US Patent No. 10,925,131

PREDICTIVE LIGHTING CONTROL USING LOAD CURRENT SLEW RATE FOR POWER SWITCHING


Patent No. 10,925,131
Issue Date February 16, 2021
Title Predictive Lighting Control Using Load Current Slew Rate For Power Switching
Inventorship Sidney Lyle King, Draper, UT (US)
Joseph M. Doubek, Salt Lake City, UT (US)
Gregory Scott Smith, Woods Cross, UT (US)
Robert Don Bruhn, Jr., West Jordan, UT (US)
Assignee WirePath Home Systems, LLC, Salt Lake City, UT (US)

Claim of US Patent No. 10,925,131

1. An electronic device, comprising:current measuring circuitry configured to measure load current to produce a load current measurement; and
a processor coupled to the current measuring circuitry, wherein the processor is configured to calculate an estimated load current slope based on the load current measurement and to determine a predicted zero-cross point for the load current based on the estimated load current slope to minimize damaging voltage spike creation, and wherein the processor calculates a rolling average of the load current for a current sample point.