Patents by Inventor Neeraj Keskar

Neeraj Keskar 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: 11569726
    Abstract: A hybrid gate driver circuit includes a field effect transistor (FET) drive terminal, a switching node terminal, a transistor, and a capacitor. The transistor includes a first terminal coupled to the FET drive terminal, and a second terminal coupled to ground. The capacitor includes a first terminal coupled to the switching node terminal, and a second terminal coupled to a third terminal of the transistor.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 31, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Neeraj A. Keskar
  • Publication number: 20210359674
    Abstract: A hybrid gate driver circuit includes a field effect transistor (FET) drive terminal, a switching node terminal, a transistor, and a capacitor. The transistor includes a first terminal coupled to the FET drive terminal, and a second terminal coupled to ground. The capacitor includes a first terminal coupled to the switching node terminal, and a second terminal coupled to a third terminal of the transistor.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 18, 2021
    Inventor: Neeraj A. KESKAR
  • Publication number: 20200195121
    Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for a dynamically adjustable gate driver for switching devices. An example power switching system includes a gate driver circuit including gate driver segments to adjust a transition time of a switch from a first time to a second time in response to a segment control signal, the transition time corresponding to a time to change a state of the switch, and a controller to obtain a first trip signal to indicate that a voltage exceeds a first threshold, obtain a second trip signal to indicate that the voltage is less than a second threshold, and transmit the segment control signal to the gate driver circuit when the switch is to change state and when the voltage exceeds the first threshold or is less than the second threshold.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Inventors: Neeraj A. Keskar, Weidong Zhu
  • Patent number: 9348345
    Abstract: Analog pulse width modulation (PWM) control circuits and techniques are presented for improving output voltage load transient response in controlling DC to DC conversion systems in which a transient detector circuit restarts a PWM carrier ramp waveform to initiate asynchronous injection of a pulse between the regular periodic PWM pulses in a fixed frequency pulse stream to mitigate the effect of output inductor energy depletion on output voltage.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: May 24, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Brian Thomas Lynch, Neeraj Keskar
  • Publication number: 20140070784
    Abstract: Analog pulse width modulation (PWM) control circuits and techniques are presented for improving output voltage load transient response in controlling DC to DC conversion systems in which a transient detector circuit restarts a PWM carrier ramp waveform to initiate asynchronous injection of a pulse between the regular periodic PWM pulses in a fixed frequency pulse stream to mitigate the effect of output inductor energy depletion on output voltage.
    Type: Application
    Filed: July 22, 2013
    Publication date: March 13, 2014
    Applicant: Texas Instruments Incorporated
    Inventors: Brian Thomas Lynch, Neeraj Keskar
  • Publication number: 20040227476
    Abstract: An inverter power module for driving an electric motor comprising a plurality of motor drive power switches having at least one output for driving the motor, a driver integrated circuit for driving the plurality of motor drive power switches, the plurality of switches comprising at least two power switches arranged in a half bridge configuration adapted to be connected between rails of a supply bus, with a common connection between the switches serving as an output for driving the motor, the switches comprising a high side switch and a low side switch, the low side switch being connected to an external terminal of the module adapted to be connected through a sensing element to the lower potential supply bus rail, whereby a motor current can be monitored at the external connection.
    Type: Application
    Filed: December 16, 2003
    Publication date: November 18, 2004
    Applicant: International Rectifier Corp.
    Inventors: Alberto Guerra, Neeraj Keskar