Patent ID: 8456103
Filing Date: 2013-06-04
Classification: H05B,Y02B

Abstract:
1. A method, comprising: providing a regulating unit, the regulating unit allowing current to flow onto an load from a voltage source; providing a switch control; determining a setback mode and a power mode; controlling the regulating unit by the switch control thereby allowing a regulated current to flow onto the load during the power mode; providing in the regulating unit an inductor and a switch electrically communicating in series with the LED; regulating the current flow onto the load by charging the inductor from the voltage source and discharging current from the inductor onto the load by toggling the switch between an ON state and an OFF state; providing a current sensor unit, a clock, and a duty cycle control in the switch control; generating a current sensor signal indicative of the current in the regulating unit by the current sensor unit; and generating a switch control signal in response to the current sensor signal the switch control signal placing the switch in the ON state and the OFF state.