Patents by Inventor Ravi Dixit

Ravi Dixit 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: 11099593
    Abstract: An integrated circuit includes a base current cancellation circuit and a complementary to absolute temperature (CTAT) circuit. The base current cancellation circuit includes a first bipolar junction transistor (BJT) and a current mirror coupled to the first BJT. The current mirror is configured to provide a mirrored current to a base electrode of the first BJT. The CTAT circuit is coupled to receive a voltage signal corresponding to a reference current of the current mirror. The CTAT circuit includes a second BJT coupled to form a base current based on the voltage signal.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: August 24, 2021
    Assignee: NXP USA, INC.
    Inventors: Anil Kumar Gottapu, Sanjay Kumar Wadhwa, Ravi Dixit
  • Patent number: 10496122
    Abstract: An integrated circuit includes an output driver circuit configured to provide a first voltage at an output terminal. The output driver circuit includes a transistor having a first current electrode coupled at a voltage supply terminal and a second current electrode coupled at the output terminal, and a resistor having a first terminal coupled at the output terminal and a second terminal coupled at a first node. An amplifier circuit is coupled to the output driver circuit and is configured to generate a proportional to absolute temperature (PTAT) current in a first circuit branch of the output driver circuit coupled at the first node. A complementary to absolute temperature (CTAT) circuit is configured to generate a CTAT current in a second circuit branch coupled at the first node.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 3, 2019
    Assignee: NXP USA, INC.
    Inventors: Anil Kumar Gottapu, Sanjay Kumar Wadhwa, Ravi Dixit
  • Publication number: 20190146542
    Abstract: An integrated circuit includes a base current cancellation circuit and a complementary to absolute temperature (CTAT) circuit. The base current cancellation circuit includes a first bipolar junction transistor (BJT) and a current mirror coupled to the first BJT. The current mirror is configured to provide a mirrored current to a base electrode of the first BJT. The CTAT circuit is coupled to receive a voltage signal corresponding to a reference current of the current mirror. The CTAT circuit includes a second BJT coupled to form a base current based on the voltage signal.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 16, 2019
    Inventors: ANIL KUMAR GOTTAPU, SANJAY KUMAR WADHWA, RAVI DIXIT
  • Publication number: 20170023958
    Abstract: A voltage regulator includes an error amplifier, a voltage buffer, a transistor, a frequency compensation circuit, a capacitor, and a resistive network. The error amplifier receives a reference signal and a feedback signal, and generates an intermediate control signal. The voltage buffer receives the intermediate control signal and generates a control signal. The transistor has a gate that receives the control signal, a first terminal that receives a supply voltage signal, and a second terminal that generates a regulated output signal. The frequency compensation circuit is connected to the second terminal of the transistor. The capacitor is connected to the error amplifier and the frequency compensation circuit. The resistive network receives the regulated output signal and generates the feedback signal.
    Type: Application
    Filed: July 26, 2015
    Publication date: January 26, 2017
    Inventors: RAVI DIXIT, PARUL K. SHARMA
  • Patent number: 9552004
    Abstract: A voltage regulator includes an error amplifier, a voltage buffer, a transistor, a frequency compensation circuit, a capacitor, and a resistive network. The error amplifier receives a reference signal and a feedback signal, and generates an intermediate control signal. The voltage buffer receives the intermediate control signal and generates a control signal. The transistor has a gate that receives the control signal, a first terminal that receives a supply voltage signal, and a second terminal that generates a regulated output signal. The frequency compensation circuit is connected to the second terminal of the transistor. The capacitor is connected to the error amplifier and the frequency compensation circuit. The resistive network receives the regulated output signal and generates the feedback signal.
    Type: Grant
    Filed: July 26, 2015
    Date of Patent: January 24, 2017
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Ravi Dixit, Parul K. Sharma
  • Patent number: 9483435
    Abstract: A Universal Serial Bus (USB) controller includes a USB transceiver to detect a high-speed (HS) disconnect between the USB controller and a device connected to it. The USB transceiver includes a reference-voltage generation circuit, a HS current driver, first and second comparators, and a multiplexer. The reference-voltage generation circuit generates HS disconnect and transmitter reference-voltage signals that have a constant voltage difference. The first comparator receives DP and DM signals that correspond to a HS Start of Frame (SOF) packet during HS disconnect detection, and generates a control voltage. The multiplexer outputs at least one of the DP and DM signals based on the logic state of the control voltage. The second comparator receives the selected signal and the HS disconnect reference-voltage signal, and outputs a HS disconnect output voltage signal when the selected signal is greater than the HS disconnect reference-voltage signal.
    Type: Grant
    Filed: July 6, 2014
    Date of Patent: November 1, 2016
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Ravi Dixit, Parul K. Sharma
  • Publication number: 20160004661
    Abstract: A Universal Serial Bus (USB) controller includes a USB transceiver to detect a high-speed (HS) disconnect between the USB controller and a device connected to it. The USB transceiver includes a reference-voltage generation circuit, a HS current driver, first and second comparators, and a multiplexer. The reference-voltage generation circuit generates HS disconnect and transmitter reference-voltage signals that have a constant voltage difference. The first comparator receives DP and DM signals that correspond to a HS Start of Frame (SOF) packet during HS disconnect detection, and generates a control voltage. The multiplexer outputs at least one of the DP and DM signals based on the logic state of the control voltage. The second comparator receives the selected signal and the HS disconnect reference-voltage signal, and outputs a HS disconnect output voltage signal when the selected signal is greater than the HS disconnect reference-voltage signal.
    Type: Application
    Filed: July 6, 2014
    Publication date: January 7, 2016
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Ravi Dixit, Parul K. Sharma
  • Patent number: 9065441
    Abstract: A circuit for scaling down first and second input voltages includes first and second voltage scale-down circuits that scale down the first and second input voltages, respectively. The first voltage scale-down circuit includes a transistor that receives the first input voltage at its gate and, operating in a source-follower configuration, scales down the first input voltage to generate a first output voltage at its source. The second voltage scale-down circuit is identical to the first voltage scale-down circuit and generates a second output voltage based on the second input voltage.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: June 23, 2015
    Assignee: FREESCALE SEMICONDUCOTR, INC.
    Inventors: Nidhi Chaudhry, Ravi Dixit, Parul K. Sharma
  • Publication number: 20140217825
    Abstract: A circuit for scaling down first and second input voltages includes first and second voltage scale-down circuits that scale down the first and second input voltages, respectively. The first voltage scale-down circuit includes a transistor that receives the first input voltage at its gate and, operating in a source-follower configuration, scales down the first input voltage to generate a first output voltage at its source. The second voltage scale-down circuit is identical to the first voltage scale-down circuit and generates a second output voltage based on the second input voltage.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Inventors: Nidhi Chaudhry, Ravi Dixit, Parul K. Sharma
  • Publication number: 20070021567
    Abstract: The invention relates to a polyethylene composition with a bimodal molecular weight distribution, methods for making the same, and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 25, 2007
    Applicant: Dow Global Technologies Inc.
    Inventors: Jozef Van Dun, Peter van den Berghe, Patrick Schouterden, Ruddy Nicasy, Johan Vanvoorden, Frederik Gemoets, Kalyan Sehanobish, Noorallah Jivraj, Ravi Dixit