Patents by Inventor Herman Johannes Effing

Herman Johannes Effing 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).

  • Precise current measurement with chopping technique for high power driver
    Patent number: 9733276
    Abstract: A system for measuring high power currents, including: a low power transistor that is a scaled replica of a high power transistor of a high power driver; a regulator connected to the low power transistor, wherein the regulator is configured to regulate the current flowing through the low power transistor based upon a voltage sensed across the high power transistor and a chop signal; a current mirror with an input connected to the regulator and an output; a current detector having in input configured to receive the chop signal, wherein the current detector is connected to the output of the current mirror and wherein the current detector is configured to measure the current at the output of the current mirror to produce an estimate of the current flowing through the high power transistor.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: August 15, 2017
    Assignee: NXP B.V.
    Inventors: Davide Maschera, Herman Johannes Effing
  • Precise Current Measurement With Chopping Technique for High Power Driver
    Publication number: 20170153278
    Abstract: A system for measuring high power currents, including: a low power transistor that is a scaled replica of a high power transistor of a high power driver; a regulator connected to the low power transistor, wherein the regulator is configured to regulate the current flowing through the low power transistor based upon a voltage sensed across the high power transistor and a chop signal; a current mirror with an input connected to the regulator and an output; a current detector having in input configured to receive the chop signal, wherein the current detector is connected to the output of the current mirror and wherein the current detector is configured to measure the current at the output of the current mirror to produce an estimate of the current flowing through the high power transistor.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 1, 2017
    Inventors: Davide Maschera, Herman Johannes Effing