Zero-voltage- and zero-current-switched PWM DC-DC converters using active snubber

Author

Zhu, Julian Y. ; Ding, Daohong

Author_Institution

Dept. of Autom. Control, Nanjing Univ. of Aeronaut. & Astronaut., China

Volume

35

Issue

6

fYear

1999

Firstpage

1406

Lastpage

1412

Abstract

A novel active snubber soft-switched method is proposed to achieve zero-voltage and zero-current switching (ZV-ZCS) for pulsewidth modulation (PWM) DC-DC power converters. The unique location of the snubber capacitor and inductor ensures low current stress and commutation losses in the auxiliary circuit. A boost converter adopting this technique is presented as an example, to illuminate its operation principles and derive the design procedures. Simulation and hardware implementation of a 350-W 150-kHz boost converter have been made to validate the operation and the efficiency improvement. Some other basic PWM DC-DC topologies with the proposed snubber are also been given

Keywords

DC-DC power convertors; PWM power convertors; active networks; commutation; snubbers; switching circuits; 150 Hz; 350 W; PWM DC-DC power converters; ZCS; ZVS; active snubber; boost converter; commutation losses; current stress; inductor; snubber capacitor; Circuit simulation; DC-DC power converters; Hardware; Inductors; Pulse width modulation; Pulse width modulation converters; Snubbers; Stress; Switched capacitor circuits; Zero current switching;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.806056

Filename

806056