Patent ID: 8482249
Filing Date: 2013-07-09
Classification: H02J

Abstract:
1. A charging apparatus with alternating current- and direct current-charging functions for a mobile vehicle, the charging apparatus receiving an external DC power source or an external AC power source and converting the received DC power source or the received AC power for providing the required voltage and current to charge a rechargeable battery installed in the charging apparatus; the charging apparatus comprising: a first switch unit having a first common contact, a first contact, and a second contact; a second switch unit having a second common contact, a third contact, and a fourth contact; the third contact of the second switch unit electrically connected to the second contact of the first switch unit; a filtering unit receiving the external DC power source and electrically connected to the first contact of the first switch unit to filter the external DC power source; a filtering and rectifying unit receiving the external AC power source and electrically connected to the filtering unit and the first contact of the first switch unit to filter and rectify the external AC power source; a DC/DC conversion unit electrically connected to the first common contact of the first switch unit, the fourth contact of the second switch unit, and the rechargeable battery; an integrated DC/DC conversion and PFC unit electrically connected to the filtering and rectifying unit and the second common contact of the second switch unit; and a control unit electrically connected to the first switch unit and the second switch unit to control the first switch unit and the second switch unit; the first common contact of the first switch unit electrically connected to the first contact of the first switch unit and the second common contact of the second switch unit electrically connected to the fourth contact of the second switch unit when the charging apparatus receiving the DC power source; the first common contact of the first switch unit electrically connected to the second contact of the first switch unit and the second common contact of the second switch unit electrically connected to the third contact of the second switch unit when the charging apparatus receiving the AC power source; wherein the DC/DC conversion unit is electrically connected in parallel to the integrated DC/DC conversion and PFC unit to receive and convert the DC power source by controlling the first switch unit and the second switch unit, thus providing the required DC voltage level and charging current to the rechargeable battery when the charging apparatus receives the DC power source; the DC/DC conversion unit is electrically connected in series to the integrated DC/DC conversion and PFC unit to receive and convert the AC power source by controlling the first switch unit and the second switch unit, thus providing the required DC voltage level and charging current to the rechargeable battery when the charging apparatus receives the AC power source; whereby the charging apparatus provides adaptive AC- or DC-charging functions for charging the rechargeable battery according to that the received external power source is the DC power source or the AC power source.