Patent ID: 8823279

Claim:
A lighting module, comprising: at least one array of solid-state lighting elements; a variable resistor having an input of an intensity control voltage for the array of solid-state lighting elements, the variable resistor having an output electrically connected to an input of the array of solid-state lighting elements; and a voltage regulator electrically connected to the output of the variable resistor, the voltage regulator having an output connected to an input of the array of solid-state lighting elements, wherein the voltage regulator comprises an error amplifier electrically connected to the output of the variable resistor, a pulse width modulator generator electrically connected to the error amplifier, a power circuit electrically connected to the pulse width modulator generator, the power circuit having the output connect to the input of the array of solid-state lighting elements, and wherein the error amplifier comprises a summing amplifier receiving as inputs the output of the variable resistor and the output of the power circuit.