Inverters offtheshelf for feeding into 240VAC

[treez]

Hello,
We've seen plenty of inverter gate driver ic's, but are there any that produce the varying duty cycle drive to produce the sine wave with? -Or do they all need a additional microcontroller to do this?

 

[treez]

Hello,
I have simulated a grid tied inverter by simply having an isolated 400V supply….then having a PWM with a sinusoidally varying duty cycle which switches via a bridge into a Filter to filter out the switching harmonics and leave behind the 50Hz waveform.
Would you say this is a good modus operandi?
Its as in the attached simulation. (LTspice)

 

[FvM]

I don't recognize a grid tied inverter. No synchronization circuit, no current measurement and control, anything distinguishing a GTI from a simple sine inverter.