公开(公告)号：ITMI20021426D0

公开(公告)日：2002-06-27

申请号：ITMI20021426

申请日：2002-06-27

Applicant: ST MICROELECTRONICS SRL ,  DORA SPA

Inventor： PULVIRENTI FRANCESCO ,  SALA LEONARDO ,  PRIVITERA SALVATORE ,  PAPPALARDO SALVATORE

IPC: G02F1/133 ,  G09G3/20 ,  G09G3/36

Abstract: The present invention describes a system for driving rows of a liquid crystal display including at least one module for driving one single row of the liquid crystal display. The module includes an inverter operating in a supply path between a first and a second supply line of the system, where the first supply line includes a first switch for coupling the inverter to a first or to a second supply voltage and the second supply line includes a second switch for coupling the inverter to a third or to a fourth supply voltage. The inverter is driven by logic circuitry and provides a drive signal for one single row of the liquid crystal display.

公开(公告)号：IT1302208B1

公开(公告)日：2000-09-05

申请号：ITMI982003

申请日：1998-09-14

Applicant: ST MICROELECTRONICS SRL

Inventor： PULVIRENTI FRANCESCO ,  RAVANELLI ENRICO

IPC: H01L27/02 ,  H01L27/092

Abstract: The present invention relates to a circuit device for protection against electrostatic discharge, and being immune to the latch-up phenomenon. The circuit device is of the integrated type in a portion of a semiconductor integrated circuit. The device includes an active limiting element and a resistor connected in series between a terminal of the active element connected to an input/output pin of the integrated circuit, and a terminal of a circuit to be protected. The active element is a bipolar transistor having a base terminal and an emitter-acting collector terminal connected together. The distributed resistor is formed in an emitter-acting collector region of the transistor which is diffused and elongated at the surface inside a base pocket of the transistor.

公开(公告)号：IT201600102282A1

公开(公告)日：2018-04-12

申请号：IT201600102282

申请日：2016-10-12

Applicant: ST MICROELECTRONICS SRL

Inventor： NIZZA ALESSANDRO ,  ALETTI ROBERTO ,  PULVIRENTI FRANCESCO ,  CANTONE GIUSEPPE

IPC: H04B3/04

公开(公告)号：DE69929033T2

公开(公告)日：2006-08-24

申请号：DE69929033

申请日：1999-04-29

Applicant: ST MICROELECTRONICS SRL

Inventor： PAPPALARDO SALVATORE ,  PULVIRENTI FRANCESCO ,  MARINO FILIPPO

IPC: H02M3/156 ,  H02J7/00

Abstract: The DC-DC converter (1') comprises a current error amplifier (32') and a voltage error amplifier (42') connected in parallel to control the charging of the battery (18) and a gradual turning off circuit (44', 60) for turning off gradually the current error amplifier (32') in a battery charging end phase. In this way, the DC-DC converter is able to supply to the battery (18) a battery charging current that remains constant up until the battery full charge voltage is reached.

公开(公告)号：DE60009892T2

公开(公告)日：2005-04-21

申请号：DE60009892

申请日：2000-07-31

Applicant: ST MICROELECTRONICS SRL

Inventor： BONTEMPO GREGORIO ,  ADRAGNA CLAUDIO ,  FAGNANI MAURO ,  PIDUTTI ALBINO ,  PULVIRENTI FRANCESCO ,  QUAGLINO ROBERTO ,  GATTAVARI GIUSEPPE

IPC: H02M1/00 ,  H02M3/28 ,  H02M3/335

公开(公告)号：DE69732699D1

公开(公告)日：2005-04-14

申请号：DE69732699

申请日：1997-08-29

Applicant: ST MICROELECTRONICS SRL

Inventor： CAPICI SALVATORE VINCENZO ,  MILAZZO PATRIZIA ,  PULVIRENTI FRANCESCO

IPC: 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.

公开(公告)号：DE69811674D1

公开(公告)日：2003-04-03

申请号：DE69811674

申请日：1998-11-09

Applicant: ST MICROELECTRONICS SRL

Inventor： PULVIRENTI FRANCESCO ,  BONTEMPO GREGORIO ,  PALUMBO GAETANO

IPC: H04B3/54 ,  H02J13/00

Abstract: A circuit for detecting signals present on a bifilar voltage-supply and signal-transmission line, in which the signals are constituted by positive and negative variations of the supply potential of at least one of the wires of the line (2), comprises: a low-pass filter (20) connected to the two wires of the line in order to supply, at an output terminal of the filter, a constant reference potential (V+) substantially equal to the supply potential of a preselected one of the two wires, a first threshold comparator (21) having a reference input terminal (27) and a threshold input terminal (29) connected, respectively, to the output terminal (18) of the filter (20) and to the preselected wire of the two wires, and a second threshold comparator (22) having a reference input terminal (28) and a threshold input terminal (30) connected, respectively, to the preselected wire of the two wires and to the output terminal (18) of the filter (20). The circuit is relatively simple, does not require synchronization signals, and can be formed as an integrated circuit, taking up a limited area.

公开(公告)号：IT1313833B1

公开(公告)日：2002-09-23

申请号：ITMI992250

申请日：1999-10-28

Applicant: ST MICROELECTRONICS SRL

Inventor： RIBELLINO CALOGERO ,  MILAZZO PATRIZIA ,  PULVIRENTI FRANCESCO

IPC: H02J7/00

Abstract: A control circuit for controlling current of batteries at the end of the charging phase, especially for lithium batteries, including an input/output circuit, placed between a battery charger and a battery, and an output stage, including two transistors, wherein the resistance of one of the two transistors is modulated to increase the value of the total resistance and to cause a lower turning off current of said output stage.

公开(公告)号：ITMI981941A1

公开(公告)日：2000-02-29

申请号：ITMI981941

申请日：1998-08-31

Applicant: ST MICROELECTRONICS SRL

Inventor： PULVIRENTI FRANCESCO ,  BONTEMPO GREGORIO

IPC: G05F3/20

公开(公告)号：ITMI992250D0

公开(公告)日：1999-10-28

申请号：ITMI992250

申请日：1999-10-28

Applicant: ST MICROELECTRONICS SRL

Inventor： RIBELLINO CALOGERO ,  MILAZZO PATRIZIA ,  PULVIRENTI FRANCESCO

IPC: H02J7/00

Abstract: A control circuit for controlling current of batteries at the end of the charging phase, especially for lithium batteries, including an input/output circuit, placed between a battery charger and a battery, and an output stage, including two transistors, wherein the resistance of one of the two transistors is modulated to increase the value of the total resistance and to cause a lower turning off current of said output stage.