Electromagnetic valve driver

An electromagnetic valve driver includes: an electric power feeder configured to apply a power voltage obtained by switching a battery voltage to one end of an electromagnetic coil of an electromagnetic valve; a detector configured to detect a drive current flowing through the electromagnetic coil;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Ogawa, Atsushi, Kato, Motoaki, Nomura, Kengo
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	An electromagnetic valve driver includes: an electric power feeder configured to apply a power voltage obtained by switching a battery voltage to one end of an electromagnetic coil of an electromagnetic valve; a detector configured to detect a drive current flowing through the electromagnetic coil; and a power supply configured to supply power to the detector. The electric power feeder adjusts the drive current by operating in a state in which the power voltage is applied to the electromagnetic coil on the basis of a detection value of the detector. The power supply supplies the power obtained by sampling and holding a reference power in a period excluding a switching period of the battery voltage in the electric power feeder to the detector.