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公开(公告)号：US10375774B2
公开(公告)日：2019-08-06
申请号：US15216561
申请日：2016-07-21
Inventor： Manuel Gaertner , Sergio Lecce , Giovanni Luca Torrisi
Abstract: An integrated device for driving a lighting load, such as a LED, has a first memory element, configured to store a nominal duty-cycle at a nominal supply voltage. An actual voltage acquisition element is configured to detect an actual supply voltage. A processing unit is coupled to the first memory element and to the actual voltage acquisition element and configured to calculate a voltage compensated duty-cycle. A driver unit is coupled to the processing unit and is configured to be supplied according to the voltage compensated duty-cycle.
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公开(公告)号：US20190162759A1
公开(公告)日：2019-05-30
申请号：US16262521
申请日：2019-01-30
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Vanni Poletto , Riccardo Miglierina , Antonio Davide Leone , Sergio Lecce
IPC: G01R19/165 , G01R31/34 , G11C27/02 , H03F3/45
CPC classification number: G01R19/1659 , G01R31/343 , G11C27/02 , H03F3/45179 , H03F2200/462
Abstract: A device measures the current in an inductive load using two separate current-measuring paths to detect the current in the inductive load. The inductive load is connected between first and second nodes, and the first node connected to a first voltage. The device includes first and second transistors cascaded together between the first node and a third node that is connected to a second voltage. First and second sense amplifiers measure the current in the inductive load. The first and second sense amplifiers are connected to at least one terminal of the first and second transistors. Two blocks sample and hold signals from the first and second sense amplifiers, which represent, respectively, the currents in the two separate current-measuring paths. The two currents are subtracted in a comparison node for generating an error signal that is compared with a predefined window and if outside the window a failure signal is generated.
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公开(公告)号：US09992916B2
公开(公告)日：2018-06-05
申请号：US14595391
申请日：2015-01-13
Inventor： Giovanni Luca Torrisi , Domenico Massimo Porto , Sergio Lecce , Manuel Gaertner
CPC classification number: H05K7/20945 , H01L23/34 , H01L2924/0002 , H03K2017/0806 , Y10T307/773 , H01L2924/00
Abstract: A thermal control process for an electronic power device including a multi-junction integrated circuit may include defining a first and at least one second groups of junctions, with each group including one first and at least one second junctions, and associating a thermal detector with each group. A first group control may be executed which detects group electric signals representative of the temperature detected by the thermal detectors, processes the group electric signals with reference to a group critical thermal event, identifies a critical group when the corresponding group electric signal detects the critical group thermal event, and generates group deactivating signals suitable for selectively deactivating the first and the at least one second junctions of the identified critical group with respect to the remaining junctions of the integrated circuit.
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公开(公告)号：US20170322240A1
公开(公告)日：2017-11-09
申请号：US15372127
申请日：2016-12-07
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Vanni Poletto , Riccardo Miglierina , Antonio Davide Leone , Sergio Lecce
IPC: G01R19/165 , G11C27/02 , H03F3/45
CPC classification number: G01R19/1659 , G01R31/343 , G11C27/02 , H03F3/45179 , H03F2200/462
Abstract: A device measures the current in an inductive load using two separate current-measuring paths to detect the current in the inductive load. The inductive load is connected between first and second nodes, and the first node connected to a first voltage. The device includes first and second transistors cascaded together between the first node and a third node that is connected to a second voltage. First and second sense amplifiers measure the current in the inductive load. The first and second sense amplifiers are connected to at least one terminal of the first and second transistors. Two blocks sample and hold signals from the first and second sense amplifiers, which represent, respectively, the currents in the two separate current-measuring paths. The two currents are subtracted in a comparison node for generating an error signal that is compared with a predefined window and if outside the window a failure signal is generated.
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公开(公告)号：US10813187B2
公开(公告)日：2020-10-20
申请号：US16446114
申请日：2019-06-19
Inventor： Manuel Gaertner , Sergio Lecce , Giovanni Luca Torrisi
Abstract: An integrated device for driving a lighting load, such as a LED, has a first memory element, configured to store a nominal duty-cycle at a nominal supply voltage. An actual voltage acquisition element is configured to detect an actual supply voltage. A processing unit is coupled to the first memory element and to the actual voltage acquisition element and configured to calculate a voltage compensated duty-cycle. A driver unit is coupled to the processing unit and is configured to be supplied according to the voltage compensated duty-cycle.
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Patent Agency Ranking
公开(公告)号：US10444264B2
公开(公告)日：2019-10-15
申请号：US16262521
申请日：2019-01-30
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Vanni Poletto , Riccardo Miglierina , Antonio Davide Leone , Sergio Lecce
IPC: G01R19/165 , G01R31/34 , H03F3/45 , G11C27/02
Abstract: A device measures the current in an inductive load using two separate current-measuring paths to detect the current in the inductive load. The inductive load is connected between first and second nodes, and the first node connected to a first voltage. The device includes first and second transistors cascaded together between the first node and a third node that is connected to a second voltage. First and second sense amplifiers measure the current in the inductive load. The first and second sense amplifiers are connected to at least one terminal of the first and second transistors. Two blocks sample and hold signals from the first and second sense amplifiers, which represent, respectively, the currents in the two separate current-measuring paths. The two currents are subtracted in a comparison node for generating an error signal that is compared with a predefined window and if outside the window a failure signal is generated.
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17.发明申请公开(公告)号：US20190306941A1
公开(公告)日：2019-10-03
申请号：US16446114
申请日：2019-06-19
Inventor： Manuel Gaertner , Sergio Lecce , Giovanni Luca Torrisi
Abstract: An integrated device for driving a lighting load, such as a LED, has a first memory element, configured to store a nominal duty-cycle at a nominal supply voltage. An actual voltage acquisition element is configured to detect an actual supply voltage. A processing unit is coupled to the first memory element and to the actual voltage acquisition element and configured to calculate a voltage compensated duty-cycle. A driver unit is coupled to the processing unit and is configured to be supplied according to the voltage compensated duty-cycle.
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公开(公告)号：US10231365B2
公开(公告)日：2019-03-12
申请号：US15982534
申请日：2018-05-17
Inventor： Domenico Massimo Porto , Giovanni Luca Torrisi , Manuel Gaertner , Sergio Lecce
Abstract: A thermal control process for an electronic power device including a multi junction integrated circuit may include defining a first and at least one second groups of junctions, with each group including one first and at least one second junctions, and associating a thermal detector with each group. A first group control may be executed which detects group electric signals representative of the temperature detected by the thermal detectors, processes the group electric signals with reference to a group critical thermal event, identifies a critical group when the corresponding group electric signal detects the critical group thermal event, and generates group deactivating signals suitable for selectively deactivating the first and the at least one second junctions of the identified critical group with respect to the remaining junctions of the integrated circuit.
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19.发明申请公开(公告)号：US20180270996A1
公开(公告)日：2018-09-20
申请号：US15982534
申请日：2018-05-17
Inventor： Domenico Massimo Porto , Giovanni Luca Torrisi , Manuel Gaertner , Sergio Lecce
CPC classification number: H05K7/20945 , H01L23/34 , H01L2924/0002 , H03K2017/0806 , Y10T307/773 , H01L2924/00
Abstract: A thermal control process for an electronic power device including a multi junction integrated circuit may include defining a first and at least one second groups of junctions, with each group including one first and at least one second junctions, and associating a thermal detector with each group. A first group control may be executed which detects group electric signals representative of the temperature detected by the thermal detectors, processes the group electric signals with reference to a group critical thermal event, identifies a critical group when the corresponding group electric signal detects the critical group thermal event, and generates group deactivating signals suitable for selectively deactivating the first and the at least one second junctions of the identified critical group with respect to the remaining junctions of the integrated circuit.
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公开(公告)号：US09929556B2
公开(公告)日：2018-03-27
申请号：US14753103
申请日：2015-06-29
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Vanni Poletto , Manuel Gaertner , Sergio Lecce , Giovanni Luca Torrisi
IPC: H02H3/05 , H02H7/085 , H02H7/09 , H03K19/007 , H02H7/08
CPC classification number: H02H3/05 , H02H7/0844 , H02H7/0851 , H02H7/0852 , H02H7/09 , H03K19/007
Abstract: A fail-safe device may be coupled to a main device for actuating a switch responsive to a failure. The fail-safe device may include a fail-safe circuit, and an isolation trench surrounding the fail-safe circuit and isolating the fail-safe circuit from the main device. The fail-safe device may include an internal power supply connection, an internal reference voltage connection, a self-biased drive block configured to drive the at least one switch, and a receiver configured to receive failure signals from the main device.
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