Patents Assigned to Power Concepts NZ Limited
  • Patent number: 8779716
    Abstract: The present invention relates to a multi output inverter that is adapted to supply mains powered appliances 47-49 and/or poly-phase motors 50, 51.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: July 15, 2014
    Assignee: Power Concepts NZ Limited
    Inventor: Christopher William Fotherby
  • Patent number: 8526206
    Abstract: The present invention relates to a DC to AC inverter comprising a plurality of voltage controlled switching devices, where one or more of the voltage controlled switching devices is driven by a drive circuit comprising: a bridge switching circuit (59), a transformer (28) with a primary winding (29) and a secondary-winding (30), a transition selection circuit (60) coupled to a control terminal of a respective voltage controlled switching device (40) of the inverter, at least one inductance (37) that forms at least one resonant circuit with the input capacitance (41) of the control terminal, wherein the bridge switching circuit (59) can be operated to generate drive pulses via the selection circuit (60) to operate the respective voltage controlled switching device (40).
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 3, 2013
    Assignee: Power Concepts NZ Limited
    Inventor: Christopher William Fotherby
  • Patent number: 8456128
    Abstract: The present invention relates to a multi output inverter that is adapted to supply mains powered appliances (47-49) and/or poly-phase motors (50, 51). The inverter is also adapted to reduce ripple current.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: June 4, 2013
    Assignee: Power Concepts NZ Limited
    Inventor: Christopher William Fotherby
  • Patent number: 8351216
    Abstract: The present invention relates to a layered structure assembly (1) for a DC to AC inverter comprising: a first layered structure (10) with first (12) and second (13) conductive layers, a second layered structure (14) with third (16) and fourth (17) conductive layers, and at least one connector (21) providing a low resistance/inductance interconnection between layered structures (10, 14), the connecter (21) comprising a rod (23) inside a sleeve (26).
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: January 8, 2013
    Assignee: Power Concepts NZ Limited
    Inventor: Christopher William Fotherby