Patents by Inventor John Douglas Field

John Douglas Field 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 input routing
    Patent number: 9125303
    Abstract: One embodiment of a power supply input routing apparatus can include a multilayer printed circuit board configured to accept only an alternating current (AC) line voltage, return and ground signals. The AC power jumper board can advantageously route AC power from one section of the power supply to another without burdening the power supply design with extra layer requirements or negatively increasing power supply area. Embodiments including an electronic device having a power supply as above are also disclosed.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: September 1, 2015
    Assignee: Apple Inc.
    Inventors: Kevin S. Fetterman, Kathleen A. Bergeron, John Douglas Field, Edward H. Frank, Michelle R. Goldberg, Harsha Lakshmanan, Manisha P. Pandya, Bharat K. Patel, Deborah Claire Sharrah, Steve Xing-Fu Zhou
  • POWER SUPPLY INPUT ROUTING
    Publication number: 20130314954
    Abstract: One embodiment of a power supply input routing apparatus can include a multilayer printed circuit board configured to accept only an alternating current (AC) line voltage, return and ground signals. The AC power jumper board can advantageously route AC power from one section of the power supply to another without burdening the power supply design with extra layer requirements or negatively increasing power supply area. Embodiments including an electronic device having a power supply as above are also disclosed.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 28, 2013
    Applicant: Apple Inc.
    Inventors: Kevin S. FETTERMAN, Kathleen A. BERGERON, John Douglas FIELD, Edward H. FRANK, Michelle R. GOLDBERG, Harsha LAKSHMANAN, Manisha P. PANDYA, Bharat K. PATEL, Deborah Claire SHARRAH, Steve Xing-Fu ZHOU
  • Multi-output power supply
    Patent number: 8519564
    Abstract: An apparatus for providing power to an electronic device may include a power input configured to receive an input voltage from a power supply, and a rectifier operatively connected to the power input and configured to convert the input voltage to a first voltage. The rectifier may further be configured to transmit the first voltage to a first power output operatively connected to the rectifier. The apparatus may further include a power converter operatively connected to the rectifier and configured to convert the first voltage to a second voltage different than the first voltage and a first relay operatively connected to the rectifier to selectively prevent the first voltage from being transmitted through the first power output. The power converter may further be configured to transmit the second voltage to a second power output operatively connected to the power converter.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: August 27, 2013
    Assignee: Apple Inc.
    Inventors: Aleksandar Pance, Nicholas Alan Rundle, John Douglas Field
  • MULTI-OUTPUT POWER SUPPLY
    Publication number: 20110278923
    Abstract: An apparatus for providing power to an electronic device may include a power input configured to receive an input voltage from a power supply, and a rectifier operatively connected to the power input and configured to convert the input voltage to a first voltage. The rectifier may further be configured to transmit the first voltage to a first power output operatively connected to the rectifier. The apparatus may further include a power converter operatively connected to the rectifier and configured to convert the first voltage to a second voltage different than the first voltage and a first relay operatively connected to the rectifier to selectively prevent the first voltage from being transmitted through the first power output. The power converter may further be configured to transmit the second voltage to a second power output operatively connected to the power converter.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 17, 2011
    Applicant: Apple Inc.
    Inventors: Aleksandar Pance, Nicholas Alan Rundle, John Douglas Field