Title :
An Improved Single-Stage Flyback PFC Converter for High-Luminance Lighting LED Lamps
Author :
TianFu, Pan ; Chiu HuangJen ; ShihJen, Cheng ; Yen, Chyng Shih
Author_Institution :
Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
This paper presents a universal power supply for high-luminance LED lamp test. The proposed power supply is designed and implemented by adopting an improved single-stage Flyback configuration. A constant current control method is used to regulate the lamp current and brightness under different pieces of LED series connection. A laboratory prototype has been built and tested. With the prototype, high efficiency, high power factor, and constant lamp current can be achieved for the performance test of various LED lamps.
Keywords :
LED lamps; driver circuits; power factor correction; constant current control; high-luminance LED lamp test; high-luminance lighting LED lamps; power factor corrector; single-stage flyback PFC converter; universal power supply; Brightness; Current control; Driver circuits; Instruments; LED lamps; Light emitting diodes; Prototypes; Reactive power; Regulators; Voltage; Constant Current Control; LED Lamp; Power Factor; Single-Stage Flyback;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4351120
