전자공학회논문지B (Journal of the Korean Institute of Telematics and Electronics B)
- 제33B권10호
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- Pages.148-156
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- 1996
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- 1016-135X(pISSN)
Zero-Voltage-Transition Pulse-Width-Modulation Boost 컨버터의 전달 특성
Transfer Characteristics of the Zero- VoltageTransition Pulse-Width - Modulation Boost Converter
초록
Increasing the switching frquency is essential to achieve the high density of switched mode power supplies, but this leads to the increase of switching losses. A number of new soft switching converters have been presented ot reduce switching losses, but most of them may have some demerits, such as the increase of voltage/current stresses and high conduction losses. To overcome these problems, the ZVT-PWM converter has recently been presented. in this paper, the operation characteristics of the ZVT-PWM boost converter is analyzed, and the steady-states (DC) and small-signal model of this converter are derived and analyzed, and then the transfer functions of this converter are derived. The transfer functions of ZVT-PWM boost converter are similar to those of the conventional PWM boost converter, but the transfer characteristics are affecsted by te duty ratio and the switching frequency.
키워드