Abstract:
A filter device comprises: a filter capacitor portion having one set of ends connected to the AC voltage unit, and the other set of ends connected to DC terminals of the semiconductor switching unit via a low impedance element, wherein both set of ends of the filter capacitor portion and the DC terminals of the semiconductor switching unit are static ground terminals of the power converter; a filter inductance portion a first set of connection terminals connected to the AC voltage unit, a second set of connection terminals connected to the AC terminals of the semiconductor switching unit, a third set of connection terminals connected to one of the static ground terminals of the power converter, and a fourth set of connection terminals; and a compensation portion having one end connected to the fourth set of connection terminals and the other end connected to the ground.
Abstract:
The disclosure provides a magnetic core comprising a base, a center column, a first side column and a second side column fixed to the base. The first side column, the second side column and the center column are defined an annular space for accommodating a bobbin and/or a winding. The annular space have a first core opening and a second core opening thereon. A size of the first core opening between the first side column and the second side column is defined as a first core opening width. A size of the second core opening between the first side column and the second side column is defined as a second core opening width. Wherein at least one wire receiving space is provided at the base of the magnetic core, and the wire receiving space is located within the first core opening and/or the second core opening.
Abstract:
A power conversion apparatus is disclosed in the present application. The power conversion apparatus comprises: a power converter comprising an energy-storage magnetic component, and a filter comprising an inductor component and a two-port network connected the energy-storage magnetic component and the inductor component, wherein a series resonance is formed by the two-port network and a mutual inductance which is formed by a coupling between the energy-storage magnetic component and the inductor component.