| PSM 500kW短波发射机高末屏压自升自降故障分析与维护 |
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| 引用本文： | 韦小明. PSM 500kW短波发射机高末屏压自升自降故障分析与维护[J]. 山西电子技术, 2010, 0(4): 57-60 |
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| 作者姓名： | 韦小明 |
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| 作者单位： | 国家广播电影电视总局654台,新疆昌吉831200 |
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| 摘 要： | PSM短波发射机出现高末屏压自升自降故障是比较常见又很难判断处理的故障,通过对420C型500kW PSM短波发射机出现的2种高末屏压自升自降故障现象,结合发射机高末屏压产生的原理进行深入分析,同时给出了解决问题的方法,对提高发射机稳定工作提供了一种思路。
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| 关 键 词： | 脉冲阶梯调制 短波发射机 基准电压 |
Failure Analysis and Maintenance of Screen Voltage Automatic Rise/Lower for PSM 500kW Short-wave Transmitter |
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| Wei Xiao-ming. Failure Analysis and Maintenance of Screen Voltage Automatic Rise/Lower for PSM 500kW Short-wave Transmitter[J]. Shanxi Electronic Technology, 2010, 0(4): 57-60 |
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| Authors: | Wei Xiao-ming |
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| Affiliation: | Wei Xiao-ming(654 Transmitter Station,the State Administration of Radio and Television,Changji Xinjiang 831200,China) |
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| Abstract: | The failure of screen voltage automatic rise/lower in PSM 500KW short-wave transmitter is more common and difficult to be judged and solved.Combined with the principle of screen voltage caused in transmitter,this paper deeply analyzes the two kinds of screen voltage automatic rise/Lower failures caused in 420C type 500 kW PSM short-wave transmitter,also it gives the solution to the problem.A new method is provided to improve the stability of transmitter. |
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| Keywords: | pulse step modulation short-wave transmitter voltage reference |
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