Appleton Grp LLC

Pankaj Prakashrao Tikle

Timothy E Graff

Ajay Tripathi

Aniket Nitin Mathkari

Rutuja Vijay Sawant

Pushkar Satish Barve

A low voltage lighting system including a fixture () having an array of LEDs () and an LED driver circuit (). The LED driver circuit () includes a Switch-mode Power Supply (SMPS) unit (), a current sensing unit (), a control unit () and a dimming input level shifting and signal conditioning unit (). The SMPS unit () produces an adequate DC power (+V, &#x2212;V) for driving the LEDs (). The control unit () receives a sensed current signal from the current sensing unit () and controls the SMPS unit () to maintain the output current within a pre-determined range. The control unit () receives a dimming signal from the dimming unit () or an emergency signal from a supply unit () to alter the output power of the SMPS unit () from normal mode to dimming mode or emergency mode respectively.

Low voltage LED lighting fixture

The present disclosure relates to the field of luminaire control systems and discloses a system () for dynamic switching control of a luminaire (). The system () comprises an ambient light sensor (), an infrared sensor (), and a control unit (). The ambient light sensor () senses ambient illumination level and generates a light detection signal representative of the sensed ambient illumination level. The infrared sensor () senses infrared radiation of ambient light in the vicinity of the luminaire () and generates an infrared radiation detection signal. The control unit () cooperates with the ambient light sensor () and the infrared sensor () to generate a control signal for controlling the operation of the luminaire (). The control unit () also updates the pre-determined turn on and turn off threshold lux values based on level of contamination on the surface of the ambient light sensor ().

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Maharashtra, India

Pankaj Prakashrao Tikle