Patent ID: 9735617
Date: 2017-08-15
CPC Classifications: H02J,H05B

Claim:
1. A load control system responsive to electric power from either a first power source or a second power source operable during first and second time periods, respectively, comprising: a first circuit responsive to the first and second power sources to develop power waveforms comprising different characteristics during the first and second time periods; a second circuit coupled to the first circuit and responsive to the characteristics of the power developed by the first circuit for developing first and second different outputs during the first and second time periods, respectively, wherein the first output operates at least one light emitting diode (LED) in a first operating mode, and the second output operates the at least one LED in a second operating mode different from the first operating mode; and wherein the first circuit switches between the first and second power sources in response to at least one of the characteristics of the power waveform developed by the first power source crossing a predetermined threshold.