Patents by Inventor Michael Gaboury
Michael Gaboury 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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Patent number: 11313899Abstract: Methods and apparatus for providing an integrated circuit having a drive current source, a magnetic sensing element coupled to the drive current source, the magnetic sensing element having first and second differential outputs, and first and second current elements to provide respective currents in relation to the drive current source, wherein the first current element is coupled to the first differential output and the second current element is coupled to the second differential output. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.Type: GrantFiled: October 17, 2019Date of Patent: April 26, 2022Assignee: Allegro MicroSystems, LLCInventors: Shaun D. Milano, Georges El Bacha, Michael C. Doogue, David J. Haas, Gregory Delmain, Michael Gaboury, William P. Taylor
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Publication number: 20200049760Abstract: Methods and apparatus for providing an integrated circuit having a drive current source, a magnetic sensing element coupled to the drive current source, the magnetic sensing element having first and second differential outputs, and first and second current elements to provide respective currents in relation to the drive current source, wherein the first current element is coupled to the first differential output and the second current element is coupled to the second differential output. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.Type: ApplicationFiled: October 17, 2019Publication date: February 13, 2020Applicant: Allegro MicroSystems, LLCInventors: Shaun D. Milano, Georges El Bacha, Michael C. Doogue, David J. Haas, Gregory Delmain, Michael Gaboury, William P. Taylor
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Patent number: 10488458Abstract: Methods and apparatus for providing an integrated circuit having a drive current source, a magnetic sensing element coupled to the drive current source, the magnetic sensing element having first and second differential outputs, and first and second current elements to provide respective currents in relation to the drive current source, wherein the first current element is coupled to the first differential output and the second current element is coupled to the second differential output. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.Type: GrantFiled: December 22, 2014Date of Patent: November 26, 2019Assignee: Allegro MicroSystems, LLCInventors: Shaun D. Milano, Georges El Bacha, Michael C. Doogue, David J. Haas, Gregory Delmain, Michael Gaboury, William P. Taylor
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Patent number: 10234516Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.Type: GrantFiled: May 25, 2018Date of Patent: March 19, 2019Assignee: Allegro MicroSystems, LLCInventors: David J. Haas, Michael Gaboury, Alexander Latham
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Patent number: 10120041Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.Type: GrantFiled: March 27, 2015Date of Patent: November 6, 2018Assignee: ALLEGRO MICROSYSTEMS, LLCInventors: David J. Haas, Michael Gaboury, Alexander Latham
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Publication number: 20180275214Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Applicant: Allegro MicroSystems, LLCInventors: David J. Haas, Michael Gaboury, Alexander Latham
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Publication number: 20160282425Abstract: In one aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall-type elements in parallel and connected to the chopper stabilized amplifier. In another aspect, a magnetic field sensor includes a chopper stabilized amplifier and a plurality of Hall quad elements in parallel and connected to the chopper stabilized amplifier. In a further aspect, a current sensor has a bandwidth of 1 MHz and includes a chopper stabilized amplifier and a plurality of Hall quad elements, fabricated in silicon, in parallel and connected to the chopper stabilized amplifier.Type: ApplicationFiled: March 27, 2015Publication date: September 29, 2016Applicant: ALLEGRO MICROSYSTEMS, LLCInventors: David J. Haas, Michael Gaboury, Alexander Latham
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Patent number: 9383425Abstract: Methods and apparatus for an integrated circuit having a magnetic sensing element, a fault detection module including circuitry to detect a fault condition and to self-test operation of the circuitry to detect the fault. The integrated circuit includes a fault pin to indicate the fault condition.Type: GrantFiled: December 28, 2012Date of Patent: July 5, 2016Assignee: Allegro Microsystems, LLCInventors: Shaun D. Milano, Thomas Kerdraon, Georges El Bacha, Michael Gaboury, Michael C. Doogue
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Publication number: 20150185293Abstract: Methods and apparatus for providing an integrated circuit having a drive current source, a magnetic sensing element coupled to the drive current source, the magnetic sensing element having first and second differential outputs, and first and second current elements to provide respective currents in relation to the drive current source, wherein the first current element is coupled to the first differential output and the second current element is coupled to the second differential output. In illustrative embodiments, an IC output can output a voltage corresponding to the currents of the first and second current elements.Type: ApplicationFiled: December 22, 2014Publication date: July 2, 2015Applicant: ALLEGRO MICROSYSTEMS, LLCInventors: Shaun D. Milano, Georges El Bacha, Michael C. Doogue, David J. Haas, Gregory Delmain, Michael Gaboury, William P. Taylor
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Publication number: 20140184200Abstract: Methods and apparatus for an integrated circuit having a magnetic sensing element, a fault detection module including circuitry to detect a fault condition and to self-test operation of the circuitry to detect the fault. The integrated circuit includes a fault pin to indicate the fault condition.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Inventors: Shaun D. Milano, Thomas Kerdraon, Georges El Bacha, Michael Gaboury, Michael C. Doogue
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Publication number: 20050057315Abstract: A ring oscillator with a plurality of delay stages having selectable active loads for selecting an R-C time constant that defines a delay through the delay stage. The ring oscillator oscillation frequency is a function of the selected R-C time constant, a selectable bias level, and the number of delay stages in the ring oscillator. In one embodiment, a MOSFET device gate-to-source capacitance is used with at least one selectable resistive device to form the R-C time constant. In an alternate embodiment, a plurality of parallel coupled resistive devices and parallel coupled capacitive devices are selectively coupled to the active load circuit to set the delay through the delay stage. The resistive devices are formed to be one of a resistor configured MOSFET device and a traditional resistive element. The capacitive devices are formed to be one of a capacitor configure MOSFET device and a traditional capacitive element.Type: ApplicationFiled: September 11, 2003Publication date: March 17, 2005Applicant: Xilinx, Inc.Inventors: Eric Groen, Charles Boecker, William Black, Michael Gaboury
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Patent number: 6140952Abstract: A delta sigma (also called sigma delta) analog-to-digital converter circuit has an integrator input couplable to an analog signal and has a clocked controller generating a converted digital output representing the analog signal. An offset circuit that is pulse width modulated generates an offset current to the integrator input that electronically offsets the frequency of noise in the converted output.Type: GrantFiled: December 21, 1998Date of Patent: October 31, 2000Assignee: Rosemount Inc.Inventor: Michael Gaboury
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Patent number: 6021162Abstract: A method of and apparatus for decoding an encoded signal are disclosed. A first bit of the encoded signal is received and integrated with a super linear integrator to provide a first integration signal. A first reference signal is provided as a function of a previous integration signal associated with a previous bit of the encoded signal by multiplying the previous integration signal by an amount greater than one if the previous bit has a first value, and by multiplying the previous integration signal by an amount less than one if the previous bit has a second value. The first integration signal is compared to the first reference signal and a first bit of an output signal is provided based upon the comparison. The first bit of the output signal is indicative of information encoded in the first bit of the encoded signal.Type: GrantFiled: October 1, 1997Date of Patent: February 1, 2000Assignee: Rosemount Inc.Inventors: Michael Gaboury, Xiaoxin Feng
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Patent number: 6005500Abstract: A transmitter includes a sensor adapted to sense a process variable and responsively provide a sensor analog output. An analog to digital converter provides a digitized output in response to the sensor analog output within a converter dynamic range. Signal range bracketing circuitry provides a bracketed range of the sensor analog output to the analog to digital converter for conversion. Outputs from the signal range bracketing circuitry and the analog to digital converter together provide a digital representation of the sensor analog output signal.Type: GrantFiled: June 6, 1997Date of Patent: December 21, 1999Assignee: Rosemount, Inc.Inventors: Michael Gaboury, Ramesh Harjani