Title :
Research of Full Digital DC/DC Converter Based on DSP
Author :
Xuezhi, Hu ; Guangqun, Nan
Author_Institution :
Huangshi Inst. of Technol., Huangshi, China
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;
Conference_Titel :
Intelligent Information Technology Application, 2009. IITA 2009. Third International Symposium on
Conference_Location :
Nanchang
Print_ISBN :
978-0-7695-3859-4
DOI :
10.1109/IITA.2009.366
