Patents by Inventor Johann Erich BAYER

Johann Erich BAYER 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).

  • Patent number: 11218076
    Abstract: A switching converter circuit includes a hysteretic comparator with a reference voltage (VREF) node and a feedback node. The switching converter circuit also includes a switchable error amplifier circuit coupled to the feedback node of the hysteretic comparator. The switchable error amplifier circuit includes an error amplifier that is coupled to the feedback node during a power-save mode and that is decoupled from the feedback node during a deep power-save mode initiated in response to a duration of the power-save mode being greater than a time threshold.
    Type: Grant
    Filed: August 31, 2019
    Date of Patent: January 4, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Antonio Priego, Johann Erich Bayer, Gerhard Thiele
  • 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: 20210091667
    Abstract: A controller includes a comparator having an inverting input coupled to a voltage converter output, a non-inverting input coupled to a voltage source, and an output. The controller includes a timer having a start input coupled to the converter that indicates that current through a converter inductor is less than a threshold; a stop input coupled to the comparator output; and an output having a digital value corresponding to the time between receiving asserted signals at start input and at stop input. The controller includes a time comparator having a first input coupled to the timer output and a second input to receive a time value. The time comparator asserts one of its outputs based on the digital and time values. The controller includes an accumulator coupled to the time comparator outputs, the accumulator configured to maintain, increase, or decrease an output value based on the asserted time comparator output.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 25, 2021
    Inventors: Johann Erich BAYER, RĂ¼diger GANZ, Ivan SHUMKOV
  • Publication number: 20210091670
    Abstract: A system has an input and an output. The system includes a voltage converter, including first transistor coupled to the input and to a first switching node, second transistor coupled to the first switching node and to ground, third transistor coupled to a second switching node and to the output, fourth transistor coupled to the second switching node and to ground, and an inductor having a first terminal coupled to the first switching node and a second terminal coupled to the second switching node. The system also includes a controller coupled to the voltage converter, the controller including a state machine and a plurality of drivers to control the transistors of the voltage converter. The state machine is adaptable to cause the second and fourth transistors to conduct and the first and third transistors not to conduct, in response to current through the inductor being less than a current threshold.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 25, 2021
    Inventors: Johann Erich BAYER, RĂ¼diger GANZ, Ivan SHUMKOV
  • 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
  • Publication number: 20200127569
    Abstract: A switching converter circuit includes a hysteretic comparator with a reference voltage (VREF) node and a feedback node. The switching converter circuit also includes a switchable error amplifier circuit coupled to the feedback node of the hysteretic comparator. The switchable error amplifier circuit includes an error amplifier that is coupled to the feedback node during a power-save mode and that is decoupled from the feedback node during a deep power-save mode initiated in response to a duration of the power-save mode being greater than a time threshold.
    Type: Application
    Filed: August 31, 2019
    Publication date: April 23, 2020
    Inventors: Antonio PRIEGO, Johann Erich BAYER, Gerhard THIELE
  • Publication number: 20200106357
    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: 1) a main comparator; 2) a bias current source coupled to the main comparator and configured to provide a bias current to the main comparator; and 3) a dynamic biasing circuit coupled to the main comparator and configured to add a supplemental bias current to the bias current in 100% mode of the buck converter. The supplemental bias current varies depending on an input voltage (VIN) and an output voltage (VOUT) of the buck converter.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 2, 2020
    Inventors: Manuel WIERSCH, Gerhard THIELE, Antonio PRIEGO, Johann Erich BAYER
  • Publication number: 20200106360
    Abstract: A switching converter circuit includes a voltage regulation loop configured to provide an output voltage (VOUT) based on an input voltage (VIN). The switching converter circuit also includes a 100% mode circuitry coupled to the voltage regulation loop, wherein the 100% mode circuitry is configured to apply an offset to VOUT in response to detecting that VIN is approaching VOUT.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Antonio PRIEGO, Gerhard THIELE, Manuel WIERSCH, Johann Erich BAYER