Patents by Inventor Willy Henri Lemmens

Willy Henri Lemmens 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).

  • Publication number: 20180191200
    Abstract: A detection method for use in a primary unit of an inductive power transfer system, the primary unit being operable to transmit power wirelessly by electromagnetic induction to at least one secondary unit of the system located in proximity to the primary unit and/or to a foreign object located in said proximity, the method comprising: driving the primary unit so that in a driven state the magnitude of an electrical drive signal supplied to one or more primary coils of the primary unit changes from a first value to a second value; assessing the effect of such driving on an electrical characteristic of the primary unit; and detecting in dependence upon the assessed effect the presence of a said secondary unit and/or a foreign object located in proximity to said primary unit.
    Type: Application
    Filed: February 23, 2018
    Publication date: July 5, 2018
    Inventors: Jonathan Richard Dibben, Willy Henri Lemmens, David James Hough, Hendrik Cannoodt, John De Clercq
  • Patent number: 9906044
    Abstract: A detection method for use in a primary unit of an inductive power transfer system, the primary unit being operable to transmit power wirelessly by electromagnetic induction to at least one secondary unit of the system located in proximity to the primary unit and/or to a foreign object located in said proximity, the method comprising: driving the primary unit so that in a driven state the magnitude of an electrical drive signal supplied to one or more primary coils of the primary unit changes from a first value to a second value; assessing the effect of such driving on an electrical characteristic of the primary unit; and detecting in dependence upon the assessed effect the presence of a said secondary unit and/or a foreign object located in proximity to said primary unit.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 27, 2018
    Inventors: Jonathan Richard Dibben, Willy Henri Lemmens, David James Hough, Hendrik Cannoodt, John De Clercq
  • Patent number: 9906047
    Abstract: Circuitry for use in a primary unit of an inductive power transfer system to generate an electromagnetic field so as to transfer power wirelessly by electromagnetic induction to one or more secondary units of the system, the or each secondary unit being separable from the primary unit, the circuitry comprising: a plurality of drivable portions, each portion comprising a primary coil or a dummy coil; driving means operable to supply both or at least two of said portions with drive signals so as to cause those driven portions that have a said primary coil to generate said electromagnetic field; and control means operable, in dependence upon a feedback signal indicative of a characteristic of the primary or dummy coil of one or more of the driven portions, to control the circuitry so as to tend to regulate said feedback signal, wherein the circuitry is configured so that; those portions that are driven are connected together in parallel and have a tuned resonant response; and said control tends to regulate such
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: February 27, 2018
    Inventors: Willy Henri Lemmens, David Martin Pooley, John De Clercq
  • Patent number: 9225312
    Abstract: An inductive power transmitter for transmitting electrical power to a device by electromagnetic induction, the transmitter being configured to receive power conductively by way of a current via an electrical conduit from an external power source, the transmitter including a field generator configured to generate a fluctuating electromagnetic field having a fundamental frequency; and at least one impedance element connected along an electrical path of the transmitter configured to carry said current, the impedance element or a combination of the impedance elements having a high enough impedance at the fundamental frequency such that, in use, electromagnetic noise experienced at the power source is substantially suppressed, such noise arising from coupling between the electromagnetic field and a circuit having said path and linking the power source to the transmitter.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: December 29, 2015
    Assignee: Access Business Group International LLC
    Inventor: Willy Henri Lemmens
  • Publication number: 20150054354
    Abstract: Circuitry for use in a primary unit of an inductive power transfer system to generate an electromagnetic field so as to transfer power wirelessly by electromagnetic induction to one or more secondary units of the system, the or each secondary unit being separable from the primary unit, the circuitry comprising: a plurality of drivable portions, each portion comprising a primary coil or a dummy coil; driving means operable to supply both or at least two of said portions with drive signals so as to cause those driven portions that have a said primary coil to generate said electromagnetic field; and control means operable, in dependence upon a feedback signal indicative of a characteristic of the primary or dummy coil of one or more of the driven portions, to control the circuitry so as to tend to regulate said feedback signal, wherein the circuitry is configured so that; those portions that are driven are connected together in parallel and have a tuned resonant response; and said control tends to regulate such
    Type: Application
    Filed: October 9, 2014
    Publication date: February 26, 2015
    Inventors: Willy Henri Lemmens, David Martin Pooley, John De Clercq
  • Publication number: 20150022023
    Abstract: An inductive power transmitter for transmitting electrical power to a device by electromagnetic induction, the transmitter being configured to receive power conductively by way of a current via an electrical conduit from an external power source, the transmitter including a field generator configured to generate a fluctuating electromagnetic field having a fundamental frequency; and at least one impedance element connected along an electrical path of the transmitter configured to carry said current, the impedance element or a combination of the impedance elements having a high enough impedance at the fundamental frequency such that, in use, electromagnetic noise experienced at the power source is substantially suppressed, such noise arising from coupling between the electromagnetic field and a circuit having said path and linking the power source to the transmitter.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 22, 2015
    Inventor: Willy Henri Lemmens
  • Publication number: 20140333146
    Abstract: A detection method for use in a primary unit of an inductive power transfer system, the primary unit being operable to transmit power wirelessly by electromagnetic induction to at least one secondary unit of the system located in proximity to the primary unit and/or to a foreign object located in said proximity, the method comprising: driving the primary unit so that in a driven state the magnitude of an electrical drive signal supplied to one or more primary coils of the primary unit changes from a first value to a second value; assessing the effect of such driving on an electrical characteristic of the primary unit; and detecting in dependence upon the assessed effect the presence of a said secondary unit and/or a foreign object located in proximity to said primary unit.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 13, 2014
    Applicant: Access Business Group International LLC
    Inventors: Jonathan Richard Dibben, Willy Henri Lemmens, David James Hough, Hendrik Cannoodt, John De Clercq
  • Patent number: 8884468
    Abstract: Circuitry for use in a primary unit of an inductive power transfer system to generate an electromagnetic field so as to transfer power wirelessly by electromagnetic induction to one or more secondary units of the system, the or each secondary unit being separable from the primary unit, the circuitry comprising: a plurality of drivable portions, each portion comprising a primary coil or a dummy coil; driving means operable to supply both or at least two of said portions with drive signals so as to cause those driven portions that have a said primary coil to generate said electromagnetic field; and control means operable, in dependence upon a feedback signal indicative of a characteristic of the primary or dummy coil of one or more of the driven portions, to control the circuitry so as to tend to regulate said feedback signal, wherein the circuitry is configured so that; those portions that are driven are connected together in parallel and have a tuned resonant response; and said control tends to regulate such
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 11, 2014
    Assignee: Access Business Group International LLC
    Inventors: Willy Henri Lemmens, David Martin Pooley, John De Clercq
  • Patent number: 8884469
    Abstract: Circuitry for use in a primary unit of an inductive power transfer system to generate an electromagnetic field so as to transfer power wirelessly by electromagnetic induction to one or more secondary units of the system, the or each secondary unit being separable from the primary unit, the circuitry comprising: a plurality of drivable portions, each portion comprising a primary coil or a dummy coil; driving means operable to supply both or at least two of said portions with drive signals so as to cause those driven portions that have a said primary coil to generate said electromagnetic field; and control means operable, in dependence upon a feedback signal indicative of a characteristic of the primary or dummy coil of one or more of the driven portions, to control the circuitry so as to tend to regulate said feedback signal, wherein the circuitry is configured so that; those portions that are driven are connected together in parallel and have a tuned resonant response; and said control tends to regulate such
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: November 11, 2014
    Assignee: Access Business Group International LLC
    Inventors: Willy Henri Lemmens, David Martin Poley, John De Clercq
  • Patent number: 8878392
    Abstract: An inductive power transmitter for transmitting electrical power to a device by electromagnetic induction, the transmitter being configured to receive power conductively by way of a current via an electrical conduit from an external power source, the transmitter including a field generator configured to generate a fluctuating electromagnetic field having a fundamental frequency; and at least one impedance element connected along an electrical path of the transmitter configured to carry said current, the impedance element or a combination of the impedance elements having a high enough impedance at the fundamental frequency such that, in use, electromagnetic noise experienced at the power source is substantially suppressed, such noise arising from coupling between the electromagnetic field and a circuit having said path and linking the power source to the transmitter.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: November 4, 2014
    Assignee: Access Business Group International LLC
    Inventor: Willy Henri Lemmens
  • Patent number: 8766487
    Abstract: A detection method for use in a primary unit of an inductive power transfer system, the primary unit being operable to transmit power wirelessly by electromagnetic induction to at least one secondary unit of the system located in proximity to the primary unit and/or to a foreign object located in said proximity, the method comprising: driving the primary unit so that in a driven state the magnitude of an electrical drive signal supplied to one or more primary coils of the primary unit changes from a first value to a second value; assessing the effect of such driving on an electrical characteristic of the primary unit; and detecting in dependence upon the assessed effect the presence of a said secondary unit and/or a foreign object located in proximity to said primary unit.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: July 1, 2014
    Assignee: Access Business Group International LLC
    Inventors: Jonathan Richard Dibben, Willy Henri Lemmens, David James Hough, Hendrik Cannoodt, John De Clercq
  • Publication number: 20120175967
    Abstract: A detection method for use in a primary unit of an inductive power transfer system, the primary unit being operable to transmit power wirelessly by electromagnetic induction to at least one secondary unit of the system located in proximity to the primary unit and/or to a foreign object located in said proximity, the method comprising: driving the primary unit so that in a driven state the magnitude of an electrical drive signal supplied to one or more primary coils of the primary unit changes from a first value to a second value; assessing the effect of such driving on an electrical characteristic of the primary unit; and detecting in dependence upon the assessed effect the presence of a said secondary unit and/or a foreign object located in proximity to said primary unit.
    Type: Application
    Filed: December 18, 2008
    Publication date: July 12, 2012
    Applicant: ACCESS BUSINESS GROUP INTERNATIONAL LLC
    Inventors: Jonathan Richard Dibben, Willy Henri Lemmens, David James Hough, Hendrik Cannoodt, John De Clercq
  • Publication number: 20110291491
    Abstract: Circuitry for use in a primary unit of an inductive power transfer system to generate an electromagnetic field so as to transfer power wirelessly by electromagnetic induction to one or more secondary units of the system, the or each secondary unit being separable from the primary unit, the circuitry comprising: a plurality of drivable portions, each portion comprising a primary coil or a dummy coil; driving means operable to supply both or at least two of said portions with drive signals so as to cause those driven portions that have a said primary coil to generate said electromagnetic field; and control means operable, in dependence upon a feedback signal indicative of a characteristic of the primary or dummy coil of one or more of the driven portions, to control the circuitry so as to tend to regulate said feedback signal, wherein the circuitry is configured so that; those portions that are driven are connected together in parallel and have a tuned resonant response; and said control tends to regulate such
    Type: Application
    Filed: August 15, 2011
    Publication date: December 1, 2011
    Applicant: ACCESS BUSINESS GROUP INTERNATIONAL LLC
    Inventors: Willy Henri Lemmens, David Martin Poley, John De Clercq
  • Publication number: 20110285210
    Abstract: Circuitry for use in a primary unit of an inductive power transfer system to generate an electromagnetic field so as to transfer power wirelessly by electromagnetic induction to one or more secondary units of the system, the or each secondary unit being separable from the primary unit, the circuitry comprising: a plurality of drivable portions, each portion comprising a primary coil or a dummy coil; driving means operable to supply both or at least two of said portions with drive signals so as to cause those driven portions that have a said primary coil to generate said electromagnetic field; and control means operable, in dependence upon a feedback signal indicative of a characteristic of the primary or dummy coil of one or more of the driven portions, to control the circuitry so as to tend to regulate said feedback signal, wherein the circuitry is configured so that; those portions that are driven are connected together in parallel and have a tuned resonant response; and said control tends to regulate such
    Type: Application
    Filed: December 18, 2008
    Publication date: November 24, 2011
    Applicant: ACCESS BUSINESS GROUP INTERNATIONAL LLC
    Inventors: Willy Henri Lemmens, David Martin Pooley, John De Clercq
  • Publication number: 20100109444
    Abstract: An inductive power transmitter for transmitting electrical power to a device by electromagnetic induction, the transmitter being configured to receive power conductively by way of a current via an electrical conduit from an external power source, the transmitter including a field generator configured to generate a fluctuating electromagnetic field having a fundamental frequency; and at least one impedance element connected along an electrical path of the transmitter configured to carry said current, the impedance element or a combination of the impedance elements having a high enough impedance at the fundamental frequency such that, in use, electromagnetic noise experienced at the power source is substantially suppressed, such noise arising from coupling between the electromagnetic field and a circuit having said path and linking the power source to the transmitter.
    Type: Application
    Filed: September 17, 2009
    Publication date: May 6, 2010
    Applicant: ACCESS BUSINESS GROUP INTERNATIONAL LLC
    Inventor: Willy Henri Lemmens