公开(公告)号：EP2190109B1

公开(公告)日：2014-09-03

申请号：EP09174016.7

申请日：2009-10-26

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio ,  Ilardo, Santo

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

公开(公告)号：EP2190109A1

公开(公告)日：2010-05-26

申请号：EP09174016.7

申请日：2009-10-26

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio ,  Ilardo, Santo

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

Abstract: Control device for a rectifier of a switching converter; the converter is powered by an input voltage and is suitable for providing an output current (Iout). The rectifier (T1, T2) is suitable for rectifying said output current of the converter and comprises at least one transistor (T1); the control device (100, 200, 300) is suitable for driving said at least one transistor. The control device comprises first means (100) suitable for identifying the start and the end of every converter switching half-cycle and measuring the duration thereof, second means (200) suitable for generating a signal (EN-SR) for turning on said transistor after a given number (n) of measured converter switching half-cycles and when the output current (Iout) of the converter becomes greater than a reference current (Iref). ( Fig. 3 )

Abstract translation: 开关变换器整流器的控制装置; 转换器由输入电压供电，适用于提供输出电流（Iout）。 整流器（T1，T2）适于整流转换器的所述输出电流，并且包括至少一个晶体管（T1）; 控制装置（100,200,300）适于驱动所述至少一个晶体管。 控制装置包括适于识别每个转换器切换半周期的开始和结束并测量其持续时间的第一装置（100），适于产生用于导通所述晶体管的信号（EN-SR）的第二装置（200） 在给定数量（n）个测量的转换器切换半周期之后以及当转换器的输出电流（Iout）变得大于参考电流（Iref）时）。 （图3）