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:
Nov. 02, 2004
Filed:
Apr. 22, 2003
Filipe Ganivet, Venelles, FR;
Francesco La Rosa, Rousset, FR;
Thierry Giovinazzi, Aix en Provence, FR;
STMicroelectronics SA, Montrouge, FR;
Abstract
A comparator compares a first voltage applied to a first input to a second voltage applied to a second input. The comparator delivers an output signal having a first value when the second voltage is higher than the first voltage, and having a second value when the second voltage is lower than the first voltage. The comparator includes first and second PMOS transistors arranged as current mirrors. The first PMOS transistor has its source connected to the first input of the comparator for receiving the first voltage. The second PMOS transistor has its source connected to the second input of the comparator for receiving the second voltage. The output of the comparator is connected to the drain of one of the transistors.