Patents by Inventor David Kunst

David Kunst 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).

  • Publication number: 20220337170
    Abstract: An apparatus for conversion between AC and DC voltages includes a rectifier and first and second stages coupled to each other and having a regulator and a switched-capacitor circuit respectively. The first stage receives a first voltage from the rectifier and the second stage provides a second voltage. A controller controls the first and second stages.
    Type: Application
    Filed: January 4, 2022
    Publication date: October 20, 2022
    Inventors: David M. GIULIANO, David KUNST
  • Publication number: 20220329164
    Abstract: In a power converter, a regulator that receives a first voltage couples to a switched-capacitor converter that provides a second voltage. Slew-control circuitry controls slew rate within the switched-capacitor converter during operation thereof. A controller controls the operation of both the regulator and the switched-capacitor converter.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 13, 2022
    Inventors: David GIULIANO, David KUNST
  • Patent number: 11411501
    Abstract: In a power converter, a regulator that receives a first voltage couples to a switched-capacitor converter that provides a second voltage. Slew-control circuitry controls slew rate within the switched-capacitor converter during operation thereof. A controller controls the operation of both the regulator and the switched-capacitor converter.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: August 9, 2022
    Assignee: PSEMI CORPORATION
    Inventors: David Giuliano, David Kunst
  • Publication number: 20220166245
    Abstract: An apparatus for switching between powering a load from a battery and powering the load from another power source includes a battery manager and a switched-capacitor network, wherein the switched-capacitor network comprises a plurality of capacitors, first and second switch sets, and a controller, wherein the controller causes the switched-capacitor network to transition between a first state and a second state.
    Type: Application
    Filed: December 3, 2021
    Publication date: May 26, 2022
    Inventors: David M. GIULIANO, David KUNST
  • Patent number: 11258371
    Abstract: An apparatus for conversion between AC and DC voltages includes a rectifier and first and second stages coupled to each other and having a regulator and a switched-capacitor circuit respectively. The first stage receives a first voltage from the rectifier and the second stage provides a second voltage. A controller controls the first and second stages.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: February 22, 2022
    Assignee: pSemi Corporation
    Inventors: David M. Giuliano, David Kunst
  • Publication number: 20210075328
    Abstract: In a power converter, a regulator that receives a first voltage couples to a switched-capacitor converter that provides a second voltage. Slew-control circuitry controls slew rate within the switched-capacitor converter during operation thereof. A controller controls the operation of both the regulator and the switched-capacitor converter.
    Type: Application
    Filed: July 22, 2020
    Publication date: March 11, 2021
    Inventors: David Giuliano, David Kunst
  • Publication number: 20200382017
    Abstract: An apparatus for conversion between AC and DC voltages includes a rectifier and first and second stages coupled to each other and having a regulator and a switched-capacitor circuit respectively. The first stage receives a first voltage from the rectifier and the second stage provides a second voltage. A controller controls the first and second stages.
    Type: Application
    Filed: February 16, 2017
    Publication date: December 3, 2020
    Inventors: David M. Giuliano, David Kunst
  • Publication number: 20200295587
    Abstract: An apparatus for switching between powering a load from a battery and powering the load from another power source includes a battery manager and a switched-capacitor network, wherein the switched-capacitor network comprises a plurality of capacitors, first and second switch sets, and a controller, wherein the controller causes the switched-capacitor network to transition between a first state and a second state.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 17, 2020
    Inventors: David Giuliano, David Kunst
  • Patent number: 10770976
    Abstract: In a power converter, a regulator that receives a first voltage couples to a switched-capacitor converter that provides a second voltage. Slew-control circuitry controls slew rate within the switched-capacitor converter during operation thereof. A controller controls the operation of both the regulator and the switched-capacitor converter.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 8, 2020
    Assignee: pSemi Corporation
    Inventors: David Giuliano, David Kunst
  • Publication number: 20190089258
    Abstract: In a power converter, a regulator that receives a first voltage couples to a switched-capacitor converter that provides a second voltage. Slew-control circuitry controls slew rate within the switched-capacitor converter during operation thereof. A controller controls the operation of both the regulator and the switched-capacitor converter.
    Type: Application
    Filed: March 14, 2017
    Publication date: March 21, 2019
    Inventors: David Giuliano, David Kunst
  • Patent number: 9923358
    Abstract: This document discusses, among other things, a protection system and method configured to detect a parasitic impedance between first and second pins of a standard connector and to remove a current path between a power source and a supply pin of the standard connector if a low-impedance is detected, in certain examples, without adding a current sense resistance to a return path between a ground pin of the standard connector and the power source.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: March 20, 2018
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Zhibo Tao, David Kunst, Won-Seok Kang, Ke Hong
  • Patent number: 9667156
    Abstract: A line compensation circuit for a power supply includes a line voltage sense circuit and a current limit adjuster. The line voltage sense circuit senses a slope of an inductor current by way of a compensation capacitor that receives a sense voltage that is representative of the inductor current on a primary side of the power supply. A compensation current that is generated from the compensation capacitor is used by the current limit adjuster to adjust an output current limit of the power supply.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 30, 2017
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Zhibo Tao, David Kunst
  • Patent number: 9633162
    Abstract: An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: April 25, 2017
    Assignee: Active-Semi, Inc.
    Inventors: Steven Huynh, David Kunst
  • Publication number: 20160261196
    Abstract: A line compensation circuit for a power supply includes a line voltage sense circuit and a current limit adjuster. The line voltage sense circuit senses a slope of an inductor current by way of a compensation capacitor that receives a sense voltage that is representative of the inductor current on a primary side of the power supply. A compensation current that is generated from the compensation capacitor is used by the current limit adjuster to adjust an output current limit of the power supply.
    Type: Application
    Filed: February 17, 2016
    Publication date: September 8, 2016
    Applicant: FAIRCHILD SEMICONDUCTOR CORPORATION
    Inventors: Zhibo TAO, David KUNST
  • Publication number: 20150379182
    Abstract: An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Inventors: Steven Huynh, David Kunst
  • Patent number: 9167644
    Abstract: Embodiments described herein provide a LED lighting system and method. A transformer has a primary winding and a secondary winding. A plurality of LED strings are coupled to the secondary winding of the transformer. At least one switch is coupled to at least one of the plurality of LED strings. A controller is coupled to the at least one switch and configured to control the operation of the at least one switch such that current flows through the plurality of LED strings in an alternating manner.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: October 20, 2015
    Assignee: Google Inc.
    Inventors: David Kunst, Barry Loveridge
  • Patent number: 9141748
    Abstract: An integrated circuit (IC) and fabrication method thereof is provided that include the steps of specifying a plurality of required tile modules suitable for a particular end application, each of the modular tiles being configured to perform a predetermined function and constructed to have approximately the same length and width dimensions. The modular tiles are used to form the IC in a standard IC fabrication process. In many implementations, physical layout of the IC does not include the step of routing. Capabilities also include configuring the modular tiles to have programmable performance parameters and configuring the modular tiles to cooperate usefully with one another based on a programmable parameter.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: September 22, 2015
    Assignee: Active-Semi, Inc.
    Inventors: Steven Huynh, David Kunst
  • Publication number: 20150229119
    Abstract: This document discusses, among other things, a protection system and method configured to detect a parasitic impedance between first and second pins of a standard connector and to remove a current path between a power source and a supply pin of the standard connector if a low-impedance is detected, in certain examples, without adding a current sense resistance to a return path between a ground pin of the standard connector and the power source.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Inventors: Zhibo Tao, David Kunst, Won-Seok Kang, KE Hong
  • Publication number: 20150123550
    Abstract: Embodiments described herein provide a LED lighting system and method. A transformer has a primary winding and a secondary winding. A plurality of LED strings are coupled to the secondary winding of the transformer. At least one switch is coupled to at least one of the plurality of LED strings. A controller is coupled to the at least one switch and configured to control the operation of the at least one switch such that current flows through the plurality of LED strings in an alternating manner.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 7, 2015
    Inventors: David Kunst, Barry Loveridge
  • Patent number: 8842482
    Abstract: Embodiments of a circuit and method for setting initial trim bits in an integrated circuit (IC) are described. The circuit includes a memory array including a plurality of trim bit cells to store and provide trim bits to trim registers in a main circuit of the IC following energizing of the IC. The memory array further includes replica bit circuitry to generate a number of replica bits. A logic circuit coupled to the memory array and the main circuit of the IC is configured to receive the replica bits, and to provide a signal to the IC that indicates when the trim bits are valid. In one embodiment, the circuit further includes redundancy check logic configured to receive a number of the trim bits from the memory array, compare the number of trim bits to a pre-determined or computed value, and to provide a BITS_OK signal to the logic circuit.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 23, 2014
    Assignee: Cypress Semiconductor Corporation
    Inventors: David Kunst, Hans Van Antwerpen