Compact 300W LiFePO4 Solar Inverter

@macroenergy

As an electrical engineer with over [insert number] years of experience, I have honed my skills in many areas that would make me a perfect fit for your project. My extensive understanding of Digital Motor Control, Analog Design, Electronic Design, Power Electronics, and renewable energy has given me a solid foundation and relevant experience when it comes to designing and implementing compact inverters such as the one you require. Additionally, my proficiency in MATLAB and as an embedded systems specialist further amplifies my capabilities for the job at hand. I have successfully designed diverse power electronics solutions including AC/DC converters, DC-DC converters, battery chargers, solar inverters, and uninterruptible power supplies (UPC). These experiences not only equip me with comprehensive knowledge but also enhance my skill in optimizing PCB layouts -- a key consideration of this project. Moreover, I am adept at preparing quality test plans to ensure reliability and adhering to all necessary safety regulations. My approach will align perfectly with your desire for no hotspots exceeding 90 °C at a 40 °C ambient temperature during operational runs -- an aspect of the project that prominently indicates durability and reliability. In summary, I believe my skill-set coupled with my commitment to delivering top-notch results makes me the ideal candidate for this endeavour.

@tshibsamuel477

Hi there, I carefully reviewed your requirements and can take the 12.8 V LiFePO4 to 220 VAC inverter through the complete electrical design, PCB layout, protection design, firmware, and validation stages. I have experience with power electronics, MOSFET switching stages, PWM control, DC-DC conversion, battery systems, current sensing, thermal design, protection circuits, magnetics, and multilayer PCB design using Altium Designer and KiCad. I am also familiar with the component types and subsystems involved here, including LiFePO4 charging, high-frequency PWM stages, gate drivers, shunt sensing, NTC-based thermal monitoring, and embedded display/control. I can design around your 150–300 W target while paying close attention to efficiency, sine-wave quality, MOSFET SOA, transformer/inductor sizing, thermal limits, short-circuit response, overload protection, and the 10 × 20 cm mechanical envelope. You will receive the complete schematic, production-ready PCB files, BOM with MPNs and critical-part justification, firmware where required, and a structured test plan covering efficiency, regulation, protection, and thermal performance. Just send me a message with your preferred inverter topology and charging requirements, and I can get started quickly. Best regards, Samuel tshibangu

@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!

@alluankit01

Hi, I can support the compact 150–300W LiFePO4 solar inverter design with schematic, PCB layout, BOM, firmware/control logic and test-plan documentation. For this budget, I recommend starting with the initial design package: topology selection, power-stage design, protection circuits, PCB layout direction, BOM and simulation/test plan. Prototype build and live 220VAC load testing should be handled as a separate milestone. I can help with: * Pure sine-wave inverter architecture * 12.8V LiFePO4 input design * 220VAC output power-stage planning * MOSFET/gate-driver selection * Transformer/magnetics review * PWM control approach * Battery SoC LED/display logic * Overload, short-circuit and thermal protection * Thermal-aware PCB layout * BOM with MPNs * Firmware structure if MCU is used * Efficiency and protection test plan Deliverables: * Schematic design notes * PCB layout files * Gerbers/ODB++ ready outputs * BOM with critical-part justification * Firmware/control code where required * Protection and thermal design notes * Simulation/design-check summary * Prototype validation checklist I’ll focus on a practical, manufacturable and safety-aware inverter design within the 10 × 20 cm constraint, with final high-voltage validation done on real prototype hardware. Best regards Ankit

@bojans9

Hi, I can design your compact 150–300 W pure-sine LiFePO4 solar inverter, including schematic, PCB, BOM and embedded firmware. I can handle: * 12.8 V LiFePO4 input and 220 VAC pure-sine output * ≥90% efficiency target and low THD design * MOSFET, current sensing and magnetic component selection * Over-temperature, overload and short-circuit protection * Compact multilayer PCB layout within 10 × 20 cm * Battery SoC/charge-status indication * Complete BOM with MPNs and design notes * Firmware for PWM/control and monitoring where required * Simulation/bench validation and test plan I’ll prioritize thermal management, PCB current paths, component SOA and protection reliability from the beginning. **Budget:** ₹12,500 fixed **Timeline:** 10–14 days I’m ready to review the exact battery/charging requirements and begin the schematic and power-stage architecture.

@germanob

Hello, I’m an Electronics Engineer specializing in power electronics, embedded systems and PCB design, and I’m very interested in developing your 150–300 W pure-sine-wave solar inverter. I understand the main challenge is achieving reliable 220 VAC output from a 12.8 V LiFePO4 battery while maintaining ≥90% efficiency, low THD, thermal stability and robust protection within the 10 × 20 cm footprint. I can handle the complete electronic design, including: • Pure-sine SPWM inverter topology • DC/DC and DC/AC power-stage design • MOSFET selection, gate drivers and SOA considerations • High-frequency LiFePO4 charging/control • Current sensing and overload/short-circuit protection • Over-temperature protection and NTC placement • LC output filter for clean, low-THD sine wave • Battery SoC and charging-status display • Multilayer high-current PCB layout • Thermal management, EMI/EMC-aware layout and grounding • Complete schematic, BOM and component selection notes • KiCad/Altium fabrication-ready PCB • Gerbers, drill files and manufacturing outputs • Firmware for MCU-based control/display, if required • Efficiency, protection and thermal test plan I will carefully consider switching losses, current paths, grounding, MOSFET thermal performance and component placement to support the required ≥90% efficiency and reliable operation up to 300 W. I’m comfortable taking the project from concept through schematic, PCB layout and production-ready documentation.

@antoniod83

Hi, A 12.8 V battery delivering 300 W means the DC side can exceed 25 A continuously, so the efficiency, switching losses, current paths, magnetics, and thermal design will be critical to making this inverter reliable rather than simply functional. I can design this system around those constraints, from the battery input and high-frequency conversion stage through the SPWM 220 VAC output stage and LC filtering. My focus will be on achieving a clean sine wave while maintaining the required efficiency and keeping the complete power system within the 10 × 20 cm mechanical envelope. The design will include properly sized MOSFETs and gate drivers, current sensing, magnetic components, DC-link management, output filtering, LiFePO4 charging/control, and robust protection against short circuit, overload, and over-temperature. I will also account for creepage/clearance, high-current copper routing, heat dissipation, airflow, and conformal-coating requirements. For validation, I will structure the design around your actual acceptance criteria: ≥90% efficiency at 200 W, ≤3% THD at 150 W, reliable 300 W operation, and no component hotspot above 90 °C at 40 °C ambient during the specified thermal test. If you provide the mechanical constraints and any preferred components, I can start developing the architecture immediately. Best regards, António

@poojitham18

Hi i have more than 12 years experienced in circuit design and development in my past i have deosgned lot ofpcb for companies i can design best way under emimec

@VictoriaZ54

Hi, I can help design a compact 150–300 W pure sine wave solar inverter around a 12.8 V LiFePO4 battery system, covering the complete electronics development from topology selection and schematic design through PCB layout, BOM, firmware integration, and validation planning. I’ll focus on high-efficiency power conversion, 220 VAC output quality, thermal management, battery charging control, and robust protection circuits. I’ll prepare production-oriented documentation including Altium/KiCad PCB files, Gerbers, manufacturing BOM with MPNs, design notes, firmware source if required, and a test plan covering efficiency, THD, thermal limits, overload, short-circuit, and temperature protection verification. Question: Do you already have a preferred inverter architecture (such as full-bridge SPWM, push-pull, or high-frequency isolated topology), or should I select the design approach based on efficiency and size targets? Best regards

@paulpham93

I can engineer your 300W pure-sine-wave LiFePO4 solar inverter hardware and firmware. My Upwork profile has earned over $300,000 on Upwork with account Paul.P, covering complex power electronics and PCB layout. I will deliver compact schematics, thermal calculations, and validated prototype Gerber files ready for manufacturing. Best regards, Paul.

@ridwaan6254

The footprint is the hardest line in your brief, not the waveform. A 300 W pure-sine inverter running at 90 percent efficiency dissipates roughly 30 W as heat. Fitting that inside 10 x 20 cm, sealed enough to survive outdoors, is a thermal problem before it is an electronics one — and it drives the transformer choice, the MOSFET package, whether forced air is needed, and ultimately the enclosure itself. Any quote that does not mention heat has not looked at your dimensions. Second, the brief bundles two products. An inverter and a LiFePO4 charger are separate power stages with separate protection, and a LiFePO4 charge profile is a different conversation from 220 VAC output. Worth deciding early: both on one board, or a charger bought in. The power-electronics engineer on my team would deliver topology selection with the efficiency and THD budget shown as calculations rather than claims, full schematic, PCB layout with the thermal work actually done, a BOM with real sourcing, firmware for the state-of-charge display and protection, and a bring-up plan. Now the uncomfortable part. Your range tops out near 12,500 INR. A complete commercial-grade inverter design — schematic, layout, firmware, prototype iterations — is a multi-thousand-dollar engagement anywhere in the world. Nobody delivers it inside that, and a quote that fits your range will stop at the first hard problem. Tell me your real budget and target volume and you will get an honest answer about what fits.

@ostronik

Hi, Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI) and Mobile Application Development, delivering reliable, industrial-grade electronic and software solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development, Hardware Design, Mobile Application(Android & iOS), Prototyping, and Scalable Mass Production, with a strong focus on quality, performance, and cost efficiency. Core Expertise: • Microcontrollers: PIC, STM32, ESP Family, AVR. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer with optimized power design, isolation handling, and EMI/EMC compliance • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485 Mobile Application Capabilities: • Custom Android & iOS mobile applications for device control, monitoring, and data visualization • Real-time dashboards, cloud connectivity, and secure user authentication • Seamless integration between IoT platforms and mobile apps We have successfully transformed multiple concepts into market-ready electronic and mobile-enabled solutions. We would be glad to share a brief reference video. Let’s schedule a meeting to discuss your requirements in detail. Best Regards, Team OSTronik India

@onurk34

I have extensive experience in designing and developing comprehensive solar energy projects, and I can professionally draft any custom layout or system design you need.