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. 25, 2001
Filed:
Oct. 12, 2000
Earl Goodrich, II, Lansing, MI (US);
Sprint Communications Company, L.P., Kansas City, MO (US);
Abstract
The present invention discloses a power distribution system for circuit boards connected to a backplane in a customer premises telecommunications hub. Each functional board in the system contains its own DC to DC converter for receiving a first DC supply voltage from the backplane and supplying a lower voltage to the circuits on the board. The converter is of the single ended primary inductance converter type having its inductance element positioned between the power switching device and the input power capacitor. The power converter is connected to the main power supply through two pins of a staged or staggered connector on the board. A resistor is connected between the earlier of the two pins to make contact with the main supply. Due to the small size of the input resistor required for the converter, the input capacitor can almost fully charge before the second pin, which connects directly to the converter input, makes contact.