Control module for a driver for an electrical load

A light-emitting diode (LED) fixture control method, comprising:

• receiving, via input terminals included in an LED driver control circuit, an output current from LED driver circuitry, the LED driver circuitry characterized by a high-end intensity and a low-end intensity;
• determining, by the LED drive control circuit, a first load current for the first LED light source and a second load current for a second LED light source to achieve a target intensity less than the low-end intensity of an LED driver;
• generating, by the LED drive control circuit, a first pulse-width modulated (PWM) drive signal to cause a first controllably conductive device to reversibly transition between a conductive state and a non-conductive state to control a magnitude of the first load current;
• generating, by the LED drive control circuit, a second PWM drive signal to cause a second controllably conductive device to reversibly transition between a conductive state and a non-conductive state to control a magnitude of the second load current;
• and
• causing, by the LED drive control circuit, a diversion of at least a portion of the LED driver output current through an artificial load circuit such that the cumulative intensity of light emitted by the first LED light source and the second LED light source is at the target intensity below the low-end intensity of the LED driver.

A non-transitory, machine-readable, storage device that includes instructions that, when executed by an LED driver control circuit, cause the LED driver control circuit to:

• determine a first load current for the first LED light source and a second load current for a second LED light source to achieve a target intensity less than a low-end intensity of an LED driver;
• receive, via input terminals, an output current from LED driver circuitry, the LED driver circuitry characterized by a high-end intensity and a low-end intensity;
• generate a first pulse-width modulated (PWM) drive signal to cause a first controllably conductive device to reversibly transition between a conductive state and a non-conductive state to control a magnitude of the first load current;
• generate a second PWM drive signal to cause a second controllably conductive device to reversibly transition between a conductive state and a non-conductive state to control a magnitude of the second load current;
• and
• cause a diversion of at least a portion of the LED driver output current through an artificial load circuit such that the cumulative intensity of light emitted by the first LED light source and the second LED light source is at the target intensity below the low-end intensity of the LED driver.