公开(公告)号：EP1087507B1

公开(公告)日：2004-10-13

申请号：EP99204573.2

申请日：1999-12-28

Applicant: STMicroelectronics S.r.l.

Inventor： Zafarana, Alessandro ,  Bassani, Simone Christian

IPC: H02M3/157

CPC classification number: H02M3/157

公开(公告)号：EP1087507A1

公开(公告)日：2001-03-28

申请号：EP99204573.2

申请日：1999-12-28

Applicant: STMicroelectronics S.r.l.

Inventor： Zafarana, Alexxandro ,  Bassani, Simone Christian

IPC: H02M3/157

CPC classification number: H02M3/157

Abstract: A method of controlling a DC-DC converter having means for comparing the output voltage with a low threshold and a high threshold, means injecting a certain minimum electric charge into an inductor of the converter during a charge period of at least a power switch, comprises commanding the beginning of a charge period each time the output voltage drops below the low threshold, progressively increasing the electric charge transferred during a charge period until the output voltage rises to said high threshold, starting from said low threshold upon executing a charge period, measuring and storing the duration of the time interval between two consecutive charge periods, comparing the current time interval with the previously detected and stored time interval, decreasing to said minimum electric charge whenever an increment of the time interval between two consecutive charge periods is detected.
A hardware implementation is also described.

Abstract translation: 一种控制具有用于将输出电压与低阈值和高阈值进行比较的装置的DC-DC转换器的方法，意味着在至少一个功率开关的充电周期期间将特定的最小电荷注入转换器的电感器中包括： 每当输出电压下降到低阈值以下时，命令开始充电时段，在充电时段期间逐渐增加传输的电荷直到输出电压上升到所述高阈值，在执行充电时段时从所述低阈值开始，测量 以及存储两个连续充电时段之间的时间间隔的持续时间，将当前时间间隔与先前检测并存储的时间间隔进行比较，每当检测到两个连续充电时段之间的时间间隔的增量时减小到所述最小电荷。 还描述了硬件实现。