General Electric Company

Technical Consumer Products, Inc.

Melvin C Cosby

Louis Robert Nerone

Dustin Cairns

David Joseph Kachmarik

Paul Phillips

Jimmy Zheng

Timothy Chen

George J Uhler

Laszlo Sandor Ilyes

James Kevin Skully

Gordon Alexander Grigor

Benito Trevino

Himamshu Prasad

Jason D Creighton

A light fixture is disclosed, and includes a light emitting diode (LED) engine including plurality of LEDs that transmit visible light. The light fixture also includes a waveguide, where the LEDs of the LED engine surround the waveguide and transmit the visible light in a direction towards the waveguide. The light fixture also includes a second element that provides a secondary service. The light fixture also includes a housing that defines a cavity, where the LED engine and waveguide are positioned within the cavity proximate the front of the light fixture, and the a secondary element is positioned within the cavity toward the rear of the light fixture.

Edge-lit light fixture having capabilities for a secondary service

A wireless device for connection to a network is disclosed. The wireless device includes an antenna for establishing a wireless connection, one or more processors, and a memory coupled to the processor. The memory stores data comprising a sequence of characters that uniquely names a particular type of network that the antenna establishes communication with and program code. When executed by the one or more processors, the program code causes the system to initially set the one or more processors into a default mode. In response to connecting the wireless device to mains power, the program code causes the system to receive network information through the wireless connection.

Cloud connected lighting system

A ballast circuit is provided, comprising: a plurality of inverters, each inverter for powering a load; and a controller operationally coupled to a shutdown control signal of each inverter for selectively shutting down any combination of inverters. In another aspect, the controller is for selectively disabling any combination of inverters to effectively disconnect the load associated with each disabled inverter. The controller is for receiving communications from a control device, each communication a selection of 0%, &ldquo;n&minus;1&rdquo; approximate percentages each associated with a ratio of &ldquo;1&rdquo; through &ldquo;n&minus;1&rdquo; loads to &ldquo;n&rdquo; loads, where &ldquo;n&rdquo; is the total number of loads powered by the inverters of the ballast circuit and where the numerator for each ratio is an integer between &ldquo;1&rdquo; and &ldquo;n&minus;1,&rdquo; inclusive, or 100% light from the combined loads powered by the inverters of the ballast circuit.

Ballast circuit with multiple inverters and dimming controller

A ballast circuit including a power factor correction circuit with an alterable d.c. bus charging rate is provided. The power factor correction circuit selectively alters the d.c. bus charging rate such that, during a startup period for the ballast circuit, the charging rate is faster than during a steady-state period. The ballast circuit including a bridge rectifier, a power factor correction circuit, a bus capacitor, and at least one inverter. The power factor correction circuit including a power factor controller, a semiconductor switch operationally coupled to an output signal of the power factor controller, a selectively alterable impedance network operationally coupled to an output of the semiconductor switch and operationally coupled to an input signal of the power factor controller, and an impedance network control circuit operationally coupled to the impedance network to selectively alter the impedance network.

Power factor correction circuit with faster bus charging rate during startup

Prior to a load being activated, a first capacitive network and the load are operationally in parallel with each other, and the first capacitive network and a first inductor are in series with each other. A second inductor is magnetically coupled to the first inductor to boost a voltage supplied to the load. When the load is activated, a second capacitive network, the load, and the first inductor are operationally in series with each other. In a further embodiment, the first inductor and a second inductor are not capacitively coupled together, rather the second inductor generates lagging current at a first node to cancel leading current generated by the first capacitive network. Heating of the load is accomplished by the use of a cathode heater winding in operational connection with at least one of the cathodes.

High frequency/high power factor inverter circuit with combination cathode heating

A power supply circuit ( ) configured to control operation of a load ( ) including a converter ( ) configured to convert a DC signal to an AC signal, a drive circuit connected to the converter ( ) to control operation of the converter ( ), and a shutdown circuit ( ) connected to the drive circuit to turn off the converter ( ). The shutdown circuit ( ) includes a diode ( ) and a switch ( ).

Growing community of inventors

Lakewood, OH, United States of America

Melvin C Cosby