METHOD AND DEVICE FOR LIMITATION OF POSITIVE AND NEGATIVE CURRENT EMISSIONS IN LIGHTING POWER SUPPLY SIGNAL SHAPER Russian patent published in 2017 - IPC H05B33/08 

FIELD: lighting.

SUBSTANCE: invention relates to lighting engineering. Lighting power supply signal shaper has a primary circuit side signal shaper configured to convert the input signal from the power supply source – the mains – into the output signal of the primary circuit side, and a secondary circuit side signal shaper connected to the primary circuit side signal shaper and configured to rectify and filter the output signal of the primary circuit side to supply the output current of the power supply signal shaper for exciting the lighting load. Microcontroller controls the lighting power supply signal shaper at starting so that the secondary circuit side signal shaper is supplied with power, and the primary circuit side signal shaper is in the de-energized state during the period of the smooth start, and after the period of the smooth start the secondary circuit side signal shaper is set to the low level state when power is supplied, and then is set to a state so that the output current of the power supply signal shaper from the secondary circuit side signal shaper increases the lighting load light yield from the initial level of brightness to the rated brightness level without flickering.

EFFECT: technical result is the increase of lighting quality.

15 cl, 12 dwg