EP 0361353 B1 19930428 - DIRECT CURRENT-ENERGISED CONTROL CIRCUIT FOR A SOLENOID VALVE
Title (en)
DIRECT CURRENT-ENERGISED CONTROL CIRCUIT FOR A SOLENOID VALVE
Publication
Application
Priority
DE 3832817 A 19880928
Abstract (en)
[origin: EP0361353A1] An intrinsically safe control circuit for a gas solenoid valve compares the mean value of the current flowing in a pulsed fashion through the excitation winding (4) of the valve with the desired value supplied as control direct voltage, and derives therefrom a signal which controls the pulse duty factor of the supply current pulses. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 7/18 (2006.01); H01H 47/32 (2006.01)
CPC (source: EP)
H01F 7/18 (2013.01); H01H 47/325 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0361353 A1 19900404; EP 0361353 B1 19930428; DE 3832817 A1 19900329; DE 58904194 D1 19930603
DOCDB simple family (application)
EP 89117647 A 19890925; DE 3832817 A 19880928; DE 58904194 T 19890925