Patents by Inventor Prashutosh GUPTA

Prashutosh GUPTA 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: 20200183439
    Abstract: A voltage regulator includes an error amplifier producing an error voltage from a reference voltage and a feedback voltage. A voltage-to-current converter converts the error voltage to an output current, and a feedback resistance generates the feedback voltage from the output current. The error amplifier includes a differential pair of transistors receiving the feedback voltage and the reference voltage, a first pair of transistors operating in saturation and coupled to the differential pair of transistors at an output node and a bias node, a second pair of transistors operating in a linear region and coupled to the first pair of transistors at a pair of intermediate nodes. A compensation capacitor is coupled to one of the pair of intermediate nodes so as to compensate the error amplifier for a parasitic capacitance. An output at the output node is a function of a difference between the reference voltage and feedback voltage.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 11, 2020
    Applicant: STMicroelectronics International N.V.
    Inventors: Ankit GUPTA, Nitin GUPTA, Prashutosh GUPTA
  • Publication number: 20200125126
    Abstract: An amplifier circuit generates a control signal as a function of a difference between a reference signal and a feedback signal. The control signal is filtered by a low pass filter circuit to generate a filtered control signal. The control signal is applied to the control terminal of a first ballast transistor which sources current to an output node. The filtered control signal is applied to the control terminal of a second ballast transistor which also sources current to the output node. In response to the sourced currents, an output voltage is generated at the output node. A feedback circuit coupled to the output node generates the feedback signal.
    Type: Application
    Filed: October 14, 2019
    Publication date: April 23, 2020
    Applicant: STMicroelectronics International N.V.
    Inventors: Nitin GUPTA, Prashutosh GUPTA