Patents by Inventor Hemant Shukla
Hemant Shukla 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: 20250147081Abstract: A differential sensing system for sensing a current through a circuit element of a circuit, the differential sensing system comprising: a first current sense path having an input for coupling to a first node of the circuit element, the first current sense path comprising a first plurality of replica devices; a second current sense path having an input for coupling to a second node of the circuit element, the second current sense path comprising a second plurality of replica devices, wherein the second plurality is equal to the first plurality; a first cross-coupling switch operable to couple the input of the first current sense path to the second plurality of replica devices; a second cross-coupling switch operable to couple the input of the second current sense path to the first plurality of replica devices; differential amplifier circuitry having first and second inputs, wherein the differential amplifier circuitry is configured to output a differential replica current pair indicative of the current throughType: ApplicationFiled: February 28, 2024Publication date: May 8, 2025Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Hemant SHUKLA, Sven SOELL
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Publication number: 20250147078Abstract: A current sensing system for sensing current through first and second circuit elements of a circuit in which the first and second circuit elements are active in respective first and second phases of an operational cycle of the circuit, the current sensing system comprising: first current sensing circuitry for sensing a current through the first circuit element; second current sensing circuitry for sensing a current through the second circuit element; and summation circuitry coupled to an output of the first current sensing circuitry and an output of the second current sensing circuitry, wherein the summation circuitry is configured to output a summation signal indicative of a sum of the sensed current through the first circuit element and the sensed current through the second circuit element so as to provide an indication of a total current drawn over an operational cycle of the circuit.Type: ApplicationFiled: February 28, 2024Publication date: May 8, 2025Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Hemant SHUKLA, Sven SOELL, Paul WILSON, Deep SAXENA, Beata K. KUBIAK, Ross C. MORGAN, Malcolm BLYTH, Angus BLACK
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Patent number: 11228289Abstract: This application describes an amplifier circuit (200) with a forward signal path with a class-D output stage (102) for generating a driving signal (Sout) based on a digital input signal (Sin). The amplifier has a first feedback path for providing a first digital feedback signal (Sfb1) based on the driving signal and a second feedback path for providing a second digital feedback signal (Sfb2) from a digital part of the forward signal path. The digital input signal (Sin) is combined with a selected feedback signal (Sfbs). The amplifier circuit is selectively operable in a first mode, in which the first feedback signal is used as the selected feedback signal, and in a second mode, in which the second feedback signal is used as the selected feedback signal. A calibration module (204) is operable to calibrate the first feedback path to reduce any DC offset when the amplifier circuit is operating in the second mode.Type: GrantFiled: August 24, 2020Date of Patent: January 18, 2022Assignee: Cirrus Logic, Inc.Inventors: Angus Black, Hemant Shukla
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Patent number: 10037810Abstract: The peak voltage at which a voltage-setting transistor is driven is reduced while the body effect of the transistor is also compensated. The voltage-setting transistor is driven at an initial level and then coupled higher by a capacitor which is connected to the control gate of the voltage-setting transistor. The amount of coupling can vary as a function of an assigned data state of a memory cell connected to the transistor by a source line and/or bit line. The capacitor may have a body which is common to a set of memory cells. The voltage can be set prior to applying a program voltage to the control gate of a memory cell to control a programming speed of the memory cell based on its assigned data state. The voltage can also be set in connection with a sensing operation.Type: GrantFiled: June 27, 2017Date of Patent: July 31, 2018Assignee: SanDisk Technologies LLCInventors: Hemant Shukla, Saurabh Kumar Singh, Sridhar Yadala, Raul-Adrian Cernea, Anirudh Amarnath
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Patent number: 9927828Abstract: According to an embodiment, a voltage regulator includes a linear voltage regulator (LVR) and a transient feedback circuit. The LVR a primary feedback loop, an input terminal configured to receive an input voltage, and an output terminal configured to output a regulated voltage. The transient feedback circuit is coupled to the output terminal and the primary feedback loop, and is configured to provide a first current with a first polarity to the primary feedback loop when current flowing through the output terminal is increasing.Type: GrantFiled: August 31, 2015Date of Patent: March 27, 2018Assignee: STMicroelectronics International N.V.Inventors: Hemant Shukla, SaurabhKumar Singh, Nitin Bansal
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Publication number: 20170255215Abstract: A voltage regulator circuit is provided in which voltage overshoots are quickly dissipated using a discharge path which is connected to an output of the voltage regulator. Circuitry for controlling the discharge path is provided using internal currents of an error amplifier to provide a space-efficient and power-efficient design with a fast response. Moreover, hysteresis can be provided to avoid toggling between discharge and no discharge, and to avoid undershoot when discharging the output. A digital or analog signal is set which turns the discharge transistor on or off. A current pulldown may be arranged in the discharge path.Type: ApplicationFiled: April 14, 2016Publication date: September 7, 2017Applicant: SanDisk Technologies Inc.Inventors: Hemant Shukla, Saurabh Kumar Singh
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Patent number: 9753476Abstract: A voltage regulator circuit is provided in which voltage overshoots are quickly dissipated using a discharge path which is connected to an output of the voltage regulator. Circuitry for controlling the discharge path is provided using internal currents of an error amplifier to provide a space-efficient and power-efficient design with a fast response. Moreover, hysteresis can be provided to avoid toggling between discharge and no discharge, and to avoid undershoot when discharging the output. A digital or analog signal is set which turns the discharge transistor on or off. A current pulldown may be arranged in the discharge path.Type: GrantFiled: April 14, 2016Date of Patent: September 5, 2017Assignee: SanDisk Technologies LLCInventors: Hemant Shukla, Saurabh Kumar Singh
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Patent number: 9651958Abstract: An electronic device includes a power supply, a ground, and an intermediate ground having a voltage less than a voltage of the power supply and greater than a voltage of the ground. The electronic device also includes an error amplifier having an input stage coupled between the power supply and the ground, and an output stage coupled between the power supply and the intermediate ground. A ballast transistor is coupled to receive an output from the error amplifier. A feedback circuit is coupled to an output of the ballast transistor to generate feedback signals, and the error amplifier operates in response to the feedback signals.Type: GrantFiled: April 18, 2016Date of Patent: May 16, 2017Assignee: STMicroelectronics International N.V.Inventors: Nitin Bansal, Saurabh Kumar Singh, Hemant Shukla
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Publication number: 20170060166Abstract: According to an embodiment, a voltage regulator includes a linear voltage regulator (LVR) and a transient feedback circuit. The LVR a primary feedback loop, an input terminal configured to receive an input voltage, and an output terminal configured to output a regulated voltage. The transient feedback circuit is coupled to the output terminal and the primary feedback loop, and is configured to provide a first current with a first polarity to the primary feedback loop when current flowing through the output terminal is increasing.Type: ApplicationFiled: August 31, 2015Publication date: March 2, 2017Inventors: Hemant Shukla, SaurabhKumar Singh, Nitin Bansal
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Publication number: 20160231758Abstract: An electronic device includes a power supply, a ground, and an intermediate ground having a voltage less than a voltage of the power supply and greater than a voltage of the ground. The electronic device also includes an error amplifier having an input stage coupled between the power supply and the ground, and an output stage coupled between the power supply and the intermediate ground. A ballast transistor is coupled to receive an output from the error amplifier. A feedback circuit is coupled to an output of the ballast transistor to generate feedback signals, and the error amplifier operates in response to the feedback signals.Type: ApplicationFiled: April 18, 2016Publication date: August 11, 2016Applicant: STMicroelectronics International N.V.Inventors: Nitin Bansal, Saurabh Kumar Singh, Hemant Shukla
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Patent number: 9342085Abstract: An electronic device includes a power supply, a ground, and an intermediate ground having a voltage less than a voltage of the power supply and greater than a voltage of the ground. The electronic device also includes an error amplifier having an input stage coupled between the power supply and the ground, and an output stage coupled between the power supply and the intermediate ground. A ballast transistor is coupled to receive an output from the error amplifier. A feedback circuit is coupled to an output of the ballast transistor to generate feedback signals, and the error amplifier operates in response to the feedback signals.Type: GrantFiled: October 13, 2014Date of Patent: May 17, 2016Assignee: STMICROELECTRONICS INTERNATIONAL N.V.Inventors: Hemant Shukla, Saurabh Kumar Singh, Nitin Bansal
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Publication number: 20160103458Abstract: An electronic device includes a power supply, a ground, and an intermediate ground having a voltage less than a voltage of the power supply and greater than a voltage of the ground. The electronic device also includes an error amplifier having an input stage coupled between the power supply and the ground, and an output stage coupled between the power supply and the intermediate ground. A ballast transistor is coupled to receive an output from the error amplifier. A feedback circuit is coupled to an output of the ballast transistor to generate feedback signals, and the error amplifier operates in response to the feedback signals.Type: ApplicationFiled: October 13, 2014Publication date: April 14, 2016Applicant: STMICROELECTRONICS INTERNATIONAL N.V.Inventors: Hemant Shukla, Saurabh Kumar Singh, Nitin Bansal
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Patent number: 9229462Abstract: An FDSOI integrated circuit die supplies on an output node a regulated output voltage based on a reference voltage. A pass transistor that passes a first current to the output node. A feedback loop regulates the output voltage by generating a second current based on the first current and applying a control signal to the pass transistor based on the second current. A loop current adaptor adapts a ratio of the first and second currents by adjusting a back gate bias voltage applied to a back gate of loop transistor of the feedback loop.Type: GrantFiled: June 30, 2015Date of Patent: January 5, 2016Assignee: STMicroelectronics International N.V.Inventors: Hemant Shukla, Saurabh Kumar Singh, Nitin Bansal
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Publication number: 20150301540Abstract: An FDSOI integrated circuit die supplies on an output node a regulated output voltage based on a reference voltage. A pass transistor that passes a first current to the output node. A feedback loop regulates the output voltage by generating a second current based on the first current and applying a control signal to the pass transistor based on the second current. A loop current adaptor adapts a ratio of the first and second currents by adjusting a back gate bias voltage applied to a back gate of loop transistor of the feedback loop.Type: ApplicationFiled: June 30, 2015Publication date: October 22, 2015Inventors: Hemant Shukla, Saurabh Kumar Singh, Nitin Bansal