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Power Inverter Design

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Enzy

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I was going through google and decided to start doing some inverter designs, a while back I ran a simulation on this circuit which seemed to work fine but what I did here is to add 2 more pairs of FETs I am not sure if I should have added individual gate resistors for each FET or its ok the way I did it.

I want to use this as a starting also I wish to add features to it like protection features ect.

how does it look so far ( I saw this design from a guy named John parfrey) just planning to modify.
 

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The 555 and CD4017 produce a very odd waveform called a "modified sinewave" but it does not resemble a sinewave, it is actually a modified squarewave. It might be good for powering incandescent light bulbs and heaters.
 

Thats what I figured so are you saying I should start from something more modern or should I still use this and try to modify it more, get ac out at 50hz put in some features like low voltage alarm, low volt shut down ect, or should I aim to start with a better design.
 

You won't get it to provide a nice sinewave. The only way you're going to do that is with a Microcontroller providing a PWM sine wave referenced signal. Google sine-triangle modulation to help you get your head round it. Using the circuit you have shown would provide dreadful harmonic contents. Actually there are various useful app note on the Microchip website to help you with this.
 

U know about micro controllers and how they operate, I am not a c programmer but I have worked with the arguing before also I have worked with a pic16f628a chip which I have a pic programmer also because I did an inverter before using a pic.

I still have the specific pic chip and I have arduino boards, which would you recommend
 

Ok if you know your way round PICs then you need to find one with hardware PWM generation as this will take off a lot of overhead rather than trying to produce PWM with bit bashing.
 

I actually dont know my way around it, I have 1 hex file from a circuit I did In the past so I doubt I could work with pics. Thats why I was starting so basic
 

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