Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1994.07a
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- Pages.412-414
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- 1994
Active Resonant Snubber for Ideal Switched PWM Converter
능동형 공진 스너버
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Moon, Gun-Woo
(Dept. of E. E. in KAIST)
;
- Lee, Jung-Hoon (Dept. of E. E. in KAIST) ;
- Jung, Young-Seok (Dept. of E. E. in KAIST) ;
- Youn, Myung-Joong (Dept. of E. E. in KAIST)
- Published : 1994.07.21
Abstract
A new active resonant snubber (ARS) circuit providing the ideal switching conditions for PWM converter is presented. By using the proposed ARS circuit to PWM converters, the power switches can be operated to give zero-current and zero-voltage at both the instant of switch off and switch on, without increasing voltage/current stresses of the switches. Furthermore, the PWM converters employed ARS circuit has the advantage that it can operate at constant frequency, giving better definded EMI and filter ripple, and it is also suited for high-power application regardless of the semiconductor devices (such as MOSFETs or IGBTs) used as a power switches.
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