CPC H02M 1/36 (2013.01) [H05B 45/14 (2020.01); H05B 45/3725 (2020.01); H05B 45/385 (2020.01); H05B 47/165 (2020.01); H02M 3/33507 (2013.01); H05B 45/375 (2020.01); H05B 45/38 (2020.01)] | 20 Claims |
1. A method of controlling an intensity of a lighting load, the method comprising:
generating, by a power converter circuit, a bus voltage across a bus capacitor;
controlling the magnitude of a load current conducted through the lighting load to adjust the intensity of the lighting load;
measuring a voltage representative of a load voltage produced across the lighting load;
storing a value representative of the measured voltage as a learned voltage;
determining an operating parameter for the power converter circuit as a function of the learned voltage; and
controlling the power converter circuit to charge the bus capacitor using open loop control according to the operating parameter until the magnitude of the bus voltage reaches a threshold.
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