-
公开(公告)号：IT1318017B1
公开(公告)日：2003-07-21
申请号：ITMI20001321
申请日：2000-06-13
Applicant: ST MICROELECTRONICS SRL
Inventor： MAGGIONI GIAMPIETRO , GALLINARI MAURIZIO , SERRATONI CLAUDIO , MORELLI MARCO
Abstract: The invention relates to a loop-type voltage regulating device (10), particularly for regulating a voltage of an automotive electric system, being of a type which includes at least one thermal engine (15), a voltage regulator (13) and an alternator (11) operative to deliver a system regulated-voltage signal (A+) to and receive a regulation signal (DF) from the voltage regulator (13). Advantageously, according to the invention, the voltage regulating device further includes a control unit (14) within the regulating loop, which unit is connected between the thermal engine (15) and the voltage regulator (13) and is adapted to supply the latter with a signal related to the engine operation.
-
公开(公告)号：DE69702226D1
公开(公告)日：2000-07-13
申请号：DE69702226
申请日：1997-04-30
Applicant: ST MICROELECTRONICS SRL , MAGNETI MARELLI SPA
Inventor： GIORGETTA VALERIO , MASTELLA PAOLO , MAGGIONI GIAMPIETRO , 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：IT1250830B
公开(公告)日：1995-04-21
申请号：ITTO910609
申请日：1991-07-31
Applicant: ST MICROELECTRONICS SRL
Inventor： BRAMBILLA MASSIMILIANO , MAGGIONI GIAMPIETRO
IPC: G01R31/02 , H03K17/082 , H03K
Abstract: A drive circuit fault detection device comprising an discriminating circuit (10) generating a digital signal, the level of which indicates a fault; and an identifying circuit (12) generating a binary-coded signal (F1, F2) indicating the type of fault, i.e. ground shorting of the drive circuit (1) or an open load (5). The discriminating circuit (10) comprises a resistive network (14) connected to the output (4) of the drive circuit (1), for generating a voltage (V1) indicating correct connection of the load (5) or a fault on the drive circuit (1); and a comparator (15) for comparing the aforementioned voltage with a reference value (VREF) and supplying the digital signal. The identifying circuit (12) comprises a current mirror circuit (28) generating an output voltage (V2) having two different logic levels in the event of short circuiting or an open load (5), the binary-coded output signal (F1, F2) being generated by a combination circuit (34-37).
-
公开(公告)号：DE69525256T2
公开(公告)日：2002-10-17
申请号：DE69525256
申请日：1995-10-09
Applicant: ST MICROELECTRONICS SRL , MAGNETI MARELLI POWERTRAIN SPA
Inventor： MAZZUCCO MICHELANGELO , MAGGIONI GIAMPIETRO
Abstract: A double half-wave rectifier circuit with earth shift using an input differential amplifier (A1) and two current mirrors (CM1, CM2) in cascode configuration in such a way that the input current (I) is transferred to the output via one or the other of the current mirrors (CM1, CM2) depending on whether the input signal voltage (Vin) is greater than or less than an input reference voltage (Vrefin) and therefore the current (I) is positive or negative.
-
公开(公告)号：DE69525533D1
公开(公告)日：2002-03-28
申请号：DE69525533
申请日：1995-11-07
Applicant: ST MICROELECTRONICS SRL , MAGNETI MARELLI POWERTRAIN SPA
Inventor： GALLINARI MAURIZIO , MAGGIONI GIAMPIETRO , MAZZUCCO MICHELANGELO
IPC: F02D41/20 , H01H47/32 , H03K17/695
Abstract: An injector control circuit for a motor vehicle electronic injection system utilising current recirculation to control an injector actuation winding (L), provided with a circuit configuration comprising a constant current generator (IB1) operable to eliminate the problems of instability and sensitivity to supply line (VCC) interruptions to which prior art control circuits are subject.
-
Patent Agency Ranking
公开(公告)号：DE69525256D1
公开(公告)日：2002-03-14
申请号：DE69525256
申请日：1995-10-09
Applicant: ST MICROELECTRONICS SRL , MAGNETI MARELLI POWERTRAIN SPA
Inventor： MAZZUCCO MICHELANGELO , MAGGIONI GIAMPIETRO
Abstract: A double half-wave rectifier circuit with earth shift using an input differential amplifier (A1) and two current mirrors (CM1, CM2) in cascode configuration in such a way that the input current (I) is transferred to the output via one or the other of the current mirrors (CM1, CM2) depending on whether the input signal voltage (Vin) is greater than or less than an input reference voltage (Vrefin) and therefore the current (I) is positive or negative.
-
公开(公告)号：DE69702226T2
公开(公告)日：2000-10-12
申请号：DE69702226
申请日：1997-04-30
Applicant: ST MICROELECTRONICS SRL , MAGNETI MARELLI SPA
Inventor： GIORGETTA VALERIO , MASTELLA PAOLO , MAGGIONI GIAMPIETRO , 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：ES2147413T3
公开(公告)日：2000-09-01
申请号：ES97107132
申请日：1997-04-30
Applicant: ST MICROELECTRONICS SRL , MAGNETI MARELLI SPA
Inventor： GIORGETTA VALERIO , MASTELLA PAOLO , MAGGIONI GIAMPIETRO , 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：DE69222587T2
公开(公告)日：1998-02-19
申请号：DE69222587
申请日：1992-07-15
Applicant: ST MICROELECTRONICS SRL
Inventor： BRAMBILLA MASSIMILIANO , MAGGIONI GIAMPIETRO
IPC: G01R31/02 , H03K17/082 , H03K17/08
Abstract: A drive circuit fault detection device comprising an discriminating circuit (10) generating a digital signal, the level of which indicates a fault; and an identifying circuit (12) generating a binary-coded signal (F1, F2) indicating the type of fault, i.e. ground shorting of the drive circuit (1) or an open load (5). The discriminating circuit (10) comprises a resistive network (14) connected to the output (4) of the drive circuit (1), for generating a voltage (V1) indicating correct connection of the load (5) or a fault on the drive circuit (1); and a comparator (15) for comparing the aforementioned voltage with a reference value (VREF) and supplying the digital signal. The identifying circuit (12) comprises a current mirror circuit (28) generating an output voltage (V2) having two different logic levels in the event of short circuiting or an open load (5), the binary-coded output signal (F1, F2) being generated by a combination circuit (34-37).
-
公开(公告)号：DE69222587D1
公开(公告)日：1997-11-13
申请号：DE69222587
申请日：1992-07-15
Applicant: ST MICROELECTRONICS SRL
Inventor： BRAMBILLA MASSIMILIANO , MAGGIONI GIAMPIETRO
IPC: G01R31/02 , H03K17/082 , H03K17/08
Abstract: A drive circuit fault detection device comprising an discriminating circuit (10) generating a digital signal, the level of which indicates a fault; and an identifying circuit (12) generating a binary-coded signal (F1, F2) indicating the type of fault, i.e. ground shorting of the drive circuit (1) or an open load (5). The discriminating circuit (10) comprises a resistive network (14) connected to the output (4) of the drive circuit (1), for generating a voltage (V1) indicating correct connection of the load (5) or a fault on the drive circuit (1); and a comparator (15) for comparing the aforementioned voltage with a reference value (VREF) and supplying the digital signal. The identifying circuit (12) comprises a current mirror circuit (28) generating an output voltage (V2) having two different logic levels in the event of short circuiting or an open load (5), the binary-coded output signal (F1, F2) being generated by a combination circuit (34-37).
-
-
-
-
-
-
-
-
-
Search Results
21
records
(took 0.061 seconds)
