Direct load current shaping of LED driver with increased reliability

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Authors: Korolskiy D. A., Mihalchenko G. Ya., Mihalchenko S. G.

Annotation: Principle of load current shaping of LED driver without smoothing high capability capacitor at the input is considered. Mathematical model of power circuit is constructed, analytical expressions of currents and voltages for substitution circuit is received and modulating functions in control system of converter is established.

Keywords: power supply, led, electrolytic capacitor, storage capacitor, reversible converter, modulating function