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Embedded Hardware & Firmware Expert Needed for Industrial 3-Phase Pure Sine Wave Inverter Project Overview: I am seeking an experienced Power Electronics and Embedded Systems Engineer to design the hardware and firmware for an Industrial-Grade 3-Phase Pure Sine Wave Inverter. The project involves designing multiple PCBs (MCU Motherboard, IGBT Driver, Thyristor Driver, and Sensing Interface) and developing robust firmware for system control, monitoring, and HMI integration. 1. Hardware Specifications & PCB Requirements: You will be responsible for designing the following industrial-grade PCBs: • MCU Motherboard: Based on Texas Instruments (TI) or Microchip architecture. Must handle PWM modulation and system logic. • IGBT Driver PCB (3-Phase): Industrial grade, optimized for Infineon or Fuji IGBT modules. • Thyristor Driver PCB (3-Phase): For Static Switch control. • AC/DC Sensing & Interface PCB: • 3-Phase AC Voltage and Current monitoring for the Bypass Input. • 3-Phase AC Voltage and Current monitoring for the Inverter Output. Power Ratings: • DC Input: 110 Vdc to 390 Vdc. • AC Output: 130 Vac to 220 Vac (3-Phase). 2. MCU I/O & Interface Requirements: • Analog/Digital Inputs: • 3-Phase AC Voltage inputs (Bypass & Inverter Output) for grid synchronization. • 6 channels of AC Current input. • DC Voltage input. • Trip Zone digital input. Communication Ports: 2x RS232 and 2x RS485 for serial communication, software monitoring, and data analysis. 3. Firmware & Control Logic: • Inverter Startup Conditions: The MCU must initiate the 3-Phase PWM only when: • The manual "ON" push button is pressed. • DC Input Voltage > 195 Vdc. • Inverter Output Voltage is 230 Vac (±10%). • Inverter Output Frequency is 50 Hz (±5%). • No active alarms from GPIO (Overload, High Temperature, Short Circuit). • No High DC Current detected from the current transducer. Operational Logic: • PWM is manually controlled via On/Off push buttons. • The system must support Inverter Output Voltage adjustment. • The MCU must continuously monitor all statuses and automatically shut down the inverter if any abnormal conditions arise. • Non-Volatile Memory: The MCU must retain programmed firmware after power down and log data for any failure events. 4. Static Switch & Interlock Function: • The Inverter Static Switch should turn ON only after a 10-second continuous "healthy" status check where: • All 3 PWM modulations and waveforms are correct. • Output Voltage is 230 Vac (±10%) and Frequency is 50 Hz (±5%). • No overload alarms are present. Fail-Safe Interlock: If any of the above conditions fail, the Inverter Static Switch must turn OFF immediately, and the Bypass Static Switch must turn ON instantly. These two switches must be electronically interlocked. 5. HMI & Display Integration: • Hardware: 4x20 LCD display communicating via I2C, integrated with a 6-button keypad shield (Up, Down, Enter, On, Off, Mode). • UI Navigation (5 Pages): 1. System Input & Output Data • System DC Status & Temperature • System Function Status • System Alarm Status • System Alarm Logs 6. Final Project Deliverables: Upon completion, the freelancer must provide full ownership and transfer of the following: 1. Hardware Files: Complete Circuit Diagrams/Schematics, Gerber files, and BOMs for all 4 boards (MCU, IGBT Driver, Static Switch Driver, AC & DC Interface). 2. Software Files: Fully commented firmware source code for the MCU. Application Requirements: To be considered for this project, please provide: • A brief cover letter outlining your approach to this project. • Portfolio examples or case studies of past projects specifically related to 3-phase inverters, IGBT/Thyristor drivers, and industrial power electronics.
ID Projek: 40279488
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41 pekerja bebas membida secara purata $1,334 USD untuk pekerjaan ini

Hello, As an Engineer and Developer with Live Experts®, I have a comprehensive understanding of circuit design, electrical engineering, electronics, embedded systems, microcontrollers, and PCB layout. This makes me an ideal fit for your ambitious 3-Phase Pure Sine Wave Inverter project. My experience in industrial-grade power electronics is extensive and I have successfully delivered similar projects in the past. Being well-versed with embedded hardware and firmware development, I will design robust PCBs using TI/Microchip architecture. Besides, my skills in analog/digital inputs (including current and voltage sensing), MCU I/O control, firmware development with robust trip-zone supervision and shutdown protocols are invaluable assets for your project needs. I understand how intricate communication port designs are and assure you efficient integrated designs for your software monitoring and data analysis requirements. Furthermore, building on your specified operational logic, I will programmatically control the 3-Phase PWM only after verifying the specific startup conditions to ensure maximum efficiency and an extended life span for the inverter. As a safety measure, my firmware design philosophy is rooted in continuous monitoring of all aspects; any abnormality will trigger an automatic shutdown to protect against overload or high dc current. With my proficiency in IoT integration techniques using Raspberry Pi as well as PLC prog Thanks!
$1,500 USD dalam 5 hari
8.3
8.3

Drawing on my wealth of experience in circuit design and electrical engineering, I am confident in my ability to undertake your project of designing an industrial-grade 3-Phase Pure Sine Wave Inverter. The design specifications you provided match perfectly with the work I have done, particularly in areas like power supply circuits and multilayer designs for embedded systems - making me a well-rounded fit for your specific needs. My expertise extends beyond just hardware, however, as I exhibit a sound understanding of relevant firmware development. With the aim of ensuring timely, accurate project delivery, I maintain strong and effective communication with my clients throughout the entire process. My rates are always competitive without compromising quality or performance benchmarks that ensure a successful industry-grade 3-Phase Pure Sine Wave Inverter Thank you for considering me for this project. I look forward to further discussing how I can turn your project ideas into realities that transform the landscape of this market segment in line with your inherent partnership requirements. Let's make it happen!
$1,125 USD dalam 7 hari
6.7
6.7

I am an electrical design engineer with strong experience in power electronics, embedded systems, and industrial PCB design. I have worked on MCU-based control systems, high-power drivers, sensing interfaces, and multi-layer PCB designs using Altium and KiCad, making me well suited for this 3-phase inverter project. My approach will include selecting a reliable TI C2000 or Microchip MCU for precise PWM generation, grid synchronization, and protection control. I will design industrial-grade PCBs for the MCU motherboard, IGBT driver, thyristor driver, and AC/DC sensing interface, ensuring proper isolation, noise immunity, and protection for high-power operation. The firmware will implement robust inverter control logic, safety interlocks, monitoring, event logging, and HMI integration via I2C LCD and keypad. All startup conditions, static switch control, and fail-safe protections will be carefully implemented to ensure reliable operation. You will receive complete schematics, Gerber files, BOMs, and fully documented firmware, along with system architecture documentation for future maintenance and scalability. I would be pleased to discuss the inverter topology, protection strategies, and implementation details.
$1,125 USD dalam 7 hari
6.6
6.6

Hi, KINDLY READ MY PROPOSAL I can design the industrial-grade hardware and firmware for your 3-phase pure sine wave inverter, delivering a modular 4-PCB architecture (MCU, IGBT, Thyristor, and Sensing) with robust static-switch interlocks. My APPROACH I will design the 4-PCB system: isolating high-voltage sensing and power driving from the MCU for industrial-grade noise immunity. I will implement the MCU Motherboard (TI C2000/dsPIC) for 3-phase PWM, grid sync, and the startup/shutdown state machine. I will develop the IGBT/Thyristor Drivers with isolated gate drives and hardware-level short-circuit protection. I will design the Sensing PCB for precise 3-phase AC/DC monitoring and fault detection. I will write the control firmware with 10s "healthy" validation, electronic interlocks, and non-volatile logging. I will build the I2C HMI logic for the 4x20 LCD and 6-button keypad navigation. DELIVERABLES Hardware Package: Schematics, Gerbers, and BOMs for all 4 PCBs. Firmware Package: Fully commented source code (Control, PWM, HMI). Documentation: I/O mapping and state machine diagrams. EXPERIENCE I have extensive experience in high-power industrial electronics, specifically designing 3-phase inverters, isolated gate drivers, and grid-sync logic using TI and Microchip DSPs. TO START Preferred MCU family (TI C2000 vs. dsPIC)? Specific IGBT module part numbers? Communication protocol (e.g., Modbus RTU)? I am Ready to begin immediately.
$850 USD dalam 6 hari
6.3
6.3

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: 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.
$1,125 USD dalam 7 hari
6.1
6.1

Hi, I recently worked on an industrial power-control system using a TI C2000 MCU to generate high-resolution PWM for inverter control and manage multiple sensing channels for voltage, current, and protection logic. The main challenge was ensuring stable 3-phase modulation while implementing fast fault detection and safe shutdown conditions. From your description, you need a complete hardware and firmware architecture for an industrial 3-phase pure sine wave inverter, including MCU control, IGBT and thyristor driver boards, sensing interfaces, and system monitoring with HMI. The critical aspects will be reliable PWM generation, accurate voltage/current sensing, fast protection response, and robust communication through RS485 and RS232. My approach would be: 1. Define the control architecture and select a suitable MCU platform 2. Design schematics for MCU, sensing, and driver boards 3. Implement safe PWM control with protection logic and interlocks 4. Develop firmware for monitoring, fault logging, and HMI interface 5. Validate synchronization, protection response, and system stability Quick question: Do you already have preferred IGBT modules and current sensors, or should I recommend suitable industrial components? Best regards Mykola
$3,000 USD dalam 30 hari
5.2
5.2

As an Electrical Engineer with extensive experience in Circuit Design and Electronics, I'm confident that my skills align perfectly with your project's requirements. I have a profound understanding of Power Electronics and profound experience in designing industrial-grade hardware and firmware like the ones you need for your Industrial-Grade 3-Phase Pure Sine Wave Inverter. My experiences range from designing complex PCBs like MCU Motherboards based on Microchip or Texas Instruments architecture, IGBT Driver, Thyristor Driver to Sensing Interface PCBs.
$866 USD dalam 1 hari
5.4
5.4

Hello, I can design the complete hardware PCBs and embedded firmware for the industrial 3-phase pure sine wave inverter, including the MCU motherboard, IGBT driver, thyristor driver, and sensing interface boards. The focus will be on reliable power electronics control, precise PWM generation, and robust protection logic for safe inverter operation. All designs will follow industrial power electronics standards, proper isolation practices, and production-ready PCB DFM guidelines. Following are the deliverables: • Schematic designs and PCB layouts • Gerber and Drill files for manufacturing • Firmware development • Bill of materials I wanted to ask: • Do you have a preferred MCU platform between Texas Instruments C2000 series or Microchip dsPIC for the inverter control? I have 7+ years of experience in projects like: • 3-phase inverter and motor control PCB design with PWM-based control systems • IGBT and MOSFET driver boards for high-power industrial applications My software expertise includes: • Altium designer, KiCad, EAGLE Thank you for considering my proposal. I’m available to clarify and discuss details further through a meeting at your ease. Best Regards, Abubakar
$1,285 USD dalam 7 hari
5.1
5.1

With over a decade of experience as an Electrical Engineer, particularly within industrial automation projects, I am well-equipped to tackle your inverter design project. I have comprehensive abilities in circuit design, embedded systems and PCB layout that align perfectly with your unique software and hardware requirements. Having previously used Texas Instruments (TI) and Microchip architecture, I am confident in my skills to successfully produce a strictly controlled MCU Motherboard for your specific needs. My experiences in controlling each equipment, using IGBT drivers and creating thyristor driver logic make me the perfect candidate to handle these challenges in your project. Moreover, throughout my previous work, I have routinely monitored systems, managed alarms and created fail-safe interlocks – all skills essential within the kind of high-stakes industrial environment you're seeking expertise for. Lastly, my comprehensive understanding and practical application of PWM modulation, system logic and DC voltage/current sensing not only assure the robustness of the resultant firmware but also its usability. You can be confident that by entrusting this project into my hands that you're getting an expert who's dedicated to delivering exceptional quality in line with your requirements.
$1,500 USD dalam 45 hari
5.2
5.2

Best Industrial-Grade 3-Phase Inverter Design Expert ⭐⭐⭐⭐⭐ Hi, Thank you for posting your project, “Industrial-Grade 3-Phase Pure Sine Wave Inverter Design.” I’ve reviewed your requirements and can help ensure your hardware architecture and PCB design are reliable, efficient, and suitable for industrial power electronics applications. I bring 11+ years of experience in power electronics, embedded systems, and industrial PCB design, with hands-on work in IGBT drivers, inverter control systems, sensing interfaces, and MCU-based control hardware used in high-reliability environments. ✅ How I Will Support Your Project 1. Complete Hardware Architecture & PCB Design: I will design all required industrial-grade PCBs with attention to signal integrity, EMI control, and power safety: 2. 3-Phase IGBT Driver Board – Designed for reliable operation with Infineon or Fuji IGBT modules, including proper isolation and protection. 3. 3-Phase Thyristor Driver Board – Stable triggering and protection for the static switch system. 4. AC/DC Sensing & Interface Board—Accurate voltage and current sensing for both bypass input and inverter output monitoring. ✅ Before I start, one quick question: Do you already have a preferred MCU family (TI C2000, Microchip dsPIC, STM32, etc.), or would you like me to recommend the most suitable architecture for this inverter control application? If you share that, feel free to message me, and we can align quickly. Best regards, Prat PCB Must Innovations
$1,000 USD dalam 7 hari
6.4
6.4

Hi, I’m an embedded power electronics engineer with 8+ years of experience developing industrial inverters and motor drives using TI C2000 and Microchip DSC controllers. I have designed 10+ multi-board power systems up to 30 kW, including 3-phase IGBT drivers, isolated sensing circuits, and DSP-based PWM control, achieving <3% THD and fast protection response. Approach: ✅ I will define the inverter control architecture using a TI C2000 or Microchip DSC MCU, mapping PWM modules, ADC channels, and isolated interfaces for accurate 3-phase modulation and protection monitoring. ✅ I will design four industrial PCBs (MCU motherboard, IGBT driver, thyristor/static switch driver, and AC/DC sensing board) with proper isolation, gate protection, and EMI-optimized layout for the 110–390 V DC power stage. ✅ I will implement firmware for SPWM control, grid synchronization, startup logic, fault detection, and interlocked static switch control with event logging in non-volatile memory. Questions: ✅ I would like to confirm the exact IGBT module model (Infineon/Fuji) and required gate voltage levels for the driver design. ✅ Do you prefer SPWM or space-vector PWM for the inverter control to optimize harmonic performance? ✅ Which current and voltage sensing method is planned (Hall sensors, CTs, or isolated amplifiers)? Best, Yaroslav
$1,125 USD dalam 7 hari
4.1
4.1

Hi,Looking for the perfect candidate who can translate ideas to reality? With my expertise in Circuit Design, Electrical Engineering, Electronics and PCB Layout, I am confident I will prove to be an excellent fit for your Industrial-Grade 3-Phase Pure Sine Wave Inverter design. My vast experience of hone working with high-speed and mixed-signal PCB designs complements this project's requirement brilliantly. I have a good grasp of intricate designs and my RF PCB layout skills, like impedance control, grounding, isolation, and EMI reduction, will enable me to ensure that your industrial-grade PCBs are robust, efficient, and perform within required parameters. Having also worked extensively on power supply and filtering design, I believe I have the necessary expertise to handle the huge range of specifications in this project from DC Input Voltage to 3-Phase AC Voltage monitoring. Additionally, my firm grasp on the firmware side is essential for this project due to my background in embedded systems. From designing fail-safe interlock functions to initiating startup conditions and operational logic as per your requirements, I will ensure robust firmware development that caters precisely to your project needs. Best Regard. Leonid Y.
$1,125 USD dalam 7 hari
3.4
3.4

─── ⚡⭐⋆☆⋆⭐⚡ ─── Hi, Client Cover letter: I’ll drive this from power stage assumptions through schematics, layout, and firmware bring up with safety first interlocks and clean test points. Portfolio: I will show my similar project on our chat, Please send me your message. And this is my PCBs design project review. https://www.freelancer.com/projects/embedded-systems/OTA-Dual-Bank-STM-Update/reivew I’m a power electronics plus embedded engineer who ships inverter control stacks using TI C2000 or Microchip dsPIC, isolated gate drive, and low noise sensing. I code firmware in C++ with deterministic state machines, PWM synchronized ADC sampling, watchdogs, and nonvolatile fault logs. Your goal is an industrial three phase pure sine inverter platform with four boards, strict startup gating, instant bypass interlock, and a reliable five page HMI. So, I'll: Define control loops, thresholds, and IO map, then lock the safety state chart and interlock timing. Design and route the four PCBs with isolation, protection, and thermal planning, then deliver firmware, tests, and full manufacturing files. Best, Siva
$1,500 USD dalam 10 hari
3.6
3.6

⭐⭐⭐⭐⭐ This is a serious power-electronics project, not a simple PCB job. You need four coordinated boards plus firmware that handles startup logic, protection, grid/bypass sensing, static-switch interlock, and HMI in a fail-safe way. The critical part will be getting the control architecture, sensing accuracy, isolation, and protection sequencing right before layout starts. My approach would be: System architecture + safety logic Define MCU platform, signal chain, isolation strategy, trip logic, interlocks, logging, and startup/shutdown state machine. Hardware design Design the 4 boards: • MCU motherboard • 3-phase IGBT driver • 3-phase thyristor/static switch driver • AC/DC sensing & interface board Firmware development PWM control, voltage/frequency monitoring, healthy-check timing, fault handling, LCD/keypad UI, serial comms, and alarm log storage. Release package Schematics, Gerbers, BOMs, and fully commented firmware source. I have experience with embedded control, industrial power interfaces, motor/inverter-class PCB design, sensing/protection circuits, and firmware for fault-critical systems. A few key questions: • Target output power (kVA)? • Switching frequency target? • Preferred TI or Microchip family? • Isolation requirement between sensing/control/power stages? If you want, I can help structure this into a practical phased prototype plan before full hardware release.
$1,125 USD dalam 7 hari
3.0
3.0

Greetings Dear Hiring Manager I have read the description of your project and I understand everything. I am an expert in power electronics and industrial embedded systems with extensive experience in designing 3-phase pure sine wave inverters using TI C2000 and Microchip architectures. I specialize in developing high-voltage PCB layouts for IGBT/Thyristor drivers, implementing SVPWM control loops with sub-microsecond fail-safe interlocking, and integrating comprehensive HMI/communication protocols for robust, industrial-grade power conversion. I am waiting on chat to discuss more and I am willing to start it now. Best Regards, Zain Abbas
$999.99 USD dalam 10 hari
3.1
3.1

Hello, This is a well-defined industrial inverter architecture and I’d be glad to support the full hardware and firmware development. My background is in power electronics and embedded control systems, and I have worked on projects involving IGBT driver stages, high-voltage sensing interfaces, STM32/TI MCU control platforms, and industrial communication (RS232/RS485). I am comfortable designing multi-board systems where control logic, gate drivers, sensing circuits, and protection layers must work together reliably. For this system I would structure the design in four clearly separated modules: • MCU control board with deterministic PWM generation and protection handling • Isolated IGBT driver stage optimized for stable switching and noise immunity • Thyristor/static switch driver with proper interlock protection • Precision sensing interface for 3-phase voltage, current, and DC monitoring On the firmware side, I would implement state-based control logic, continuous safety monitoring, startup validation, and event logging to ensure stable inverter operation and fast protection response. I can deliver complete schematics, PCB files, Gerbers, BOMs, and well-structured firmware source code ready for production. If you'd like, I can also propose the recommended MCU platform and gate driver topology for maximum reliability before we start the design. I would be happy to discuss the power stage details and system architecture further. Best regards.
$1,200 USD dalam 20 hari
2.8
2.8

Greetings! I’m a top-rated freelancer with 16+ years of experience and a portfolio of 750+ satisfied clients. I specialize in delivering high-quality, professional industrial-grade 3-phase inverter designing services tailored to your unique needs. Please feel free to message me to discuss your project and review my portfolio. I’d love to help bring your ideas to life! Looking forward to collaborating with you! Best regards, Revival
$750 USD dalam 14 hari
1.5
1.5

✅✅✅ Power Electronics & Embedded Systems Engineer (3-Phase Inverter) ✅✅✅ Hi there, I have strong experience designing industrial power electronics systems including 3-phase inverters, IGBT gate driver boards, sensing interfaces, and MCU-based control platforms. My work includes PWM control, grid synchronization, protection logic, and embedded firmware for high-reliability power systems using TI and Microchip architectures. My approach is to first define the power architecture and protection strategy, then design modular PCBs (MCU control, gate drivers, sensing) with proper isolation, noise immunity, and industrial-grade layout practices. Firmware will implement stable PWM control, interlocks, fault monitoring, event logging, and HMI navigation for safe inverter operation. A few questions: Do you prefer TI C2000 or Microchip dsPIC for PWM control? Will current sensing use Hall sensors or shunt amplifiers? I am ready to start immediately. Best regards
$750 USD dalam 4 hari
2.7
2.7

Hi there, With over 10 years of experience in Electronics and expertise in designing Embedded Systems, I understand the requirements for your Industrial-Grade 3-Phase Pure Sine Wave Inverter project. Having completed over 50 Desktop/Mobile applications and Embedded software projects, I am well-equipped to handle the hardware and firmware design aspects efficiently. I am confident in my ability to deliver a robust solution that meets your specifications, including designing multiple PCBs, developing firmware for system control, monitoring, and integrating HMI. I would love to discuss your project further and explore how I can contribute to its success. Let's connect in chat to delve deeper into the details. Thanks.
$1,200 USD dalam 7 hari
0.0
0.0

Hello, As an immensely experienced and multidisciplinary engineer in electrical and electronics fields, I'm no stranger to designing industrial-grade PCBs as complex as the ones required for your 3-Phase Pure Sine Wave Inverter. My extensive knowledge of power electronics partnered with my proficient circuit design skills will ensure that every aspect of your project is well taken care of, from the MCU Motherboard to the AC/DC Sensing & Interface PCB. But here's where I consider myself exceptional for this job: my deep involvement and understanding of the software side as an Embedded Systems expert. Your project calls for a robust firmware design and control logic implementation; exactly what I've been doing successfully for years. From programming PWM modulations, managing AC voltage and current inputs, to setting up fail-safe interlocks and non-volatile memories; I've got you covered. Moreover, coming through with reliable deliverables is as important to me as it is to you. So besides delivering superior hardware files such as complete circuit designs/schematics, Gerber files, etc., you'll also receive fully commented firmware source code ensuring system log data retention even after power down. This meticulous approach is what sets me apart in any Inverter design projects, especially in handling critical industrial operations like yours. Let's talk further about delivering you results that are not just outstanding but also sustainable and compliant! Thanks!
$750 USD dalam 5 hari
0.0
0.0

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