Load control device for a light-emitting diode light source

An electric load control method of determining a current supplied to an electrical load by a load control device that includes load regulation circuitry operatively coupled to electric load controller control circuitry, the method comprising:

• causing, by the electric load controller control circuitry, the load regulation circuitry to reversibly transition a controllably conductive device between a conductive state and a non-conductive state to control the power delivered to an electric load device;
• receiving, by the electric load controller control circuitry from a sense circuit, a load current feedback signal indicative of an average load current provided to the electric load device, the average load current feedback signal using a first voltage sense output signal generated by a coil inductively coupled to a secondary winding of a transformer included in the load regulation circuitry;
• receiving, by the electric load controller control circuitry from the sense circuit,
• a load voltage feedback signal based on the first voltage sense output signal generated by the coil inductively coupled to the secondary coil of the transformer disposed in the load regulation circuitry;
• determining, by the electric load controller control circuitry, a first load current using the received load current feedback signal;
• and
• determining, by the electric load controller control circuitry, a second load current using the received load voltage feedback signal.

The electric load control method of 8 wherein determining the first average load current delivered to the one or more LEDs using the determined first load current, the retrieved efficiency of the load regulation circuitry, and the input power supplied to the primary coil of the transformer disposed in the load regulation circuitry further comprises:

• determining, by the electric load controller control circuitry, the input power to the load regulation circuitry as the product of the first load current and the bus voltage;
• multiplying, by the control circuitry, the determined input power value by the retrieved load regulation circuitry efficiency to determine a load power value;
• and
• determining, by the control circuitry, the first average load current by dividing the determined load power value by the voltage across the electrical load.

A non-transitory, machine-readable, storage device that includes instructions that, when executed by electric load controller control circuitry, causes the electric load controller control circuitry to:

• cause load regulation circuitry to reversibly transition a controllably conductive device between a conductive state and a non-conductive state to control the power delivered to an electric load device;
• receive, from sense circuitry, a load current feedback signal indicative of an average load current provided to the electric load device, the load current feedback signal determined using a first voltage sense output signal generated via a coil inductively coupled to a secondary winding of a transformer included in the load regulation circuitry;
• determine a first load current using the received load current feedback signal;
• and
• determine a second load current using the received load voltage feedback signal.