Patents by Inventor Harald Lindemann

Harald Lindemann 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).

  • Method for effecting the power-optimal control of BLDC motors
    Patent number: 7315142
    Abstract: A method for a power optimal control of a BLDC motor by continuously updated commutation points and circuit assembly for a power optimal control of a BLDC motor. The method includes measuring a time difference (?T) between two immediately subsequent zero crossings (TN1, TN2) of first and second motor phases, and performing a commutation of an immediately next motor phase after substantially one-half of the time difference (?T/2) elapses after the zero crossing of the second motor phase (TN2). The commutation is performed for all phases in a continuous manner in accordance with a switching algorithm (Tcommutation=TN2+(?T/2)).
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: January 1, 2008
    Assignee: Melexis GmbH
    Inventors: Harald Lindemann, Joergen Sturm
  • Method for effecting the power-optimal control of bldc motors
    Publication number: 20060279242
    Abstract: A method for a power optimal control of a BLDC motor by continuously updated commutation points and circuit assembly for a power optimal control of a BLDC motor. The method includes measuring a time difference (?T) between two immediately subsequent zero crossings (TN1, TN2) of first and second motor phases, and performing a commutation of an immediately next motor phase after substantially one-half of the time difference (?T/2) elapses after the zero crossing of the second motor phase (TN2). The commutation is performed for all phases in a continuous manner in accordance with a switching algorithm (Tcommutation=TN2+(?T/2)).
    Type: Application
    Filed: February 24, 2004
    Publication date: December 14, 2006
    Inventors: Harald Lindemann, Joergen Sturm