The utility model provides an inverter, basic inverter unit including current inverter still includes the access unit more than 2, it includes 2 basic modules to insert the unit, every basic module is constituteed by inductance L, electric capacity C and switch tube S are parallelly connected, and every basic module constitutes a two -way half -bridge transverter, it is parallelly connected with basic inverter unit's direct current side again after by its 2 basic serial module that every inserts unit, during the use, can concatenate 1 on every inductance L who inserts every basic module of unit and export to the generation of electricity by new energy power of direct current. The utility model discloses can effectively be applicable to a plurality of generations of electricity by new energy in same position and be incorporated into the power networks, than in the common inverter of prior art, can improve the inverter utilization efficiency by a wide margin, reduce inverter's configuration quantity, practice thrift the equipment configuration cost, and its can be conveniently on present inverter's basis the transformation can realize that the cost is lower, the sexual valence relative altitude.