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A High-precision Ripple-compensated High-voltage Switch-mode Power Supply for PMT
Author(s): 
Pages: 69-72
Year: Issue:  1
Journal: OPTOELECTRONIC TECHNOLOGY

Keyword:  光电倍增管纹波补偿电路开关电源;
Abstract: 采用一种纹波补偿电路使光电倍增管(PMT)直流高压开关电源的输出纹波幅度大大降低,同时对低频电压漂移也有很好的补偿效果.分析了基于信号交流分量反相叠加的纹波补偿工作原理,设计了纹波补偿电路.对不同频率、不同波形的纹波进行软件仿真,结果表明纹波衰减达40 dB以上,低频电压漂移降低了2个数量级.
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