| 摘要 |
A power supply device of a wireless power transmission device wirelessly transmitting power to a wireless power reception device according to an embodiment of the present invention comprises: a power supply unit which supplies DC power; a DC-DC converter which adjusts the DC power into a predetermined DC power; a conversion unit which converts the adjusted DC power into AC power and transmits the converted AC power to the wireless power transmission device; and a control unit which controls the power supplied to the DC-DC converter according to at least one among a current applied to the DC-DC converter, a current applied to the conversion unit, or a current outputted from the conversion unit. [Reference numerals] (AA,DD) Yes;(BB,CC) No;(S101) Switch short circuiting;(S103) Control voltage applied to a DC to DC converter;(S105) Measure the current applied to a conversion unit;(S107) Is the measured current above critical current?;(S109) Control the voltage applied to the DC to DC converter;(S111) Open a switch;(S113) Two seconds elapse?;(S115) Convert power into AC power;(S117) Deliver the converted AC power to a wireless power transmitting device |
