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. 15, 2018
Filed:
Sep. 29, 2017
Easii Ic, Grenoble, FR;
David Gras, Echirolles, FR;
Thomas Peysson, La Buisse, FR;
EASII IC, Grenoble, FR;
Abstract
An optoelectronic circuit intended to receive a variable voltage containing an alternation of rising and falling phases. The optoelectronic circuit includes assemblies of series-assembled light-emitting diodes, a node coupled to each assembly by a conduction circuit having its electric conductance varying according to a control signal and a control circuit coupled to each conduction circuit and capable of supplying each control signal based on the comparison of a first voltage at said node with at least a second voltage. The control circuit includes a difference amplifier and as many output stages as there are conduction circuits, the control circuit being capable of controlling the first voltage with the second voltage offset by a third voltage, different for each output stage.