DRIVER FOR LED LAMP Russian patent published in 2023 - IPC H05B45/00 H05B45/50 

FIELD: electrical engineering.

SUBSTANCE: invention relates to power supply devices for LED lamps, namely to three-phase drivers. The driver for the LED lamp powered from a three-phase alternating current network includes a circuit board, which includes a network rectifying diode bridge, a block for output current stabilization, an electromagnetic compatibility node consisting of a block for protection from microsecond pulse interference of large energy of more than 1500 V and including varistors, thermistor, and discharger located on the circuit board, while the block for output current stabilization includes a node for protection from high voltage. The node for protection from high voltage is installed at an input of the driver, while an induction coil, varistors, and gas discharges are sequentially connected to each phase. Each pair formed by the varistor and the gas discharger sequentially connected between each phase, as well as each pair formed by the varistor and the gas discharger connected between each phase and a grounding conductor form protective circuits.

EFFECT: increase in a power coefficient, driver performance, elimination of output current pulsation, and increase in the reliability of operation of the device in general.

5 cl, 1 dwg