Patent ID: 7940032

Claim:
A power supply having a maximum power point tracking function, the power supply comprising: a converter section switching input power and converting the switched input power into predetermined DC power; and a maximum power point tracking section detecting a power value determined according to a switching operation of the converter section among power values included in a predetermined power-voltage curve, and controlling the switching operation of the converter section so that the detected power value is located within a predetermined reference range having a maximum power value among the power values included in the power-voltage curve, wherein the maximum power point tracking section comprises: a power detector detecting the power value from the input power; a comparator comparing the power value from the power detector and the maximum power value; a switching controller supplying a switching control signal used to control the switching operation of the converter section according to a comparison result of the comparator; and an initializer initializing the maximum power value when the switching control signal from the switching controller is a switching-off signal.