파라메트릭 어레이 트랜스듀서용 고효율 전력증폭기의 구현
- Alternative Title
- Implementation of High Efficiency Power Amplifier for Parametric Array Transducer
- Abstract
- This paper proposes a high efficiency power amplifier to drive a parametric array transducer for underwater communication. The power amplifier for underwater communication is divided into the amplifying part and the
power source part. The amplifying part consists of Class B Push-Pull
power OP amp and bipolar junction transistors. The power source part is
composed of high-efficiency phase-shifted PWM AC/DC converter that generates a variable voltage, but not a certain fixed voltage. The amplifying part assures outstanding linearity by using the Class B push-pull type
amplifier. The power source part also works with high efficiency by using
the variable voltage AC/DC converter with ET(Envelope Tracking) technique. Finally, the characteristics of the proposed power amplifier are verified through simulation and experiment. It is anticipated that the proposed power amplifier will be used widespread for parametric array
transducer of underwater communication.
- Issued Date
- 2014
- Awarded Date
- 2014. 2
- Type
- Dissertation
- Publisher
- 부경대학교
- Affiliation
- 대학원
- Department
- 대학원 전기공학과
- Advisor
- 김인동
- Table Of Contents
- 그림목차 ·················································ⅲ
표 목 차 ·················································ⅴ
Abstract ·················································ⅵ
1. 서 론 ···············································1
2. Class B Push-Pull 전력증폭기 ·························8
2-1. Parametric Array Transducer의 특성8
2-2. Class B Push-Pull 전력증폭기의 회로 및 설계사양 10
2-3. Parametric Array Transducer 가상부하 모델링 ····· 13
2-4. Class B Push-Pull 전력증폭기 특성 실험 ·········19
3. Parametric Array Transducer용 가변 AC/DC 컨버터 ······26
3-1. 가변 AC/DC 컨버터의 전력회로 및 설계 사양 ·······26
3-2. Open-Loof 제어 실험 ·····························28
4. 고효율 전력증폭기의 결합 시험 ························31
4-1. 고효율 전력증폭기의 제어 알고리즘 ················31
4-2. 고효율 전력증폭기의 수조 실험 환경 ···············39
4-3. 차 주파수에 따른 출력 전압 특성 ··················40
4-4. 고효율 전력증폭기의 THD ·························42
4-5. 고효율 전력증폭기의 효율 특성 ····················43
4-6. 전원부와 증폭부의 방열판 온도측정 ················45
4-7. ADD 수조에서의 데이터 송·수신시험 ···············47
5. 결 론 ··············································50
참 고 문 헌 ··············································51
- Degree
- Master
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