DRIVER DEVICE AND DRIVING METHOD FOR DRIVING LOAD, IN PARTICULAR LED UNIT Russian patent published in 2017 - IPC H05B33/08 

FIELD: lighting engineering.

SUBSTANCE: invention relates to lighting engineering, particularly to drive device (50a-50e) and corresponding driving method for driving load (22), in particular LED unit, comprising power input unit (52) for receiving input voltage (V20) from external power supply and for providing rectified supply voltage (V52), power conversion unit (54) for conversion of said supply voltage (V52) into load current (I54) for powering load (22), charging capacitor (56) for storage of charge and powering load (22), when power is insufficient for powering load (22) and/or power conversion unit (54) extracted from said external power (20) at present moment, and control unit (58) for controlling charging of said charging capacitor (56) with said supply voltage (V52) to capacitor voltage (V56), which can be considerably higher than peak voltage (V52) of said supply voltage, and for powering load (22).

EFFECT: higher power factor, efficiency of service life of lighting device.

13 cl, 6 dwg