Lutron Electronics Company, Inc.

Lutron Technology Company LLC

Lutron Electroncis Co., Inc.

Pessina, Michael W.

Zaharchuck, Walter S.

Taipale, Mark S.

Steiner, James P.

Mark Stephen Taipale

Robert Charles Newman

Joel S Spira

Venkatesh Chitta

Timothy P Gredler

Akshay Bhat

Russell Lawrence MacAdam

Stuart William Dejonge

John Francis Waymouth

Robert Thomas Nachtrieb

Farheen Khan

Mark Alan Hartfield

Dragan Veskovic

Thomas M Shearer

Steven J Kober

Aaron Dobbins

James P Steiner

Brent Protzman

Michael W Pessina

Brian Michael Courtney

Craig Alan Casey

Walter Steven Zaharchuk

Ethan Charles Biery

Russell Weightman

Timothy Gill

Jonathan Robert Quayle

Dominick Frank Travaglini

Matthew V Harte

Matthew Robert Blakeley

Jason C Killo

David G Luchaco

Stuart W Dejonge

Matthew W Nuhfer

Matthew Skvoretz

Russikesh Kumar

Renzo Corrado DeMeo

Mehmet Ozbek

Keith Joseph Corrigan

Jecko Arakkal

Sriram Gopalakrishnan

Roshni Ashwin Shah

Vidya Sukumar

Mark Yorgey

Johnathan Paul Ross

Alexander S Petersen

Brent M Gawrys

Ryan M Spicer

Sharath R Naik

Mark Charles Fischer

Alexander J Rovnan

Thomas Richard Hinds

David E Cottongim

Scott Edward Rhodes

Robert Anselmo

Kartik Iyer

Robert C Newman

Gregory R Scholz

David E Cottingim

Kolawole A Otitoju

Oliver K Mihm

Nicholas A Hoerter

Walter S Zaharchuck

Jonhathan Paul Ross

Robert A Anselmo

Jecko J Arakkal

Robert C Junior Newman

Mehmet Oabek

Stuart Dejonge

Russell L Macadam

A two-way load control system comprises a power device, such as a load control device for controlling an electrical load receiving power from an AC power source, and a controller adapted to be coupled in series between the source and the power device. The load control system may be installed without requiring any additional wires to be run, and is easily configured without the need for a computer or an advanced commissioning procedure. The power device receives both power and communication over two wires. The controller generates a phase-control voltage and transmits a forward digital message to the power device by encoding digital information in timing edges of the phase-control voltage. The power device transmits a reverse digital message to the controller via the power wiring.

Digital load control system providing power and communication via existing power wiring

A lighting device may include a light source, a plurality of drive circuits, and a control circuit. The light source may include a plurality of emitter circuits that are configured to emit light. The light source may include a first emitter circuit that is configured to emit light at a first color (e.g., color temperature), a second emitter circuit is configured to emit light at a second color (e.g., color temperature), and a third emitter circuit is configured to emit light at a third color (e.g., color temperature). The first, second, and third colors (e.g., color temperatures) may be on a color curve, such as a color temperature curve like the black body locus. The control circuit may be configured to control the amount of power delivered to no more than two emitter circuits to emit light when controlling the light emitted by the light source to the target intensity.

Controllable lighting device

Methods and systems may be used for controlling the color temperature of one or more light sources (e.g., discrete-spectrum light sources) based on fixture capability information. Fixture capability information may be obtained using a configuration tool. The fixture capability information may be determined by the configuration tool, and the fixture capability information determined by the configuration tool may be stored and/or processed. The fixture may have a memory for storing the fixture capability information. The fixture capability information may also be stored in a remote network device. A system controller may obtain the fixture capability information from the fixture or the remote control device. The system controller may generate control instructions based on the fixture capability information and send the control instructions to the fixtures.

Systems and methods for controlling color temperature

A load control system may comprise load control devices for controlling respective electrical loads, and a system controller operable to transmit digital messages including different commands to the load control devices in response to a selection of a preset. The different commands may include a preset command configured to identify preset data in a device database stored at the load control device and/or a multi-output command configured to define the preset data for being stored in the device database. The system controller may decide which of the commands to transmit to the load control devices in response to the selection of the preset.

Digital messages in a load control system

A load control device (e.g., an LED driver) for controlling the intensity of a lighting load (e.g., an LED light source) may provide a wide output range and flicker-free adjustment of the intensity of the lighting load. The load control device may comprise a load regulation circuit, a control circuit, and a filter circuit (e.g., a boxcar filter circuit) that operates in a different manner in dependence upon a target current. When the intensity of the lighting load is near a low-end intensity, the control circuit may adjust an operating frequency of the load regulation circuit in response to the target current, and may control the filter circuit to filter a current feedback signal during a filter window that repeats on periodic basis. When the intensity of the lighting load is near a high-end intensity, the control circuit may control the filter circuit to constantly filter the current feedback signal.

Load control device having a wide output range

A controller comprises a controllably conductive device adapted to be coupled in series electrical connection between an AC power source and a load control device. The controller also comprises a control circuit coupled to the controllably conductive device for rendering the controllably conductive device conductive each half-cycle of the AC power source to generate a phase-control voltage. The control circuit is operable to render the controllably conductive device conductive for a portion of each half-cycle of the AC power source. The control circuit is operable to transmit a digital message to the load control device for controlling the power delivered to the load by encoding digital information in timing edges of the phase-control voltage, where the phase-control voltage having at least one timing edge in each half-cycle of the AC power source when the control circuit is transmitting the digital message to the load control device.

A load control device for controlling the amount of power delivered to an electrical load may include a rectifier circuit configured to receive a phase-control voltage and produce a rectified voltage. A power converter may be configured to receive the rectified voltage at an input and generate a bus voltage. An input capacitor may be coupled across the input of the power converter. The input capacitor may be adapted to charge when the magnitude of the phase control voltage is approximately zero volts. The power converter may be configured to operate in a boost mode, such that the magnitude of the bus voltage is greater than a peak magnitude of the input voltage. The power converter may be configured to operate in a buck mode to charge the input capacitor from the bus voltage when the magnitude of the phase-control voltage is approximately zero volts.

Charging an input capacitor of a load control device

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Harleysville, PA, United States of America

Mark Stephen Taipale