Abstract
The Republic of Korea This paper presents a novel Zero Current Switching (ZCS)-PWM controlled half-bridge DC-DC converter with High-Frequency (HF)-link. The newly-proposed soft switching DC-DC converter consists of a multi-resonant halfbridge HF-isolated inverter controlled by an asymmetrical PWM scheme and a center-tapped diode rectifier with a choke input filter. In order to attain the wide range of soft-commutation under the condition of constant switching frequency, the single Active Edge-Resonant Cell (AERC) that is composed of a lossless inductor and a switched resonant capacitor is originally employed for the half-bridge inverter arm, providing and assisting ZCS operations in the switching power devices. The ZCS-PWM DC-DC converter treated here is evaluated in experiments using the 800 W55 kHz prototype. The practical effectiveness of the proposed soft switching DC-DC converter is actually demonstrated and discussed with the experimental results under open loop and closed loop configurations. Finally, the feasibility of the DC-DC converter topology is discussed from the view points of the high efficiency and high power density.
Original language | English |
---|---|
Pages (from-to) | 605-613+4 |
Journal | ieej transactions on industry applications |
Volume | 130 |
Issue number | 5 |
DOIs | |
Publication status | Published - Jun 22 2010 |
Externally published | Yes |
Keywords
- Active Edge-Resonant Cell (AERC)
- Asymmetrical half-bridge DC-DC converter
- High frequency (HF)-link
- PWM
- Soft switching
- Zero current switching (ZCS)
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering