公开(公告)号：US20030122531A1

公开(公告)日：2003-07-03

申请号：US10237164

申请日：2002-09-06

Applicant: STMicroelectronics S.A.

Inventor： Jerome Nebon ,  Alexandre Balmefrezol

IPC: G05F001/40

CPC classification number: H02M3/156

Abstract: A switched mode power supply device comprising a power transistor periodically set to conduction and supplying a regulated voltage that comprises a ramp generation circuit controlled by a clock signal and periodically generating a ramp voltage. The device includes an amplifier error circuit between a reference voltage and said regulated output voltage and generates an error signal, and a comparator comparing the ramp voltage with said error voltage and providing an output signal for controlling said power circuit. The circuit is characterized in that it comprises a delay element delaying the setting to conduction of the power transistor so as to desynchronize the starting of the ramp and said setting to conduction.

Abstract translation: 一种开关模式电源装置，包括周期性地设置为导通的功率晶体管并且提供包括由时钟信号控制的斜坡发生电路并周期性地产生斜坡电压的稳压电压。 该装置包括参考电压和所述调节输出电压之间的放大器误差电路，并产生误差信号，以及将斜坡电压与所述误差电压进行比较并提供用于控制所述电源电路的输出信号的比较器。 该电路的特征在于它包括延迟元件延迟功率晶体管导通的设置，以使斜坡的起始和所述设置的导通失速。

公开(公告)号：US20040027098A1

公开(公告)日：2004-02-12

申请号：US10460039

申请日：2003-06-11

Applicant: STMICROELECTRONICS S.A.

Inventor： Jerome Nebon

IPC: G05F001/613

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: A control device is provided for a switching power supply having an output that supplies an output voltage. The switching power supply includes an inductor and two changeover switches for controlling coupling of the inductor. The control device includes a first capacitor for charging with continuous current from a 0 V voltage level, a second capacitor for discharging of the continuous current from a predetermined voltage level that is greater than the voltage level of a DC power supply, and a comparison circuit. The comparison circuit compares the output voltage of the switching power supply with voltage levels of the first and second capacitors and generates control signals for controlling the two changeover switches of the switching power supply. Also provided are switching power supplies having such control devices and a method for controlling a switching power supply.

Abstract translation: 为具有提供输出电压的输出的开关电源提供控制装置。 开关电源包括电感器和用于控制电感器耦合的两个转换开关。 控制装置包括用于从0V电压电平充电的连续电流的第一电容器，用于从大于DC电源的电压电平的预定电压电平放电连续电流的第二电容器，以及比较电路 。 比较电路将开关电源的输出电压与第一和第二电容器的电压电平进行比较，并产生用于控制开关电源的两个转换开关的控制信号。 还提供了具有这种控制装置的开关电源和用于控制开关电源的方法。

公开(公告)号：US20030011372A1

公开(公告)日：2003-01-16

申请号：US10174526

申请日：2002-06-18

Applicant: STMicroelectronics S.A.

Inventor： Jerome Nebon ,  Louis Tallaron

IPC: G01N027/416

CPC classification number: G01R22/00 ,  G01R31/3613 ,  H03F2200/261

Abstract: The amount of charge passing through a measurement resistor connected to a rechargeable battery is measured by integrating in an analog manner an overall current. This overall current is equal to the sum of the resistor current and of a reference current that selectively takes one of two opposite values. The results of the integration are compared with a reference voltage, and one of two opposite values of the reference current is selected depending on each result of the comparison. The number of times where the positive opposite value of the reference current is selected furnishes an indication on the amount of charge during the integration time.

Abstract translation: 通过连接到可再充电电池的测量电阻器的电荷量通过以模拟方式集成整体电流来测量。 该总电流等于电阻器电流和选择性地采用两个相反值之一的参考电流的总和。 将积分的结果与参考电压进行比较，并且根据比较的每个结果来选择参考电流的两个相反值中的一个。 选择参考电流的正相反值的次数提供了在积分时间期间的充电量的指示。