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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.:

US 11711875 B1

PDFFull Text
Date of Patent:
Jul. 25, 2023

Filed:

Apr. 25, 2022

Load control device for a light-emitting diode light source

Applicant:

Lutron Technology Company Llc, Coopersburg, PA (US);

Inventors:

Venkatesh Chitta, Center Valley, PA (US);

Jeffrey S. Hayes, Allentown, PA (US);

Robert D. Stevens, Jr., Emmaus, PA (US);

Assignee:

Lutron Technology Company LLC, Coopersburg, PA (US);

Attorneys:

Michael Czarnecki

Glen Farbanish

Philip Smith

Primary Examiner:

Wei (Victor) Y Chan

Int. Cl.
CPC ...
H05B 45/38 (2020.01); H02M 3/335 (2006.01); H05B 45/10 (2020.01); H05B 45/50 (2022.01); H05B 45/395 (2020.01); H05B 45/327 (2020.01); H05B 45/345 (2020.01); H05B 45/385 (2020.01); H05B 45/39 (2020.01); H05B 45/37 (2020.01); H05B 44/00 (2022.01); H02M 1/08 (2006.01); H05B 45/3725 (2020.01); H05B 45/375 (2020.01); H02M 1/00 (2006.01); H02M 3/00 (2006.01);
U.S. Cl.
CPC ...
H05B 45/38 (2020.01); H02M 1/08 (2013.01); H02M 3/33507 (2013.01); H02M 3/33569 (2013.01); H02M 3/33571 (2021.05); H05B 44/00 (2022.01); H05B 45/10 (2020.01); H05B 45/327 (2020.01); H05B 45/345 (2020.01); H05B 45/37 (2020.01); H05B 45/385 (2020.01); H05B 45/39 (2020.01); H05B 45/395 (2020.01); H05B 45/50 (2020.01); H02M 1/0009 (2021.05); H02M 1/0035 (2021.05); H02M 1/0058 (2021.05); H02M 3/01 (2021.05); H05B 45/375 (2020.01); H05B 45/3725 (2020.01); Y02B 70/10 (2013.01);
Abstract

A method for controlling an amount of power delivered to an electrical load may include controlling an average magnitude of a load current towards a target load current that ranges from a maximum-rated current to a minimum-rated current in a normal mode, and controlling the average magnitude of the load current below the minimum-rated current in a burst mode. The burst mode may include at least one burst-mode period that comprises a first time period associated with an active state and a second time period associated with an inactive state. During the burst mode, the method may include regulating a peak magnitude of the load current towards the minimum-rated current during the active state, and stopping the generation of at least one drive signal during the inactive state to control the average magnitude of the load current to be less than the minimum-rated current.

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