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I need a seasoned power-electronics engineer to take my concept for a small, isolated flyback switching power supply and turn it into a production-ready design for a consumer-electronics product. The supply must accept 230 V AC nominal but remain stable across the full universal range of 85–265 V AC. On the secondary side I want three rails—12 V, 5 V, and 3.3 V DC—sharing roughly 3–4 W total. Exact current splits can wait until you help me finalise the power budget. Compact size is the top priority, so I expect smart component selection, tight transformer design, and a PCB layout that keeps both footprint and height to an absolute minimum while still meeting creepage, clearance, and EMI/EMC requirements. Although efficiency and low standby losses matter (this will run continuously and must stay cool), I will trade fractional points of efficiency for measurable volume savings if needed. I have no brand or model bias for the controller IC, MOSFET, transformer core, or magnetics—please propose parts you trust for cost-effective mass production. Keep the bill of materials realistic for high-volume sourcing. Deliverables I’m expecting: • Complete schematic with calculated component values • Optimised PCB layout (Gerbers + native files) ready for manufacturing • Transformer specification and winding guide suitable for automated production • Annotated bill of materials with multiple sourcing options where possible • Simulation or bench data demonstrating regulation, efficiency, standby draw, ripple, and thermal performance • Brief design report outlining safety compliance (reinforced isolation, surge, conducted and radiated EMI strategy) If you have handheld-electronics experience and can squeeze every cubic millimetre out of a flyback while keeping it safe and affordable, let’s discuss your approach and timeline.
Project ID: 40662108
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16 freelancers are bidding on average ₹7,641 INR for this job

Hi there, I have carefully reviewed your isolated flyback power-supply requirements and can handle the complete design from power budgeting and transformer calculations through schematic, compact PCB layout, BOM, safety strategy, and production documentation. With nearly five years of experience in mechatronics, power electronics, PCB design, AC/DC conversion, magnetics, EMI/EMC, and thermal considerations, I can develop a compact 85–265 VAC flyback supply providing 12 V, 5 V, and 3.3 V at roughly 3–4 W total while maintaining proper reinforced isolation, creepage/clearance, surge protection, and low standby loss. I can also provide the transformer winding specification, manufacturing files, sourcing alternatives, and validation data for ripple, efficiency, standby power, and thermal performance. Please send me a message so we can finalize the output-current split, size constraints, safety class, and target cost. Best regards, Samuel tshibangu
₹7,000 INR in 7 days
6.5
6.5

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!
₹11,000 INR in 5 days
5.9
5.9

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
₹12,500 INR in 10 days
5.5
5.5

Hello, I’m a Senior Electronics & Embedded Engineer with a Master’s degree in Electrical/Electronics Engineering and over 8 years of experience in electronics design and development. My core expertise includes: • Analog and digital circuit design • Embedded systems and firmware development using STM32, ESP32, and microcontrollers • FPGA and VHDL development • DC-DC and DC-AC converter design • Power electronics and power supply design • PCB design using Altium Designer • Signal processing and hardware development • Circuit simulation using LTspice and PSpice • Hardware debugging, testing, and optimization I can handle projects from requirements analysis and initial concept through circuit design, simulation, PCB design, firmware development, prototyping, testing, and final documentation. My focus is on delivering practical, reliable, and production-oriented engineering solutions that meet project requirements and real-world constraints. Examples of my previous projects and technical work are available in my portfolio, where you can review my experience and capabilities.
₹6,000 INR in 4 days
4.9
4.9

As a seasoned electrical engineer, specialized in designing circuitry and PCBs, your flyback switching power supply project aligns greatly with my professional expertise. I have a firm grasp of power electronics, having worked on numerous projects of similar nature throughout my career. My strength lies in efficiently turning concepts into reality, which demands smart component selection, meticulous transformer design, and compact PCB layouts; all areas that you've identified as vital to this project's success! I pride myself on being both practical and innovative in my designs and sourcing strategies. I completely understand your need for affordable mass production materials without compromising on quality. Being well-versed with various controller ICs, MOSFETs, transformer cores, and magnetics, I will propose the most reliable yet cost-effective components for accommodating your dynamic power needs. Moreover, I excel at insulated designs that uphold stringent safety guidelines, crucial for high voltage systems like yours. My capability extends to incorporating AI into hardware, making sure they interact seamlessly to enhance the overall productivity. With an illustrious track record of optimizing space while ensuring safety and efficiency in even the tightest of spaces, I'm confident that choosing me as your partner on this venture can help you build your compact flyback SMPS with finesse and success.
₹7,000 INR in 7 days
4.8
4.8

Hi, I can help convert your compact isolated flyback SMPS concept into a production-ready power design with schematic, PCB layout, transformer specification, BOM, and validation documentation. My approach will be to first finalize the power budget, rail current requirements, safety targets, size constraints, and preferred production requirements. Then I’ll design the flyback topology, select controller/MOSFET/magnetics, calculate component values, optimize the PCB layout, and prepare manufacturing documentation. I’m comfortable with: * Flyback SMPS design * Universal AC input power supplies * Isolation and creepage/clearance design * EMI/EMC considerations * Transformer specification * Power PCB layout * BOM optimization * Simulation and regulation analysis * Thermal and ripple evaluation Deliverables: * Complete schematic * Calculated component values * Transformer winding specification * Optimized PCB layout * Gerbers and native files * Production BOM * Design notes * Safety/EMI strategy report * Validation test plan I’ll focus on a compact, safe, and cost-effective design suitable for consumer electronics production while maintaining reliable operation across the required input range. Best regards Ankit
₹5,000 INR in 1 day
3.9
3.9

Hello, We can develop your compact isolated flyback supply from the power architecture through the production-ready PCB, with the primary focus on minimum size, safe isolation, low standby consumption and reliable continuous operation. We will first finalize the power budget for the 12V, 5V and 3.3V rails, then select the flyback controller, MOSFET, transformer core and secondary components based on efficiency, availability and volume-production cost. The transformer will be calculated and documented with the required turns, wire specifications, insulation and winding arrangement. The PCB will be optimized for minimum footprint and height while maintaining appropriate creepage/clearance, thermal management and EMI-conscious routing. We will also provide the required calculations, BOM with sourcing alternatives, Gerbers, native design files and production documentation. Timeline: 7 Days Budget: ₹8,000 (Negotiable after confirming the final output-current requirements and prototype/bench-testing scope.) Before starting, we'd like to confirm the maximum current required on each output rail, PCB size/height limitations, isolation/certification target and whether physical prototype testing is included. We can start immediately and provide regular progress updates throughout the design. Regards, M&C Eng
₹8,000 INR in 7 days
2.6
2.6

Hi, I’m a BE Electronics Engineer with practical experience in electronics and circuit design, and I can help turn your 3–4 W isolated flyback concept into a compact, production-focused design for 85–265 V AC input with 12 V, 5 V and 3.3 V outputs. I can handle the topology and power-budget calculations, controller/MOSFET and component selection, transformer design and winding specification, complete schematic, compact PCB layout with proper creepage/clearance, production-ready Gerbers/native files, realistic BOM with alternative sourcing options, and design documentation covering efficiency, ripple, standby losses, thermal behaviour and EMI/EMC considerations. I will focus strongly on reducing PCB size while maintaining safe reinforced isolation and reliable continuous operation. I’m ready to discuss your required output currents and mechanical constraints and start immediately.
₹9,000 INR in 2 days
0.8
0.8

i can make electrical system as i am electrical engineer and make projects of electrc systems and power systems
₹1,500 INR in 6 days
0.0
0.0

Hi i have more than 12 years experienced in circuit design and development in my past i have designed lot power SMPS for companies i can designed best way under emimec
₹7,000 INR in 7 days
0.0
0.0

Hello, I'm bharghav, an electrical engineer with a decade of experience specifically focused on matching job skills with project requirements. I have a solid background in power electronics, making me well-suited for your compact flyback switching power supply design. I understand that you need a reliable design that accommodates 230 V AC and covers a universal range of 85–265 V AC, with three DC rails at 12 V, 5 V, and 3.3 V. My approach will prioritize compactness through smart component selection, a tight transformer design, and an optimized PCB layout that adheres to necessary creepage, clearance, and EMI/EMC standards. I’m committed to balancing efficiency with volume savings, ensuring your product remains cool and effective. Let’s chat about your vision and how we can refine the power budget while selecting the best components for mass production. I am eager to discuss the specifics of the project further. Best regards, bhargav922002
₹8,750 INR in 3 days
0.0
0.0

I have experience designing compact power electronics and isolated SMPS circuits, including transformer-based power supplies and safety-focused PCB layouts. Your flyback project requires careful attention to isolation, EMI, transformer design, and compact production-ready implementation. I can develop the complete schematic, transformer specification, PCB layout, BOM, and design report covering regulation, efficiency, standby losses, thermal considerations, and EMI strategy. I will focus on a reliable design suitable for cost-effective mass production. I estimate 12–15 days for the complete design package with regular progress updates.
₹12,500 INR in 8 days
0.0
0.0

With a specialization in PCB design and circuit development, combined with in-depth knowledge of lithium-ion battery packs and thermal management, I am the perfect fit for your Flyback SMPS project. My hands-on experience in the development of custom battery packs has honed my skills in dealing with constrained spaces while ensuring optimal power distribution and signal integrity. Such expertise will enable me to meet your need for a compact design without compromising functionality or safety. Having survived the hurdle of mass production during my various ventures, I can assure you that I always aim for designs that are not only cost-effective but sourced from highly reliable sources. With my extensive network in the industry, I can offer you multiple sourcing options where possible, making procurement and production smoother for you. Moreover, my focus on the entire hardware lifecycle matches well with your demand for deliverables as it means I maintain meticulous records during the design process, always keeping Gerber files as well as the native files handy. With all these boxes ticked, I'm confident that not only can I bring life to your concept but we can also engage in a valuable collaboration that keeps your unique needs forefront throughout the project duration and successfully streamlines us from concept to production-ready design.
₹7,000 INR in 7 days
0.0
0.0

Hi, I'm an experienced power-electronics engineer with deep expertise in isolated flyback SMPS design, PCB layout, and simulation. I can take your concept and deliver a compact, production-ready design with full documentation. My Upwork profile (Paul.P) has earned over $300,000 on Upwork, reflecting consistent client satisfaction. Best regards, Paul.
₹10,000 INR in 7 days
0.0
0.0

Jodhpur, India
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