300 W Pure-Sine Inverter Design 512 bit
Budget: ₹12,500 – ₹37,500 INR
I’m putting together a microcontroller-based inverter for industrial equipment and need an engineer to translate my specs into a production-ready design. The goal is a rock-solid 300 W pure sine wave output, stepping from a nominal 350 V DC input down to 200 V AC. Low total harmonic distortion is essential because the unit will drive sensitive industrial controls.
You are free to choose the MCU family you’re most comfortable with (STM32, PIC, MSP430, or similar) as long as the firmware is well-documented and the control algorithm delivers a clean sinusoid under varying loads. Efficiency, thermal performance and fault handling must be considered throughout the design.
Deliverables
• Complete schematic in Altium, KiCad or Eagle
• PCB layout files ready for fabrication
• MCU firmware source code with build instructions
• Bill of materials with manufacturer part numbers and projected lead times
• Test report (scope captures, efficiency curve, THD measurements) proving 300 W continuous output at 200 V AC
Acceptance criteria: waveform THD < 3 %, efficiency ≥ 90 % at 50 % load, safe shutdown on over-temperature or over-current. If this sounds like your wheelhouse, let’s move forward—happy to clarify anything you need before we start.
You are free to choose the MCU family you’re most comfortable with (STM32, PIC, MSP430, or similar) as long as the firmware is well-documented and the control algorithm delivers a clean sinusoid under varying loads. Efficiency, thermal performance and fault handling must be considered throughout the design.
Deliverables
• Complete schematic in Altium, KiCad or Eagle
• PCB layout files ready for fabrication
• MCU firmware source code with build instructions
• Bill of materials with manufacturer part numbers and projected lead times
• Test report (scope captures, efficiency curve, THD measurements) proving 300 W continuous output at 200 V AC
Acceptance criteria: waveform THD < 3 %, efficiency ≥ 90 % at 50 % load, safe shutdown on over-temperature or over-current. If this sounds like your wheelhouse, let’s move forward—happy to clarify anything you need before we start.