Sinewave Constant Current Regulator of Airfield Light System

• Main Authors: LEE YOHAN, JUNG JINSEOB, LIM CHAETAEK, JANG HOIL, LIM MINSU, LEE JAEPYO, KANG GEEHUN, LIM DAEYOUNG
• Format: Patent
• Language: English; Korean
• Published: 30.12.2022
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The present invention relates to a sine wave constant current regulator, and more particularly, to an IGBT current source supply method other than the existing SCR phase control power supply method. A sine wave constant current regulator of an airfield light system of the present invention comprises: a supercharger circuit (50) which charges a DC link (80) before a magnetic switch (60) is opened; a PFC circuit (70) which improves power factor by controlling the voltage and current of the DC link (80); the DC link (80) which forms a stable DC voltage, to supply the same to a sine wave PWM inverter (100); an H-bridge IGBT driver (110) which supplies two opposing gate output signals to IGBT circuit A and IGBT circuit B in a crossing manner; the sine wave PWM inverter (100) which generates a differential output voltage of 60 Hz cycle; and a main controller (90) which controls the sine wave constant current regulator. 본 발명은 정현파 정전류 조정기에 관한 것으로서, 보다 상세하게는 기존의 SCR 위상제어방식의 전원 공급 방식이 아닌 IGBT 전류원 공급방식에 관한 것이다.