Patent ID: 11888401
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electric load control system to determine a current supplied to an electrical load, the system comprising:
load regulation circuitry that includes:
a controllably conductive device to receive a bus voltage and provide a high frequency inverter voltage output;
a transformer to receive the high frequency inverter voltage output via a primary winding and provide via a secondary winding a load voltage to an operatively coupled electric load device; and
a coil coupled to secondary winding of the transformer, the coil to provide a voltage sense output signal;

sense circuitry to receive the voltage sense output signal;
wherein the sense circuitry includes:
a current sense circuit to determine a load current feedback signal indicative of a load current provided to the electrical load; and
a voltage sense circuit to determine a load voltage feedback signal indicative of a load voltage across the electrical load; and

electric load controller control circuitry operatively coupled to the load regulation circuitry and to the sense circuitry, the electric load controller control circuitry to:
reversibly transition the controllably conductive device between a conductive state and a non-conductive state to control the power delivered to the operatively coupled electric load device;
determine a first load current using the determined load current feedback signal; and
determine a second load current using the determined load voltage feedback signal.