Patents by Inventor Rex Teggatz

Rex Teggatz 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: 20070241819
    Abstract: The cascoded gain single stage amplifier includes: a common gate differential pair; a first amplifier having a first input coupled to a first leg of the differential pair, and a second input coupled to a second leg of the differential pair; a current mirror coupled to the differential pair; a second amplifier having a first input coupled to a first leg of the current mirror, and a second input coupled to a second leg of the current mirror.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 18, 2007
    Inventors: Luthuli Dake, Rex Teggatz, Amer Atrash
  • Publication number: 20070229151
    Abstract: The voltage matching circuit includes: a first branch including a first transistor; a second branch including a second transistor; and a cascaded level shifter coupled between the first and second branches to match a voltage on the first transistor with a voltage on the second transistor.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 4, 2007
    Inventors: Luthuli Dake, Rex Teggatz, Shanmuganand Chellamuthu
  • Publication number: 20060132108
    Abstract: A programmable voltage regulator configurable for reverse blocking and double power density is disclosed herein. The programmable voltage regulator includes an error amplifier that couples to receive a reference voltage. A first NMOS pass transistor connects between an auxiliary voltage input node and the output terminal of the voltage regulator, wherein the first NMOS pass transistor is biased by the output of the error amplifier. Connected between the source of the first NMOS pass transistor and the second input of the error amplifier, a feedback network provides feedback for the voltage regulator. A second NMOS pass transistor connects between the first power supply and the auxiliary voltage input node. Furthermore, an independent node control circuit biases the second NMOS pass transistor such that in a first mode of operation, a first control signal input is operable to receive a signal for controlling the second NMOS pass transistor during reverse battery condition.
    Type: Application
    Filed: December 20, 2004
    Publication date: June 22, 2006
    Inventors: Ross Teggatz, Sanmukh Patel, Rex Teggatz, Suribhotla Rajasekhar, Valerian Mayega
  • Publication number: 20050117265
    Abstract: System and method for controlling current across a load. A preferred embodiment comprises a current varying circuit (such as current varying circuit 525) that can create a sequence of voltage drops in a driver circuit (such as the driver circuit 505) coupled to an inductive load (such as the inductive load 535). By initially producing a large voltage drop and then stepping the voltage drop down gradually, the current in the inductive load can be rapidly removed without producing a current undershoot, which, in certain applications, can result in unwanted noise and vibration.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 2, 2005
    Inventors: Rex Teggatz, Wayne Tien-Feng Chen, Joseph Devore
  • Patent number: 5821701
    Abstract: A method of improving efficiency in a boost regulator circuit includes the steps of transferring energy stored in a load to an energy storage component and transferring energy back from the energy storage component to the load.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: October 13, 1998
    Inventors: Ross Teggatz, Rex Teggatz