Patents by Inventor Stefan Herzer

Stefan Herzer 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: 20210344272
    Abstract: A voltage regulation circuit includes a switching output terminal, a high-side output transistor, a low-side output transistor, a high-side replica transistor, a low-side replica transistor, and a comparator circuit. The high-side output transistor is configured to drive the switching output terminal. The low-side output transistor is configured to drive the switching output terminal. The high-side replica transistor is coupled to the high-side output transistor. The low-side replica transistor is coupled to the high-side replica transistor and the low-side output transistor. The comparator circuit is coupled to the high-side replica transistor and the low-side replica transistor, and is configured to compare a signal received from both the high-side replica transistor and the low-side replica transistor to a ramp signal.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Inventors: Neil GIBSON, Stefan HERZER
  • Patent number: 11139365
    Abstract: An integrated circuit comprising: a source comprising an output port; a set of serially-connected resistors electrically coupled to the output port of the source; a comparator comprising a first input port, a second input port, and an output port; a set of switches, each switch in the set of switches comprising a first terminal electrically coupled to the first input port of the comparator, and a second terminal electrically coupled to the set of serially-connected resistors; a current source comprising an output port electrically coupled to the second input port of the comparator; and a pin electrically coupled to the output port of the current source.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: October 5, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Michael Uwe Schlenker, Stefan Herzer, Konrad Wagensohner
  • Patent number: 11095220
    Abstract: A voltage regulation circuit includes a switching output terminal, a high-side output transistor, a low-side output transistor, a high-side replica transistor, a low-side replica transistor, and a comparator circuit. The high-side output transistor is configured to drive the switching output terminal. The low-side output transistor is configured to drive the switching output terminal. The high-side replica transistor is coupled to the high-side output transistor. The low-side replica transistor is coupled to the high-side replica transistor and the low-side output transistor. The comparator circuit is coupled to the high-side replica transistor and the low-side replica transistor, and is configured to compare a signal received from both the high-side replica transistor and the low-side replica transistor to a ramp signal.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: August 17, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Neil Gibson, Stefan Herzer
  • Publication number: 20210159787
    Abstract: A voltage regulation circuit includes a switching output terminal, a high-side output transistor, a low-side output transistor, a high-side replica transistor, a low-side replica transistor, and a comparator circuit. The high-side output transistor is configured to drive the switching output terminal. The low-side output transistor is configured to drive the switching output terminal. The high-side replica transistor is coupled to the high-side output transistor. The low-side replica transistor is coupled to the high-side replica transistor and the low-side output transistor. The comparator circuit is coupled to the high-side replica transistor and the low-side replica transistor, and is configured to compare a signal received from both the high-side replica transistor and the low-side replica transistor to a ramp signal.
    Type: Application
    Filed: November 25, 2019
    Publication date: May 27, 2021
    Inventors: Neil GIBSON, Stefan HERZER
  • Patent number: 10992229
    Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes a comparator with preamplifier gain adjustment circuitry configured to adjust a preamplifier gain of the comparator based on an overdrive voltage.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: April 27, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Gerhard Thiele, Manuel Wiersch, Antonio Priego, Johann Erich Bayer, Stefan Herzer
  • Publication number: 20210066229
    Abstract: A semiconductor die includes a substrate and an integrated circuit provided on the substrate and having contacts. An electrically conductive layer is provided on the integrated circuit and defines electrically conductive elements electrically connected to the contacts. Electrically conductive interconnects coupled with respective electrically conductive elements. The electrically conductive interconnects have at least one of different sizes or shapes from one another.
    Type: Application
    Filed: November 10, 2020
    Publication date: March 4, 2021
    Inventors: PATRICK FRANCIS THOMPSON, CHRISTOPHER DANIEL MANACK, STEFAN HERZER, RAKSHIT AGRAWAL
  • Publication number: 20210005760
    Abstract: A semiconductor device with an isolation structure and a trench capacitor, each formed using a single resist mask for etching corresponding first and second trenches of different widths and different depths, with dielectric liners formed on the trench sidewalls and polysilicon filling the trenches and deep doped regions surrounding the trenches, including conductive features of a metallization structure that connect the polysilicon of the isolation structure trench to the deep doped region to form an isolation structure.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Inventors: Binghua Hu, Alexei Sadovnikov, Abbas Ali, Yanbiao Pan, Stefan Herzer
  • Patent number: 10833036
    Abstract: A semiconductor die includes a substrate and an integrated circuit provided on the substrate and having contacts. An electrically conductive layer is provided on the integrated circuit and defines electrically conductive elements electrically connected to the contacts. Electrically conductive interconnects coupled with respective electrically conductive elements. The electrically conductive interconnects have at least one of different sizes or shapes from one another.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 10, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Patrick Francis Thompson, Christopher Daniel Manack, Stefan Herzer, Rakshit Agrawal
  • Patent number: 10811543
    Abstract: A semiconductor device with an isolation structure and a trench capacitor, each formed using a single resist mask for etching corresponding first and second trenches of different widths and different depths, with dielectric liners formed on the trench sidewalls and polysilicon filling the trenches and deep doped regions surrounding the trenches, including conductive features of a metallization structure that connect the polysilicon of the isolation structure trench to the deep doped region to form an isolation structure.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: October 20, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Binghua Hu, Alexei Sadovnikov, Abbas Ali, Yanbiao Pan, Stefan Herzer
  • Publication number: 20200212229
    Abstract: A semiconductor device with an isolation structure and a trench capacitor, each formed using a single resist mask for etching corresponding first and second trenches of different widths and different depths, with dielectric liners formed on the trench sidewalls and polysilicon filling the trenches and deep doped regions surrounding the trenches, including conductive features of a metallization structure that connect the polysilicon of the isolation structure trench to the deep doped region to form an isolation structure.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 2, 2020
    Applicant: Texas Instruments Incorporated
    Inventors: Binghua Hu, Alexei Sadovnikov, Abbas Ali, Yanbiao Pan, Stefan Herzer
  • Publication number: 20200211992
    Abstract: A semiconductor die includes a substrate and an integrated circuit provided on the substrate and having contacts. An electrically conductive layer is provided on the integrated circuit and defines electrically conductive elements electrically connected to the contacts. Electrically conductive interconnects coupled with respective electrically conductive elements. The electrically conductive interconnects have at least one of different sizes or shapes from one another.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 2, 2020
    Inventors: PATRICK FRANCIS THOMPSON, CHRISTOPHER DANIEL MANACK, STEFAN HERZER, RAKSHIT AGRAWAL
  • Publication number: 20200127570
    Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes a comparator with preamplifier gain adjustment circuitry configured to adjust a preamplifier gain of the comparator based on an overdrive voltage.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Gerhard THIELE, Manuel WIERSCH, Antonio PRIEGO, Johann Erich BAYER, Stefan HERZER
  • Patent number: 10615693
    Abstract: A system comprises a DC-to-DC voltage converter, the DC-to-DC voltage converter comprising: a high-side FET comprising a gate, a source, and a drain; a node coupled to the source of the high-side FET; a low-side FET comprising a gate, a source, and a drain coupled to the node; and a controller coupled to the gate of the high-side FET to switch on and off the high-side FET, and coupled to the gate of the low-side FET to switch on and off the low-side FET, the controller configured to switch on the low-side FET for a time interval before switching on the high-side FET and to switch off the low-side FET before switching on the high-side FET.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 7, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Syed Wasif Mehdi, Stefan Herzer, Antonio Priego
  • Publication number: 20200007035
    Abstract: A system comprises a DC-to-DC voltage converter, the DC-to-DC voltage converter comprising: a high-side FET comprising a gate, a source, and a drain; a node coupled to the source of the high-side FET; a low-side FET comprising a gate, a source, and a drain coupled to the node; and a controller coupled to the gate of the high-side FET to switch on and off the high-side FET, and coupled to the gate of the low-side FET to switch on and off the low-side FET, the controller configured to switch on the low-side FET for a time interval before switching on the high-side FET and to switch off the low-side FET before switching on the high-side FET.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 2, 2020
    Inventors: Syed Wasif MEHDI, Stefan Herzer, Antonio PRIEGO
  • Publication number: 20190348492
    Abstract: An integrated circuit comprising: a source comprising an output port; a set of serially-connected resistors electrically coupled to the output port of the source; a comparator comprising a first input port, a second input port, and an output port; a set of switches, each switch in the set of switches comprising a first terminal electrically coupled to the first input port of the comparator, and a second terminal electrically coupled to the set of serially-connected resistors; a current source comprising an output port electrically coupled to the second input port of the comparator; and a pin electrically coupled to the output port of the current source.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 14, 2019
    Inventors: Michael Uwe SCHLENKER, Stefan HERZER, Konrad WAGENSOHNER
  • Patent number: 10340803
    Abstract: A DC-to-DC voltage converter includes a converter input for receiving a DC voltage. A first switch is coupled between the input and a first node. A second switch is coupled between the first node and a ground. An inductor is coupled between the first node and a converter output. A capacitor is coupled between the converter output and ground. An output voltage synthesizer is coupled to the converter input and the converter output for synthesizing the voltage at the first node and for generating a control signal for at least one of the first switch and the second switch in response to the voltages at the converter input and the converter output.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 2, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Neil Gibson, Michael Couleur, Antonio Priego, Stefan Herzer, Syed Wasif Mehdi
  • Patent number: 10148177
    Abstract: A multi-phase power converter includes a plurality of power channels arranged in parallel to drive an output of the power converter, and a channel selection circuit. Each of the power channels includes a driver, a feedback control circuit coupled to an output of the driver, and a comparator coupled to the feedback control circuit. The channel selection circuit is coupled to the feedback control circuit of each of the power channels. The channel control circuit is configured to: select a different specific one of the power channels to activate in each of a plurality of phases, and introduce an offset voltage into each of the feedback control circuits, except the feedback control circuit of the specific one of the power channels. The feedback control circuit is configured to apply the offset to bias driver output feedback voltage away from a threshold voltage at which the power channel is activated.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: December 4, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Stefan Herzer, Michael Couleur, Antonio Priego
  • Patent number: 10069416
    Abstract: A controller for a DC-DC converter includes a state machine and a plurality of drivers for controlling switches in the DC-DC converter, where each state in the state machine determines a state of the drivers, and a plurality of timers, where each state in the state machine, other than a passive state, has an associated timer for the state of the drivers.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 4, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Neil Gibson, Antonio Priego, Erich Bayer, Joerg Kirchner, Michael Lueders, Stefan Herzer, Michael Couleur
  • Publication number: 20180183332
    Abstract: A multi-phase power converter includes a plurality of power channels arranged in parallel to drive an output of the power converter, and a channel selection circuit. Each of the power channels includes a driver, a feedback control circuit coupled to an output of the driver, and a comparator coupled to the feedback control circuit. The channel selection circuit is coupled to the feedback control circuit of each of the power channels. The channel control circuit is configured to: select a different specific one of the power channels to activate in each of a plurality of phases, and introduce an offset voltage into each of the feedback control circuits, except the feedback control circuit of the specific one of the power channels. The feedback control circuit is configured to apply the offset to bias driver output feedback voltage away from a threshold voltage at which the power channel is activated.
    Type: Application
    Filed: December 28, 2016
    Publication date: June 28, 2018
    Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
    Inventors: Stefan HERZER, Michael COULEUR, Antonio PRIEGO
  • Publication number: 20180166990
    Abstract: A controller for a DC-DC converter includes a state machine and a plurality of drivers for controlling switches in the DC-DC converter, where each state in the state machine determines a state of the drivers, and a plurality of timers, where each state in the state machine, other than a passive state, has an associated timer for the state of the drivers.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 14, 2018
    Inventors: Neil Gibson, Antonio Priego, Erich Bayer, Joerg Kirchner, Michael Lueders, Stefan Herzer, Michael Couleur