Patent ID: 8618746

Claim:
A LED Ballast Controller Device (LED BCD) comprising; a ballast connector configured to attach into the receptacle of a Fluorescent Lighting Luminaire or gas fluorescent tube lighting fixture â€œFLSocket Connectorâ€, a first High Voltage switch connected between the FLSocket Connector and a non-fluorescent lighting device including a LED Tube or Bulb, such that the High Voltage switch can electrically isolate the LED Tube or Bulb from the FLSocket Connector, a second High Voltage switch connected between the FLSocket Connector and a Dynamic Adaptive Resistive Load (DARL), a Dynamic Adaptive Resistive Load (DARL) element comprising of a plurality of AC Switch/Resistor (AC SR) loads in parallel, such that each leg of the parallel load (AC SR) comprises of an AC Switch and a Resistor in series, a first electronic circuit connected to the FLSocket Connector comprising of a Bridge Rectifier that can convert the input AC voltage to a Bridge Rectified (DC) voltage, a DC Voltage regulator that connects to the Bridge Rectifier and outputs a stable DC Reference voltage, plurality of Voltage Comparators which using said stable DC Reference voltage compared with Bridge Rectified (DC) Voltage will generate voltage signals at various voltage threshold levels, and a second electronic circuit Timing and Logic Circuit (TLC) comprising of logic and timing circuitry connected to the Voltage Comparators, High Voltage switches, and the DARL, such that Timing and Logic Circuit (TLC) controls the functions of the High Voltage Switches and DARL, wherein the first and second electronic circuits in combination functions to emulate the voltage and current characteristics of a glass fluorescent gas tube during the startup phase of a fluorescent ballast, wherein the first and second electronic circuits in combination functions to block all power from the FLSocket Connector to the non-fluorescent lighting device including a LED Tube or Bulb during start-up phase, wherein the first and second electronic circuits in combination continues to monitor and protect the LED Tube or Bulb from the high voltages of FLSocket Connector after startup, wherein the functions of the DARL as controlled by the first and second electronic circuits dynamically emulate the load current characteristics of a fluorescent tube in phase with the input voltage from the FLSocket Connector due to the passive resistive characteristics of the attached Resistor elements in the DARL, each parallel leg of the DARL element comprising of an AC switch and resistor in series, each parallel leg of the switch and resistor in the DARL are turned on or off by the control logic to dynamically simulate a load current characteristic of a fluorescent tube.