Rectifier and method for controlling the same

摘要

According to one embodiment, a rectifier (110) includes a rectifying device (10), a control element (20) and a controller (30). The control element (20) is serially connected to the rectifying device (10). The control element (20) has a resistance value that changes according to a control signal (CS). The controller (30) generates the control signal (CS) according to a change in a current (i 10 ) flowing in the rectifying device (10).