The inverter transformer is that electronic transformers, which used in inverter circuits. By using semiconductor-based MOSFETs to swithc the primary voltage, The inverter transformer could conver power from a DC source into AC power. What's more, depens on the turns ratio, the tranforcer can step-up or step-down the voltage from the primary winding to the secondary winding. 
Thanks for its light,versatile and efficient characteristic, inverter transformer popular in inverter welder. The inverter welders can weld various of metails, such as stainles steel, carbon steel, etc.
Guangzhou Amorphous Electronic Co., Ltd focus on high frequency, low core loss nanocryatalline cores of inverter transformers, and can winding tranformers as customized design.