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ji yu pwm de zheng xian bo diao guang ji shu zai dian shi yan bo shi de ying yong
Author(s): 
Pages: 64-67
Year: Issue:  6
Journal: Radio & TV Broadcast Engineering

Keyword:  双向可控硅绝缘栅双极晶体管脉冲宽度调制正弦波调光;
Abstract: 传统电视演播室使用的可控硅斩波调光技术存在不少问题.正弦波调光是一种脉宽调制调光技术,通过滤波器滤除谐波,可以减少传统可控硅调光斩波产生的噪声和射频干扰.本文分析了基于脉宽调制的正弦波调光技术的工作原理及其在电视演播室应用方面的先进性.
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