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Furthermore, a new capacitor lifetime monitoring technique is proposed, which employs this signal for calculating equivalent series resistance of the capacitor.
As a result, low ripple output current is still achieved even when the size of the DC-link capacitor is reduced, which allows the film capacitor to be used to replace the conventional unreliable electrolytic capacitor.
The results show clearly that when the capacitor lead length approaches 1, even a relatively large capacitor value has little effect.
Also, another capacitor with large capacitance plays an important role as a smoothing capacitor to improve the output crest factor.
Proceedings ArticleDOI
Bang-Sup Song, Tompsett 
01 Jan 1988
18 Citations
Errors in switched-capacitor pipelined converters arise from capacitor mismatch.
Thus, as the storage capacitor, film capacitor will be more appropriate than electrolytic capacitor for a long lifetime LED driver.
Further, a strong correlation is demonstrated between capacitor measurement results and noncontact oxide stress-induced-leakage-current, measurements that do not require capacitor fabrication.
This work presents evidence of how some of these models do not comply with the characteristics set provided by the manufacturer or, in some cases; they replicate only the behavior of the normal capacitor.
Finally, the comparisons between reference and designed model illustrate that the proposed algorithm can provide insight into the design of high-performance capacitor-run SPIMs.

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