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We are looking for an experienced Power Electronics Engineer / PCB Design Engineer to design three high-power solar inverter systems from scratch: On-Grid (Grid-Tie) Inverter Off-Grid Inverter Hybrid Inverter Power rating: 30kW to 50kW — this is industrial-scale, three-phase equipment, not a residential 1-5kW unit. We need engineers who have specifically worked at this power level before. We will start with one inverter type first (to be confirmed after proposals), then move to the others upon successful completion. We have reference datasheets/manuals from existing market products (ASHAPOWER, TruePower, UTL, Waaree, etc.) that will be shared as benchmarks for specs and features. The design itself must be original/from scratch — not a copy of any existing product. Deliverables Required Full schematic design PCB layout Gerber files (manufacturing-ready) BOM (Bill of Materials) with part numbers, quantities, and suppliers Top/bottom view and 3D render images of the PCB Design files in native format (Altium / KiCad / Eagle / OrCAD) Scope Notes (Hardware Only, Unless Stated Otherwise) This is a hardware design job (schematic + layout + Gerber + BOM), not firmware. If you also do embedded firmware (C/C++ for microcontroller — MPPT logic, protection, monitoring), please mention it separately in your proposal with separate pricing — we may hire this as a second phase. Required Experience Proven prior experience designing DC-AC inverters or solar MPPT circuits at medium-to-high power levels (10kW+, ideally 30kW+ or industrial three-phase systems) Must be able to show past project proof (portfolio, redacted schematics, or reference designs) Strong understanding of: MPPT (Maximum Power Point Tracking) High-power switching stages (IGBTs, not just MOSFETs — typical at this wattage) Filter design (inductors/capacitors) for clean sine wave output Three-phase output topology Battery Management System (BMS) integration for off-grid/hybrid units Safety/protection circuitry (overcurrent, overvoltage, thermal, isolation) Experience with Indian certification standards (BIS) is a plus; mention if you also have CE/UL experience Questions to Answer in Your Proposal Have you designed an inverter at 30kW or higher before? Please share proof/examples. What tool do you use — Altium, KiCad, Eagle, or OrCAD? Do you offer firmware as well, or hardware only? What is your estimated timeline for schematic + layout + Gerber + BOM for one inverter type at this power level? How many design revisions are included in your quote before additional charges apply? Can you confirm single-phase or three-phase output — and do you recommend three-phase at 30-50kW? What is your quote for one inverter type (hardware only) and for all three types combined? Budget & Timeline Please quote based on your experience — at 30-50kW, expect meaningfully higher cost and longer timelines than typical small residential (1-5kW) inverter designs, due to IGBT-based high-power switching, thermal design, and three-phase complexity. Realistic ballpark for reference only (subject to your actual quote): schematic + layout + Gerber + BOM at this power range is typically several multiples of small-inverter pricing — please provide your own detailed quote rather than relying on a generic range. We are open to discussing milestone-based payment (e.g., schematic approval → layout → Gerber/BOM delivery). How to Apply Please include: Relevant past projects (especially anything 10kW+, ideally 30kW+, or three-phase) Tools you use Your quote and timeline Whether you can also do firmware, separately quoted Note: We will confirm exact specs (input voltage range, MPPT channel count, certification target, display/monitoring requirements, quantity — prototype vs. mass production) with shortlisted candidates before finalizing the contract.
Project ID: 40578835
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17 freelancers are bidding on average ₹503,559 INR for this job

With over a decade of extensive experience in various domains of Electrical, Industrial, and Embedded Systems Engineering, I have developed a high level of proficiency in almost any project related with Power Electronics and Product Designing. I have successfully designed various high-power systems including AC/DC converters, DC-AC inverters, battery chargers and SMPS-based designs. My strong understanding of MPPT, high-power switching stages, filter design, three-phase output topology and battery management system gives me an unparalleled perspective on your project's requirements. I am well-versed in industry standards like Altium, Orcad, KiCad, Easyeda and MATLAB; hence choosing the right tool for the job won't be a problem for me. I specialize in schematic design, PCB layout and Gerber file creation as per manufacturing standards and would be capable of delivering top/bottom view along with 3D render images of the PCB. To address your specific queries: 1) I have indeed designed inverters at 30kW power level previously. I can provide you with my portfolio that showcases these designs. 2) My primary tool is Altium but I am well adapted to work on Eagle or KiCAD. 3) As stated earlier, I am qualified to handle not only hardware but also firmware needs — from the initial stage of layout design till final MCU implementation. 4) In respect to timeline; one inverter type at this power capacity will generally take around 4-6 weeks.
₹1,000,000 INR in 30 days
7.5
7.5

Hi there, I read your offer carefully and understand that this is an industrial 30–50kW three-phase inverter project requiring complete hardware development, including schematic design, PCB layout, IGBT power stages, MPPT, protection, filtering, BOM, and manufacturing files. My background includes power electronics, PCB design, embedded control, converter systems, protection circuitry, and hardware prototyping. I can support the project using Altium Designer and work through clear milestones, starting with one inverter architecture before expanding to the remaining designs. I can also support embedded C/C++ firmware for MPPT, monitoring, and protection as a separate development phase. Please send me a message so we can review the exact electrical specifications, timeline, and project scope. Best regards, Samuel Tshibangu
₹550,000 INR in 7 days
6.4
6.4

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!
₹550,000 INR in 7 days
5.9
5.9

With a rich and diverse background in industrial Automation and Electrical Engineering, I believe I am the perfect fit for your Power Electronics / PCB Design project. Not only have I worked extensively with high-power systems in industrial settings, including Wastewater Treatment Plants and Energy Automation projects, but I also have significant experience with CAD/CAM, Devre Tasarımı, Elektronik, and many other applicable skills. I'm well-versed in Siemens TIA Portal program and the Simatic Manager program—critical tools that will come handy for your inverter design project. Having previously written system software, drawn Electrical Projects using E Plan P8 V2.6 program, and executed automation tests in challenging environments, I understand what it takes to deliver high-quality work within a defined timeline. Though my past projects may not be directly related to solar inverters; however, my multi-faceted experience renders me versatile enough to approach new horizons confidently. Command over programming languages like C/C++ has equipped me to not just carry out hardware design but firmware as well if required. To sum it up: when it comes to your Power Electronic/PCB Design needs, trust me—I've got the power! Length: 859chars
₹550,000 INR in 7 days
5.4
5.4

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
₹550,000 INR in 7 days
5.2
5.2

Hello, I'm interested in this project and would like to share my background before addressing your specific questions. I hold a Master's degree with a thesis focused on DC-DC converter design and analysis, and I've published several papers covering both DC-DC and DC-AC converter topologies. This gives me a strong theoretical foundation in switching power stages (including inverter topologies), magnetic design, control loop stability, MPPT concepts, and thermal/protection design — all of which directly apply to your inverter architecture. You can review relevant design work in my portfolio. Answering your questions directly: 30kW+ inverter experience: My published research includes DC-AC converter topologies alongside DC-DC converter design, giving me solid theoretical grounding in inverter switching stages and control. My hands-on freelance project history has centered more on DC-DC systems; Tools: Altium. Firmware: Yes, I can also handle embedded firmware (MPPT logic, protection, monitoring) — happy to quote this separately as Phase 2. Timeline: Would need your confirmed specs (voltage range, MPPT channels, certification target) to give an accurate schematic+layout+Gerber+BOM timeline. Revisions: [To be specified — commonly 2 included revisions is standard, adjust per your quote.] Phase output: Three-phase is the right call at 30-50kW for balanced loading and smaller filter components per phase. Quote: Would prefer to finalize after confirming exact specs, but happy to discuss a milestone-based structure (schematic approval → layout → Gerber/BOM). I'd welcome the opportunity to discuss further and demonstrate how my converter design background translates to this scope. Best regards
₹300,000 INR in 30 days
5.0
5.0

Hi, I can design the hardware platform for a 30–50kW three-phase solar inverter, including the power stage, MPPT front end, gate drivers, sensing, protection, control interfaces, thermal strategy, schematic, PCB layout, BOM, and manufacturing files. My recommended approach is to begin with one inverter type and freeze the DC input range, MPPT channels, grid/battery requirements, cooling method, protection targets, and certification scope. I’ll then complete topology selection, IGBT/module sizing, DC-link design, isolated gate drive, current/voltage sensing, LCL/output filtering, auxiliary supplies, BMS/grid interfaces, and fault protection before layout and DFM review. I work with [Altium/KiCad/OrCAD] and can provide genuine evidence of my relevant high-power inverter work: [insert your real 10kW–50kW project]. Deliverables will include: * Full schematics * Multiboard PCB layouts * Gerber, drill, and assembly files * BOM with suppliers * 3D PCB renders * Protection and thermal design notes * Native editable files * Two design revisions I recommend three-phase output at this power level. My hardware-only quote for the first inverter is ₹8,50,000 with an estimated 10–12 week timeline. Firmware can be quoted separately if required. Best regards Ankit
₹100,000 INR in 20 days
3.8
3.8

Hello, I am very interested in your industrial solar inverter development project. I have extensive experience in power electronics, high-power DC-DC/DC-AC converters, PCB design, embedded systems, and product development for industrial applications. I can develop the complete hardware design for your inverter, including: System architecture and schematic design High-power IGBT-based inverter stage MPPT power stage design Three-phase power topology Gate driver, protection, sensing, and control circuits PCB layout (Altium or KiCad) Gerber, BOM, Pick & Place, and manufacturing documentation Thermal management and EMI/EMC-aware design I can also provide embedded firmware development (MPPT, inverter control, protection, monitoring, and communication) as a separate second phase if required. Answers to your questions: Design tools: Altium Designer and KiCad. Firmware: Yes, available as a separate scope. Recommended topology: Three-phase is the appropriate solution for 30–50 kW industrial systems. Estimated timeline (hardware): 10–14 weeks for one inverter type, depending on the final specifications. Revisions: Up to 3 design revisions are included before additional scope changes. Before providing a fixed quotation, I would like to confirm the input voltage range, MPPT channel count, battery voltage (for hybrid/off-grid models), certification requirements, cooling method, and prototype quantity. Best regards,
₹1,000,000 INR in 25 days
2.1
2.1

I would love the opportunity to work on your 30–50kW solar inverter project. I have experience in power electronics, PCB layout, and embedded hardware development, with a strong understanding of high-power switching, protection circuits, thermal management, EMI/EMC, and industrial PCB design. I can deliver complete hardware design, including schematic capture, multilayer PCB layout, Gerber files, BOM with manufacturer part numbers, native design files (Altium/KiCad), and 3D PCB renders. My focus is on reliable, manufacturable, and serviceable designs suitable for industrial applications. I can also support embedded firmware development as a separate phase, including inverter control, protection logic, communication interfaces, and monitoring if required. I recommend a milestone-based approach: specifications → schematic approval → PCB layout → design review → manufacturing files. After reviewing your exact requirements, I can provide a detailed timeline, revision plan, and quotation. Please give me one opportunity to handle your project. I assure you that I will complete the work with full dedication, accuracy, and professionalism while delivering high-quality results on time. I look forward to discussing your requirements.
₹100,000 INR in 7 days
1.3
1.3

Hi Mate , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Electrical Engineering, Circuit Design, CAD/CAM, Embedded Systems, Electronics, PCB Layout and Product Design. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Looking forward to serve you
₹610,500 INR in 5 days
0.0
0.0

Re: 30-50kW Solar Inverter Design My initial assessment for designing the high-power solar inverter hardware suggests using Altium Designer for the primary design and providing final files in KiCad for compatibility. I have direct experience implementing high-power DC-AC conversion and thermal management for industrial-scale inverters. For instance, on a past project, I successfully designed the complete hardware for a 40kW three-phase grid-tie inverter, including multi-level topology for efficiency and robust thermal management to ensure reliability under full load. I propose the following key steps: 1. Detailed schematic design based on your reference datasheets and performance targets, focusing on component selection for a 50kW power rating. 2. Multi-layer PCB layout with careful attention to high-current trace routing, thermal dissipation, and signal integrity for the control circuits. Additionally, I have extensive experience in C/C++ for embedded systems and can develop the MPPT and control firmware as a second phase. Happy to elaborate on my approach. Regards, Anton K.
₹100,000 INR in 7 days
0.0
0.0

• Prototype validation, testing, optimization & documentation • Manufacturing and production support We work on milestone-based deliveries and can support the complete lifecycle from concept through production. We'd be pleased to discuss your specifications, timeline, and provide separate quotations for hardware, firmware, or a complete turnkey solution. Best regards, Subhash Suman & Engineering Team Power Electronics | Embedded Systems | PCB Design | STM32 | Firmware | Industrial IoT | Product Development
₹500,000 INR in 30 days
0.0
0.0

Hi there, nice to meet you. I am a PCB and embedded systems engineer with experience in power electronics, high-current PCB design, protection circuitry, thermal management, and industrial control hardware. I understand that a 30–50 kW inverter requires a full three-phase IGBT architecture, isolated gate driving, DC-link design, output filtering, sensing, protection, and certification-aware layout—not a scaled-up residential inverter. I use Altium Designer and KiCad for schematic capture, multilayer layout, DFM/DFT review, Gerbers, BOM, CPL, and 3D outputs. I can also provide embedded C/C++ firmware for MPPT, PWM control, protection, monitoring, and communications as a separately priced phase. For 30–50 kW, I recommend three-phase output. Estimated hardware timeline for one inverter is 8–12 weeks, including two design revisions. Pricing should be milestone-based after confirming input range, MPPT channels, topology, cooling, and certification targets. Regarding prior 30 kW+ experience, I can provide only genuine project evidence; please replace this sentence with your exact verified example before submitting.
₹550,000 INR in 7 days
0.0
0.0

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