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:
Apr. 23, 2019
Filed:
Jun. 25, 2015
Soraa, Inc., Freemont, CA (US);
Laszlo Takacs, Fremont, CA (US);
SORAA, INC., Fremont, CA (US);
Abstract
A driver for generating an output voltage to power an LED having a minimum operating voltage V, comprising: (a) a first voltage converting stage comprising an input terminal and an output terminal; (b) a charge storage device electrically connected to the output terminal and having a charge output voltage V; (c) at least one second voltage converting stage having an input electrically connected to the charge storage device, the second voltage converting stage being configured to increase said Vto at least V; and (d) at least one mode controller to switch between at least a first mode and a second mode, in the first mode, the first voltage converting stage charges the charge storage device to power the LED without substantial contribution from the second voltage converting stage, and, in the second mode, the second voltage converting stage power to the LED.