuring strict EMC compliance and clean thermal management. ​For the power section, I recommend compact switching regulators to deliver 12 V DC and 5 V DC efficiently while minimizing heat and board area. For the relay channels, solid state relays will offer long term reliability and silent AC load switching. ​Deliverables include: ​1- Updated KiCad schematic and layout. 2- ​Complete production BOM with active manufacturer part numbers. 3- ​Fabrication ready Gerbers, drill, and position files. ​4- Comprehensive design, EMC, and assembly notes. ​I estimate completing this within 5 days for 130 dollars upon reviewing your project files and load requirements.

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will cleanly expand your existing working KiCad board with a dual-rail power section (24 V AC → regulated 12 V DC + 5 V DC) and four pulse-triggered relay channels that switch the 24 V AC line, keeping the design compact, efficient, and EMC-friendly. MY APPROACH ✅ Phase 1: Review your current schematic, layout, and reserved pins; select the best power solution (integrated buck modules preferred for cost/space/efficiency) and relay type. ✅ Phase 2: Add the new sections with clean placement, proper clearances, thermal paths, and signal integrity. ✅ Phase 3: Full DRC/ERC, generate production files, and deliver a ready-to-fabricate package. RELEVANT PROJECTS - KiCad power-supply + multi-relay expansions for industrial and AC-load control boards. - Expert in mixed 24 V AC / low-voltage designs, buck regulators, and pulse-driven switching. DELIVERABLES - Updated KiCad schematic + PCB layout - Complete production BOM with manufacturer part numbers - Gerber, drill, and pick-and-place files - Brief design notes for assembly and maintenance QUESTIONS 1. Can you share the current KiCad project files now? 2. What is the expected continuous current per relay channel and total load? 3. Any preferred board thickness, clearance constraints, or preferred relay type (SSR vs electromechanical)? Ready to start immediately. Typical turnaround 2–3 days after receiving the files. I’ll flag any issues early.

@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!

@hayat38402

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas:  Antenna Design (CST, HFSS)  Embedded C Programming.  VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.

@leonidye

Hi, Your KiCad upgrade project aligns well with my experience in industrial power electronics and production-ready PCB development. I have extensive experience designing AC/DC power stages, high-efficiency buck converters, relay control circuits, and EMC-compliant PCB layouts. I can review your existing KiCad project and integrate regulated 12VDC and 5VDC rails from the 24VAC input, selecting either compact buck modules or a discrete solution based on efficiency, thermal performance, board space, and BOM cost. For the relay section, I will implement four reliable 3.3V-triggered channels to switch the 24VAC load, recommending either electromechanical or solid-state relays after reviewing your load requirements and duty cycle. The updated layout will maintain proper creepage, isolation, thermal management, and manufacturability. Deliverables include the updated KiCad schematic and PCB, production-ready BOM with manufacturer part numbers, Gerbers, drill, pick-and-place files, and design notes covering power architecture, relay operation, and assembly recommendations. The design will be delivered with clean ERC/DRC checks and ready for fabrication. Please share the existing KiCad files, and I can review the design immediately before confirming the final implementation. Regards,

@debosx

Hello! I'm a highly skilled PCB Designer with over 10 years of expertise in delivering reliable and efficient PCB designs. I specialize in creating precision designs tailored to client's needs, utilizing top-tier design tools such as Altium Designer, Autodesk Eagle, KiCad, EasyEDA, Siemens PADS, DipTrace, Allegro/OrCAD, Fritzing and Proteus. My goal is always to ensure the highest quality and performance in every project. Core Expertise : • Schematic Capture & Layout Design • Component Selection & Library Management • Reverse Engineering (PCB Replication, PCB Cloning) • Gerber, BOM, and CPL File Generation & Manufacturing Support • Design for Manufacturability (DFM) and Design for Assembly (DFA) • PCB Design & Development (Single, Double, Multi-Layer, Flexible PCBs) Industries Served : • Medical Devices • Telecommunications • Consumer Electronics • Industrial Equipment • Automotive Electronics • Safety and Security Devices Why Choose Me? • Attention to Detail and Commitment to Quality • Strong Communication Skills & Client-Centric Focus • Timely Delivery & Flexible Approach to Meet Project Requirements I would love to help you with your next PCB design project. Feel free to reach out, and let’s discuss how I can bring your ideas to life! Best Regards, Utpal

@yaroslavmark

Hi, I am a Senior PCB Design Engineer with 7+ years of experience in power electronics, IoT, and embedded hardware, having delivered 100+ production-ready PCB designs using KiCad and Altium, including DC/DC converters, relay control boards, and mixed-voltage systems. I will review the existing KiCad project and upgrade the design with reliable power conversion and relay switching sections while maintaining EMC, thermal, and manufacturing requirements. Approach: ✅ I will analyze the current schematic, PCB stack-up, power requirements, and reserved areas to select an optimized 24VAC-to-12V/5V buck solution using either modules or discrete regulators. ✅ I will design the four relay channels with proper drivers, protection components, isolation, creepage/clearance, and AC load switching considerations. ✅ I will update the KiCad schematic and PCB layout with clean placement, routing, thermal management, and generate production files including BOM, Gerbers, drills, and pick-and-place data. ✅ I will perform final design checks and provide documentation notes for assembly and future maintenance. Questions: ✅ I would like to confirm the required current ratings for the 12V and 5V rails and the maximum AC load current for each relay channel. ✅ I would like to know the preferred relay type constraints, PCB size limitations, and required isolation/clearance standards. Best, Yaroslav

@Mahmoud00Ibrahim

Hi, I can definitely help with this update. Since the base design is already working, the focus will be on integrating the new power supply and relay sections while keeping the PCB compact, thermally efficient, and EMC-friendly. For the power stage, I’ll review the available board space and expected loads before recommending either high-efficiency buck converters or a discrete solution based on cost, performance, and manufacturability. For the relay outputs, I’ll evaluate the load current and switching requirements to determine whether electromechanical relays or SSRs are the better fit. The 3.3 V trigger interface and 24 VAC switching will be designed for reliable operation and proper isolation. Deliverables will include the updated KiCad schematic and PCB, production-ready BOM with manufacturer part numbers, Gerbers, drill files, pick-and-place files, and design notes. Estimated cost: $180–$300 USD (depending on the complexity of the existing design and component selection). Estimated timeline: 2–4 days after receiving the KiCad project and confirming the requirements. Before starting, I’d like to confirm: * Maximum current required for the 12 V and 5 V rails. * Maximum AC voltage/current each relay channel will switch. * PCB dimensions, layer count, and board thickness. * Any height restrictions or preferred components/manufacturers. Once I review the existing project, I can provide a fixed quote and final delivery schedule.

@mzdesmag

Hello sir, Did go through your job description and glad to share that I have enormous experience in working with KiCad Buck & Relay Upgrade I'm a seasoned programmer and Engineer with quality experience in Flutter, React, Node.JS, SpringBoot, Frontend and Backend Development, Python, Matlab, R studio, C, C++, C#, OpenCV, OpenGL, Tesseract OCR, google vision, Statisticaal programming/R progamming data analysis Computing for Data Analysis Time Series & Econometric, Machine learning, AI, Deep learning, Matlab and Mathematica, 3D modeling, CAD/CAM,AutoCAD, 2D, Architectural Engineering, SolidWorks, Unity 3D, PCB, Electronics, Arduino, Automation, Embedded and Firmware , IOT, Electrical/Mechanical Engineering I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/mzdesmag. Looking forward to potentially working together on this project. Thanks and Best regards, Adekunle.