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:
May. 24, 2005
Filed:
Jul. 14, 2003
Adalberto Mariani, Garlasco, IT;
Giulio Corva, Vittuone, IT;
Adalberto Mariani, Garlasco, IT;
Giulio Corva, Vittuone, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A multiphase buck type voltage regulator having at least two phases and including a first switching means that selectively connect a supply voltage to a load through a first current path; a second switching means that selectively connect said supply voltage to said load through a second current path; a first activation circuit that activates said first switching means; a first delay circuit that deactivates said first switching means after a first period of time; a second activation circuit that activates said second switching means; a second delay circuit that after a second period of time deactivates said second switching means; said first period of time depends on said supply voltage and on the output voltage; said second period of time depends on said supply voltage and on a voltage proportional to the difference of current that flows in said first and second current path.