公开(公告)号：US20130027008A1

公开(公告)日：2013-01-31

申请号：US13556716

申请日：2012-07-24

Applicant: Ping Lin LIU

Inventor： Ping Lin LIU

IPC: G05F1/46

CPC classification number: G06F1/26 ,  G09G3/3696 ,  G09G2330/021 ,  G09G2330/026 ,  G09G2330/027 ,  Y10S323/901

Abstract: The present relates to a start-up circuit, which is used for starting up a variable power supply circuit, which comprises a detection circuit and a transition circuit. The detection circuit is used for detecting an output voltage of the variable power supply and producing a detection signal. The transition circuit is coupled to the detection circuit. It transits the level of the detection signal and produces a control signal for starting up or cutting off the variable power supply. Thereby, the problem of incapability in transition can be avoided as well as achieving the purpose of low power consumption.

Abstract translation: 本发明涉及一种启动电路，其用于启动包括检测电路和转换电路的可变电源电路。 检测电路用于检测可变电源的输出电压并产生检测信号。 转换电路耦合到检测电路。 它转换检测信号的电平并产生用于启动或切断可变电源的控制信号。 因此，能够避免转移不能力的问题，而且能够实现低功耗的目的。