Patents by Inventor Siddharth Sundar

Siddharth Sundar 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).

  • Suppression of transients in communications across an isolation barrier
    Patent number: 9257836
    Abstract: Common mode transient immunity for an isolation system is improved by using a common transient suppression circuit coupled to a receive circuit to suppress transients in signals received by the receive circuit that were transmitted from a transmit side of the isolation barrier using optical, magnetic, inductive, or other mechanisms.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: February 9, 2016
    Assignee: Silicon Laboratories Inc.
    Inventors: Michael J. Mills, Timothy J. Dupuis, Riad Wahby, Siddharth Sundar, Jeffrey L. Sonntag
  • Isolated serializer-deserializer
    Patent number: 9118392
    Abstract: A first integrated circuit die receives input data from a plurality of input channels and combines the input data from the plurality of input channels into combined data. The first integrated circuit die transmits the combined data across an isolation communication channel. A second integrated circuit die that is coupled to the isolation communication channel decodes the transmitted combined data and supplies the decoded transmitted combined data to respective output channels corresponding to the input channels.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 25, 2015
    Assignee: Silicon Laboratories Inc.
    Inventors: Siddharth Sundar, Michael J. Mills, Hua Zhu, Riad Wahby, Jeffrey L. Sonntag, Yunteng Huang, Anantha Nag Nemmani
  • SUPPRESSION OF TRANSIENTS IN COMMUNICATIONS ACROSS AN ISOLATION BARRIER
    Publication number: 20150180228
    Abstract: Common mode transient immunity for an isolation system is improved by using a common transient suppression circuit coupled to a receive circuit to suppress transients in signals received by the receive circuit that were transmitted from a transmit side of the isolation barrier using optical, magnetic, inductive, or other mechanisms.
    Type: Application
    Filed: December 30, 2013
    Publication date: June 25, 2015
    Inventors: Michael J. Mills, Timothy J. Dupuis, Riad Wahby, Siddharth Sundar, Jeffrey L. Sonntag
  • Isolated Serializer-Deserializer
    Publication number: 20140307759
    Abstract: A first integrated circuit die receives input data from a plurality of input channels and combines the input data from the plurality of input channels into combined data. The first integrated circuit die transmits the combined data across an isolation communication channel. A second integrated circuit die that is coupled to the isolation communication channel decodes the transmitted combined data and supplies the decoded transmitted combined data to respective output channels corresponding to the input channels.
    Type: Application
    Filed: September 30, 2013
    Publication date: October 16, 2014
    Applicant: Silicon Laboratories Inc.
    Inventors: Siddharth Sundar, Michael J. Mills, Hua Zhu, Riad Wahby, Jeffrey L. Sonntag, Yunteng Huang, Anantha Nag Nemmani
  • Power supply with digital control loop
    Patent number: 7688119
    Abstract: One embodiment of an apparatus for switching a transistor includes a first current mirror providing iB=K1i1, as a transistor base current, wherein the first current mirror is selectively driven by a current source i B ? ? MAX K 1 . A second current mirror providing a feedback signal i2=K2iD to the first current mirror such that i 1 + i 2 = i B ? ? MAX K 1 , wherein iD contributes to the transistor collector current, wherein iB=iBMAX?K1K2iD.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: March 30, 2010
    Assignee: Silicon Laboratories, Inc.
    Inventors: Geoffrey Thompson, Siddharth Sundar, Douglas R. Frey, Russell J. Apfel, Marius Goldenberg, Ion C. Tesu, Riad Wahby, Michael J. Mills
  • Power Supply with Digital Control Loop
    Publication number: 20090243572
    Abstract: A switching regulator apparatus includes an inductor coupling an input node to a switching node. A first capacitor couples the switching node to a diode node. A first diode couples the diode node to a common node. A second diode couples the diode node to an output node. A second capacitor couples the output node to the common node. A switch couples the switching node to the common node, wherein the first capacitor transfers energy from the input node to the output node in accordance with the commutation of the switch.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 1, 2009
    Inventors: Michael J. Mills, Riad Wahby, Geoffrey Thompson, Douglas R. Frey, Zhimin Li, Siddharth Sundar, Ion C. Tesu
  • Power Supply with Digital Control Loop
    Publication number: 20090243701
    Abstract: One embodiment of an apparatus for switching a transistor includes a first current mirror providing iB=K1i1, as a transistor base current, wherein the first current mirror is selectively driven by a current source i B ? ? MAX K 1 . A second current mirror providing a feedback signal i2=K2iD to the first current mirror such that i 1 + i 2 = i B ? ? MAX K 1 , wherein iD contributes to the transistor collector current, wherein iB=iBMAX?K1K2iD.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 1, 2009
    Inventors: Geoffrey Thompson, Siddharth Sundar, Douglas R. Frey, Russell J. Apfel, Marius Goldenberg, Ion C. Tesu, Riad Wahby, Michael J. Mills