FIELD: electrical engineering.
SUBSTANCE: device for controlling current to a solid state lighting load includes capacitor (241, 341) and current source (245, 345). Capacitor is connected in parallel to solid state lighting load (260, 360). Current source is connected in series with parallel arrangement of capacitor and solid state lighting load. Current source is configured to modulate dynamically amplitude of an input current provided to parallel arrangement of capacitor and solid state lighting load based on an input voltage.
EFFECT: technical result is higher power factor and efficiency of lighting element.
15 cl, 6 dwg
