Based on the industry demand of small power, small size and easy speed regulation, the mini inverter is targeted. As a compact inverter with small size and large capacity, PV200 has significant advantages such as high power density, high EMC specification design and high reliability. As a book type narrow body inverter,PV200 pays attention to hardware,software,structure and test in every detail in the whole process of development,so as to ensure the Scientificity,preciseness and practicability of the product.