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:
Mar. 18, 2008
Filed:
Jan. 13, 2006
John A. Billingsley, Austin, TX (US);
Erin L. Taylor, Pflugerville, TX (US);
John A. Billingsley, Austin, TX (US);
Erin L. Taylor, Pflugerville, TX (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
Regulating a direct current-to-direct current (DC-DC) converter, a semiconductor switch having an improved current sensing technique is used to switch a DC voltage input at a predefined frequency. The switch includes a control pin to receive a control signal for controlling a current flowing between an input pin and an output pin. The switch also includes a Kelvin sense pin electrically coupled to an output pad located on a semiconductor die of the device for sensing the current. An electrical path from the output pad to the output pin in the form of a conductive lead wire has a predefined resistance. The current is Kelvin current sensed using the predefined resistance to tightly control deviation in the current beyond a predefined range.