Patents by Inventor Dave Kroekenstoel

Dave Kroekenstoel 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).

  • Power supply circuit using DC/DC converter
    Patent number: 9819276
    Abstract: A power supply circuit comprises an input for receiving a power supply from a battery and a DC/DC converter for supplying a converted voltage to a load. A regulator is used for controlling the DC/DC converter such that the current drawn from the converter is smoothed. A charge storage device at the output of the DC/DC converter enables delivery of a non-constant current to the load.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 14, 2017
    Assignee: NXP B.V.
    Inventors: Dave Kroekenstoel, Steven Thoen
  • POWER SUPPLY CIRCUIT USING DC/DC CONVERTER
    Publication number: 20140043864
    Abstract: A power supply circuit comprises an input for receiving a power supply from a battery and a DC/DC converter for supplying a converted voltage to a load. A regulator is used for controlling the DC/DC converter such that the current drawn from the converter is smoothed. A charge storage device at the output of the DC/DC converter enables delivery of a non-constant current to the load.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 13, 2014
    Applicant: NXP B.V.
    Inventors: Dave KROEKENSTOEL, Steven THOEN
  • Transmitter with adjustable transmit level for magnetic link
    Patent number: 8401470
    Abstract: A device, e.g., a hearing aid, has an electronic circuit for wireless communication of a digital signal. The circuit has a driver driving an RLC tank. The driver has a plurality of inverters whose outputs are coupled to a node of the coil via a respective one of multiple capacitors in the tank. The circuit has a controller that selectively drives one or more of the inverters with the digital signal and connects the inputs of the other inverters to a supply voltage or ground. The tank has a further plurality of series arrangements of a further capacitor and a high-voltage switch connected between the node and ground. The controller is configured for controlling the high-voltage switches.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: March 19, 2013
    Assignee: NXP B.V.
    Inventors: Dave Kroekenstoel, Harry Neuteboom
  • TRANSMITTER WITH ADJUSTABLE TRANSMIT LEVEL FOR MAGNETIC LINK
    Publication number: 20100188170
    Abstract: A device, e.g., a hearing aid, has an electronic circuit for wireless communication of a digital signal. The circuit has a driver driving an RLC tank. The driver has a plurality of inverters whose outputs are coupled to a node of the coil via a respective one of multiple capacitors in the tank. The circuit has a controller that selectively drives one or more of the inverters with the digital signal and connects the inputs of the other inverters to a supply voltage or ground. The tank has a further plurality of series arrangements of a further capacitor and a high-voltage switch connected between the node and ground. The controller is configured for controlling the high-voltage switches.
    Type: Application
    Filed: May 8, 2008
    Publication date: July 29, 2010
    Applicant: NXP B.V.
    Inventors: Dave Kroekenstoel, Harry Neuteboom