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:
Jan. 02, 2018
Filed:
Feb. 29, 2016
Dell Products L.p., Round Rock, TX (US);
Kejiu Zhang, Round Rock, TX (US);
Shiguo Luo, Austin, TX (US);
Dell Products LP, Round Rock, TX (US);
Abstract
Disclosed herein are embodiments of an improved switching regulator and a method for controlling a switching regulator, for example, to meet stringent transient demand and high efficiency requirements over wide operating range without impacting system stability. According to one embodiment, the switching regulator may be a voltage regulator comprising a plurality of voltage regulator phases, each phase comprising a power stage operable to produce an output voltage for a transient load, and a driver stage coupled for driving the power stage based on a modulated input signal supplied to the driver stage. A variable inductor is included within the power stages in order to meet stringent transient demand and high efficiency requirements over a range of load conditions and operating set points. A power controller is coupled for controlling the modulated input signals supplied to the driver stages to compensate for changing output filter characteristics when the inductance of the variable inductors changes with changes in the load current.