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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2001.10
- 수록면
- 295 - 300 (6page)
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초록· 키워드
오류제보하기
A variety of high voltage DC power supplies employing the high frequency inverter are difficult to achieve soft switching considering a quick response and no overshoot response under the wide load variation ranges which are used in medical-use x-ray high voltage generator from 20kV to 150kV in the output voltage and from 0.5mA to 1250mA, respectively The authors develops soft switching high voltage DC power supply designed for x-ray power generator applications, which uses series resonant inverter circuit topology with a multistage voltage multiplier instead of a conventional high voltage diode rectifier connected to the second-side of a high-voltage transformer with a large turn ratio A constant on-time dual mode frequency control scheme operating under a principle of zero-current soft switching commutation is described. Introducing the multistage voltage multiplier, the secondary transformer turn-numbers and stray capacitance of high-voltage transformer is effective to be greatly reduced It is proved that the proposed high-voltage converter topology with dual mode frequency modulation mode control scheme is able to be the transient response and steady-state performance in high-voltage x-ray tube load The effectiveness of this high voltage converter is evaluated and discussed on the basis of simulation analysis and observed data in experiment.
목차
Abstract
Ⅰ.INTRODUCTION
Ⅱ.CONVERTER SYSTEM DESCRIPTION
Ⅲ.OPERATION PRINCIPLE AND OUTPUTVOLTAGE CONTROL
Ⅳ.OPEN-LOOP VOLTAGE RESPONSE CHARACTERISTICS
Ⅴ.CONVERTER SYSTEM IMPLEMENTATION WITH TWO-STEP FREQUENCY SWTTCHING CONTROL
Ⅵ.EXPERIMENTAL RESULTS
Ⅶ.CONCLUSIONS
REFERENCES
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