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:
Apr. 11, 2000
Filed:
Apr. 20, 1998
Applicant:
Inventor:
Andrea Milanesi, Casalnoceto, IT;
Assignee:
SGS-Thomson Microelectronics S.r.l., Agrate Brianza, IL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
327512 ; 327513 ;
Abstract
A circuit for the generation of an electrical signal of constant duration comprises a capacitor, a constant current generator for charging the capacitor, and a voltage comparator to compare the voltage present at the terminals of the capacitor with a reference voltage. The voltage comparator supplies at an output a digital signal dependent upon the voltage across the capacitor. The constant current generator comprises a transistor biased with a voltage between gate and source obtained as the difference between the sum of two gate-source voltages of two transistors and a gate-source voltage of another transistor.