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:
Oct. 03, 2017
Filed:
Sep. 23, 2014
Ledvance Llc, Wilmington, MA (US);
Victor M. Simi, Lexington, KY (US);
LEDVANCE LLC, Wilmington, MA (US);
Abstract
Systems and methods to generate drive current in a power supply, independent of the input voltage, are provided. The power supply includes front end circuitry, control circuitry, and drive circuitry. The front end circuitry includes protection circuitry to defend against damage from EMI, voltage spikes, and the like. The control circuitry includes startup circuitry, power factor correction (PFC) circuitry, and output power configuration circuitry. The startup circuitry provides operational voltage to the PFC circuitry, derived from an input voltage, until an internally generated operational voltage becomes available. The PFC circuitry uses the operational voltage to generate output power for the drive circuitry based on the output power configuration circuitry. The drive circuitry includes drive current configuration circuitry to generate a drive current to drive a load, coupled to the power supply, independent of the input voltage.