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:
Jun. 05, 2012
Filed:
Mar. 23, 2011
Salvatore Tumminaro, Marianopoli, IT;
Salvatore Giombanco, Cassaro, IT;
Alfio Pasqua, Piedimonte Etneo, IT;
Claudio Adragna, Monza, IT;
Salvatore Tumminaro, Marianopoli, IT;
Salvatore Giombanco, Cassaro, IT;
Alfio Pasqua, Piedimonte Etneo, IT;
Claudio Adragna, Monza, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
An embodiment of a power-supply controller comprises a switching-control circuit, an error amplifier, and a signal generator. The switching-control circuit is operable to control a switch coupled to a primary winding of a transformer, and the error amplifier has a first input node operable to receive a feedback signal, a second input node operable to receive a comparison signal, and an output node operable to provide a control signal to the switching-control circuit. The signal generator is operable to generate either the feedback signal or the comparison signal in response to a compensation signal that is isolated from a secondary winding of the transformer and that is proportional to a load current through a conductor disposed between the secondary winding and a load.