Patents Assigned to Ower-One Limited
  • Patent number: 6788036
    Abstract: A method and apparatus for sharing current among a plurality of power modules is provided. The method includes sensing of a characteristic of an output power signal of at least one of the plurality of power modules and providing a first signal having a pulse width corresponding to the sensed characteristic. The first signal is imparted onto a current share bus coupled to each of the plurality of power modules if the first signal has a pulse width greater than corresponding first signals of other power modules coupled to the current share bus, whereupon one of the first signals from the plurality of power modules having greatest pulse width is imparted onto the current share bus as a second signal. A phase difference between the first signal and the second signal is detected and a feedback signal is provided to the at least one power module in response to the detected phase difference. The feedback signal thereby controls the at least one power module to regulate the output power signal.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: September 7, 2004
    Assignee: Ower-One Limited
    Inventors: Johann Ferdinand Milavec, Alain Chapuis