Patents by Inventor Krishna Prasad Sarangapani

Krishna Prasad Sarangapani 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: 7466194
    Abstract: An amplifier is described which includes a first loop including a first amplifier stage having an offset voltage associated therewith. An output stage includes two switching devices in a bridge configuration configured to be coupled between a supply voltage and ground. An output of the bridge configuration is configured to be coupled to a load. The first loop is characterized by a first gain. A decoupling capacitor is configured to be coupled to the load. A second loop which includes the first amplifier stage is configured to charge the decoupling capacitor to a first voltage generated with reference to the offset voltage before operation of the switching devices is enabled. The second loop is characterized by a second gain. The first and second gains are substantially the same such that when operation of the switching devices is enabled a second voltage at the output of the half-bridge configuration is substantially the same as the first voltage.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: December 16, 2008
    Assignee: Cirrus Logic, Inc.
    Inventors: Babak Mazda, Rahul Shinkre, Farzad Sahandiesfanjani, Maziar Sayyedi, Krishna Prasad Sarangapani