公开(公告)号：EP2589113A1

公开(公告)日：2013-05-08

申请号：EP11800137.9

申请日：2011-06-17

Applicant: BYD Company Limited ,  Shenzhen BYD Auto R&D Company Limited

Inventor： SHU, Jian ,  ZHOU, Yong ,  LIU, Jinwen ,  REN, Wenbiao ,  LIU, Xinyang

IPC: H01R4/48 ,  H01L31/048

CPC classification number: H02S40/34

Abstract: A maximum-power-point tracking device is provided for a solar electric-generation system that includes a solar battery and a DC/DC converter connected to the solar battery. The device includes a sampling module configured to detect output current and voltage values of the solar battery. A controlling module is configured to calculate a target current value according to the output current and voltage values and a preset current value, and output a controlling signal for controlling the value of a current according to the output current of the solar battery and the target current value. The device also includes a driving module configured to receive the controlling signal from the controlling module and output a driving signal to adjust a output current value of the DC/DC converter to close to the target current value and adjust an output power of the DC/DC converter.