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）。

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。

公开(公告)号：EP1691580A1

公开(公告)日：2006-08-16

申请号：EP05425065.9

申请日：2005-02-11

Applicant: STMicroelectronics S.r.l.

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

IPC: H05B33/08

CPC classification number: H05B33/0818 ,  H05B33/0815

Abstract: Herein described is a supply device of at least two circuit branches (10, 20), each of said at least two circuit branches (10, 20) comprising at least one LED diode (30). The device comprises means (1) suitable for imposing the electric supply (Vout) of said at least two circuit branches (10, 20) and said means comprise at least one variable resistance (R2). The device comprises control means (3) coupled to said at least two circuit branches (10, 20) and suitable for varying said resistance (R2) in reply to a variation of the current (110, 120) that flows in one of said at least two circuit branches (10, 20) to vary the electric supply of said at least two circuit branches.

Abstract translation: 这里描述了至少两个电路分支（10,20）的供电装置，所述至少两个电路分支（10,20）中的每一个包括至少一个LED二极管（30）。 该装置包括适于施加所述至少两个电路分支（10,20）的电源（Vout）的装置（1），并且所述装置包括至少一个可变电阻（R2）。 所述装置包括耦合到所述至少两个电路支路（10,20）的控制装置（3），并且适合于响应于在所述至少两个电路支路（10,20）之一中流动的电流（110,120）的变化而改变所述电阻（R2） 至少两个电路分支（10,20），以改变所述至少两个电路分支的电力供应。