GB1260054A - Actuating moving-armature electromagnets - Google Patents

Actuating moving-armature electromagnets

Info

Publication number
GB1260054A
GB1260054A GB5500569A GB5500569A GB1260054A GB 1260054 A GB1260054 A GB 1260054A GB 5500569 A GB5500569 A GB 5500569A GB 5500569 A GB5500569 A GB 5500569A GB 1260054 A GB1260054 A GB 1260054A
Authority
GB
United Kingdom
Prior art keywords
resistor
electromagnet
capacitor
electromagnets
transistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5500569A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Getriebe KG
Original Assignee
Voith Getriebe KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Getriebe KG filed Critical Voith Getriebe KG
Publication of GB1260054A publication Critical patent/GB1260054A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors

Landscapes

  • Magnetically Actuated Valves (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Relay Circuits (AREA)

Abstract

1,260,054. Change-speed control. VOITH GETRIEBE K.G. 10 Nov., 1969 [8 Nov., 1968], No. 55005/69. Heading F2D. [Also in Division H3] In a circuit for energizing a moving armature electromagnet from a D.C. supply via a protective resistor which is initially short circuited, the short circuit being removed after a delay by " switch means," the said " switch means " includes a capacitor, a resistor in series therewith, and the base/emitter of a transistor, all in parallel with the winding of the electromagnet, the transistor controlling or effecting the short circuiting of the protective resistor. In Fig. 1 (not shown) energization of either of two electromagnets (1, 2) also initiates charging of a capacitor (C1 or C2) via a resistor (RC1) and the base-emitter of a transistor which thereby conducts to energize a relay (R1) having a contact which bridges a resistor (RV1) in series with the electromagnets. The relay drops out, reinserting the resistor, when the charging current drops below the threshold level of the transistor and this is arranged to occur after the electromagnet has pulled in. As shown, electromagnets 3 ... 6, which operate hydraulic valves in a vehicle gear-box, are supplied via a common resistor RV2; gear change is effected by change over switches 16, 17 and when one of these opens the circuit of an electromagnet the resulting increase in voltage on bus-bar S2 (due to a lower drop across RV2) charges capacitor C3 via R2 and T2, turning on transistors T2, T3 and hence T4 which bridges RV2 for the required time. C3 is discharged via a diode 23. In the case of electromagnets 3 and 4 an overlap is provided, 3 being held in by current through a resistor Ru (equal to RV2) after 16 has opened and RV2 bridged, until RV2 is re-inserted. In this case also this is further delayed by connecting a second capacitor Cu across C3. A further electromagnet 7 (for reverse) may be energized concurrently with any of the others and this has its own capacitor C4 which is charged when switch 18 is closed in the manner of Fig. 1.
GB5500569A 1968-11-08 1969-11-10 Actuating moving-armature electromagnets Expired GB1260054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681807748 DE1807748A1 (en) 1968-11-08 1968-11-08 Procedure for operating solenoid valves

Publications (1)

Publication Number Publication Date
GB1260054A true GB1260054A (en) 1972-01-12

Family

ID=5712731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5500569A Expired GB1260054A (en) 1968-11-08 1969-11-10 Actuating moving-armature electromagnets

Country Status (6)

Country Link
US (1) US3614543A (en)
JP (1) JPS4814203B1 (en)
BE (1) BE741444A (en)
DE (1) DE1807748A1 (en)
FR (1) FR2022853B1 (en)
GB (1) GB1260054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177756A (en) * 1985-03-26 1987-01-28 Robert Leitch Rivers Fuel flow cut-off arrangement for a carburettor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086645A (en) * 1977-02-18 1978-04-25 Electric Power Research Institute, Inc. Repulsion coil actuator for high speed high power circuits
NL7908245A (en) * 1979-11-12 1981-06-01 Philips Nv Device for pulsed excitation of an electric motor.
DE3139724A1 (en) * 1981-10-06 1983-04-21 J. Wagner Gmbh, 7990 Friedrichshafen ELECTRICAL FEED AND CONTROL CIRCUIT FOR THE PUMP PISTON OF A SPRAY GUN
DE3267426D1 (en) * 1982-07-29 1985-12-19 Vickers Systems Gmbh Control circuit for an electromagnetically operated directional valve
US4775801A (en) * 1987-05-01 1988-10-04 Baum Mitchell H Electronic timer
JPH01203667A (en) * 1988-02-05 1989-08-16 Toyota Autom Loom Works Ltd Solenoid valve driving device in variable displacement compressor
US5012606A (en) * 1989-08-01 1991-05-07 Mcnulty Jr James F Shotgun gunlock
US7298101B2 (en) * 2005-02-28 2007-11-20 Panint Electronic Ltd. Continuously variable frequency swinging armature motor and drive
FR3065110B1 (en) * 2017-04-11 2019-04-19 Schneider Electric Industries Sas METHOD AND DEVICE FOR CONTROLLING AN ACTUATOR, AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A DEVICE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788473A (en) * 1955-11-01 1957-04-09 Rca Corp Bistable circuit
FR1220527A (en) * 1958-04-15 1960-05-25 Licentia Gmbh Device for quickly switching on and off an inductive consumer device supplied by transistors
US3114083A (en) * 1959-11-24 1963-12-10 Cons Electronics Ind Timing circuit
US3116441A (en) * 1960-02-19 1963-12-31 Itt Circuit for maintaining a load energized at decreased power following energization
US3088053A (en) * 1960-05-11 1963-04-30 Forbro Design Corp Relay control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177756A (en) * 1985-03-26 1987-01-28 Robert Leitch Rivers Fuel flow cut-off arrangement for a carburettor

Also Published As

Publication number Publication date
DE1807748A1 (en) 1970-07-02
FR2022853B1 (en) 1973-05-11
JPS4814203B1 (en) 1973-05-04
US3614543A (en) 1971-10-19
FR2022853A1 (en) 1970-08-07
BE741444A (en) 1970-04-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees