DC to AC inverter with improved one cycle control

Switch mode DC to AC inverters using DC-to-DC converter topology has many advantages over the traditional bridge-type inverter. One cycle control is proposed to form a high performance inverter, but high performance ability was need for the magnify integrated chip. In this paper the control circuit error near the zero crossing point was magnified and steady state point of the magnifier was changed from zero to a positive number to minimized the distortion near the zero crossing point. Because one cycle control method was not acute to the load changed, a proportional loop was used and voltage feedback archived from the filter end. And the experimental results are given out.