GB1389907A - Apparatus comprising a driver circuit and an electromagnetic actuator - Google Patents

Apparatus comprising a driver circuit and an electromagnetic actuator

Info

Publication number
GB1389907A
GB1389907A GB3074272A GB3074272A GB1389907A GB 1389907 A GB1389907 A GB 1389907A GB 3074272 A GB3074272 A GB 3074272A GB 3074272 A GB3074272 A GB 3074272A GB 1389907 A GB1389907 A GB 1389907A
Authority
GB
United Kingdom
Prior art keywords
actuator
operate
demagnetize
polarity
resistor
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
GB3074272A
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.)
Burlington Industries Inc
Original Assignee
Burlington Industries Inc
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 Burlington Industries Inc filed Critical Burlington Industries Inc
Publication of GB1389907A publication Critical patent/GB1389907A/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
    • H03K17/04—Modifications for accelerating switching
    • H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/0416—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/04166—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit in bipolar transistor switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1811—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current demagnetising upon switching off, removing residual magnetism
    • 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
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Braking Systems And Boosters (AREA)
  • Looms (AREA)

Abstract

1389907 Switching circuits for electromagnets BURLINGTON INDUSTRIES Inc 30 June 1972 [1 July 1971] 30742/72 Heading H3T [Also in Divisions H1 and F2] An electromagnetic actuator, e.g. a clutch or brake actuator 90, is supplied through the parallel combination of a resistor 86 and a diode 88 so that when the polarity of the supply is such that the diode conducts and by-passes the resistor, sufficient current flows to operate the actuator whereas when the supply is reversed sufficient current flows only to demagnetize the actuator. As shown "slub" and "space" clutch coils 90 and 100 of a slub yarn machine are connected in parallel in series with oppositely poled diodes. They are energized from a bridge arrangement of transistors 64, 68, 72 and 80 which are cross-coupled so that either 80 and 68 are conductive to apply one polarity of voltage across the coils to operate one actuator and demagnetize the other or 64 and 70 are conductive to operate the other actuator and demagnetize the first. A high initial operate current is provided by a capacitor 82. The circuit is also applicable to the feed and braking arrangement for a drapery cutting table.
GB3074272A 1971-07-01 1972-06-30 Apparatus comprising a driver circuit and an electromagnetic actuator Expired GB1389907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15896571A 1971-07-01 1971-07-01

Publications (1)

Publication Number Publication Date
GB1389907A true GB1389907A (en) 1975-04-09

Family

ID=22570501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3074272A Expired GB1389907A (en) 1971-07-01 1972-06-30 Apparatus comprising a driver circuit and an electromagnetic actuator

Country Status (7)

Country Link
US (1) US3736473A (en)
JP (1) JPS5124658B1 (en)
CA (1) CA953776A (en)
CH (1) CH566674A5 (en)
DE (1) DE2231715A1 (en)
FR (1) FR2144430A5 (en)
GB (1) GB1389907A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370604A (en) * 1981-06-25 1983-01-25 Honeywell Inc. Solenoid actuated servo system
JPS58121521A (en) * 1982-01-13 1983-07-19 オムロン株式会社 Electronic timer unit
DE4331849C2 (en) * 1993-09-20 1998-07-09 Deere & Co Electronic circuit of an electromagnetic clutch
DE19646052A1 (en) * 1996-11-08 1998-05-14 Bosch Gmbh Robert Method and device for controlling a consumer
DE19911863A1 (en) * 1999-03-17 2000-09-21 Philips Corp Intellectual Pty Circuit arrangement for controlling actuator for supplying electrical energy to it used in IC engine has actuator which in its first connection is connected between first current control element and first bypass element
EP1158279A1 (en) * 2000-05-22 2001-11-28 Endress + Hauser Flowtec AG Current regulating circuit of a magnetic inductive flowmeter for generating a feed current for an exciter circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424243A (en) * 1944-01-19 1947-07-22 Percival D Lowell Remote control system
US2992366A (en) * 1957-04-26 1961-07-11 Shand And Jurs Co Function control system and apparatus
US3021454A (en) * 1958-04-11 1962-02-13 Bendix Corp Control circuit for electromagnetic devices
US3064165A (en) * 1960-05-23 1962-11-13 Collins Radio Co Relay speed-up circuit
US3070732A (en) * 1961-09-19 1962-12-25 Edward C Crandall Electric control system

Also Published As

Publication number Publication date
JPS5124658B1 (en) 1976-07-26
FR2144430A5 (en) 1973-02-09
CA953776A (en) 1974-08-27
CH566674A5 (en) 1975-09-15
US3736473A (en) 1973-05-29
DE2231715A1 (en) 1973-01-18

Similar Documents

Publication Publication Date Title
GB1365397A (en) Driving circuit for energising the coil of a solenoid
GB1389907A (en) Apparatus comprising a driver circuit and an electromagnetic actuator
GB1324948A (en) Relay arrangement with delayed operation
GB1366568A (en) Driving arrangement for tape shaped record carriers
GB1135824A (en) Stationary swift
US3332639A (en) Control circuit
GB1412804A (en) Drive circuit for an inductuve device
GB1428786A (en) Actuator drive circuit
GB1042043A (en)
GB1303569A (en)
GB1078194A (en) Improvements in or relating to stop means for textile machines
GB1055884A (en) Method of and system for controlling the speed of direct-current motors
GB1107580A (en) Electromagnet arrangements for selecting the needles of a circular knitting machine
GB1018716A (en) Electric motor control systems
GB943070A (en) Electrical pulse supply unit
GB1097944A (en) Improvements in and relating to electrical control circuits
GB1117007A (en) Improvements in and relating to d.c. motor control circuits
SU429457A1 (en) TAPE MECHANISM
SU134099A1 (en) Method of elimination of overheating of electromagnet windings
GB1060011A (en) A switch-point for a conveyor for flat articles, such as letters
GB992540A (en) Relay circuit
GB951852A (en) Selective pulse feeding circuit
GB1071633A (en) Means for comparing electrical signals
US3235752A (en) Electric system for generating pulses
GB1267986A (en) Improvements in or relating to switching arrangements for inductive circuits

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees