KiCad Dual-Rail 70V PSU -- 2

@amelectronics

Hello, I can help you with this project. I have experience designing power supply PCBs, high-current layouts, audio electronics, and production-ready KiCad designs. I can design the dual-rail power supply with CRC filtering, proper grounding, wide copper pours for the high-current paths, UPC1237 speaker protection, compensation network, LED indicators, and all the required connectors while keeping the board within the 120 × 80 mm size limit. The layout will be optimized for low noise, manufacturability, and will pass DRC before delivery. You will receive the complete KiCad project, schematic, PCB layout, Gerber/Excellon files, BOM, libraries, and 3D models. Please share any preferred components or reference circuit if you have one, and we can discuss the design before starting.

@macroenergy

With over a decade of experience in Circuit Design and PCB Layout, I am confident in my ability to develop and deliver a robust, integrated KiCad Dual-Rail 70V PSU solution specifically tailored for your audio amplifier chassis. Having successfully worked on similar audio power applications with clean ground scheme requirements, I understand the importance of low noise which enables enhanced performance. Drawing from my expertise in Digital Motor Control, Analog Design, and Power Electronics, I assure you an efficient design approach that maximizes performance while meeting your specifications within the given footprint. My proficiency in translating electronics concept into designing circuits that reduce ringing and enhance 5020-class diode bridge mounting flexibility will be of great value to your project. Moreover, my skill in including LED in both rails further attests to my focus on providing comprehensive solutions. In terms of deliverables, you can expect a well-organized KiCad 7.x project folder with all relevant elements i.e. schematic, PCB layout, libraries and 3D models alongwith ready-to-order Gerber/Excellon set and BOM (CSV) files. My commitment to quality includes thorough testing ensuring the files open without errors and DRC passes successfully. Engaging me for this project guarantees an outstanding power supply design compatible with your audio amplifier chassis - let's get started!

@engrusmanfaiz

Hi, The main challenge is achieving a compact 120 × 80 mm layout while safely handling ±70 V at 10 A, maintaining low noise, proper grounding, and integrating the UPC1237 speaker protection without compromising thermal performance or DRC compliance. With 12+ years of PCB and power electronics design experience, I can deliver a production-ready KiCad project featuring optimized high-current copper pours, CRC-filtered dual rails, star-ground implementation, transformer snubbers, chassis-ground options, and a fully integrated UPC1237 protection circuit. I have completed similar high-current power supply, audio amplifier, and mixed-signal PCB projects with clean layouts and manufacturing-ready outputs. Regarding the budget, $180 is acceptable for the requested scope. I can deliver the complete KiCad project, Gerbers, BOM, libraries, and DRC/ERC-clean design within 7–10 days, while keeping the design fully manufacturable and ready for fabrication. Regards, Engr. Muhammad Usman PCB Pro Expert

@tshibsamuel477

Hi there, I read your offer carefully and noted the fixed maximum budget of $180. I understand that you need a compact KiCad 7.x dual-rail power-supply PCB for an audio amplifier, including CRC filtering, high-current copper paths, clean grounding, bridge-rectifier options, snubber circuitry, rail LEDs, and a complete UPC1237 speaker-protection circuit. I can deliver the schematic, PCB layout, DRC-checked KiCad files, Gerber/Excellon package, BOM, libraries, and 3D models while respecting the 120 × 80 mm board limit and mounting-hole positions. Just send me a message and we can confirm the final electrical details. Best regards, Samuel Tshibangu

@ducchunguyen

Hello Client. Many thanks for posting projects. I am familiar with the Audio rectifier power supply with low noise. With my experience I can help you finish the design with in board shape 120 × 80 and mounting hole 110x70. The layout with star connection to ground to minimal noise bulk capacitor and the speaker protection. Pls kindly chat with me if you interested. Many thanks for your time. Best regards,

@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.

@manusharma2992

With fluency in KiCad 7.x, I bring to the table a unique blend of Circuit Design, Electrical Engineering, and PCB Layout expertise. My career spans across designing several electronic devices such as audio amplifiers, which gives me an in-depth understanding of your project's needs. I've designed efficient power supplies producing clean outputs for high fidelity audio applications, just like you require. Moreover, my skills with UPC1237 speaker protection circuit and implementing low noise and clean ground strategies are well-versed from previous projects with similar demands. I excel at transforming complex technical requirements into sleek, minimalistic designs while ensuring maximum functionality. My designs have consistently been test-fit inside specified areas, meeting all specifications on time and within budget. Lastly, offering a wide range of services through CAD tools including AutoCAD and SolidWorks to name a few alongside my experience as an Electrical Engineer make me the perfect fit for this project. So why not entrust your project to somebody who will infuse it with all his passion and experience? I look forward to embarking upon this project that combines my strengths and passion in circuit design for audio amplifiers. Let's craft a compact, dual-rail power supply that lives up to your expectations and optimizes your system capaciously!

@electronicsdone

Dear Client, Most bids here will say, "I can design your KiCad PSU." But designing a 70V dual-rail, 10A low-noise audio power supply introduces hidden challenges: high-current routing, CRC filtering, grounding, thermal management, transformer ringing suppression, and production-ready PCB layout. PCB Must Innovations can help you develop your PSU using a risk-first approach, not just a PCB layout approach. With 30 years of electronics design experience, we focus on delivering reliable, manufacturable, and low-noise power supply designs. ✅ Where we will add value: 1. Optimized dual-rail power architecture with CRC filtering, clean grounding, and high-current PCB layout. 2. Complete KiCad schematic, PCB, BOM, Gerbers, DRC verification, and production-ready files. ✅ Suggestion: Finalize the transformer specifications, bridge rectifier mounting option, and chassis dimensions before PCB layout. This helps optimize thermal performance and simplifies routing. Profile: https://www.freelancer.in/u/electronicsdone ✅ Questions: 1. What transformer secondary voltage and VA rating will you use? 2. Do you prefer chassis-mounted or PCB-mounted bridge rectifiers? OOPS, Character Limit Issue. Please message me in the chat section so I can cover more aspects of your project.

@azraazeen9

As an electrical engineer with a wealth of experience in circuit design and PCB layout, I am uniquely positioned to deliver exactly what you need for your KiCad Dual-Rail 70V PSU project. I've had hands-on experience with filtering circuits, grounding schemes, and diode bridge modularization which correlate with your requirements directly. In the past, I've successfully optimized amplifier chassis designs for low noise and clean ground schemes, ensuring uncompromised audio quality. My proficiency in KiCad 7.x, schematic, PCB, libraries, and 3D modeling assures you deliverables that will exceed your expectations. I always design with future practicality in mind; thus I'll incorporate clear silkscreen labels for all parts, hearty copper pours for high-current paths and neat LED integration in both rails as desired. Rest assured, every detail you specified will be given meticulous attention while keeping within the prescribed footprint.

@sakshis576

Having been a skilled electronics and PCB designer for several years now, I have honed my skills in mastering KiCad and 3D design, which aligns perfectly with your stated project requirements. I can ensure that your dual-rail 70V power supply will be expertly laid out within the given footprint while guaranteeing maximum effectiveness and clean ground scheme to eliminate noise. My superb understanding of transformer input compensation and elimination of ringing is just what you need. By entrusting this project to me, you're not only hiring someone capable of delivering quality but also someone who values efficiency. I will deliver a KiCad 7.x project folder complete with schematics, PCB designs, libraries, accurate BOM (CSV) as well as Gerber and Excellon sets ready for manufacturing. On top of expertise in Circuit Design and Electronics, my flexible mindset gives me an edge because I'm always open to feedback and can adjust designs quickly to accommodate any changes or adjustments if necessary. With me on board, you can have confidence knowing that your project is in good hands from start to finish! Let's turn your vision into reality.

@Specgi

With over several years of PCB design experience, extensive knowledge of KiCad, and a profound understanding of electrical engineering, I am the perfect fit for your dual-rail 70V PSU project. The success of this project hinges on a clean ground scheme and low noise levels - elements that I have been trained and excelled at. Throughout my career, I have developed proficiency in creating advanced circuit designs, paying meticulous attention to detail especially in critical parts like the diode bridge and transformer input. Meeting your core requirements is paramount to me and I will strive to ensure that all aspects are met effectively. Particular areas of focus for me will be creating a dual CRC-filtered rail system, incorporating a UPC1237 speaker-protection circuit and configuring compensation resistor-capacitors to suppress ringing. In line with your specifications, I guarantee the delivery of a compact design within the agreed-upon 120x80mm area that complies with the four 3.2mm mounting holes on a 110x70 mm rectangle. Lastly, I am experienced in creating comprehensive BOMs using CSV and submitting ready-to-order Gerber/Excellon sets. This will save you valuable time in the manufacturing process. When selecting me for this project, you'll be receiving professionalism, exceptional design skills and most importantly a collaborative approach where your satisfaction remains paramount.

@alluankit01

Hi, I can design the complete KiCad 7.x dual-rail 70V PSU board for your audio amplifier, including CRC-filtered rails, clean 0V grounding, UPC1237 speaker protection, snubber network, chassis-ground option, rail LEDs, and high-current copper routing. The best solution is to first confirm transformer secondary voltage/current, capacitor sizes, fuse ratings, relay voltage, and bridge mounting preference. I’ll then create the schematic and PCB within the 120 × 80 mm limit, using wide copper pours, short rectifier paths, proper 0V convergence at the final capacitor, clear silkscreen labels, test points, and four 3.2 mm mounting holes on the 110 × 70 mm pattern. I’m comfortable with KiCad, audio amplifier power supplies, dual-rail CRC filters, 5020 bridge rectifiers, chassis-ground networks, transformer snubbers, relay protection circuits, high-current PCB layout, DRC checks, and BOM preparation. Deliverables will include: * KiCad schematic and PCB layout * Dual CRC-filtered ±70V rail design * 5020 bridge and chassis-mount option * Ground-lift network * Transformer RC compensation network * UPC1237 protection with AC sense * Rail LEDs, fuses, labels, and test points * Gerber/Excellon files * BOM CSV * KiCad libraries and 3D models The $180 maximum budget is acceptable. I’ll focus on a compact, low-noise, DRC-clean design ready for fabrication. Best regards Ankit

@Tahir789

I am a Licensed Professional Electrical Engineer with 6+ years of experience in circuit design, power electronics, and electrical engineering documentation. I have strong hands-on experience with schematic design, component selection, and BOM preparation for power supply and audio electronics projects, and I am well-versed in dual-rail power supply topologies, CRC filtering, ground scheme design, and protection circuits including speaker protection ICs such as the UPC1237. I will deliver a complete KiCad 7.x project including schematic, PCB layout within your 120×80mm footprint, Gerber/Excellon files, and a ready-to-order BOM in CSV format. The design will incorporate your dual CRC-filtered rails, 5020-class diode bridge with chassis-mount option, compensation RC network, chassis ground tie option, LED indicators on both rails, and the full UPC1237 speaker protection circuit with AC sense feed — all with clear silkscreen labeling, test points, and generous copper pours on high-current paths. DRC-clean files guaranteed before delivery. I am available immediately to start and discuss. Best regards, Tahir Saleem

@ahmaddar2970

Expert in power supply design with detailed expertise in KiCad. I’ll deliver a compact, low-noise dual-rail PSU tailored for audio amplifiers, meeting all core requirements with clear labeling and thorough testing. Your project will include a ready-to-order Gerber set, BOM, and 3D models, all within the specified footprint. What specific performance metrics or experimental results are you expecting from this power supply to ensure it meets your audio application needs?

@ElecHamza

Hi, I can design this compact, low noise dual rail power supply with integrated speaker protection in KiCad seven, fitting it within your eighty by one hundred and twenty millimeter chassis footprint. I will establish a clean star grounding scheme converging at the final capacitor, with heavy copper pours rated for ten amperes and seventy volts, alongside indicator lights on both rails. The board will feature the snubber networks, dual bridge rectifier options, and the complete UPC1237 protection circuit with alternating current sense functionality to ensure clean relay dropouts. I am comfortable with your one hundred and eighty dollar budget and will deliver a design that passes all design rule checks with ready to order manufacturing files. Best regards

@Zawiya3

Hello! I can design a reliable dual-rail 70V power supply in KiCad, delivering a clean, well-organized schematic and professional PCB layout tailored to your project requirements. I'll ensure the design includes appropriate component selection, proper voltage regulation, thermal management, and protection features such as overcurrent and reverse-polarity protection where needed. The PCB will be optimized for high-voltage safety, adequate creepage and clearance distances, and efficient routing. I have experience creating KiCad schematics and multilayer PCB layouts for power electronics, with careful attention to EMI reduction, grounding strategy, and manufacturability. Every stage of the design will be verified through electrical rule checks (ERC), design rule checks (DRC), and thorough review to minimize potential issues before fabrication. The final design will be practical, easy to assemble, and suitable for production. Upon completion, I will provide the complete KiCad project files, including schematics, PCB layout, BOM, Gerber files, drill files, and PDF documentation if required. I am committed to clear communication, timely delivery, and incorporating your feedback throughout the project to ensure the final dual-rail 70V PSU design meets your expectations and performs reliably.

@elijahhmonreal

Hi, This is exactly the type of PCB design project I enjoy working on. I understand that this isn't just a power supply—it's for an audio amplifier where low noise, clean grounding, and reliability are essential. I'll design a compact KiCad 7.x PCB that incorporates your dual CRC supply, UPC1237 speaker protection, RC snubber, bridge rectifier options, chassis grounding network, LED rail indicators, and heavy-current copper routing while keeping the layout serviceable and easy to assemble. Before completing the design, I'll verify the 120×80 mm footprint and immediately let you know if any requirement requires adjustment instead of forcing compromises. Deliverables include the complete KiCad project, fabrication-ready Gerbers, drill files, BOM, custom libraries (if needed), and 3D models. The project will be fully DRC-checked and ready for manufacturing. I'd be happy to discuss any preferred component choices before I begin.

@anjalio22

Hello, I’d like the opportunity to design your dual-rail 70V PSU PCB in KiCad. I have experience with PCB layout, power electronics, and circuit design, and I understand the importance of low-noise grounding and high-current routing for audio amplifier applications. I will design the PCB within your 120 × 80 mm constraint, including the four 3.2 mm mounting holes on the specified 110 × 70 mm pattern. The design will incorporate dual CRC-filtered rails, proper star-ground implementation, LED indicators for both rails, the UPC1237 speaker protection circuit with AC sense, compensation RC network, chassis-ground bridge option, alternate bridge rectifier footprints, wide copper pours for 10 A current paths, and clear silkscreen markings for components, test points, and fuse ratings. The final deliverables will include a complete KiCad 7.x project (schematic, PCB, libraries, and 3D models), DRC-clean design, Gerber/Excellon manufacturing files, and a CSV BOM ready for fabrication. If I identify any constraints that could affect the required footprint or thermal performance, I will discuss them with you before proceeding to ensure the best solution. I respect your stated budget and will complete the project professionally, on time, and with attention to detail. I look forward to working with you.

@mundadiya

With extensive experience in KiCad PCB design, I understand the need for a compact, dual-rail power supply meeting stringent noise requirements. My past projects include similar audio amplifier layouts. Could you provide details on the desired physical dimensions for the board to fit precisely within the amplifier chassis? Regards, mundadiya