Full bridge LLC series resonant converter for X-Ray high voltage DC power supply |
| |
| Authors: | TANG Zhi de ZHANG Zheng mao YANG Hong YANG Bing and SHU Zhi qiang |
| |
| Institution: | State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University, Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University, Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University, Chongqing 400044, P.R.China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University, Chongqing 400044, P.R.China;Nanjing Jasons Medical Systems Ltd., Nanjing 210012, P.R.China |
| |
| Abstract: | To prevent the duty cycle loss of full-bridge converter controlled by the phase-shifting method, a high frequency high voltage X-ray power supply is proposed. It combines full bridge LLC(FB-LLC) series resonant converter with bipolar single-phase symmetrical voltage multiplier. FB-LLC series resonant, high voltage transformer and bipolar single-phase symmetrical voltage multiplier are used in the main circuit. The LLC series resonant circuit and working conditions of soft switch are analyzed. The fundamental harmonic approximation model is established. The parameters of the main circuit are designed. The simulation results show that the output voltage adjusted continuously within 40~120 kV and without duty cycle loss. The X-ray power supply is proposed to achieve a quick rise and low ripple of output voltage. According to the simulation results, the proposed topology is correct and reliable. |
| |
| Keywords: | LLC series resonant zero voltage switching voltage multiplier X-ray power supply HVDC |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
| 点击此处可从《保鲜与加工》下载免费的PDF全文 |
|
