Patents by Inventor Cory Voisine
Cory Voisine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230084169Abstract: An apparatus including; a substrate; an isolator that is formed over the substrate, the isolator including a silicon shield layer that is formed between a first buried oxide (BOX) layer and a second BOX layer; a silicon layer having an oxide trench structure formed therein, the oxide trench structure being arranged to define a first silicon island and a second silicon island; a first electronic circuit that is formed over the first silicon island; and a second electronic circuit that is formed over the second silicon island, the first electronic circuit being electrically coupled to the first electronic circuit.Type: ApplicationFiled: October 31, 2022Publication date: March 16, 2023Applicant: Allegro MicroSystems, LLCInventors: Sundar Chetlur, Maxim Klebanov, Cory Voisine, Kenneth Snowdon, Hsuan-Jung Wu
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Patent number: 11515246Abstract: An apparatus, comprising: a substrate; a coupling capacitor that is formed over the substrate; and an isolator that is formed between the substrate and the coupling capacitor, the isolator including: (a) an MP-well layer, (b) a first well layer, (c) an epi tub layer that is nested in the MP-well layer and the first well layer, and (d) a second well layer that is nested in the epi tub layer.Type: GrantFiled: October 9, 2020Date of Patent: November 29, 2022Assignee: Allegro MicroSystems, LLCInventors: Sundar Chetlur, Maxim Klebanov, Cory Voisine, Kenneth Snowdon, Hsuan-Jung Wu
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Publication number: 20220115316Abstract: An apparatus, comprising: a substrate; a coupling capacitor that is formed over the substrate; and an isolator that is formed between the substrate and the coupling capacitor, the isolator including: (a) an MP-well layer, (b) a first well layer, (c) an epi tub layer that is nested in the MP-well layer and the first well layer, and (d) a second well layer that is nested in the epi tub layer.Type: ApplicationFiled: October 9, 2020Publication date: April 14, 2022Applicant: Allegro MicroSystems, LLCInventors: Sundar Chetlur, Maxim Klebanov, Cory Voisine, Kenneth Snowdon, Hsuan-Jung Wu
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Patent number: 11115244Abstract: A signal isolator integrated circuit package includes a first circuit having a first input and a first output, a second circuit having a second input and a second output, an isolation barrier layer between the first circuit and the second circuit, wherein the second output of the second circuit is coupled to the first input of the first circuit through the isolation barrier. The signal isolator includes a comparator configured to compare the first input of the first circuit to the second output of the second circuit. The second output can be configured to convey at least three states, including a first state indicative of a logical high of an input signal received at the first input, a second state indicative of a logical low of the input signal, and a third state indicative of a fault condition.Type: GrantFiled: March 5, 2020Date of Patent: September 7, 2021Assignee: Allegro MicroSystems, LLCInventors: Robert A. Briano, Pedram Sotoodeh Shahnani, Cory Voisine
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Publication number: 20210083907Abstract: A signal isolator integrated circuit package includes a first circuit having a first input and a first output, a second circuit having a second input and a second output, an isolation barrier layer between the first circuit and the second circuit, wherein the second output of the second circuit is coupled to the first input of the first circuit through the isolation barrier. The signal isolator includes a comparator configured to compare the first input of the first circuit to the second output of the second circuit. The second output can be configured to convey at least three states, including a first state indicative of a logical high of an input signal received at the first input, a second state indicative of a logical low of the input signal, and a third state indicative of a fault condition.Type: ApplicationFiled: March 5, 2020Publication date: March 18, 2021Applicant: Allegro MicroSystems, LLCInventors: Robert A. Briano, Pedram Sotoodeh Shahnani, Cory Voisine
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Patent number: 10718794Abstract: A current sensor integrated circuit including a magnetic field sensing element, a current conductor, an insulation structure, and a power calculation circuit is configured to meet safety isolation requirements. Isolation resistors allow for voltage from a high voltage side to be sensed at a low voltage side of the circuit. The insulation structure, current sensor package, and isolation resistors can achieve at least 500 Vrms isolation.Type: GrantFiled: June 20, 2018Date of Patent: July 21, 2020Assignee: Allegro Microsystems, LLCInventors: Georges El Bacha, Evan Shorman, Cory Voisine, Alexander Latham, William P. Taylor
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Patent number: 10641802Abstract: Systems and methods described herein provide a current sensor having fault detection circuitry configured to detect over-current and/or current faults corresponding to current through a conductor being greater than a predetermined level. The current sensor can include a shared signal path, a main signal path, and a fault detection signal path to perform both fault detection and current detection signal processing. The current sensor can include one or more magnetic field sensing elements configured to generate a magnetic field signal indicative of the current through the conductor, an analog-to-digital converter (ADC) configured to receive the magnetic field signal and convert the magnetic field signal into a digital signal, and a fault detector responsive to the digital signal to generate a fault signal indicative of the current through the conductor being greater than a predetermined level.Type: GrantFiled: March 22, 2018Date of Patent: May 5, 2020Assignee: Allegro MicroSystems, LLCInventors: Craig S. Petrie, Soo-Chang Choe, Cory Voisine
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Publication number: 20190391185Abstract: A current sensor integrated circuit including a magnetic field sensing element, a current conductor, an insulation structure, and a power calculation circuit is configured to meet safety isolation requirements. The current sensor integrated circuit may include or be used with isolation resistors to allow for voltage from a high voltage side to be sensed at a low voltage side of the circuit. The insulation structure, current sensor package, and isolation resistors can achieve at least 500 Vrms isolation.Type: ApplicationFiled: June 20, 2018Publication date: December 26, 2019Applicant: Allegro MicroSystems, LLCInventors: Georges El Bacha, Evan Shorman, Cory Voisine, Alexander Latham, William P. Taylor
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Publication number: 20190293694Abstract: Systems and methods described herein provide a current sensor having fault detection circuitry configured to detect over-current and/or current faults corresponding to current through a conductor being greater than a predetermined level. The current sensor can include a shared signal path, a main signal path, and a fault detection signal path to perform both fault detection and current detection signal processing. The current sensor can include one or more magnetic field sensing elements configured to generate a magnetic field signal indicative of the current through the conductor, an analog-to-digital converter (ADC) configured to receive the magnetic field signal and convert the magnetic field signal into a digital signal, and a fault detector responsive to the digital signal to generate a fault signal indicative of the current through the conductor being greater than a predetermined level.Type: ApplicationFiled: March 22, 2018Publication date: September 26, 2019Applicant: Allegro MicroSystems, LLCInventors: Craig S. Petrie, Soo-Chang Choe, Cory Voisine
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Patent number: 8937797Abstract: An integrated circuit includes circuitry to sense the occurrence of a break in a ground connection and/or supply connection and to indicate same to an exterior environment. In at least one implementation, the break may be indicated by providing a signal on an output terminal of the device that is not associated with a normal output of the device.Type: GrantFiled: March 19, 2012Date of Patent: January 20, 2015Assignee: Allegro Microsystems, LLCInventors: Franco Noel Martin Pirchio, Cory Voisine, Hernan D. Romero, Gerardo Monreal
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Publication number: 20130242447Abstract: An integrated circuit includes circuitry to sense the occurrence of a break in a ground connection and/or supply connection and to indicate same to an exterior environment. In at least one implementation, the break may be indicated by providing a signal on an output terminal of the device that is not associated with a normal output of the device.Type: ApplicationFiled: March 19, 2012Publication date: September 19, 2013Applicant: Allegro Microsystems, Inc.Inventors: Franco Noel Martin Pirchio, Cory Voisine, Hernan D. Romero, Gerardo Monreal
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Patent number: 7619406Abstract: Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.Type: GrantFiled: March 3, 2008Date of Patent: November 17, 2009Assignee: Allegro Microsystems, Inc.Inventors: Cory Voisine, Devon Fernandez, Karl Scheller, Ravi Vig, Kirsten Doogue
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Patent number: 7548056Abstract: Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.Type: GrantFiled: March 3, 2008Date of Patent: June 16, 2009Assignee: Allegro Microsystems, Inc.Inventors: Cory Voisine, Devon Fernandez, Karl Scheller, Ravi Vig, Kirsten Doogue
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Publication number: 20080143327Abstract: Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.Type: ApplicationFiled: March 3, 2008Publication date: June 19, 2008Inventors: Cory Voisine, Devon Fernandez, Karl Scheller, Ravi Vig, Kirsten Doogue
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Publication number: 20080143326Abstract: Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.Type: ApplicationFiled: March 3, 2008Publication date: June 19, 2008Inventors: Cory Voisine, Devon Fernandez, Karl Scheller, Ravi Vig, Kirsten Doogue
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Patent number: 7362094Abstract: Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.Type: GrantFiled: January 17, 2006Date of Patent: April 22, 2008Assignee: Allegro Microsystems, Inc.Inventors: Cory Voisine, Devon Fernandez, Karl Scheller, Ravi Vig, Kirsten Doogue
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Publication number: 20070164732Abstract: Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter.Type: ApplicationFiled: January 17, 2006Publication date: July 19, 2007Inventors: Cory Voisine, Devon Fernandez, Karl Scheller, Ravi Vig, Kirsten Doogue