Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2002.06a
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- Pages.98-101
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- 2002
Conducted Noise Reduction in Random Pulse Width Modulation
Random PWM 기법에 의한 전도노이즈
- Jung, Dong-Hyo (Incheon Junior College) ;
- Kim, Sang-Nam (Incheon Junior College)
- Published : 2002.06.30
Abstract
The switching-mode power converter has been widely used because of its features of high efficiency and small weight and size. These features are brought by the ON-OFF operation of semiconductor switching devices. However, this switching operation causes the surge and EMI(Electromagnetic Interference) which deteriorate the reliability of the converter themselves and entire electronic systems. This problem on the surge and noise is one of the most serious difficulties in AC-to-DC converter. In the case of carrier frequency selection, output-voltage of steady state and transient state is fully regulated. A RPWM control method was proposed in order to smooth the switching noise spectrum and reduce it's level. Experimental results are verified by converter operating at 300V/1kW with 5%
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