Design of a 2HP Transformerless Pure Sine Wave Inverter (12V DC to 220V AC) with Protections & LCD
Budget: $30 – $250 USD
I need a transformerless pure sine wave inverter with a real power output of 2 HP.
The inverter will be used for powering AC electric gate motors (1 HP and 2 HP).
Specifications:
Input: 12V DC (from sealed lead-acid or car battery)
Output: 220V AC, pure sine wave
Efficiency: Minimum 85%
Frequency: 50Hz (optionally switchable to 60Hz)
Surge Power: Must handle motor startup currents (at least 3–4 kW for a few seconds)
Protections:
Overcurrent protection
Low battery protection
Overtemperature protection with fan control
Short-circuit protection
Display: Small LCD showing battery voltage, charging status, real-time load, and system status
Microcontroller: Arduino Nano (or similar ready-made board) can be used
PCB shape: Not critical (preferably rectangular)
Components: Must use common and widely available parts (no rare components)
Optional: Battery charging circuit integration (like a UPS)
Optional: THD < 3% for high-quality sine wave
Deliverables:
Complete schematic
PCB layout
Gerber files
Bill of Materials (BOM) with part numbers
Source code (if microcontroller is used)
Please send me your final price proposal, estimated delivery time, and if possible, examples of your previous related work.
The inverter will be used for powering AC electric gate motors (1 HP and 2 HP).
Specifications:
Input: 12V DC (from sealed lead-acid or car battery)
Output: 220V AC, pure sine wave
Efficiency: Minimum 85%
Frequency: 50Hz (optionally switchable to 60Hz)
Surge Power: Must handle motor startup currents (at least 3–4 kW for a few seconds)
Protections:
Overcurrent protection
Low battery protection
Overtemperature protection with fan control
Short-circuit protection
Display: Small LCD showing battery voltage, charging status, real-time load, and system status
Microcontroller: Arduino Nano (or similar ready-made board) can be used
PCB shape: Not critical (preferably rectangular)
Components: Must use common and widely available parts (no rare components)
Optional: Battery charging circuit integration (like a UPS)
Optional: THD < 3% for high-quality sine wave
Deliverables:
Complete schematic
PCB layout
Gerber files
Bill of Materials (BOM) with part numbers
Source code (if microcontroller is used)
Please send me your final price proposal, estimated delivery time, and if possible, examples of your previous related work.