Patents by Inventor Josef Drobnik

Josef Drobnik 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: 9692239
    Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a lower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: June 27, 2017
    Assignee: NXP USA, INC.
    Inventors: Josef Drobnik, Beatrice Bernoux
  • Publication number: 20160218526
    Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a lower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Inventors: Josef DROBNIK, Beatrice BERNOUX
  • Patent number: 9337670
    Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a tower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: May 10, 2016
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Josef Drobnik, Beatrice Bernoux
  • Patent number: 9225191
    Abstract: A battery equalization circuit is provided, comprising: a positive battery node connected to a positive terminal of a monitored battery cell contained in a battery circuit that includes a plurality of other battery cells connected in series with the monitored battery cell; a negative battery node connected to a negative terminal of the monitored battery cell; a secondary transformer coil configured to receive a square wave, the secondary transformer coil having an upper transformer node and a lower transformer node; an upper switch connected between the positive battery node and the upper transformer node; a lower switch connected between the negative battery node and the lower transformer control node; and a control circuit configured to control operation of the upper and lower switches based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: December 29, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventor: Josef Drobnik
  • Patent number: 9214864
    Abstract: A switch mode power supply has a first and second branch of an inductive element; a first switching element and a second switching element connected in series. Both branches are coupled to a power source in parallel. A controller controls said switching elements for operating said switch mode power supply in a plurality of consecutive time periods, wherein more than two of said switching elements are closed, i.e. at least one in each branch. The power supply has a polarity switching element coupled between said branches for receiving a pulsed voltage for providing an output voltage of a switchable polarity. The controller receives a feedback signal corresponding to the output voltage, compares the feedback signal to a reference waveform, and controls said switching elements and the polarity switching element in dependence of said comparing for generating the output voltage according to the reference waveform.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: December 15, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Beatrice Bernoux, Josef Drobnik
  • Publication number: 20150061612
    Abstract: A switch mode power supply has a first and second branch of an inductive element; a first switching element and a second switching element connected in series. Both branches are coupled to a power source in parallel. A controller controls said switching elements for operating said switch mode power supply in a plurality of consecutive time periods, wherein more than two of said switching elements are closed, i.e. at least one in each branch. The power supply has a polarity switching element coupled between said branches for receiving a pulsed voltage for providing an output voltage of a switchable polarity. The controller receives a feedback signal corresponding to the output voltage, compares the feedback signal to a reference waveform, and controls said switching elements and the polarity switching element in dependence of said comparing for generating the output voltage according to the reference waveform.
    Type: Application
    Filed: April 26, 2012
    Publication date: March 5, 2015
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Beatrice Bernoux, Josef Drobnik
  • Publication number: 20140232344
    Abstract: A battery equalization circuit is provided, comprising: a positive battery node connected to a positive terminal of a monitored battery cell contained in a battery circuit that includes a plurality of other battery cells connected in series with the monitored battery cell; a negative battery node connected to a negative terminal of the monitored battery cell; a secondary transformer coil configured to receive a square wave, the secondary transformer coil having an upper transformer node and a lower transformer node; an upper switch connected between the positive battery node and the upper transformer node; a lower switch connected between the negative battery node and the lower transformer control node; and a control circuit configured to control operation of the upper and lower switches based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventor: Josef DROBNIK
  • Publication number: 20140232347
    Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a tower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Josef DROBNIK, Beatrice BERNOUX
  • Publication number: 20060049814
    Abstract: In one aspect, a switch mode power supply comprises a first inductive element; a first switching element, wherein a first end of the first switching element is connected to a second end of the first inductive element; a second inductive element; a second switching element, wherein a first end of the second switching element is connected to a second end of the second inductive element; and wherein a first power source terminal is connected to a first end of the first inductive element and a first end of the second inductive element, and a second power source terminal is connected to a second end of the first switching element and a second end of the second switching element, and wherein a load is connected to the first end of the first switching element and the first end of the second switching element.
    Type: Application
    Filed: January 11, 2005
    Publication date: March 9, 2006
    Inventor: Josef Drobnik
  • Patent number: 6310792
    Abstract: A component module includes a processor and at least a portion of a voltage regulator module which regulates voltages being supplied to said processor.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: October 30, 2001
    Assignee: Intel Corporation
    Inventor: Josef Drobnik