医疗卫生装备2017，Vol.38Issue(10)：33-35,3.DOI:10.7687/j.issn1003-8868.2017.10.033
传统X线机稳压器的改进
Improvement of voltage regulator for traditional X-ray machine
摘要
Abstract
Objective To improve the voltage regulator for the traditional X-ray machine to provide heating voltage and current to X-ray tube filament heating circuit.Methods The circuits included the ones for regulator output voltage sampling,desired voltage generation,control voltage generation,synchronous pulse triangular signal generation,phase control,siliconcontrolled rectifier (SCR) and regulator input voltage sampling.Negative feedback control was executed by the sampling,detection and comparison of the regulator output voltage,and the comparison was carried out with the synchronous pulse triangular signal to generate the signal for controlling SCR.The regulator output voltage was kept stable by regulating the modes of SCR conduction angle.Results Installing and debugging of designed circuit for domestic power frequency X-ray machine contributed to realizing voltage regulation for the filament heating circuit.The test also measured voltage waveform distortion in AC circuits,and this kind of adverse effect did not affect the filament heating circuit.Conclusion The improved system has small volume,low heat,little noise and high performance,which can replace the traditional MSVR.关键词
磁饱和稳压器/电路/X线机/可控硅/导通角Key words
magnetic saturation voltage regulator/circuit/X-ray machine/SCR/conduction angle分类
医药卫生引用本文复制引用
刘敬涛,杨武成,李永生,于泽晨,田家新,朱险峰..传统X线机稳压器的改进[J].医疗卫生装备,2017,38(10):33-35,3.基金项目
黑龙江省大学生创新创业训练计划项目(201510229002) （201510229002）
