PULSE CONVERTER CIRCUIT Russian patent published in 2020 - IPC H05B33/08 

FIELD: light-emitting diode light sources.

SUBSTANCE: invention relates to power supply units for light-emitting diode light sources of medium and high power. Result is achieved by the fact that pulse converter circuit comprises at least input terminal (IN1) for connection to DC voltage source (VDCbus), integrated control circuit (20), a pair of field-effect transistors (QH, QL) connected to integrated control circuit (20), a pair of coupled inductors (10) connected to a pair of field-effect transistors (QH, QL), diode (D) connected to a pair of field transistors (QH, QL), a pair of capacitors (Cn, Cled), and a first output terminal (OUT1). Converter circuit (1) further comprises control circuit (100) for controlling current at the output of the circuit through the first output terminal (OUT1).

EFFECT: technical result is improvement of operating parameters of power supply units for light-emitting diode light sources of medium and high power, improved reliability of power supply unit for LED light sources, as well as provision of high degree of galvanic isolation.

9 cl, 9 dwg