Flying-capacitor Linear Amplifier with N-channel MOSFETs for Radiation Noise Reduction of Wireless Power Transfer System
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20214319
- Paper/Info type
- Other International Conferences
No.D1.3
- Pages
- 1-6(Total 6 p)
- Date of publication
- May 2021
- Publisher
- JSAE
- Language
- English
- Event
- International Electric Vehicle Technology Conference EVTeC 2021 [Online Meeting]
Detailed Information
| Category(E) | Wireless Power Transfer I |
|---|---|
| Author(E) | 1) Rintaro Kusui, 2) Keisuke Kusaka, 3) Jun-ichi Itoh |
| Affiliation(E) | 1) Nagaoka University of Technology, 2) Nagaoka University of Technology, 3) Nagaoka University of Technology |
| Abstract(E) | This paper proposed a flying-capacitor linear amplifier (FCLA) for wireless power transfer (WPT) systems. The proposed FCLA consists of only n-channel MOSFETs and an unfolder in the output stage. The FCLA with the unfolder output a sinusoidal voltage and current. Due to the sinusoidal output, the radiation noise harmonics from transmission coils reduces. First, the proposed FCLA configuration and control method is explained. Then, the operation of the proposed FCLA connected to the WPT system is demonstrated by simulation. In addition, harmonic components of current on a primary coil are analyzed. As a result, it is confirmed that the third-order harmonic component is reduced by 49.1 dB in comparison with a conventional two-level inverter. Finally, it is confirmed that the flying capacitor voltage is automatically balanced by a prototype with two-series MOSFETs in the upper arm. Furthermore, the third-order harmonic output voltage is reduced by 19.8 dB compared to the square wave. |
