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:
Feb. 28, 2012
Filed:
Mar. 21, 2011
Daniel C. Cohen, Newtonville, MA (US);
David A. Colucci, Lynnfield, MA (US);
James S. Spitaels, Shrewsbury, MA (US);
Mark R. Melanson, Chelmsford, MA (US);
Daniel C. Cohen, Newtonville, MA (US);
David A. Colucci, Lynnfield, MA (US);
James S. Spitaels, Shrewsbury, MA (US);
Mark R. Melanson, Chelmsford, MA (US);
American Power Conversion Corporation, W. Kingston, RI (US);
Abstract
A power supply system includes an AC power line with an uninterruptible power supply (UPS) device coupled to receive power from the AC power line. The UPS includes control circuitry that couples power conversion circuitry of the UPS to the AC power line when the available AC power is acceptable. The power supply system also includes a second UPS device coupled to receive power from the AC power line. The second UPS includes a timer delay, such that the control circuitry is configured to couple power conversion circuitry to the AC power line when the available AC power is acceptable, and upon expiration of the timer.