公开(公告)号：ITVA20080044A1

公开(公告)日：2010-01-19

申请号：ITVA20080044

申请日：2008-07-18

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  PULVIRENTI FRANCESCO

公开(公告)号：ITVA20080002A1

公开(公告)日：2009-07-11

申请号：ITVA20080002

申请日：2008-01-10

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  DI FAZIO SALVATORE ,  ILARDO SANTO ,  NIGIDO NICOLA ,  PULVIRENTI FRANCESCO ,  RAGONESE DOMENICO

公开(公告)号：DE69927990D1

公开(公告)日：2005-12-01

申请号：DE69927990

申请日：1999-12-24

Applicant: ST MICROELECTRONICS SRL

Inventor： RANDAZZO VINCENZO ,  AIELLO NATALE ,  LA BARBERA ATANASIO

IPC: H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H05B41/282

公开(公告)号：ITMI991131A1

公开(公告)日：2000-11-21

申请号：ITMI991131

申请日：1999-05-21

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE

IPC: H05B39/04 ,  H05B41/282

公开(公告)号：ITMI20121436A1

公开(公告)日：2014-02-22

申请号：ITMI20121436

申请日：2012-08-21

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  LA ROSA ROBERTO ,  ZOPPI GIULIO

公开(公告)号：ITTO20090214A1

公开(公告)日：2010-09-21

申请号：ITTO20090214

申请日：2009-03-20

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE

公开(公告)号：DE602006013616D1

公开(公告)日：2010-05-27

申请号：DE602006013616

申请日：2006-07-20

Applicant: ST MICROELECTRONICS SRL

Inventor： MESSINA SEBASTIANO ,  AIELLO NATALE ,  MORREALE DANILO ANTONIO CLAUDIO

IPC: H05B41/36

公开(公告)号：DE602004022518D1

公开(公告)日：2009-09-24

申请号：DE602004022518

申请日：2004-06-14

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE

IPC: H05B44/00

Abstract: In a device (1) for driving LEDs (7) with variable light intensity, a supply stage (9) has a first operating mode, in which a controlled supply current (Iout) is generated, and a second operating mode, in which a controlled supply voltage (Vout) is generated. A LED (7) is connected to the supply stage (9), receives the controlled supply current or voltage, and has a turning-on threshold voltage higher than the controlled supply voltage (Vout). A current sensor (11) generates a current-feedback signal (V1fb) that is correlated to the current flowing in the LED (7) and is supplied to the supply stage (9) in the first operating mode. An intensity-control stage (13, 14) generates a mode-control signal (V2fb) that is sent to the supply stage (9) and controls sequential switching between the first and the second operating modes of the supply stage (9).

公开(公告)号：DE69927990T2

公开(公告)日：2006-08-03

申请号：DE69927990

申请日：1999-12-24

Applicant: ST MICROELECTRONICS SRL

Inventor： RANDAZZO VINCENZO ,  AIELLO NATALE ,  LA BARBERA ATANASIO

IPC: H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H05B41/282

公开(公告)号：ITMI20002611A1

公开(公告)日：2002-06-04

申请号：ITMI20002611

申请日：2000-12-04

Applicant: ST MICROELECTRONICS SRL

Inventor： LO PRESTI MATTEO ,  AIELLO NATALE ,  CONSOLI ALFIO ,  GENNARO FRANCESCO ,  TESTA ANTONIO

IPC: H02P25/08

Abstract: A driving circuit for electronically switched motors is provided. The driving circuit includes a supply voltage rectifying stage for providing a rectified supply voltage, first switching means for switching state based on output of a first control block, magnetic means for providing a magnetic flux according to the state of the first switching means, transmission diodes for transmitting an exciting current that flows through the magnetic means, first energy storing means for storing the exciting current, an energy return stage for transferring the energy stored in the first energy storing means to the rectifying stage, and energetic conversion means for receiving the energy stored in the energy storing means through second switching means controlled by a second control block, so as to provide a current as sinusoidal as possible.