The DC/AC inversion is a semiconductor component, and also a variable installment, which transfers the DC into AC. The inversion is used to load AC. Therefore, the inversion technology is very important in the area of development and using.
This topic introduces the present situation, development, manufacturing process and application systematically on inversion power resource of vehicle. Making the key control electrical circuit by chipTL494CN, and choose the High-frequency transformation EI33 in the electrical circuit, and it reduces the cost and weight greatly, improves the inversion performance gradually. Through used chip TL494CN to constitute this contra variant power source core control circuit, as well as has selected the EI33 high-frequency transformer in the electric circuit. The electrical circuit will transfer the inputted 12V DC into 220V/50Hz AC by the second frequency conversion and then output it, and the electrical circuit has some functions included outputted over voltage protection, inputted over voltage protection, over heat protection and so on.
