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:
Aug. 31, 2010
Filed:
May. 26, 2005
Pasi Salmi, Kemi, FI;
Juha Pennanen, Oulu, FI;
Pasi Salmi, Kemi, FI;
Juha Pennanen, Oulu, FI;
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A system and method is disclosed for rapidly increasing a rising slew rate of an adjustable power supply signal in an adaptive voltage scaling system. When a central processing unit of an adaptive voltage scaling system requests an increase in a performance level, a closed loop control mode of the adaptive voltage scaling system is disabled. Then a value of voltage that corresponds to the requested increased performance level is provided as a voltage change command to an adaptive voltage scaling regulator. The adaptive voltage scaling system is then operated at a maximum slew rate that can be achieved by the adaptive voltage scaling regulator. The closed loop mode is enabled after the adjustable power supply voltage reaches the requested voltage value.