Patents by Inventor Christopher Ben Bartholomeusz

Christopher Ben Bartholomeusz 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).

  • Method and circuit for sensing MOSFET temperature for load switch application
    Patent number: 11774296
    Abstract: A method and device for temperature monitoring of a power transistor formed in a semiconductor die comprising are disclosed. A side of a temperature-sensing resistor disposed in the semiconductor die is coupled to a voltage input side of the power transistor. A controller coupled to a second side of the temperature-sensing resistor is configured to detect a voltage across the resistor and trigger a temperature related corrective action using the detected voltage.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: October 3, 2023
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Zhenyu Wang, Jian Yin, Lingpeng Guan, Sitthipong Angkititrakul, Christopher Ben Bartholomeusz, Xiaobin Wang
  • METHOD AND CIRCUIT FOR SENSING MOSFET TEMPERATURE FOR LOAD SWITCH APPLICATION
    Publication number: 20230147081
    Abstract: A method and device for temperature monitoring of a power transistor formed in a semiconductor die comprising are disclosed. A side of a temperature-sensing resistor disposed in the semiconductor die is coupled to a voltage input side of the power transistor. A controller coupled to a second side of the temperature-sensing resistor is configured to detect a voltage across the resistor and trigger a temperature related corrective action using the detected voltage.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 11, 2023
    Inventors: Zhenyu Wang, Jian Yin, Lingpeng Guan, Sitthipong Angkititrakul, Christopher Ben Bartholomeusz, Xiaobin Wang
  • Circuit having sample and hold feedback control and method
    Patent number: 8248114
    Abstract: A drive circuit and a method for maintaining an operating state of the drive circuit. The drive circuit includes a capacitor connected to an inverting input terminal of an operational amplifier and to a terminal of a current sensitive load through a switch. The output of the operational amplifier is connected to a switching regulator which has an output terminal connected to another terminal of the current sensitive load. An energy storage element is connected to the inverting input terminal of the operational amplifier. Energy is stored in the energy storage element during a first portion of a PWM pulse which is used during a second portion of the PWM pulse to generate the error signal. A drive signal is generated from the error signal where the drive signal is used to generate a voltage that biases the current source during the second portion of the PWM pulse.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 21, 2012
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Anthony Gerard Russell, Christopher Ben Bartholomeusz
  • CIRCUIT HAVING SAMPLE AND HOLD FEEDBACK CONTROL AND METHOD
    Publication number: 20110084734
    Abstract: A drive circuit and a method for maintaining an operating state of the drive circuit. The drive circuit includes a capacitor connected to an inverting input terminal of an operational amplifier and to a terminal of a current sensitive load through a switch. The output of the operational amplifier is connected to a switching regulator which has an output terminal connected to another terminal of the current sensitive load. An energy storage element is connected to the inverting input terminal of the operational amplifier. Energy is stored in the energy storage element during a first portion of a PWM pulse which is used during a second portion of the PWM pulse to generate the error signal. A drive signal is generated from the error signal where the drive signal is used to generate a voltage that biases the current source during the second portion of the PWM pulse.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 14, 2011
    Inventors: Anthony Gerard Russell, Christopher Ben Bartholomeusz