Abl IP Holding LLC

Leslie Wayne Mullins

Richard Lee Westrick, Jr

Dalibor Zulim

Audwin W Cash

Rick King

In some aspects, a relay control device includes a processor and a timer. The processor is electrically connectable to a relay that controls current flow to a load device. The processor causes the relay to be actuated at a first point in time so that a current flows to the load device. The processor determines an actuation duration for the relay from a measurement of the load current that is obtained with a current sense component. The processor determines a frequency of an input voltage or current from the measured load current. The processor synchronizes the timer with this frequency and identifies a zero-crossing point for a second load current based on the synchronized timer. The processor subsequently causes the relay to be actuated at a time that is offset from the zero-crossing point by the actuation duration.

Controlling relay actuation using load current

A universal load control module may include a power supply that operates over a wide voltage range, a microcontroller, and one or more functional control blocks. A functional control block may include a dimmer circuit for controlling a lighting load that provides reverse phase cut mode dimming, forward phase cut mode dimming, and hybrid phase cut mode dimming, as well as thermal protection. One or more universal control modules may be housed in a cabinet that include a cabinet control module. The cabinet may include additional thermal protection measures.

System and method for thermal protection for a universal load control cabinet

A universal load control module includes a power supply that operates over a wide voltage range, a microcontroller, and one or more functional control blocks. A functional control block includes a dimmer circuit for controlling a lighting load that provides reverse phase cut mode dimming, forward phase cut mode dimming, and hybrid phase cut mode dimming, as well as thermal protection. One or more universal control modules are housed in a cabinet that includes a cabinet control module. The cabinet includes additional thermal protection measures.

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Madison, GA, United States of America

Leslie Wayne Mullins