公开(公告)号：US10855104B2

公开(公告)日：2020-12-01

申请号：US15920488

申请日：2018-03-14

Applicant: Cisco Technology, Inc.

Inventor： Dean Nguyen ,  Matt Howard ,  Michael Grant

IPC: H02J9/06 ,  H02J1/02 ,  H02J1/10

Abstract: In one embodiment, a power apparatus, includes at least one first and second power supply to receive power from a main power supply, the at least one first power supply including at least one first input capacitor to smooth voltage ripples, a voltage monitor to monitor voltage provided by the main power supply, and cause enablement and/or disablement of at least one part of the at least one first power supply according to the voltage provided by the main power supply, and at least one first blocking and passing component configured to selectively channel energy from the main power supply to charge the at least one first input capacitor during a time when the at least one part is enabled, and channel energy from the at least one first input capacitor to the at least one second power supply during a time when the at least one part is disabled.