Title :
DSP control of a resonant switching high-voltage power supply for X-ray generators
Author :
Liang, Shyh-Shin ; Tzou, Ying-Yu
Author_Institution :
Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This paper presents the design and implementation of a high-power high-voltage power supplies for X-ray tubes. A new digital control scheme has been developed for the fully digital control of a resonant DC-DC converter to cope with the highly nonlinear characteristics of the X-ray tube. A single-chip DSP controller, the TMS320F240 from Texas Instruments, has been employed for the realization of the digital control scheme. The developed power converter modules can be serially or parallel connected to generate very high voltage or very high current for X-ray tubes or magnet power supply applications. Practical realization issues for the digital control of modularized power supplies have been discussed. A DSP-controlled 8 kW resonant switching DC-DC converter module has been implemented. Experimental results show the feasibility and advantages of using DSP control for sophisticated power supply system.
Keywords :
DC-DC power convertors; X-ray production; X-ray tubes; digital signal processing chips; power supplies to apparatus; resonant power convertors; switching circuits; voltage control; 8 kW; DSP control; TMS320F240 single-chip DSP controller; X-ray generators; X-ray tubes; digital control scheme; high-power high-voltage power supplies; magnet power supply applications; nonlinear characteristics; resonant switching high-voltage power supply; Control systems; DC-DC power converters; Digital control; Digital signal processing; Instruments; Magnetic resonance; Power generation; Power supplies; Switching converters; Voltage;
Conference_Titel :
Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on
Print_ISBN :
0-7803-7233-6
DOI :
10.1109/PEDS.2001.975372
