International Business Machines Corporation
Operating a redundant power supply regulator using a transition control signal

Abstract:

Operating a redundant power supply regulator using a transition control signal including supplying an operating voltage through an ORing in the redundant power supply regulator, wherein the ORing is connected to a comparator configured to turn off the ORing in response to detecting a fault; receiving the transition control signal indicating that the redundant power supply regulator is transitioning to a reduced voltage, wherein the reduced voltage is less than the operating voltage; receiving the reduced voltage by the ORing; and supplying the reduced voltage through the ORing by using the transition control signal to prevent the comparator from turning off the ORing.