US 12,323,042 B2
Modular power supply architecture optimized for flat efficiency across loadings
Xiqun Zhu, Sunnyvale, CA (US); Sung Kee Baek, San Ramon, CA (US); Joel Goergen, Soulsbyville, CA (US); Doug Paul Arduini, San Ramon, CA (US); and Ruqi Li, Fremont, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Jul. 17, 2023, as Appl. No. 18/353,536.
Application 18/353,536 is a continuation of application No. 17/724,985, filed on Apr. 20, 2022, granted, now 11,777,394.
Prior Publication US 2023/0361668 A1, Nov. 9, 2023
Int. Cl. H02M 1/00 (2007.01)
CPC H02M 1/0048 (2021.05) [H02M 1/0043 (2021.05)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining a measure of output power for a power supply, the power supply comprising one or more output modules and an auxiliary power supply;
determining whether a maximum power rating of the auxiliary power supply is sufficient to provide the measure of output power;
responsive to a first determination that the maximum power rating of the auxiliary power supply is sufficient to provide the measure of the output power, directing the auxiliary power supply to provide the output power;
responsive to a second determination that the maximum power rating of the auxiliary power supply is insufficient to provide the measure of output power, directing the one or more output modules to provide the output power; and
maintaining at least 90% efficiency for the power supply when the measure of output power is at least 5% of a maximum output rating of the power supply.