CONTROLLED DRIVER AND EXCITATION METHOD Russian patent published in 2019 - IPC H05B33/08 

FIELD: lighting.

SUBSTANCE: invention relates to components of lighting systems, in particular to load drivers capable of providing controlled input power for a load. Result is achieved by the fact that controlled driver 1 contains primary converter 11 and control circuit 13 isolated from each other by means of optocoupler 18. Controlled driver 11 is isolated from output load 19 by inductively coupled pair of windings 112, 114; wherein said windings are configured to provide supply voltage for said output load. Output load feedback signal indicating load current flowing in second winding is supplied to control circuit by winding 12 isolated from first and second windings 112, 114 so that control circuit 13 remains isolated from output load. Control circuit also directly receives input control signal without optocoupler. Control circuit is also isolated from switching core 111 of primary converter 11 through optocoupler.

EFFECT: technical result is providing a controlled driver, in which the control circuit is isolated from both the primary converter and the output load.

15 cl, 6 dwg