Patent ID: 6788036
Filing Date: 2004-09-07
Classification: H02J

Abstract:
A power module comprises:a power regulator providing an output signal on a corresponding output terminal; a bus interface adapted to communicate with a current share bus; and a feedback loop adapted to sense a current level of said output power signal and provide a feedback signal to said power regulator in response thereto, said feedback signal thereby controlling said power regulator to regulate said output signal, said feedback loop comprising a converter adapted to provide a first signal having a pulse width corresponding to said sensed current level, said feedback loop further comprising an error controller adapted to detect a phase difference between said first signal and a second signal received from said bus interface from said current share bus; wherein, said feedback loop imparts said first signal onto said current share bus if said first signal has a pulse width greater than corresponding first signals of other power modules communicating with said current share bus, whereupon said first signal becomes said second signal.