LTSpice DC - AC Inverter Schematic Help

[NightStar]

Hi, I'm looking to understand a circuit schematic on LTSpice. I'm trying to make my own DC-Ac Inverter circuit and am a bit lost, so am looking through the forums to find inspiration. I found the schematic below from an older forum post and am struggling to comprehend it. In an inverter circuit. I'm looking to make a pure sine wave.

 

[Baluncore]

Welcome to PF.

Everything is digital and switching, so the output will be a square wave, not a sine wave.
You will need a different circuit topology to generate a sine wave.
What exactly do you not understand about the circuit ?

 

[phyzguy]

The main oscillator is an astable multivibrator. Try this link to understand how it works.

 

[berkeman]

I'm trying to make my own DC-Ac Inverter circuit

Is your aim to just understand a circuit and get a good LTSpice simulation running, or do you intend to actually build and test the circuit? If the latter, what experience do you have with AC Mains circuits and the related safety considerations?

 

[NightStar]

Is your aim to just understand a circuit and get a good LTSpice simulation running, or do you intend to actually build and test the circuit? If the latter, what experience do you have with AC Mains circuits and the related safety considerations?

I'm a student working on a research project with an Electrical Engineering professor focused on EV Charging adapters. I'm trying to convert power from an NACS charger to be compatible with a J1772 charging port. I'm trying to simulate an inverter circuit to get a better understandinng of circuits as a whole.