10-10-2019 дата публикации
Номер: WO2019194340A1
Принадлежит:
A constant power LED converter according to one embodiment of the present invention comprises: a power supply unit for receiving alternating current power, converting same into direct current power, and outputting the direct current power; a reactor unit for generating an operating voltage, a reference voltage for generation of a constant voltage, a reference current for generation of a constant current, and a driving voltage for operation of an LED which is a load, from the direct current power according to a predetermined winding turns ratio (transformer turns ratio);a control unit for comparing the operating voltage, the reference voltage, and the reference current with the driving voltage for the operation of the LED so as to output a pulse-width modulation (PWM) signal for adjustment of an operation of the reactor unit, and simultaneously, compensating for a power factor; and a switching unit for inducing an on/off operation of the FET by causing the PWM signal to be input to a gate ...
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