Title :
Jitter Frequency Modulation - A Technique that Can Reduce EMI Noise Level of Switch Mode Power Supply Effectively
Author :
Jianting, Li ; Rui, Xiong ; Fuzhong, Li ; Jing, Liu
Author_Institution :
Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
The analysis of the theory and realization on reducing EMI with jitter frequency modulation technology is presented. EMI tests and comparison are accomplished respectively on a 60 W switch mode power supply controlled by Top249 integrated with frequency jittering function and a 2 KW high-power switch mode power supply controlled by TL494. The results prove that this technique has a remarkable effect on decrease EMI noise level
Keywords :
electromagnetic interference; frequency modulation; interference suppression; jitter; switched mode power supplies; 3 kW; 60 W; EMI noise level reduction; jitter frequency modulation; switch mode power supply; Electromagnetic compatibility; Electromagnetic interference; Frequency conversion; Frequency modulation; Jitter; Noise level; Power harmonic filters; Power supplies; Pulse width modulation; Switches; EMI; Jitter frequency; PWM modulation; Spectrum;
Conference_Titel :
Environmental Electromagnetics, The 2006 4th Asia-Pacific Conference on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0183-6
DOI :
10.1109/CEEM.2006.258079
