Musco Corporation

David L Blanchard

Andrew J Schembs

Myron K Gordin

Alan W Sheldon

Kevin D Van Arendonk

An apparatus, method, and system for a low current led fixture internal auxiliary power supply capable of supplying a low DC voltage output on the order of 1-50 VDC from a voltage input ranging from 15 VDC to 1000 VDC.

Low current LED fixture internal auxiliary power supply

A self-healing overtemp circuit is described and illustrated comprising a temperature sensing circuit, a voltage sensing circuit, and optionally, a current sensing circuit. The self-healing overtemp circuit is designed to ramp down power in an LED lighting system (or other electrical circuit) in response to a sensed or impending thermal runaway (and optionally, overcurrent) event. Said thermal runaway and overcurrent events may be a result of failure of one or more components (e.g., driver, active cooling means) of the lighting system. The self-healing overtemp circuit further comprises means of restoring power to said LEDs in a manner that avoids (i) a perceivably bright flash of light or (ii) increased risk of component failure.

Self-healing overtemp circuits in LED lighting systems

A system, apparatus, and method for operating one or more drivers of light sources, such as can be used with LED lighting fixtures, wherein main power to the drivers is galvanically isolated from communication functionalities to and from the drivers. In one example, a controller can receive information or send information to the drivers in a galvanically isolated manner. The galvanic isolation can be accomplished in different ways and configurations for high flexibility of design.

Apparatus, method, and system for galvanically isolated control and monitoring of LED drivers

The present invention generally relates to the field of large area lighting, such as lighting for sport venues. More specifically, some embodiments of the present invention relate to controlling solid state illumination for various applications including sports lighting, architectural lighting, security lighting, parking, general area, interior, larger area and others. Embodiments according to aspects of the current invention monitor lighting circuits with regard to voltage and current, compare readings with stored models, characterize lighting circuits with regard to stored models for voltage and current, and control lighting circuits in accordance with desirable outcomes.

Apparatus, method, and system for LED fixture temperature measurement, control, and calibration

An apparatus, method and system for controlling one or multiple lighting sources such as those powered by driver circuits or voltage splitting methods, to provide an alternative current path around a failed lighting source when one or more individual lighting sources fail.

Growing community of inventors

Oskaloosa, IA, United States of America

David L Blanchard