Research of Full Digital DC/DC Converter Based on DSP

Author

Xuezhi, Hu ; Guangqun, Nan

Author_Institution

Huangshi Inst. of Technol., Huangshi, China

Volume

2

fYear

2009

fDate

21-22 Nov. 2009

Firstpage

65

Lastpage

68

Abstract

In order to solve the problems in phase shifting full bridge ZVS PWM DC/DC converter basic structure like lagging bridge arm ZVS range is narrow, duty cycle losses as well as secondary rectification diode shutdown voltage peaking and oscillations and other problems, this article proposed one kind of original sideband clamp diode phase shifting full bridge ZVS DC/DC converter, has given the main circuit structure, elaborated the converter working principle and the parameter suppose principle, proposed the voltage, the electric current double shut the control plan, has studied the digitized DC/DC converter realization, and uses TMS320LF2407A to take the controller, has designed the converter numerical control system, finally has carried on the experiment, has given the experimental waveform, explained the correctness of correlation theories.

Keywords

DC-DC power convertors; PWM power convertors; rectification; zero voltage switching; DSP; TMS320LF2407A; duty cycle losses; phase shifting full bridge ZVS PWM DC/DC converter; secondary rectification diode; shutdown voltage peaking; sideband clamp diode; Bridge circuits; Clamps; Control systems; DC-DC power converters; Digital signal processing; Diodes; Pulse width modulation; Pulse width modulation converters; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Information Technology Application, 2009. IITA 2009. Third International Symposium on

Conference_Location

Nanchang

Print_ISBN

978-0-7695-3859-4

Type

conf

DOI

10.1109/IITA.2009.366

Filename

5370414