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：DE60002712D1

公开(公告)日：2003-06-18

申请号：DE60002712

申请日：2000-07-17

Applicant: ST MICROELECTRONICS SRL

Inventor： RANDAZZO VINCENZO

IPC: H02M1/00 ,  H02M7/5383 ,  H05B41/285 ,  H02M7/44

公开(公告)号：IT1318952B1

公开(公告)日：2003-09-19

申请号：ITMI20002125

申请日：2000-10-02

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  LA BARBERA ATANASIO ,  RANDAZZO VINCENZO ,  TORRISI GIOVANNI LUCA

IPC: H05B41/285

Abstract: An electronic thermal protection circuit is for high currents which can occur in the start-up phase in lighting converters. The circuit is associated with a power device having an output terminal connected to an electric load and at least one control terminal receiving a predetermined driving current value by a driving circuit portion. Advantageously, an integrated temperature sensor is provided to detect the temperature of the power device, and an output stage is connected downstream of the sensor to switch off the driving circuit portion when a predetermined operation temperature is exceeded.

公开(公告)号：ITMI20002125D0

公开(公告)日：2000-10-02

申请号：ITMI20002125

申请日：2000-10-02

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  LA BARBERA ATANASIO ,  RANDAZZO VINCENZO ,  TORRISI GIOVANNI LUCA

IPC: H05B41/285

Abstract: An electronic thermal protection circuit is for high currents which can occur in the start-up phase in lighting converters. The circuit is associated with a power device having an output terminal connected to an electric load and at least one control terminal receiving a predetermined driving current value by a driving circuit portion. Advantageously, an integrated temperature sensor is provided to detect the temperature of the power device, and an output stage is connected downstream of the sensor to switch off the driving circuit portion when a predetermined operation temperature is exceeded.

公开(公告)号：ITMI20002125A1

公开(公告)日：2002-04-02

申请号：ITMI20002125

申请日：2000-10-02

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  LA BARBERA ATANASIO ,  RANDAZZO VINCENZO ,  TORRISI GIOVANNI LUCA

IPC: H05B41/285

Abstract: An electronic thermal protection circuit is for high currents which can occur in the start-up phase in lighting converters. The circuit is associated with a power device having an output terminal connected to an electric load and at least one control terminal receiving a predetermined driving current value by a driving circuit portion. Advantageously, an integrated temperature sensor is provided to detect the temperature of the power device, and an output stage is connected downstream of the sensor to switch off the driving circuit portion when a predetermined operation temperature is exceeded.

公开(公告)号：ITMI20121772A1

公开(公告)日：2014-04-20

申请号：ITMI20121772

申请日：2012-10-19

Applicant: ST MICROELECTRONICS SRL

Inventor： LA BARBERA ATANASIO ,  RANDAZZO VINCENZO ,  TORRISI GIOVANNI LUCA

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：ITMI20010261A1

公开(公告)日：2002-08-09

申请号：ITMI20010261

申请日：2001-02-09

Applicant: ST MICROELECTRONICS SRL

Inventor： LA BARBERA ATANASIO ,  RANDAZZO VINCENZO

IPC: H05B41/282 ,  H05B41/295 ,  H05B41/298

Abstract: Herein described is a driver circuit of a fluorescent lamp having a first and a second electrode and igniting when the voltage between the first and second Electrode exceeds a given threshold voltage. The driver circuit comprises an inductance coupled to a supply voltage and to a terminal of the first electrode a first condenser coupled to the other terminal of the first electrode and to a terminal of the second electrode, a control device comprising a first and a second system of switches capable of guaranteeing oscillations of a voltage signal on the inductance and on the first condenser up to the ignition of the lamp. The driver circuit comprises a device associated to the control device and capable of acting on the first system of switches so as to regulate the frequency of the oscillations from a frequency greater than the resonance frequency of the inductance and of the first condenser to the same resonance frequency so as to guarantee a preheating of the first and second electrodes. The device is sensitive to the depletion of gas of the lamp and is capable of sending a turn-off signal to the control device.