Patent ID: 8575875

Claim:
A control device for a voltage converter capable of a voltage conversion between a power storage device and a load device, said voltage converter comprising: a first switching element and a second switching element connected in series between an electric power line for said load device and a ground line; a first rectifying element and a second rectifying element connected in parallel with said first switching element and said second switching element respectively, with a forward direction being defined as a direction from said ground line toward said electric power line; and a reactor provided on a path connecting a connection node of said first switching element and said second switching element, and a positive terminal of said power storage device, and said control device comprising: a current command calculation unit configured to calculate a current command value of a current flowing through said reactor by performing feedback control of a voltage between said electric power line and said ground line; a selection unit configured to select one of said first switching element and said second switching element in accordance with said current command value; and a drive command generation unit configured to generate a drive command for the switching element selected by said selection unit; wherein said selection unit selects said second switching element when said current command value represents a direction from said power storage device toward said load device, and selects said first switching element when said current command value represents a direction from said load device toward said power storage device.