Lutron Electronics Company, Inc.

Lutron Technology Company LLC

Venkatesh Chitta

Mark Stephen Taipale

Thomas M Shearer

Robert D Stevens, Jr

Jeffrey S Hayes

Dragan Veskovic

Ethan Charles Biery

Matthew W Nuhfer

Arya Abraham

Jonathan Robert Quayle

Russell Lawrence MacAdam

Brent Protzman

Craig Alan Casey

Matthew R Zartman

Kartik Iyer

Jecko Arakkal

Brian J Bollinger

Firozbabu Cholashari

Jonathan Waldron

Alexander J Rovnan

Elik Dvorkin

Brent M Gawrys

David E Cottongim

Robert Charles Newman

Russikesh Kumar

Thomas Richard Hinds

Nicholas A Hoerter

Kenneth D Walma, Jr

David E Cottingim

Brent M Gawyrs

Russell Macadam

Jr Walma Kenneth D

Mark S Taipale

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.

Load control device for a light-emitting diode light source

A load control device for controlling power delivered from an AC power source to an electrical load may have a closed-loop gate drive circuit for controlling a semiconductor switch of a controllably conductive device. The controllably conductive device may be coupled in series between the source and the load. The gate drive circuit may generate a target signal in response to a control circuit. The gate drive circuit may shape the target signal over a period of time and may increase the target signal to a predetermined level after the period of time. The gate drive circuit may receive a feedback signal that indicates a magnitude of a load current conducted through the semiconductor switch. The gate drive circuit may generate a gate control signal in response to the target signal and the feedback signal, and render the semiconductor switch conductive and non-conductive in response to the gate control signal.

Load control device having a closed-loop gate drive circuit including overcurrent protection

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 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.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

Multi-channel lighting fixture having multiple light-emitting diode drivers

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.

Circuits and methods are provided for controlling an intensity of a light-emitting diode (LED) light source. The control is applied through at least an LED drive circuit, a current sense circuit and a control circuit. The control circuit is configured to operate in a first state and a second state on a periodic basis, and to control the LED drive circuit in the first and second states during respective time periods based on a load current feedback signal provided by the current sense circuit. The control circuit is configured to generate at least one drive signal for controlling the LED drive circuit and to adjust an operational characteristic of the at least one drive signal or a length of the time periods to adjust an average magnitude of the load current.

Circuits and methods for controlling an intensity of a light-emitting diode light source

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Center Valley, PA, United States of America

Venkatesh Chitta