The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 2000
Filed:
Nov. 24, 1998
Applicant:
Inventor:
Hengchun Mao, Plano, TX (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363127 ; 363 17 ; 363 37 ;
Abstract
A backup power supply for use with a power plant having a primary power supply that provides primary power to an AC bus for subsequent conversion to DC power and a method of providing backup power to the AC bus. In one embodiment, the system includes a battery charger/inverter, coupled to the AC bus and couplable to a battery, that operates in a normal mode to convert a portion of the primary power to charge the battery and operates in a battery backup mode to convert DC power from the battery to provide the backup power to the AC bus.