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. 29, 1999
Filed:
Oct. 30, 1996
Giorgio Chiozzi, Cinisello Balsamo, IT;
STMicroelectronics, S.r.l., Agrate Brianza, IT;
Abstract
A sensor of instantaneous power which is dissipated through a power transistor of the MOS type connected between the output terminal of a power stage and ground. It comprises a MOS transistor having its gate terminal connected to that of the power transistor, source terminal connected to ground, and drain terminal connected to a circuit node which is coupled to the output terminal by means of a current mirror circuit which includes a resistive element in its input leg. Connected to the circuit node is the base terminal of a bipolar transistor which is respectively connected, through a diode and a constant current generator between the output terminal and ground.