Patents by Inventor Jayasankar Venugopal

Jayasankar Venugopal 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).

  • Power supply for magnetic resonance imaging system
    Patent number: 8305080
    Abstract: In one embodiment, a power supply for a static tap changer transformer is provided. The power supply comprises a rectifier section configured to supply input voltage, a latch circuit section coupled to the rectifier section and a tap changing section comprising three taps for each phase of three phase input power supply. The latch circuit section comprises a zener breakdown circuit with a selected breakdown voltage rating, an operational amplifier configured to activate the latch circuit section when the input voltage is higher than the selected breakdown voltage, a gate control device configured to generate a tap changing signal and thereby control the operation of the latch circuit section and a semi-conductor diode coupled to the gate control device and the operational amplifier, the semiconductor diode configured to provide the tap changing signal to the operational amplifier.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: November 6, 2012
    Assignee: General Electric Company
    Inventors: Sriram VB, Jayasankar Venugopal, Pradeep P, Muralidhara SR, Venkatraman S
  • POWER SUPPLY FOR MAGNETIC RESONANCE IMAGING SYSTEM
    Publication number: 20110241686
    Abstract: In one embodiment, a power supply for a static tap changer transformer is provided. The power supply comprises a rectifier section configured to supply input voltage, a latch circuit section coupled to the rectifier section and a tap changing section comprising three taps for each phase of three phase input power supply. The latch circuit section comprises a zener breakdown circuit with a selected breakdown voltage rating, an operational amplifier configured to activate the latch circuit section when the input voltage is higher than the selected breakdown voltage, a gate control device configured to generate a tap changing signal and thereby control the operation of the latch circuit section and a semi-conductor diode coupled to the gate control device and the operational amplifier, the semiconductor diode configured to provide the tap changing signal to the operational amplifier.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sriram VB, Jayasankar Venugopal, Pradeep P, Muralidhara SR, Venkatraman S