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发明名称
能降压供电的列车逆变电源
摘要
本实用新型提供了一种改进的列车闭路电视系统的列车逆变电源,该电源的特点是对适应电压较宽的电视机能够实行降压供电,使电源负荷接近电视机的标称耗电量,即使电源中稳压电路失控时供电电压也不超过250伏。在该电源内的220伏绕组中有一个降压抽头,通过输出电压转换装置可以转换到由该抽头供电,即实行降压供电,降压供电的电压值在方波时为150伏、正弦波时为110伏。
申请公布号
CN85205567U
申请公布日期
1986.09.17
申请号
CN85205567
申请日期
1985.12.28
申请人
姚永源
发明人
姚永源
分类号
H02M7/44;H02P13/06
主分类号
H02M7/44
代理机构
代理人
主权项
1、用于列车闭路电视系统的列车逆变电源装置,该装置中的输出变压器[1]上有220伏电压绕组[2],该装置的外部有输出电压接线端[4],其特征是该装置中有输出电压转换装置[3],在220伏电压绕组[2]上有降压抽头[6],通过转换输出电压转换装置[3]能实行降压供电。
地址
北京市朝阳区酒仙桥十四街坊一排79-6号
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