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:
Dec. 01, 2009
Filed:
May. 15, 2008
Pietro Antonio Paolo Calö, Laterza, IT;
Philippe Sirito-olivier, Carro Par Martigues, FR;
Mario Chiricosta, Messina, IT;
Pietro Antonio Paolo Calö, Laterza, IT;
Philippe Sirito-Olivier, Carro Par Martigues, FR;
Mario Chiricosta, Messina, IT;
STMicroelectronics SA, Montrouge, FR;
STMicroelectronics S.R.L., Agrate Brianza (MI), IT;
Abstract
An overdrive control system includes a voltage controlled current source to deliver a compensation current, and being between a first voltage reference and an internal node, which is connected to an output terminal. The voltage controlled current source has a control terminal connected to an output terminal of an adding block, which has a positive input connected to an input terminal. At least one clamping block is between the output terminal and a second voltage reference, and is connected to a negative input of the adding block. The voltage controlled current source delivers its compensation current to the output terminal when a voltage signal on the input terminal has an higher value than a voltage signal on the output terminal, and forces an output voltage signal to follow an input voltage signal to an extent that depends on a clamping voltage provided by the clamping block.