Patent ID: 9325202
Filing Date: 2016-04-26
CPC Classification: H02J,H02M,Y02E

Claim Text:
1. A power control device comprising: a power path switching unit that is able to be connected to a power generating element and switches a power path to a storage element on a load side according to a path switching signal; a voltage conversion unit that converts a voltage level of power generated in the power generating element and supplied through the power path switching unit so as to be able to be supplied to the storage element on the load side; a characteristic measurement circuit that has a function of measuring an open voltage of the power generating element and obtains a maximum power point voltage of the power generating element based on a measured open voltage; and a control unit that outputs, to the power path switching unit, the path switching signal according to a comparison result between the storage element on the load side and a switching threshold value generated according to at least a magnitude relationship between a voltage of the storage element on the load side and a maximum power point voltage out of the open voltage and the maximum power point voltage of the power generating element, wherein the power path switching unit forms a path in which an output of the power generating element is connected to the storage element side by connecting the power generating element to the voltage conversion unit, or a path in which the power generating element is directly connected to the storage element side according to the path switching signal.