Patent attributes
A resonant converter is provided with a plurality of secondary transformer windings. A first secondary winding provides a fixed output, which is utilized to control the switching frequency of the resonant converter. A second secondary winding drives one or more LED luminaires, and is provided with a secondary side resonant circuit. When the feedback from the first output calls for a reduced frequency so as to increase the output, the reduced frequency results in an increased impedance of the secondary side resonant circuit so as to prevent any voltage rise for the LED luminaires. When the feedback from the first output calls for an increased frequency so as to reduce the output, the increased frequency results in an decreased impedance of the secondary side resonant circuit so as to prevent any voltage fall for the LED luminaires.
