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. 12, 2019
Filed:
May. 15, 2014
Valeo Systemes Thermiques, Le Mesnil Saint Denis, FR;
Laurent Tellier, Paris, FR;
Bertrand Puzenat, Montigny-le-Bretonneux, FR;
Valeo Systemes Thermiques, Le Mesnil Saint Denis, FR;
Abstract
A device () for controlling an electrical heating circuit () comprising a number N of heating elements (-) connected in parallel, comprises, according to the invention: N electronic switches (T-T), each able to be connected in series with one of the N heating elements (-); a module () able to receive a power setpoint in the form of a control signal (PWM) with duty ratio varying as a function of power; means () for extracting a mean value (formula (I)) of the control signal (PWM) received; and P comparators (C-C), the integer P being less than or equal to N, which are able to compare the mean value (formula (I)) extracted with P distinct threshold values (Ref-Ref) and to generate P comparison signals (S-S), each comparison signal serving to control a toggling of the electronic switch (T-T) associated with at least one heating element into the open or closed position.