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:
Oct. 06, 1998
Filed:
May. 10, 1996
Applicant:
Inventor:
Sergio Palara, Acitrezza, IT;
Assignee:
SGS-Thomson Microelectronis, S.r.l., Agrate Brianza, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
307 106 ; 327584 ; 327583 ; 307 101 ; 123637 ;
Abstract
An overvoltage limiting circuit having first and second terminals to produce a temperature-stable voltage proportional to an overvoltage condition. The overvoltage limiting circuit includes a first transistor having a first terminal connected to the first terminal of the circuit, a second terminal kept at a reference voltage relative to the second terminal of the circuit, and a control terminal coupled with the second terminal of the circuit through equivalent resistor means whose value depends on the value of the temperature-stable voltage so that the first transistor has a temperature-stable breakdown voltage.