LIGHT-EMITTING DIODE DRIVER CONTROLLED BY PULSE OVERLAID ON POWER SUPPLY SIGNAL Russian patent published in 2017 - IPC H05B37/02 

FIELD: lighting.

SUBSTANCE: invention relates to a driver for exciting LED circuits. Result is achieved by that a driver for exciting circuits (10, 20, 30) of light-emitting diodes is provided with first and second outputs (1, 2) for receiving a voltage signal from source (5) and first switching circuit (11, 12) connected to second output (2) and to third output (3). First and third outputs (1, 3) should be connected to electrodes of first circuit (10) of light-emitting diodes. First switching circuit (11, 12) contains first switch (11) and first circuit (12) of timing for activation of first switch (11) to switch on first circuit (10) of light-emitting diodes in response to the first pulse signal, which is added to the voltage signal. Sequential pulse signals can be used for sequential switching on circuits (10, 20) of light-emitting diodes.

EFFECT: technical result is avoiding the need for synchronizing signals, separation of wiring for power supply from wiring for the driver control, as well as avoiding the need for using three-output light-emitting diodes with control electrodes.

14 cl, 7 dwg