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Advanced PCB Manufacturing
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DIY inverter

2.0 555 timer inverter

A better circuit is using a 555 timer. One configuration of this timer creates a perfect square wave. The good thing is that this chip could work directly with 12V so no driver for the MOSFET is needed. This is the schematic below for the 555 timer that creates one square wave output.

555 inverter DIY

I mount it on a breadboard and adjust the potentiometer till I get a signal of 60 hertz which is the value I want. But this timer only creates one signal. But we need two, one inverted to the other. For that I should invert this square wave that I already have as you can see below.

555 inverter DIY

I’ll do that using the simplest inverter ever. Another BJT transistor with a pullup to 12V. When the timer signal is high the transistor is activated so the output is low. That easy we have inverted the signal and now we have our inverted signals as you can see here.

555 inverter DIY

2.1 Final schematic

Connect each one to the gate of the MOSFETs as in this final schematic and let’s test the circuit once again. There you go. This circuit works as well in this case, we don’t need the Arduino or to regulate voltage for it. In this way it should be much more efficient. We directly apply 12V to the input and obtain the AC at the output as the inverter that I’ve talk about before.

555 schematic inverter circuit

I getter all the components that I need, get a piece of profboard, and make all the connections. Here I have the main 12V dc input and the AC output. So, there you go guys, there you have it. This is a very basic circuit. Using a full bridge inverter and other fine adjustments for the signals you could get better and better and even achieve a perfect sine wave output. Also try using better transformers that I’ve used.

inverter tutorial AC DC

If you would like to help my projects like this one, I have a Patreon campaign. I would really appreciate that guys. I hope that you’ve enjoyed this tutorial. If so don’t forget to check my YouTube channel and click the like button like crazy and share the video with your friends. If you have any question about this tutorial or any other, just leave it in the Q&A page. Also, don’t forget to subscribe and watch all of my other great tutorials. Remember, if you consider helping my projects check my Patreon page as well.

Thanks again and see you later guys.