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    POWER-EFFICIENT LED DRIVE CIRCUIT
    1.
    发明公开
    POWER-EFFICIENT LED DRIVE CIRCUIT 有权
    LEISTUNGSEFFIZIENT LEUCHTDIODEN TREIBSCHALTUNG

    公开(公告)号：EP1691581A1

    公开(公告)日：2006-08-16

    申请号：EP05425066.7

    申请日：2005-02-11

    Applicant: STMicroelectronics S.r.l.

    Inventor： Ragonesi, Gianluca ,  Milazzo, Patrizia ,  Musemeci, Salvatore ,  Platania, Giuseppe

    IPC: H05B33/08

    CPC classification number: H05B33/0818 ,  H05B33/0815

    Abstract: Herein described is a circuit apparatus with LED diodes comprising a plurality (2) of circuit branches in which each circuit branch (10, 20; 101-104) comprises at least one LED diode (D1, D20, D21, D10). The apparatus comprises a device (1) for the feeding of said plurality (2) of circuit branches and each circuit branch (10, 20;101-104) is connected singularly to the feeding device (1). The feeding device (1) comprises control means (3) suitable for commanding the feeding of each circuit branch (10, 20;101-104) of the plurality (2) of circuit branches independently from the other circuit branches of the plurality.

    Abstract translation: 这里描述了一种具有LED二极管的电路装置，该LED二极管包括多个（2）个电路分支，其中每个电路分支（10,20; 101-104）包括至少一个LED二极管（D1，D20，D21，D10）。 该装置包括用于馈送所述多个（2）个电路分支的装置（1），并且每个电路支路（10,20; 101-104）被单独地连接到馈送装置（1）。 馈送装置（1）包括适于指示多个（2）个电路分支中的每个电路分支（10,20; 101-104）独立于多个电路分支的馈送的控制装置（3）。

    A battery-charger device with improved stability
    2.
    发明公开
    A battery-charger device with improved stability 有权
    平面设计师

    公开(公告)号：EP1489716A1

    公开(公告)日：2004-12-22

    申请号：EP03291488.9

    申请日：2003-06-18

    Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics S.A. ,  STMicroelectronics GmbH

    Inventor： Chesnau, David ,  Mercandante, Giacomo ,  Milazzo, Patrizia ,  Bernard, Christopher

    IPC: H02J7/00 ,  H02M1/08

    CPC classification number: H02J7/0072 ,  H02M1/08 ,  H02M2001/0009

    Abstract: A circuit (225) for controlling a battery-charger device (200) with a closed-loop architecture is proposed. The circuit includes sensing means (230) for sensing an operative quantity of the device, means (245) for alternately controlling the sensing means to track the operative quantity during a tracking phase and to hold the operative quantity during a holding phase, and driving means (240) for providing a regulation signal, for regulating the operative quantity, according to a comparison between the sensed operative quantity and a reference value; the circuit of the invention further includes means (245;485-490) for causing the driving means to hold the regulation signal during at least part of each holding phase.

    Abstract translation: 提出了一种用于控制具有闭环结构的电池充电器装置（200）的电路（225）。 电路包括用于感测装置的操作量的感测装置（230），用于在跟踪阶段期间交替地控制感测装置跟踪操作量并在保持阶段保持操作量的装置（245），以及驱动装置 （240），用于根据感测到的操作量与参考值之间的比较来提供用于调节操作量的调节信号; 本发明的电路还包括用于在每个保持阶段的至少一部分期间使驱动装置保持调节信号的装置（245; 485-490）。

    Improved voltage regulator with leakage current compensation
    4.
    发明公开
    Improved voltage regulator with leakage current compensation 有权
    Verbesserter Spannungsregler mit Leckstromkompensation

    公开(公告)号：EP1965283A1

    公开(公告)日：2008-09-03

    申请号：EP07103177.7

    申请日：2007-02-27

    Applicant: STMicroelectronics S.r.l.

    Inventor： Lo Iacono, Gioacchino ,  Milazzo, Patrizia ,  Tricomi, Salvatore

    IPC: G05F1/56

    CPC classification number: G05F1/565

    Abstract: A voltage regulator (200) having an input terminal for receiving an input voltage (Vdd) and an output terminal for providing a regulated voltage (Vreg) , the voltage regulator including: a differential amplifier (105) configured for receiving a reference voltage ( Vref ) and a feedback signal ( Vfb ) being a function of the regulated voltage, and for providing a regulation signal (Vgate) according to a comparison between the reference voltage and the feedback signal, a regulation transistor (M0) having a control terminal for receiving the regulation signal (Vgate) , a first terminal for receiving the first voltage and a second terminal coupled with the output terminal of the voltage regulator, wherein a voltage-controlled circuit (205) coupled to the output terminal, responsive to a voltage difference between the first voltage and the regulation voltage and adapted to sink from the output terminal a current depending on said voltage difference between the supply voltage and the regulation voltage, said current being related to a leakage current of the regulation transistor.

    Abstract translation: 一种电压调节器（200），具有用于接收输入电压（Vdd）的输入端子和用于提供调节电压（Vreg）的输出端子，所述电压调节器包括：差分放大器，被配置为接收参考电压 ）和作为调节电压的函数的反馈信号（Vfb），并且根据参考电压和反馈信号之间的比较来提供调节信号（Vgate）;调节晶体管（M0），具有用于接收的控制端子 调节信号（Vgate），用于接收第一电压的第一端子和与电压调节器的输出端子耦合的第二端子，其中耦合到输出端子的电压控制电路（205）响应于电压差 第一电压和调节电压，并且适于从输出端子吸收取决于电源电压和调节器之间的所述电压差的电流 离子电压，所述电流与调节晶体管的漏电流有关。

    Battery charge control circuit
    6.
    发明公开
    Battery charge control circuit 审中-公开
    Batterieladesteuerungsschaltung

    公开(公告)号：EP2031745A1

    公开(公告)日：2009-03-04

    申请号：EP07291047.4

    申请日：2007-08-30

    Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics S.A.

    Inventor： Nebon, Jerome ,  Balmefrezol, Alexandre ,  Platania, Giuseppe ,  Milazzo, Patrizia

    IPC: H02M3/158 ,  H02J7/00

    CPC classification number: H02M3/158

    Abstract: A DC-DC voltage down-converter ( 140 ) for an electronic device ( 105 ) supplied by a battery ( 125 ) and having a bus interface ( 110 ) for the interconnection with another electronic device ( 120 ) capable of supplying electric power is provided. The DC-DC voltage down-converter includes a terminal coupled to a voltage supply line ( VS ) of the bus interface and operable to receive a input current ( Iusb ) from said another electronic device. The DC-DC voltage down-converter further includes an electric energy storage element ( L ) coupled between the battery and said terminal, the electric energy storage element being operable to store/release electric energy and a drive circuit ( 225 ) arranged to control the storage/release of the electric energy storage element, so as to cause an electric power generated by said input current supplied by said another electronic device trough the voltage supply line to re-charge the battery. The DC-DC voltage down-converter still further includes a input current feedback control circuit ( 240, 250 ) coupled to said terminal and arranged to monitor a value of said input current and generate a corresponding input current indication ( UCPWM ); said drive circuit is configured to control the store/release of the electric energy storage element according to said input current indication.

    Abstract translation: 提供一种由电池（125）提供并具有用于与能够供电的另一电子设备（120）的互连的总线接口（110）的用于电子设备（105）的DC-DC电压下变频器（140） 。 DC-DC电压下变频器包括耦合到总线接口的电压供应线（VS）的端子，并可操作以从所述另一电子设备接收输入电流（Iusb）。 DC-DC电压下变频器还包括耦合在电池和所述端子之间的电能存储元件（L），所述电能存储元件可操作以存储/释放电能;以及驱动电路（225），其布置成控制 存储/释放电能存储元件，以便使由所述另一电子设备通过电压供应线供应的所述输入电流产生的电力对电池重新充电。 DC-DC电压下变频器还包括耦合到所述端子并被布置成监视所述输入电流的值并产生相应的输入电流指示（UCPWM）的输入电流反馈控制电路（240,250）。 所述驱动电路被配置为根据所述输入电流指示来控制电能存储元件的存储/释放。

    Low consumption linear voltage regulator with high supply line rejection
    8.
    发明公开
    Low consumption linear voltage regulator with high supply line rejection 失效
    Linears Spannungsregler mit geringem Verbrauch und hoherVersorgungsspannungsunterdrückung

    公开(公告)号：EP0899643A1

    公开(公告)日：1999-03-03

    申请号：EP97830434.3

    申请日：1997-08-29

    Applicant: STMicroelectronics S.r.l.

    Inventor： Capici, Salvatore Vincenzo ,  Milazzo, Patrizia ,  Pulvirenti, Francesco

    IPC: G05F1/565

    CPC classification number: G05F1/565

    Abstract: A linear type of voltage regulator, having an input terminal (VBAT) adapted to receive a supply voltage thereon, and an output terminal (VOUT) adapted to deliver a regulated output voltage, comprises a power transistor (M1) and a driving circuit therefor; the driving circuit basically comprises an operational amplifier (OP) having a differential input stage biased by a bias current (Iop) which varies proportionally with the output current (Iload) of the regulator.

    Abstract translation: 具有适于接收电源电压的输入端子（VBAT）的线性类型的电压调节器和适于传递稳定输出电压的输出端子（VOUT）包括功率晶体管（M1）及其驱动电路; 驱动电路基本上包括具有由偏置电流（Iop）偏置的差分输入级的运算放大器（OP），偏置电流（Iop）与调节器的输出电流（Iload）成比例地变化。

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