提供给vb6.0方便的使用鼠标滑轮。支持微软vb6.0-VB6.0 provided to facilitate the use of the mouse wheel. Support Microsoft VB6.0

提出一种新颖的高效率六开关逆变器(H6)拓扑，解决了无变压器单相光伏并网逆变器漏电流问题。 仿真与实验验证了该拓扑具有低共模电压、高质量的并网波形和高效率特征-This paper proposed a novel, high efficiency, transformerless single phase photovoltaic grid-connected inverter with six active switches tha