Patent ID: 9236760
Filing Date: 2016-01-12
CPC Classification: B60L,H02J,H02M,Y02T

Claim Text:
1. A charging device for an electromotive vehicle equipped with an electrical storage device, the charging device including: a first electric power converter that converts an alternating-current voltage, supplied from an external power supply, to a direct-current voltage higher than a peak voltage of the alternating-current voltage and outputs the direct-current voltage to a first power supply line; and a second electric power converter that, during external charging for charging the electrical storage device by the external power supply, converts a direct-current electric power between the first power supply line and a second power supply line that is electrically connected to a positive electrode of the electrical storage device, wherein: the second electric power converter includes a first switching element that is electrically connected between a first node and the first power supply line, and a first inductor that is electrically connected between the first node and the second power supply line; the charging device further includes a control device that controls the first and second electric power converters; and during the external charging, the control device selects either a first control mode in which the electrical storage device is charged through on/off control over the first switching element and a second control mode in which the electrical storage device is charged while the first switching element is kept in an on state, on the basis of a state of the external charging, wherein the control device selects the second control mode when a voltage of the electrical storage device is higher than the peak voltage of the alternating-current voltage.