公开(公告)号：ITVA990012A1

公开(公告)日：2000-11-27

申请号：ITVA990012

申请日：1999-05-27

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO

IPC: H02P6/08

Abstract: A method is provided for driving a brushless motor of a type including windings pre-connected in a star or polygon configuration with an integrated driving system designed for independently driving the phase windings. The integrated driving system includes a plurality of output pins corresponding to the output nodes of as many half-bridge stages that are driven in pairs respectively by a direct or inverted driving signal at the same power level without overloading the output metal lines of the integrated device. Each supply terminal of the brushless motor is connected to one of the plurality of output pins of the integrated system relative to a first driving phase signal and to another output pin relative to a different driving phase signal. The drive circuit is internally configured through a plurality of integrated signal path selectors set in one or the other position depending upon the intended use of the integrated device. Further, the paths of the driving phase signals directed toward the inputs of the plurality of half-bridges driven in pairs are coherently crossed to the external connecting scheme of the windings of the motor.

公开(公告)号：ITMI20001950D0

公开(公告)日：2000-09-05

申请号：ITMI20001950

申请日：2000-09-05

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO

IPC: H03K17/06 ,  H03K17/687

Abstract: A drive circuit for controlled edge power elements is described. In one embodiment the drive circuit for controlled edge power elements comprises: a first integrating circuit having a first input suitable for receiving in input a first drive signal; an integrating capacitor coupled to said integrating circuit; a first power element driven by said first integrating circuit and suitable for driving a load, said load having a first terminal. The said first integrating circuit includes a first current amplifier and said integrating capacitor is coupled between said first input and a predetermined reference voltage.

公开(公告)号：ITMI20001999A1

公开(公告)日：2002-03-14

申请号：ITMI20001999

申请日：2000-09-14

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO ,  FONTANELLA LUCA

IPC: H02M1/08 ,  H02M3/158 ,  H02P6/18 ,  H03K5/1536

Abstract: The present invention relates a current zero crossing detecting circuit including a PWM driving half bridge circuit, which generates an output signal (OUT) and a signal synchronous with the high impedance condition of said PWM driving half bridge circuit. Said inventive circuit has the characteristic of comprising detecting means (DFLIP, COMP) synchronous with said signal synchronous with the high impedance condition of said PWM driving half bridge circuit and said output signal (OUT), and said detecting means generating a direction signal (DIR_COR) showing the current direction flowing in said pulse width modulation circuit.

公开(公告)号：ITMI20001951A1

公开(公告)日：2002-03-05

申请号：ITMI20001951

申请日：2000-09-05

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO

IPC: H03F3/345 ,  H03F3/45

Abstract: A current amplifier includes an input branch having a first input; an output branch coupled to said input branch; a bias branch suitable for biasing said input branch. The input branch comprises at least one switch commanded by a first bias voltage supplied by said bias branch so as to substantially block the current flowing in said input branch and consequently substantially block the current flowing in said output branch when the current applied to said first input is null.

公开(公告)号：ITVA990012D0

公开(公告)日：1999-05-27

申请号：ITVA990012

申请日：1999-05-27

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO

IPC: H02P6/08

Abstract: A method is provided for driving a brushless motor of a type including windings pre-connected in a star or polygon configuration with an integrated driving system designed for independently driving the phase windings. The integrated driving system includes a plurality of output pins corresponding to the output nodes of as many half-bridge stages that are driven in pairs respectively by a direct or inverted driving signal at the same power level without overloading the output metal lines of the integrated device. Each supply terminal of the brushless motor is connected to one of the plurality of output pins of the integrated system relative to a first driving phase signal and to another output pin relative to a different driving phase signal. The drive circuit is internally configured through a plurality of integrated signal path selectors set in one or the other position depending upon the intended use of the integrated device. Further, the paths of the driving phase signals directed toward the inputs of the plurality of half-bridges driven in pairs are coherently crossed to the external connecting scheme of the windings of the motor.

公开(公告)号：DE60130884D1

公开(公告)日：2007-11-22

申请号：DE60130884

申请日：2001-08-10

Applicant: IBM ,  ST MICROELECTRONICS SRL

Inventor： ZUFFADA MAURIZIO ,  BETTI GIORGIO ,  CHRAPPAN SOLDAVINI FRANCESCO ,  HASSNER MARTIN AURELIANO

IPC: H03F1/34 ,  H03H11/48

Abstract: The invention relates to a non-linear electronic device and, more particularly, to a non-linear capacitor. More specifically, but not exclusively, the invention relates to an electronic circuit device that may be integrated on a semiconductor substrate. Advantageously, the non-linear device is a capacitor formed by a feedback loop of cascade connected active blocks (2, 5, 6). Moreover, the invention may be integrated or used in association with a circuit network including other non-linear devices.

公开(公告)号：IT1318819B1

公开(公告)日：2003-09-10

申请号：ITMI20001951

申请日：2000-09-05

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO

IPC: H03F3/345 ,  H03F3/45

Abstract: A current amplifier includes an input branch having a first input; an output branch coupled to said input branch; a bias branch suitable for biasing said input branch. The input branch comprises at least one switch commanded by a first bias voltage supplied by said bias branch so as to substantially block the current flowing in said input branch and consequently substantially block the current flowing in said output branch when the current applied to said first input is null.

公开(公告)号：ITMI20001999D0

公开(公告)日：2000-09-14

申请号：ITMI20001999

申请日：2000-09-14

Applicant: ST MICROELECTRONICS SRL

Inventor： CHRAPPAN SOLDAVINI FRANCESCO ,  FONTANELLA LUCA

IPC: H02M1/08 ,  H02M3/158 ,  H02P6/18 ,  H03K5/1536

Abstract: The present invention relates a current zero crossing detecting circuit including a PWM driving half bridge circuit, which generates an output signal (OUT) and a signal synchronous with the high impedance condition of said PWM driving half bridge circuit. Said inventive circuit has the characteristic of comprising detecting means (DFLIP, COMP) synchronous with said signal synchronous with the high impedance condition of said PWM driving half bridge circuit and said output signal (OUT), and said detecting means generating a direction signal (DIR_COR) showing the current direction flowing in said pulse width modulation circuit.