Abstract: A light emitting diode (LED) lighting system has a LED light fixture with a channel having a LED string, and has a controller adapted to receive a power input and a control input, and to provide a constant voltage pulse-width modulated (PWM) power to the channel in response to the control input. The channel has a series regulator operable to convert the constant voltage PWM power to constant current PWM power to regulate current through the LED string. The series regulator proves an internal voltage reference and internal temperature compensation and is operable to regulate the current through the LED string with high precision over a wide temperature range, and is powered solely by the constant voltage PWM power. The lighting system is operable to dim the LED string from 100 percent to zero or near zero percent at high PWM frequencies without perceptible flicker or jitter.

Abstract: A low voltage power distribution system that provides low voltage DC power to LED light fixtures and provides for backup or redundant power in the event of a failure of the one of the primary power supplies feeding the output channels to the respective LED light fixtures. The system allows for the automatic switching out of a failed power supply and the switching in of a spare power supply to minimize any down time for a output channel in the event of a primary power supply failure.

Abstract: A low voltage power distribution system that provides low voltage DC power to LED light fixtures and provides for backup or redundant power in the event of a failure of the one of the primary power supplies feeding the output channels to the respective LED light fixtures. The system allows for the automatic switching out of a failed power supply and the switching in of a spare power supply to minimize any down time for a output channel in the event of a primary power supply failure.

Abstract: A lighting control system for use with LED light fixtures that facilitates precise current overload control to achieve transmission of a maximum amount of power across the low-voltage class II cable. The system using an active power control circuit to limit the power transmitted via the low-voltage cable. The system providing under voltage lockout, programmable soft starting, true short circuit protection, overvoltage shutdown and full dimming with the light fixtures being synchronized with no startup delay.

Abstract: A system for controlling LED light fixtures such that in the event of a loss of the lighting control signal the LED light fixtures may be controlled in a proper and predictable manner. The system includes a Digital Power Module (DPM) that receives the lighting control signal and transmits a control signal to a Fixture Control Module (FCM) connected to the LED lights. In the event the lighting control signal is not received by the DPM, it is adapted to send a backup control signal to the FCM to control the LEDs. Additionally, in the event the DPM fails to send a control signal to the FCM, the FCM is adapted to control the LEDs is a predefined manner such that the LEDs are always functional even with a loss of the input control signal.

Abstract: A lighting system and method includes a light module and control module having analog and digital inputs. The control module sends a lighting control output signal to the light module. A mode selector sets a mode of the control module. In a first mode, the lighting control output signal is based on one analog dimming lighting control input signal provided to an analog input. In a second mode, the lighting control output signal is based on dimming and color lighting control input signals provided to two analog inputs. In a third mode, the lighting output control signal is based on a digital lighting control input signal provided to a digital input. In a fourth mode, the control module determines a selected lighting scene based on a scene selection input signal provided to an analog input, and the lighting output signal is based on the selected lighting scene.

Abstract: A highly configurable and flexible distributed lighting control system that includes a Digital Power Module (DPM) connected to at least one remote/distributed Fixture Control Module (FCM) that controls an associated LED light fixture. The LED light fixture including at least two LEDs that are independently controllable. The LED light fixture adapted to receive various control signals for controlling the at least two LEDs.

Abstract: A distributed lighting control system that minimizes or eliminates standby power usage in a low voltage lighting system where a digital power module is adapted to receive at least one control signal and to transmits an output control signal on one or more output ports to control various fixture control modules each having associated LED light fixtures, the digital power module functioning to shut off the transmission of electrical power to the fixture control modules to prevent standby power usage by the fixture control modules.

Abstract: A lighting control system that allows for flexible control of low-voltage LED light fixtures connected to an output of a digital power module such that during “normal” operation where the digital power module is receiving electrical power from the building electrical system, the digital power module controls the connected light fixtures according to a first control scheme and in the event of an interruption of building electrical power (“emergency” operation), the system receives backup power and control the connected light fixtures according to a second control scheme.

Abstract: A distributed lighting control system that minimizes or eliminates standby power usage in a low voltage lighting system where a digital power module is adapted to receive at least one control signal and to transmits an output control signal on one or more output ports to control various fixture control modules each having associated LED light fixtures, the digital power module functioning to shut off the transmission of electrical power to the fixture control modules to prevent standby power usage by the fixture control modules.

Abstract: A lighting control system that allows for flexible control of low-voltage LED light fixtures connected to an output of a digital power module such that during “normal” operation where the digital power module is receiving electrical power from the building electrical system, the digital power module controls the connected light fixtures according to a first control scheme and in the event of an interruption of building electrical power (“emergency” operation), the system receives backup power and control the connected light fixtures according to a second control scheme.

Abstract: A highly configurable and flexible distributed lighting control system that includes a Digital Power Module (DPM) connected to at least one remote/distributed Fixture Control Module (FCM) that controls an associated LED light fixture. The LED light fixture including at least two LEDs that are independently controllable. The LED light fixture adapted to receive various control signals for controlling the at least two LEDs.

Abstract: A lighting system and method includes a light module and control module having analog and digital inputs. The control module sends a lighting control output signal to the light module. A mode selector sets a mode of the control module. In a first mode, the lighting control output signal is based on one analog dimming lighting control input signal provided to an analog input. In a second mode, the lighting control output signal is based on dimming and color lighting control input signals provided to two analog inputs. In a third mode, the lighting output control signal is based on a digital lighting control input signal provided to a digital input. In a fourth mode, the control module determines a selected lighting scene based on a scene selection input signal provided to an analog input, and the lighting output signal is based on the selected lighting scene.

Abstract: A lighting control system for use with LED light fixtures that facilitates precise current overload control to achieve transmission of a maximum amount of power across the low-voltage class II cable. The system using an active power control circuit to limit the power transmitted via the low-voltage cable. The system providing under voltage lockout, programmable soft starting, true short circuit protection, overvoltage shutdown and full dimming with the light fixtures being synchronized with no startup delay.

Abstract: A system for controlling LED light fixtures such that in the event of a loss of the lighting control signal the LED light fixtures may be controlled in a proper and predictable manner. The system includes a Digital Power Module (DPM) that receives the lighting control signal and transmits a control signal to a Fixture Control Module (FCM) connected to the LED lights. In the event the lighting control signal is not received by the DPM, it is adapted to send a backup control signal to the FCM to control the LEDs. Additionally, in the event the DPM fails to send a control signal to the FCM, the FCM is adapted to control the LEDs is a predefined manner such that the LEDs are always functional even with a loss of the input control signal.

Abstract: A digital control module that is used to power LED light fixtures connected thereto, the digital control module allowing for the continued control and powering of some or all of the connected LED light fixtures even in the event that one of the DC power supplies in the digital control module fails.

Abstract: A lighting system has first and second light sources operable to generate light having cool and warm white color temperatures, respectively. A color control provides a variable color control signal to adjust a perceived color output of the lighting system. Throughout a range of the color control signal, the controller is operable to smoothly vary the perceived color output of the lighting system between the cool white color and the warm white color. In second and thirds ranges of the color control signal, the perceived color output of the lighting system is the cool or warm white color, respectively.

Abstract: A lighting system provides for control of the perceived color of the light emitted by the light fixture. The light fixture has two light sources, a control circuit pulses the two light sources and changes relative duty cycles of the light sources to alter a perceived color output of the lighting fixture, in response to a control signal. Duty cycles of the light sources are a function of the control signal.

Abstract: A lighting system has first and second light sources operable to generate light having cool and warm white color temperatures, respectively. A color control provides a variable color control signal to adjust a perceived color output of the lighting system. Throughout a range of the color control signal, the controller is operable to smoothly vary the perceived color output of the lighting system between the cool white color and the warm white color. In second and thirds ranges of the color control signal, the perceived color output of the lighting system is the cool or warm white color, respectively.

Abstract: A lighting system provides for control of the perceived color of the light emitted by the light fixture. The light fixture has two light sources, a control circuit pulses the two light sources and changes relative duty cycles of the light sources to alter a perceived color output of the lighting fixture, in response to a control signal. Duty cycles of the light sources are a function of the control signal.