Patents by Inventor Gilbert MacDonald

Gilbert MacDonald 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: 20100020582
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 28, 2010
    Applicant: iGO, Inc.
    Inventors: Gilbert MacDonald, Scott Smith
  • Patent number: 7646620
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: January 12, 2010
    Assignee: iGo, Inc.
    Inventors: Gilbert MacDonald, Scott Smith
  • Publication number: 20060007715
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Application
    Filed: August 26, 2005
    Publication date: January 12, 2006
    Inventors: Gilbert MacDonald, Scott Smith
  • Patent number: 6937490
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: August 30, 2005
    Assignee: Mobility Electronics, Inc.
    Inventors: Gilbert MacDonald, Scott Smith
  • Patent number: 6920056
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12,14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of the system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the feedback circuit (26) comprises single feedback loop having stacked photocouplers, one (PH1) controlling the AC-to-DC converter (22) and the other (PH3) controlling the DC-to-DC booster converter (24), to select the overall DC output voltage.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 19, 2005
    Assignee: Mobility Electronics, Inc.
    Inventors: Gilbert MacDonald, Richard Garrison Dubose, Chia hua Wang
  • Publication number: 20040170039
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 2, 2004
    Applicant: MOBILITY ELECTRONICS INC.
    Inventors: Gilbert MacDonald, Scott Smith
  • Patent number: 6751109
    Abstract: A dual input battery assisted power converter (10) which provides a continuous, regulated DC voltage output to a user-connected mobile device, such as, a lap top computer or a cell phone, for example. The power converter (10) comprises a power supply circuit (12) and a separate, detachable power storage circuit comprising a battery pack (14) having a re-chargeable battery (36). The power supply (12) is adapted to deliver a pair of regulated DC output voltages, of opposite voltage potentials, to a pair of respective output terminals. Preferably these output voltages are derived from two external input voltages: an AC input voltage and a DC input voltage. Advantageously, if both of the external input voltages are temporarily removed, the battery pack (14) will advantageously serve as a substitute DC input power source, thereby allowing the power supply (12) to deliver the same regulated DC output voltage to the user-connected mobile device without interruption.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 15, 2004
    Assignee: Mobility Electronics, Inc.
    Inventors: Jeffery S. Doss, Richard Garrison DuBose, Alexei A. Piatetsky, Gilbert MacDonald, Charles Lord, Scott Smith
  • Publication number: 20040100807
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12,14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of the system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the feedback circuit (26) comprises single feedback loop having stacked photocouplers, one (PH1) controlling the AC-to-DC converter (22) and the other (PH3) controlling the DC-to-DC booster converter (24), to select the overall DC output voltage.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 27, 2004
    Applicant: MOBILITY ELECTRONICS INC.
    Inventors: Gilbert MacDonald, Richard Garrison Dubose, Chia Hua Wang
  • Patent number: 6700808
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: March 2, 2004
    Assignee: Mobility Electronics, Inc.
    Inventors: Gilbert MacDonald, Scott Smith
  • Patent number: 6650560
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12,14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of the system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the feedback circuit (26) comprises single feedback loop having stacked photocouplers, one (PH1) controlling the AC-to-DC converter (22) and the other (PH3) controlling the DC-to-DC booster converter (24), to select the overall DC output voltage.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 18, 2003
    Assignee: Mobility Electronics, Inc.
    Inventors: Gilbert MacDonald, Richard Garrison Dubose, Chia hua Wang
  • Publication number: 20030151936
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: Gilbert MacDonald, Scott Smith
  • Publication number: 20030103366
    Abstract: A power converter capable of receiving either an AC input voltage or a DC input voltage and generating a programmable DC output voltage. The converter comprises a first circuit that converts an AC input voltage to a predetermined DC first output voltage, and a second circuit that converts a DC input voltage to a predetermined second DC output voltage. The converter also comprise a third circuit which is adapted to receive the first and second DC voltages from first and second circuits to generate a selectable output DC voltage. In selected embodiments, the first and second DC output voltages provided by the first and second circuits, respectively, are generally the same value and are coupled to a common node that feeds the input terminal of the third circuit. Moreover, the third circuit is adapted to provide a selectable output DC voltage which may be set higher or lower than its DC input voltage.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 5, 2003
    Inventors: Gilbert MacDonald, Charles Lord, Scott Smith, Garry DuBose
  • Publication number: 20030080623
    Abstract: A dual input AC/DC power converter (10) having dual inputs (12,14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of the system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the feedback circuit (26) comprises single feedback loop having stacked photocouplers, one (PH1) controlling the AC-to-DC converter (22) and the other (PH3) controlling the DC-to-DC booster converter (24), to select the overall DC output voltage.
    Type: Application
    Filed: August 22, 2002
    Publication date: May 1, 2003
    Inventors: Gilbert MacDonald, Richard Garrison Dubose, Chia Hua Wang
  • Publication number: 20030081439
    Abstract: A dual input battery assisted power converter (10) which provides a continuous, regulated DC voltage output to a user-connected mobile device, such as, a laptop computer or a cell phone, for example. The power converter (10) comprises a power supply circuit (12) and a separate, detachable power storage circuit comprising a battery pack (14) having a re-chargeable battery (36). The power supply (12) is adapted to deliver a pair of regulated DC output voltages, of opposite voltage potentials, to a pair of respective output terminals. Preferably these output voltages are derived from two external input voltages: an AC input voltage and a DC input voltage. Advantageously, if both of the external input voltages are temporarily removed, the battery pack (14) will advantageously serve as a substitute DC input power source, thereby allowing the power supply (12) to deliver the same regulated DC output voltage to the user-connected mobile device without interruption.
    Type: Application
    Filed: May 31, 2002
    Publication date: May 1, 2003
    Inventors: Jeffery S. Doss, Richard Garrison DuBose, Alexei A. Piatetsky, Gilbert MacDonald, Charles Lord, Scott Smith