| 摘要 |
Disclosed is a bi-directional battery power inverter ( 1 ) comprising a DC-DC converter circuit element ( 3 ) to which the battery ( 2 ) can be connected in order to generate an AC output voltage from a battery ( 2 ) voltage in a discharging mode while charging the battery ( 2 ) in a charging mode. The inverter ( 1 ) further comprises an HF transformer which forms a resonant circuit along with a resonant capacitor ( 6 ). In order to increase the efficiency of said battery power inverter, the transformer is provided with two windings ( 11,12 ) with a center tap ( 20 ) on the primary side, said center tap ( 20 ) being connected to a power electronic center-tap connection with semiconductor switches ( 21,31 ) while a winding ( 13 ) to which the resonant capacitor ( 6 ) is serially connected provided on the secondary side. |
