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:
May. 01, 2001
Filed:
Apr. 19, 2000
Arthur Descombes, Kerzers, CH;
EM Microelectronic-Marin SA, Marin, CH;
Abstract
The invention concerns a temperature level detection circuit including means (B,, B,, B,) for generating diode voltages (V,to V,) and calculating means including capacitive elements (,) and switching means (SW,to SW,) arranged to connect selectively and sequentially, during first and second phases, the capacitive elements (,) to the means generating said diode voltages (V,to V,). During the second phase, the calculating means generating a temperature signal representative of the temperature level being greater than or less than a determined temperature threshold (T,) defined as the temperature value for which the equation &agr;,(V,−V,)+&agr;,(V,+&agr;,(V,−V,)) becomes zero, where &agr;,, &agr;,, and &agr;,are first, second and third proportionality coefficients determined by the values of the capacitive elements.