论文部分内容阅读
对北广TVU233型300W全固态电视发射机遥控系统所使用相对独立的24V2A直流开关电源的结构特点、工作原理进行了详尽解剖与分析,重点介绍以TOP227Y为核心器件的脉宽调制开关电源的工作原理,总结了所发生故障的原因与维修排除过程,提供了开关电源正常工作时的典型数据,为今后快速维修排除该电源的其它各类故障提供相应的技术借鉴,以确保发射机的安全运行和系统可靠性。
The structure and working principle of relatively independent 24V2A DC switching power supply used by BeiGuang TVU233 300W all-solid-state TV transmitter remote control system are analyzed and analyzed in detail. The work of pulse-width modulation switching power supply with TOP227Y as the core device is mainly introduced Principle, summarizes the reasons for the failure occurred and the maintenance of the elimination process, provides a typical working hours of switching power supply data for the future rapid repair of other types of failure to exclude the power supply to provide appropriate technical reference to ensure the safe operation of the transmitter And system reliability.