GROUND/VOLTAGE OPEN INPUT

An input circuit includes an input line (102) for providing input regarding state of a load (104). A first impedance (106) is connected to the input line at a first node (108) for connecting a voltage source to the input line. A second impedance (110) is connected to the input line at a second node...

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Bibliographische Detailangaben
Hauptverfasser:	FOX, Brennan, HOEGBERG, Lon R
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PULSE TECHNIQUE
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	An input circuit includes an input line (102) for providing input regarding state of a load (104). A first impedance (106) is connected to the input line at a first node (108) for connecting a voltage source to the input line. A second impedance (110) is connected to the input line at a second node (112) for connecting the input line to ground. A Zener diode (116) is connected in the input line in series between the first and second nodes to impede current flowing through the Zener diode below the Zener voltage thereof in a direction from the first node to the second node, and to allow current above the Zener voltage thereof in the direction from the first node to the second node.