Title :
Improved zero-voltage-transition (ZVT) boost converter using coupled inductor and low-voltage Zener diode
Author :
Il-Oun Lee ; Lee, D.Y. ; Cho, B.H.
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
An improved zero-voltage transition (ZVT) PWM boost converter using an inductor feedback technique is proposed. The proposed circuit uses a low-voltage Zener diode to reduce the turn-off switching loss of the auxiliary switch and the EMI noise. Using this technique, soft-switching for the auxiliary switch is guaranteed at wide load ranges, and the resonant energy of the auxiliary circuit is fed to the load. The operation principles of the proposed converters are explained and analyzed. Based on the analysis, design guidelines are given. The experimental results of 2 kW, 100 kHz prototype system are presented
Keywords :
DC-DC power convertors; PWM power convertors; Zener diodes; electromagnetic interference; inductors; switching circuits; 100 kHz; 2 kW; PWM boost converter; coupled inductor; inductor feedback technique; low-voltage Zener diode; turn-off switching loss reduction; zero-voltage-transition boost converter; Diodes; Electromagnetic interference; Feedback; Inductors; Noise reduction; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Switching loss;
Conference_Titel :
Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the
Conference_Location :
Osaka
Print_ISBN :
0-7803-7156-9
DOI :
10.1109/PCC.2002.997590
