DRIVER FOR LED LUMINAIRE Russian patent published in 2022 - IPC H05B45/00 

FIELD: power supply devices.

SUBSTANCE: invention relates to power supply devices for LED lamps, in particular to drivers for LED lamps for use in the field of lighting. The effect is achieved by the fact that the driver includes a board on which a network rectifier diode bridge is installed, power switches, diodes, capacitors, a filter for suppression of common-mode and differential noise, current-measuring resistors, an LED module, an analysis and control unit for a power switch using the PFM/PWM algorithm, an output current stabilization unit, a high-voltage capacitor, an electromagnetic compatibility unit, consisting of a protection unit against high-energy microsecond impulse noise of more than 1500 V, including varistors, a thermistor and an arrester located on the printed circuit board, a common-mode and differential noise suppression filter. The driver contains an active power corrector unit, consisting of an inductance coil, a power switch, a rectifier diode, current-measuring resistors of the output capacitor, an output voltage analysis unit and a transistor control. The rectifier diode and current-measuring resistors are connected in series with the load, and the power switch and the output capacitor are connected in parallel. The driver contains a power supply connected in parallel with the output of the network rectifier diode bridge. The output current stabilization unit is connected to the output of the active power factor corrector unit and additionally contains current measuring resistors, a power transistor, a rectifier diode, an output capacitor, an inductor and an output current setting unit.

EFFECT: creation of a driver with a function of protection against impulse noise of high energy (up to 10 kV), an increase in the power factor, the ability to work at phase-to-phase voltage, the possibility of precise manual adjustment of the output power of the luminaire, as well as protection against prolonged exposure to high voltage.

2 cl, 4 dwg