EARLY POWER FAILURE DETECTION CIRCUIT

Early power failure (EPF) detection circuit applies a rectified, unfiltered periodic waveform, at the frequency of the mains supply voltage to a threshold detector. During each cycle of the periodic waveform, the threshold detector produces a pulse voltage having a leading edge when the periodic wav...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TESTIN WILLIAM JOHN, WITTMAN BRIAN ALBERT
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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