Patent ID: 11945384
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  F | IPC B  F  H

Claim 0:
1. A backup power supply system comprising
a first auxiliary power supply and a second auxiliary power supply configured to supply electric power to a load when failure of a main power supply occurs, wherein:
a second duration until the second auxiliary power supply becomes capable of supplying electric power to the load is shorter than a first duration until the first auxiliary power supply becomes capable of supplying electric power to the load,
the first duration is a duration until the first auxiliary power supply becomes capable of supplying electric power to the load since the first auxiliary power supply starts to be charged, and
the second duration is a duration until the second auxiliary power supply becomes capable of supplying electric power to the load since the second auxiliary power supply starts to be charged.