Patents by Inventor Lars Hehn

Lars Hehn 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: 7626427
    Abstract: A voltage comparator for comparing a reference voltage with a threshold, includes a first voltage-to-current converter to convert a reference voltage that determines the threshold into a reference current that depends on the reference voltage, a second voltage-to-current converter to convert the comparison voltage into a comparison current that depends on the comparison voltage, and an output stage to output a digital output level, wherein the digital output level depends on the reference current and the comparison current.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: December 1, 2009
    Assignee: Atmel Automotive GmbH
    Inventors: Berthold Gruber, Lars Hehn
  • Patent number: 7619252
    Abstract: An integrated circuit having a first connection, a second connection, a substrate, and a control connection, in provided. The control connection controls a conductivity of the integrated circuit between the first connection and the second connection.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: November 17, 2009
    Assignee: Atmel Automotive GmbH
    Inventors: Berthold Gruber, Lars Hehn
  • Patent number: 7130175
    Abstract: At least one or more terminals of an integrated circuit, such as a low- or high-side driver stage, are protected against transient or over-voltages by two pairs of diodes. A first pair of diodes includes a regular diode (D1 or D1?) and a Zener-diode (ZD1 or ZD1?). A second pair of diodes also includes a regular diode (D2 or D3) and a Zener-diode (ZD2 or ZD3). These diode pairs are looped into the respective circuit and cooperate with an n-channel MOSFET or a p-channel MOSFET to provide the required over-voltage protection, particularly for transmitter/receiver circuits and databus systems especially in motor vehicles.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: October 31, 2006
    Assignee: ATMEL Germany GmbH
    Inventors: Franz Dietz, Lars Hehn, Manfred Klaussner, Anton Koch
  • Patent number: 7075464
    Abstract: A circuit for current measurement and current monitoring in a motor vehicle is provided, with a measuring circuit with a first subtractor circuit, connected to a measuring resistor; an offset circuit, which is connected to the first subtractor circuit in such a way that a first output voltage of the first subtractor circuit is increased by an offset voltage; a second subtractor circuit, which is connected to the offset circuit and the first subtractor circuit in such a way that a second output voltage of the second subtractor circuit is substantially independent of the offset voltage, and a comparator circuit with at least one switching threshold, which is connected to the second subtractor circuit for comparison of the second output voltage with the at least one switching threshold.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: July 11, 2006
    Assignee: Atmel Germany GmbH
    Inventor: Lars Hehn
  • Publication number: 20060028248
    Abstract: A voltage comparator for comparing a reference voltage with a threshold, includes a first voltage-to-current converter to convert a reference voltage that determines the threshold into a reference current that depends on the reference voltage, a second voltage-to-current converter to convert the comparison voltage into a comparison current that depends on the comparison voltage, and an output stage to output a digital output level, wherein the digital output level depends on the reference current and the comparison current.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 9, 2006
    Inventors: Berthold Gruber, Lars Hehn
  • Publication number: 20060028263
    Abstract: An integrated circuit having a first connection, a second connection, a substrate, and a control connection, in provided. The control connection controls a conductivity of the integrated circuit between the first connection and the second connection.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 9, 2006
    Inventors: Berthold Gruber, Lars Hehn
  • Publication number: 20050270198
    Abstract: A circuit for current measurement and current monitoring in a motor vehicle is provided, with a measuring circuit with a first subtractor circuit, connected to a measuring resistor; an offset circuit, which is connected to the first subtractor circuit in such a way that a first output voltage of the first subtractor circuit is increased by an offset voltage; a second subtractor circuit, which is connected to the offset circuit and the first subtractor circuit in such a way that a second output voltage of the second subtractor circuit is substantially independent of the offset voltage, and a comparator circuit with at least one switching threshold, which is connected to the second subtractor circuit for comparison of the second output voltage with the at least one switching threshold.
    Type: Application
    Filed: May 26, 2005
    Publication date: December 8, 2005
    Applicant: ATMEL GERMANY GMBH
    Inventor: Lars Hehn
  • Publication number: 20050024801
    Abstract: At least one or more terminals of an integrated circuit, such as a low- or high-side driver stage, are protected against transient or over-voltages by two pairs of diodes. A first pair of diodes includes a regular diode (D1 or D1?) and a Zener-diode (ZD1 or ZD1?). A second pair of diodes also includes a regular diode (D2 or D3) and a Zener-diode (ZD2 or ZD3). These diode pairs are looped into the respective circuit and cooperate with an n-channel MOSFET or a p-channel MOSFET to provide the required over-voltage protection, particularly for transmitter/receiver circuits and databus systems especially in motor vehicles.
    Type: Application
    Filed: July 27, 2004
    Publication date: February 3, 2005
    Applicant: ATMEL Germany GmbH
    Inventors: Franz Dietz, Lars Hehn, Manfred Klaussner, Anton Koch