| 摘要 |
The present invention relates to a battery charging device for an electric vehicle. The battery charging device for an electric vehicle includes: a serial resonance unit receiving a rectified voltage and including a transformer, a resonant inductor, and a resonant capacitor; a rectifying unit of which a first input stage is connected to one end of the secondary windings of the transformer, a second input stage is connected to the other end of the secondary windings of the transformer, and an output stage is connected to the battery of an electric vehicle; and a switch of which one end is connected to the end of the secondary windings of the transformer to which the first input stage of the rectifying unit is connected, the other end is connected to the end of the secondary windings of the transformer to which the second input stage of the transformer is connected, and which is turned on/off to control the current flowing from the secondary windings of the transformer to the rectifying unit. |
