Patents by Inventor Leonard Shtargot
Leonard Shtargot 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: 11955437Abstract: Techniques are provided for containing magnetic fields generated by an integrated switching package and for reducing electromagnetic interference generated from an integrated switching package.Type: GrantFiled: May 6, 2021Date of Patent: April 9, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Leonard Shtargot, Zafer Kutlu, John Underhill Gardner
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Publication number: 20230295811Abstract: Various examples are directed to a solar power electrolyzer system comprising a first electrolyzer stack, a second electrolyzer stack, a first converter and a first converter controller. The first electrolyzer stack may be electrically coupled in series with a photovoltaic array. The first converter may be electrically coupled in series with the first electrolyzer stack and electrically coupled in series with the photovoltaic array. The second electrolyzer stack electrically may be coupled at an output of the first converter. The first converter controller may be configured to control a current gain of the first converter.Type: ApplicationFiled: May 23, 2023Publication date: September 21, 2023Inventors: Brian Harrington, Leonard Shtargot, Antonio Montalvo
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Patent number: 11697882Abstract: Various examples are directed to a solar power electrolyzer system comprising a first electrolyzer stack, a second electrolyzer stack, a first converter and a first converter controller. The first electrolyzer stack may be electrically coupled in series with a photovoltaic array. The first converter may be electrically coupled in series with the first electrolyzer stack and electrically coupled in series with the photovoltaic array. The second electrolyzer stack electrically may be coupled at an output of the first converter. The first converter controller may be configured to control a current gain of the first converter.Type: GrantFiled: June 3, 2021Date of Patent: July 11, 2023Assignee: Analog Devices, Inc.Inventors: Brian Harrington, Leonard Shtargot, Antonio Montalvo
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Publication number: 20230141865Abstract: A lateral GaN superjunction transistor or switching device that is configured to have higher breakdown voltage and lower on-resistance as compared to other GaN-based switching devices. The lateral GaN superjunction transistor includes a heavily doped buried implant region (hereinafter, “buried implant region”) in the substrate underlying the transistor that operates as backside field plate (BFP) to control or reduce gate-drain electric fields at the surface of the transistor, thereby enabling the transistor to operate at higher voltages while reducing charge trapping and breakdown effects. The lateral GaN superjunction transistor operates similarly to a vertical silicon superjunction FET to enable operation of the transistor at higher voltages than other GaN or semiconductor devices, such as to enable the construction of faster or higher power electronic circuits.Type: ApplicationFiled: October 25, 2022Publication date: May 11, 2023Inventors: James G. Fiorenza, Daniel Piedra, Leonard Shtargot, F. Jacob Steigerwald
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Patent number: 11574766Abstract: A space efficient planar transformer can include a coupled inductor circuit that can include a metallic core, a first planar winding comprising a conductive coil having an electrical path encircling a first post of the metallic core, and a second planar winding configured to magnetically couple with the first winding via the metallic core. The second planar winding can have multiple portions. A portion of the second winding can include a first sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post and a second sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post. A layout of the first sub-portion can be oriented opposite a layout of the second sub-portion.Type: GrantFiled: April 17, 2020Date of Patent: February 7, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Xinyu Liang, Jonathan Paolucci, Leonard Shtargot
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Publication number: 20220389595Abstract: Various examples are directed to a solar power electrolyzer system comprising a first electrolyzer stack, a second electrolyzer stack, a first converter and a first converter controller. The first electrolyzer stack may be electrically coupled in series with a photovoltaic array. The first converter may be electrically coupled in series with the first electrolyzer stack and electrically coupled in series with the photovoltaic array. The second electrolyzer stack electrically may be coupled at an output of the first converter. The first converter controller may be configured to control a current gain of the first converter.Type: ApplicationFiled: June 3, 2021Publication date: December 8, 2022Inventors: Brian Harrington, Leonard Shtargot, Antonio Montalvo
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Publication number: 20210327634Abstract: A space efficient planar transformer can include a coupled inductor circuit that can include a metallic core, a first planar winding comprising a conductive coil having an electrical path encircling a first post of the metallic core, and a second planar winding configured to magnetically couple with the first winding via the metallic core. The second planar winding can have multiple portions. A portion of the second winding can include a first sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post and a second sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post. A layout of the first sub-portion can be oriented opposite a layout of the second sub-portion.Type: ApplicationFiled: April 17, 2020Publication date: October 21, 2021Inventors: Xinyu Liang, Jonathan Paolucci, Leonard Shtargot
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Publication number: 20210257313Abstract: Techniques are provided for containing magnetic fields generated by an integrated switching package and for reducing electromagnetic interference generated from an integrated switching package.Type: ApplicationFiled: May 6, 2021Publication date: August 19, 2021Inventors: Leonard Shtargot, Zafer Kutlu, John Underhill Gardner
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Patent number: 11075502Abstract: Techniques to achieve higher power/shorter pulses with a laser diode. By initially applying a static reverse bias across the laser diode, the laser diode can turn on at a larger inductor current. When the laser diode is initially reverse biased, depletion charge and diffusion charge can be populated before the laser diode will lase. This causes the laser diode to initially turn on at a larger inductor current, which will reduce the rise time, thereby achieving higher power/shorter pulses.Type: GrantFiled: August 29, 2019Date of Patent: July 27, 2021Assignee: Analog Devices, Inc.Inventors: Shawn S. Kuo, Ronald A. Kapusta, Xu Tang, Leonard Shtargot, Eugene L. Cheung, Jonathan Paolucci
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Patent number: 11037883Abstract: Techniques are provided for containing magnetic fields generated by an integrated switching package and for reducing electromagnetic interference generated from an integrated switching package.Type: GrantFiled: November 16, 2018Date of Patent: June 15, 2021Assignee: Analog Devices International Unlimited CompanyInventors: Leonard Shtargot, Zafer Kutlu, John Underhill Gardner
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Publication number: 20210066885Abstract: Techniques to achieve higher power/shorter pulses with a laser diode. By initially applying a static reverse bias across the laser diode, the laser diode can turn on at a larger inductor current. When the laser diode is initially reverse biased, depletion charge and diffusion charge can be populated before the laser diode will lase. This causes the laser diode to initially turn on at a larger inductor current, which will reduce the rise time, thereby achieving higher power/shorter pulses.Type: ApplicationFiled: August 29, 2019Publication date: March 4, 2021Inventors: Shawn S. Kuo, Ronald A. Kapusta, Xu Tang, Leonard Shtargot, Eugene L. Cheung, Jonathan Paolucci
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Publication number: 20200161253Abstract: Techniques are provided for containing magnetic fields generated by an integrated switching package and for reducing electromagnetic interference generated from an integrated switching package.Type: ApplicationFiled: November 16, 2018Publication date: May 21, 2020Inventors: Leonard Shtargot, Zafer Kutlu, John Underhill Gardner
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Patent number: 10270330Abstract: A predicted ripple in the feedback voltage of a switching converter is generated, based on the ripple over a certain number of recent switching cycles. The DC portion of the feedback voltage is filtered out. This predicted feedback voltage ripple is then added to a fixed reference voltage to create a compensated reference voltage. The compensated reference voltage is applied to the non-inverting input of an error amplifier, and the feedback voltage (having a DC component and ripple) is applied to the inverting input of the error amplifier. Thus, substantially the same ripple component is applied to both inputs and cancels out. Therefore, the output of the error amplifier is not affected by the ripple in the feedback voltage, and a non-rippling control voltage is generated by the error amplifier. As a result, the gain-bandwidth product of the converter can be increased for faster response to transients.Type: GrantFiled: May 3, 2018Date of Patent: April 23, 2019Assignee: Linear Technology Holding LLCInventors: Michael T. Engelhardt, Leonard Shtargot
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Publication number: 20180331618Abstract: A predicted ripple in the feedback voltage of a switching converter is generated, based on the ripple over a certain number of recent switching cycles. The DC portion of the feedback voltage is filtered out. This predicted feedback voltage ripple is then added to a fixed reference voltage to create a compensated reference voltage. The compensated reference voltage is applied to the non-inverting input of an error amplifier, and the feedback voltage (having a DC component and ripple) is applied to the inverting input of the error amplifier. Thus, substantially the same ripple component is applied to both inputs and cancels out. Therefore, the output of the error amplifier is not affected by the ripple in the feedback voltage, and a non-rippling control voltage is generated by the error amplifier. As a result, the gain-bandwidth product of the converter can be increased for faster response to transients.Type: ApplicationFiled: May 3, 2018Publication date: November 15, 2018Inventors: Michael T. Engelhardt, Leonard Shtargot
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Patent number: 9966832Abstract: A predicted ripple in the feedback voltage of a switching converter is generated, based on the ripple over a certain number of recent switching cycles. The DC portion of the feedback voltage is filtered out. This predicted feedback voltage ripple is then added to a fixed reference voltage to create a compensated reference voltage. The compensated reference voltage is applied to the non-inverting input of an error amplifier, and the feedback voltage (having a DC component and ripple) is applied to the inverting input of the error amplifier. Thus, substantially the same ripple component is applied to both inputs and cancels out. Therefore, the output of the error amplifier is not affected by the ripple in the feedback voltage, and a non-rippling control voltage is generated by the error amplifier. As a result, the gain-bandwidth product of the converter can be increased for faster response to transients.Type: GrantFiled: May 9, 2017Date of Patent: May 8, 2018Assignee: Linear Technology CorporationInventors: Michael T. Engelhardt, Leonard Shtargot
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Patent number: 9431319Abstract: An integrated circuit package may include a semiconductor die, a heat spreader, and encapsulation material. The semiconductor die may contain an electronic circuit and exposed electrical connections to the electronic circuit. The heat spreader may be thermally-conductive and may have a first outer surface and a second outer surface substantially parallel to the first outer surface. The first outer surface may be affixed to all portions of a silicon side of the semiconductor die in a thermally-conductive manner. The encapsulation material may be non-electrically conductive and may completely encapsulate the semiconductor die and the heat spreader, except for the second surface of the heat spreader. The second surface of the heat spreader may be solderable and may form part of an exterior surface of the integrated circuit package.Type: GrantFiled: February 24, 2015Date of Patent: August 30, 2016Assignee: LINEAR TECHNOLOGY CORPORATIONInventors: Edward William Olsen, Leonard Shtargot, David Roy Ng, Jeffrey Kingan Witt
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Publication number: 20160035644Abstract: An integrated circuit package may include a semiconductor die, a heat spreader, and encapsulation material. The semiconductor die may contain an electronic circuit and exposed electrical connections to the electronic circuit. The heat spreader may be thermally-conductive and may have a first outer surface and a second outer surface substantially parallel to the first outer surface. The first outer surface may be affixed to all portions of a silicon side of the semiconductor die in a thermally-conductive manner. The encapsulation material may be non-electrically conductive and may completely encapsulate the semiconductor die and the heat spreader, except for the second surface of the heat spreader. The second surface of the heat spreader may be solderable and may form part of an exterior surface of the integrated circuit package.Type: ApplicationFiled: February 24, 2015Publication date: February 4, 2016Inventors: Edward William Olsen, Leonard Shtargot, David Roy Ng, Jeffrey Kingan Witt
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Publication number: 20160035645Abstract: A flipchip package may include a semiconductor die, a heat spreader, and encapsulation material. The semiconductor die may contain an electronic circuit and exposed electrical connections to the electronic circuit. The heat spreader may be thermally-conductive and may have a first outer surface and a second outer surface substantially parallel to the first outer surface. The first outer surface may be affixed to all portions of a silicon side of the semiconductor die in a thermally-conductive manner. The encapsulation material may be non-electrically conductive and may completely encapsulate the semiconductor die and the heat spreader, except for the second surface of the heat spreader. The second surface of the heat spreader may be solderable and may form part of an exterior surface of the flipchip package.Type: ApplicationFiled: February 24, 2015Publication date: February 4, 2016Inventors: Edward William Olsen, David A. Pruitt, Gregory S. Peck, Leonard Shtargot
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Patent number: 8823345Abstract: This invention uses new switching regulator structures to split single magnetic loops into multiple magnetic loops, with linked opposing magnetic fields, to cause a cancelling effect, resulting in a much lower overall magnetic field. This results in lower EMI. In one embodiment, synchronously switched transistors are divided up into parallel topside transistors and parallel bottomside transistors. The topside transistors are positioned to oppose the bottomside transistors, and bypass capacitors are connected between the pairs to create a plurality of current loops. The components are arranged to form a mirror image of the various current loops so that the resulting magnetic fields are in opposite directions and substantially cancel each other out. Creating opposite current loops may also be achieved by forming the conductors and components in a figure 8 pattern with a cross-over point.Type: GrantFiled: December 10, 2012Date of Patent: September 2, 2014Assignee: Linear Technology CorporationInventors: Leonard Shtargot, Daniel Cheng, John Gardner, Jeffrey Witt, Christian Kueck
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Publication number: 20140111174Abstract: This invention uses new switching regulator structures to split single magnetic loops into multiple magnetic loops, with linked opposing magnetic fields, to cause a cancelling effect, resulting in a much lower overall magnetic field. This results in lower EMI. In one embodiment, synchronously switched transistors are divided up into parallel topside transistors and parallel bottomside transistors. The topside transistors are positioned to oppose the bottomside transistors, and bypass capacitors are connected between the pairs to create a plurality of current loops. The components are arranged to form a mirror image of the various current loops so that the resulting magnetic fields are in opposite directions and substantially cancel each other out. Creating opposite current loops may also be achieved by forming the conductors and components in a FIG. 8 pattern with a cross-over point.Type: ApplicationFiled: December 10, 2012Publication date: April 24, 2014Applicant: Linear Technology CorporationInventors: Leonard Shtargot, Daniel Cheng, John Gardner, Jeffrey Witt, Christian Kueck