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Sr이 치환된 Rosen 타입 압전변압기의 전기적 특성
주현규(Hyeonkyu Joo),김인성(Insung Kim),정순종(Soonjong Jeong),김민수(Minsoo Kim),송재성(Jaesung Song),이대수(Daesoo Lee),전소현(Sohyeon Jeon) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
Recently, piezoelectric transformer is applied to wide fields. Multi layer piezoelectric transformer has the advantage of high step up ratio, high electromechanical coupling coefficient(Kp) and high mechanical quality factor(Qm), however it shows the peeling-phenomenon of electrode, and high price due to high sintering temperature. Therefore this study focus on the method for fabrication of high power rosen type piezoelectric transformers.
3-1 타입 트리모프 캔틸레버의 마이크로발전 응용기술 개발
김인성(Insung Kim),주현규(Hyeonkyu Joo),정순종(Soonjong Jeong),김민수(Minsoo Kim),송재성(Jaesung Song),전소현(Sohyeon Jeon) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
With recent advanced in portable electric devices, wireless sensor, MEMS and bio-Mechanics device, the new typed power supply, not conventional battery but self-powered energy source is needed. Particularly, the system that harvests from their environments are interests for use in self powered devices. For very low powered devices, environmental energy may be enough to use power source. Therefore, in other to made piezoelectric energy harvesting device. The made 31type triple-morph cantilever was resulted from the conditions of 100㏀, 0.25g, 154㎐ respectively. The thick film was prepared at the condition of 6.57Vrms, and its power was 432.31㎼ and its thickness was 50㎛. And than, the fabricated piezoelectric cantilever was packaged for application.