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Condition monitoring by cross-correlation of switching-mode power supplies
Condition monitoring by cross-correlation of switching-mode power supplies
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机译:通过开关模式电源的互相关进行状态监视
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摘要
A method of monitoring an output signal of a switching-mode power supply for the presence and magnitude of the switching frequency comprises sampling the output signal at a sampling frequency above the minimum Nyquist limit to provide a succession of samples; cross-correlating a reference signal and the samples to provide cross-correlation values; and monitoring the cross-correlation values to ascertain the magnitude of a component of the output signal at or near the frequency of the reference signal.
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