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, 2021
Filed:
Jan. 15, 2019
Signify Holding B.v., Eindhoven, NL;
Priya Ranjan Mishra, Eindhoven, NL;
Matthias Wendt, Eindhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
The present invention relates to a functional device () powered by a constant current driver (). The device () comprises constant current driver (), electrical energy storage unit (), functional unit (), and control unit (). The device () is controlled by the control unit () such that the constant current driver () provides a constant current to the functional unit () and the storage unit () in dependence of a pulse width modulated voltage signal. Current is provided to the storage unit () for charging the storage unit () during at least part of off periods of the pulse width modulated voltage signal. During on periods of the pulse width modulated voltage signal, current is provided to the functional unit () and no current is provided to the storage unit (). This allows providing the device with a constant current driver with less idle periods and lower current supply.