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:
Dec. 15, 2015
Filed:
Jul. 16, 2010
Torbjörn Holmberg, Kalmar, SE;
Magnus Karlsson, Oskarshamn, SE;
Torbjörn Holmberg, Kalmar, SE;
Magnus Karlsson, Oskarshamn, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
In an intermediate bus architecture power system, a voltage controller that generates control signals for controlling an intermediate bus voltage (V) output from a first stage DC-to-DC power converter to at least one second stage DC-to-DC power converter via the intermediate voltage bus. A receiver receives values of the current input to the first stage converter, or the current and voltage output by the first stage converter. The controller determines a first value of an efficiency measure using the received values corresponding to a first V, and determines a second value of the efficiency measure for a second Vhigher than the first V. Control signals cause the first stage converter to set the Vto a voltage higher than the second Vif the second efficiency measure value represents a higher system efficiency than the first efficiency measure value, and to a voltage lower than the first Vif the second efficiency measure value represents a lower system efficiency than the first efficiency measure value.