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. 08, 1996
Filed:
May. 09, 1994
Domenico Rossi, Cilavegna, IT;
Masayuki Tateoka, Saitamaken, JP;
SGS Thomson Microelectronics S.r.l., Agrate-Brianza, IT;
Abstract
A hysteresis comparator circuit working with a low voltage supply and of a type which includes a composite structure incorporating first and second differential cells respectively comprised of an npn bipolar transistor pair with common emitters, on the one side, and a pair of pnp bipolar transistor pair with common emitters, on the other, such cells being coupled together through the bases of the respective transistors. The circuit includes at least one pair of variable current sources associated with each cell and tied operatively to the voltage value present on the comparator output; in addition, a voltage divider is connected between each interconnection of the bases of the transistors forming the cells.