Patents by Inventor Heinrich Steinhart

Heinrich Steinhart 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).

  • Driver circuit and driving method
    Patent number: 9041335
    Abstract: A driver circuit for driving an electrical load includes an input terminal pole connecting the driver circuit to an AC voltage source, an output terminal pole connecting the driver circuit to the load, a rectifier circuit connected to the input terminal pole for converting an AC voltage into a pulsating DC voltage, and a control element connected to the rectifier circuit and to the output terminal pole. The control element has a switch and a controller, the controller switching the switch on and off by means of a pulse train signal, wherein an electrical output value of the driver circuit is adjustable by switching the switch. The controller is configured to vary at least one time-based value of the pulse train signal within one period of the pulsating DC voltage such that a driver current is adjusted at the output terminal pole having a defined waveform within the period.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: May 26, 2015
    Assignee: C. & E. FEIN GMBH
    Inventors: Martin Beichter, Mark Heilig, Ulf Rinckleb, Heinrich Steinhart
  • Driver Circuit And Driving Method
    Publication number: 20130249462
    Abstract: A driver circuit for driving an electrical load includes an input terminal pole connecting the driver circuit to an AC voltage source, an output terminal pole connecting the driver circuit to the load, a rectifier circuit connected to the input terminal pole for converting an AC voltage into a pulsating DC voltage, and a control element connected to the rectifier circuit and to the output terminal pole. The control element has a switch and a controller, the controller switching the switch on and off by means of a pulse train signal, wherein an electrical output value of the driver circuit is adjustable by switching the switch. The controller is configured to vary at least one time-based value of the pulse train signal within one period of the pulsating DC voltage such that a driver current is adjusted at the output terminal pole having a defined waveform within the period.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Inventors: Martin Beichter, Mark Heilig, Ulf Rinckleb, Heinrich Steinhart
  • Method for controlling a drive train of a vehicle having two power-shift clutches
    Patent number: 6490944
    Abstract: In a method for controlling a drive line of a vehicle, in which a power-shift clutch is engaged for torque transmission while driving, the point of engagement of a power-shift clutch that is disengaged in parallel is determined by a nonsteady-state engagement operation.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: December 10, 2002
    Assignee: DaimlerChrysler AG
    Inventors: Markus Heinzel, Heinrich Steinhart