Title :
A ZVS DC-DC converter using non-dissipative snubber circuit
Author :
Sun, Tiecheng ; Guo, Jianhui ; Li, Rui ; Fu, Lei ; Liang, Lian
Author_Institution :
Sch. of Electr. Eng. & Autom., Harbin Inst. of Technol., Harbin
Abstract :
Based on the characteristics of conventional full-bridge phase-shift PWM ZVS (zero-voltage-switching) DC-DC converter, a novel full-bridge phase-shift PWM ZVS DC-DC converter using non-dissipative snubber circuit is proposed. The converter can achieve ZVS for all switches effectively. The principle and operation modes of the converter are analyzed in detail, and the necessary condition of soft switching is also analyzed. The digital control system of the converter is designed base on TMS32OF2812 DSP. The proposed theory has been verified on a 24V/2A, 100 kHz experimental converter. The soft switching of leading and lagging legs can be achieved in wide load rang.
Keywords :
DC-DC power convertors; PWM power convertors; control system synthesis; digital control; snubbers; switching convertors; zero voltage switching; TMS32OF2812 DSP; ZVS DC-DC converter; current 2 A; digital control system design; frequency 100 kHz; full-bridge phase-shift PWM converter; non-dissipative snubber circuit; voltage 24 V; zero-voltage-switching; Circuits; DC-DC power converters; Digital control; Digital signal processing; Pulse width modulation; Pulse width modulation converters; Snubbers; Switches; Switching converters; Zero voltage switching; Full-bridge converter; Non-dissipative snubber circuit; Zero-voltage switching;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-1848-0
Electronic_ISBN :
978-1-4244-1849-7
DOI :
10.1109/VPPC.2008.4677770
