US Patent 10965141 Vehicle and vehicle charging apparatus

A vehicle charging apparatus includes: an AC/DC converter configured to variably output a DC link voltage; and a DC/DC converter electrically connected to the AC/DC converter and configured to acquire an output voltage by conversion of the DC link voltage outputted by the AC/DC converter and transmit the acquired output voltage to a battery. The AC/DC converter includes: a first switch element configured to adjust a power factor of the AC/DC converter according to an operation of the first switch element, and a second switch element configured to increase the DC link voltage outputted by the AC/DC converter according to the operation of the first switch element.