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:
Oct. 12, 2004
Filed:
May. 29, 2002
Daniel E. Jenkins, Bastrop, TX (US);
Brent A. McDonald, Round Rock, TX (US);
Dell Products, L.P., Round Rock, TX (US);
Abstract
A circuit for suppressing transients in a voltage regulator due to a load step transient in the demand of the load. The circuit includes a suppressor element that is placed in the current path of the inductor of the switching regulator in response to a determination of an over voltage condition. The suppressor element pulls the voltage level of one side of the inductor below a particular potential, such as, e.g., system ground. Examples of suppressor elements that may be used include zener diodes, diodes, capacitors, resistors, and negative voltage sources. When the current through the inductor has subsided to a particular level, the suppressor element may be removed from the inductor current path, wherein the energy stored in a bulk filter capacitor may be drained through the inductor to the system ground. The suppressor circuit may be used in a information handling system or other type of electronic system.