公开(公告)号：US09585204B2

公开(公告)日：2017-02-28

申请号：US14580545

申请日：2014-12-23

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： Chen-Wei Wu ,  Feng-Hsu Lin ,  Yuan-Lun Chang

IPC: H05B37/02 ,  H05B33/08 ,  H02M3/156

CPC classification number: H05B33/08 ,  H02M3/156 ,  H05B33/0815

Abstract: A driving circuit includes: a switching element having a first terminal to receive an input voltage, and a second terminal; an inductor coupled to the second terminal of the switching element; a switch and a current sensing element coupled in series to the second terminal of the switching element; and a control module compensating a voltage sensed by the current sensing element based on at least one of the input voltage and an output voltage across the switching element and the inductor to generate a compensated signal, and switching the switch from an ON state to an OFF state when the compensated signal exceeds a reference threshold for a delay time.

Abstract translation: 驱动电路包括：开关元件，具有用于接收输入电压的第一端子和第二端子; 耦合到所述开关元件的所述第二端子的电感器; 与开关元件的第二端子串联耦合的开关和电流感测元件; 以及控制模块，其基于所述开关元件和所述电感器两端的输入电压和输出电压中的至少一个来补偿由所述电流感测元件感测的电压，以产生补偿信号，并且将所述开关从导通状态切换到OFF 当补偿信号超过延迟时间的参考阈值时状态。