How to build inverters using ferrite core transformers, details assemblies.
Transformers are only tangentially related to inverters. You don't need a transformer to make an inverter. At its most basic level, an inverter is just a couple of switches. This kind of simple inverter will only output a square wave with amplitude equal to the dc voltage input. To get a sine wave, you would filter the output with a capacitor and an inductor, and to change the amplitude of the wave, you would use a transformer (or alternately place a boost/buck converter before the inverter). If you're going to use both an LC filter and a transformer, you can save on parts by using the magnetizing inductance of the transformer as the inductance of the LC. This is all well and good, but it takes a lot of math and analysis to actually size all of the components. If you're really serious about this, you should find a good textbook and read up on everything.
Google joule thief, for some really simple circuits that produce several volts 90k hertz ac for powering one LED from one almost dead cell at less than one volt. Yes, ferrite core, sometimes only one winding, but a second winding can be the output voltage. Possibly the circuits can be scaled up for more power out and a somewhat lower frequency.
