논문 국내 국제전문학술지(SCI급) CLASS-E POWER AMPLIFIER WITH MINIMAL STANDBY POWER FOR WIRELESS POWER TRANSFER SYSTEM
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-01
- 학술지명 JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- 발행처명 대한전기학회
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
This paper presents a method for minimizing standby power consumption in wireless power transfer (WPT) system via magnetic resonance coupli ng (MRC) that operates at 6.78 MHz. The proposed circuit controls the required capacitance according to operational condition in order t o reduce standby power consumption. Based on an impedance characteri stic of the class-E power amplifier, operational principles of the prop osed circuit are analyzed. Moreover, to verify the effectiveness of the proposed class-E power amplifier, an 8 W prototype for WPT system is implemented. The measured input power of the proposed class-E pow er amplifier at standby condition is reduced from 5.81 W to 3.53 W.