FIELD: electricity.
SUBSTANCE: invention relates to systems of lighting engineering. The result is attained by the fact that lighting system (100) comprises LED system (120) including two or more LED groups (21, 22, 23, 24, 451, 452) and current distribution facilities (140), wherein each LED group comprises one or more individual LEDs, and LED system (120) has two input leads (121, 122); one controlled power supply circuit (130) for delivery of working energy to LED system (120), at that power supply circuit has two output leads (131, 132) connected respectively to two input leads (121, 122) of LED system (120); control unit (2) to control power supply circuit (130); at that control unit (2) is intended to control output voltage (Vi) of power supply circuit, and moreover current distribution facilities are sensitive to input voltage (Vi) at input leads of LED system for current consumption from the power supply circuit and distribution of this current between different LED groups depending on the level of input voltage.
EFFECT: provided lighting system that contains multitude of different LED groups supplied by the same common power supply circuit, wherein changes in light intensity and colour are possible.
15 cl, 18 dwg
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Authors
Dates
2016-01-20—Published
2011-11-15—Filed