Patents by Inventor Lasse Harju

Lasse Harju 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: 10530256
    Abstract: Power converters and method with reverse charge capability are presented. A power converter operates either in a buck mode for transferring electrical power from a first terminal of the power converter to a second terminal of the power converter, or in a boost mode for transferring electrical power from the second terminal of the power converter to the first terminal of the power converter. The power converter has several switching elements, a flying capacitor, an inductor, and a control unit. The switching elements couple the first terminal of the power converter and the flying capacitor, couple the first terminal of the flying capacitor and a first terminal of the inductor, couple the first terminal of the inductor and a second terminal of the flying capacitor and couple the second terminal of the flying capacitor and a reference potential. The control unit controls the switching elements.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 7, 2020
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Karthik Jayaraman, Lasse Harju
  • Patent number: 10461555
    Abstract: A wired connection, such as USB-C, for charging a sink from a source, has a configuration channel and a power transmission channel. The presence of data on the configuration channel is used to determine that a cable has been disconnected from the power source. This charging system contains a capacitive power converter and a controller for controlling the capacitive power converter. There is also a configuration channel detector, which is arranged to detect the status of the configuration channel and to provide this status to the controller, so that the system can determine that the source has been detached from the bus when no configuration channel data is present.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: October 29, 2019
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Sabin Eftimie, Lasse Harju, Manfred Kogler, Amit Bavisi, Sorin Negru
  • Publication number: 20180337541
    Abstract: A wired connection, such as USB-C, for charging a sink from a source, has a configuration channel and a power transmission channel. The presence of data on the configuration channel is used to determine that a cable has been disconnected from the power source. This charging system contains a capacitive power converter and a controller for controlling the capacitive power converter. There is also a configuration channel detector, which is arranged to detect the status of the configuration channel and to provide this status to the controller, so that the system can determine that the source has been detached from the bus when no configuration channel data is present.
    Type: Application
    Filed: May 18, 2017
    Publication date: November 22, 2018
    Inventors: Sabin Eftimie, Lasse Harju, Manfred Kogler, Amit Bavisi, Sorin Negru
  • Publication number: 20180254648
    Abstract: A system for charging a battery of an electronic device is presented. The system uses a power adaptor, with USB interfaces in the electronic device and in the power adaptor. The electronic device includes a charging control unit coupled with the first USB interface and the battery. The charging control unit receives an analog charging parameter of the charging system and forwards this parameter to an analog data port of the first USB interface. The charging control unit is controlled by a control signal received from the power adaptor. The power adaptor comprises a power converter to convert a mains voltage to a USB supply voltage to be provided to the electronic device via a power supply port of the first and the second USB interface. The power adaptor also includes a controller to control the power converter to allow charging of the battery using the USB supply voltage.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 6, 2018
    Inventor: Lasse Harju
  • Patent number: 9705559
    Abstract: A method of monitoring a process of powering a portable device through a cable connected between a power supply and a portable device is presented. The method includes applying a time-dependent current variation to one end of the cable in accordance with a spreading sequence, detecting a time-dependent voltage variation at the one end of the cable, the time dependent voltage variation resulting from the applying of the time-dependent current variation, and determining a quantity indicative of an impedance of the cable assembly based on the time-dependent voltage variation and the spreading sequence. Further, an apparatus for monitoring a process of powering a portable device through a cable connected between a power supply and a portable device is presented.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 11, 2017
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Andrey Malinin, Lasse Harju, Wessel Lubberhuizen
  • Publication number: 20160134381
    Abstract: A method of monitoring a process of powering a portable device through a cable connected between a power supply and said portable device is proposed, the method comprising applying a time-dependent current variation to one end of the cable in accordance with a spreading sequence, detecting a time-dependent voltage variation at the one end of the cable, the time dependent voltage variation resulting from said applying of the time-dependent current variation, and determining a quantity indicative of an impedance of the cable assembly based on the time-dependent voltage variation and the spreading sequence. Further, an apparatus for monitoring a process of powering a portable device through a cable connected between a power supply and said portable device is proposed.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 12, 2016
    Inventors: Andrey Malinin, Lasse Harju, Wessel Lubberhuizen