Power control circuit

Power control circuit 6 of a loop-mountable unit of a fire alarm system, comprises adjustable current source 12, inverting amplifier 13, and damper 14. The damper may have an input for connection to a loop and an output connected to the inverting input of the inverting amplifier such that the voltag...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Steven Ian Bennett, Paul W Cottrell
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS CONTROLLING ORDER TELEGRAPHS PHYSICS REGULATING SIGNALLING SIGNALLING OR CALLING SYSTEMS SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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