This is a DIY 3 phase inverter without using any microcontroller.
It convert 12V DC into 220V/380V AC.
Efficiency was almost 69%
Output waveform is Square wave.
Parts list:
IC 4017
IC 555
IC 4049
IC 7809
MOSFET IRFZ44N (6pcs)
Diode 1N4148 (9pcs)
Capacitor 680uF 16V or 35V (2pcs)
Capacitor 100nF (4pcs)
Resistor 30K for 50Hz or 24K for 60Hz
Resistor 10K (7pcs)
Resistor 100 ohm (6pcs)
Resistor 1K (3pcs)
Toggle switch 6pin ON-ON
Car fuse 50A (depends on the max. load)
Transformer center tap 9-0-9 to 220 (3pcs)
IC socket 8 DIP
IC socket 16 DIP (2pcs)
Heatsink for Mosfet (6pcs)
12V Battery cable/connector
Circuit:
For 24V battery, the capacitors must be 35V instead of 16V and the transformers must be 18V instead of 9V.
You can order the PCB from PCBWay
Video:
