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IEICE TRANSACTIONS on transactions

Momentary Power-Failure Detectors with Novel Type T-V Conversion Using SC Integrators

Ikko HARADA, Fumio UENO, Takahiro INOUE, Ichirou OOTA

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Summary :

Three types of momentary power-failure detectors are presented here. These are commonly adopting novel type time-to-voltage (T-V) conversion which is realized by using switched-capacitor (SC) integrators. They can monitor and detect power failures lasting more than one cycle of an AC power source. Then they active a signal and start to generate auxiliary pulses synchronized to the AC power frequency through the power failure time. Their operating frequency ranges are from several tens Hz to several kHz covering almost AC power source frequencies, without any adjustment. The period of the auxiliary pulses is confirmed to be very stable as experimental results.

Publication
IEICE TRANSACTIONS on transactions Vol.E73-E No.12 pp.1964-1972
Publication Date
1990/12/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on the 3rd Karuizawa Workshop on Circuits and Systems)
Category
Signal Processing

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