公开(公告)号：DE69302431D1

公开(公告)日：1996-06-05

申请号：DE69302431

申请日：1993-03-18

Applicant: MAGNETI MARELLI SPA

Inventor： DE FILIPPIS PIETRO ,  SALERNO FRANCO ,  MASTELLA PAOLO

IPC: H02P6/08 ,  H02P6/18 ,  H02P6/00

Abstract: The interface circuit (IC) has a single input terminal (i) for to receiving an analogue or digital (PWM) control signal (Vin) indicative of the required speed of rotation of the motor (M). The type of input signal (Vin) is recognised by means of comparator circuits (C1, C2). The input signal (Vin) is processed differently according to its nature in order, in any case, to output an analogue signal (Vo) acceptable by the regulation and control circuit (Z) which pilots the motor (M).

公开(公告)号：ITTO920267A1

公开(公告)日：1993-09-27

申请号：ITTO920267

申请日：1992-03-26

Applicant: MAGNETI MARELLI SPA

Inventor： DE FILIPPIS PIETRO ,  MASTELLA PAOLO ,  SALERNO FRANCO

IPC: G05F20060101 ,  H02P6/08 ,  H02P6/18

公开(公告)号：DE69611826T2

公开(公告)日：2001-06-07

申请号：DE69611826

申请日：1996-09-17

Applicant: ST MICROELECTRONICS SRL ,  MAGNETI MARELLI SPA

Inventor： CRESPI ANGELO ,  CHICCA STEFANIA ,  MASTELLA PAOLO ,  POLETTO VANNI

IPC: G01R15/14 ,  G01R19/00 ,  G01R19/165 ,  G01R31/00 ,  G01R31/02 ,  G01R31/28

Abstract: A circuit for diagnosing the state of a load (LD) comprises a DMOS transistor (DMOS1) interposed between a terminal (OUT) of the load (LD) and voltage comparator circuits (CDT) in order to limit the maximum voltage input to the comparators (CDT) to reduce the circuit area occupied by the comparators (CDT) and consequently the cost of the diagnosis circuit.

公开(公告)号：DE69611826D1

公开(公告)日：2001-03-29

申请号：DE69611826

申请日：1996-09-17

Applicant: ST MICROELECTRONICS SRL ,  MAGNETI MARELLI SPA

Inventor： CRESPI ANGELO ,  CHICCA STEFANIA ,  MASTELLA PAOLO ,  POLETTO VANNI

IPC: G01R15/14 ,  G01R19/00 ,  G01R19/165 ,  G01R31/00 ,  G01R31/02 ,  G01R31/28

Abstract: A circuit for diagnosing the state of a load (LD) comprises a DMOS transistor (DMOS1) interposed between a terminal (OUT) of the load (LD) and voltage comparator circuits (CDT) in order to limit the maximum voltage input to the comparators (CDT) to reduce the circuit area occupied by the comparators (CDT) and consequently the cost of the diagnosis circuit.

公开(公告)号：ITTO960378A1

公开(公告)日：1997-11-08

申请号：ITTO960378

申请日：1996-05-08

Applicant: MAGNETI MARELLI SPA ,  SGS THOMSON MICROELECTRONICS

Inventor： GIORGETTA VALERIO ,  MASTELLA PAOLO ,  MAGGIONI GIAMPIERO ,  CONTUCCI MIRCO

IPC: F02D41/14

Abstract: The circuit comprises a measurement resistor (Rs) in series with the heater (16, 28), a detector circuit (20) for providing a signal (VOP) indicative of the current flowing in the resistor (Rs), switching devices (PW1, PW2; PW3, PW4) for controlling the connection of the heater (16, 28) to a direct-current voltage source (Vbat) and the connection of the measurement resistor (Rs) in the supply circuit comprising the source (Vbat) and the heater (16, 28), and a control unit (18, 32) arranged to drive the switching devices (PW1, PW2; PW3, PW4) in a manner such that, each time the heater (16, 28) is activated, the measurement resistor (Rs) is kept disconnected from the supply circuit of the heater (16, 28) for a predetermined period of time and the measurement resistor (Rs) is then connected in the supply circuit of the heater (16, 28).

公开(公告)号：DE69308338T2

公开(公告)日：1997-07-24

申请号：DE69308338

申请日：1993-03-18

Applicant: MAGNETI MARELLI SPA

Inventor： SALERNO FRANCO ,  MASTELLA PAOLO

IPC: H02P6/00 ,  H02P6/08

公开(公告)号：DE69308338D1

公开(公告)日：1997-04-10

申请号：DE69308338

申请日：1993-03-18

Applicant: MAGNETI MARELLI SPA

Inventor： SALERNO FRANCO ,  MASTELLA PAOLO

IPC: H02P6/00 ,  H02P6/08

公开(公告)号：ITTO920267D0

公开(公告)日：1992-03-26

申请号：ITTO920267

申请日：1992-03-26

Applicant: MAGNETI MARELLI SPA

Inventor： DE FILIPPIS PIETRO ,  SALERNO FRANCO ,  MASTELLA PAOLO

IPC: H02P6/08 ,  H02P6/18

Abstract: The interface circuit (IC) has a single input terminal (i) for to receiving an analogue or digital (PWM) control signal (Vin) indicative of the required speed of rotation of the motor (M). The type of input signal (Vin) is recognised by means of comparator circuits (C1, C2). The input signal (Vin) is processed differently according to its nature in order, in any case, to output an analogue signal (Vo) acceptable by the regulation and control circuit (Z) which pilots the motor (M).