GB1432895A - Driver circuit with inductive load - Google Patents

Driver circuit with inductive load

Info

Publication number
GB1432895A
GB1432895A GB807074A GB807074A GB1432895A GB 1432895 A GB1432895 A GB 1432895A GB 807074 A GB807074 A GB 807074A GB 807074 A GB807074 A GB 807074A GB 1432895 A GB1432895 A GB 1432895A
Authority
GB
United Kingdom
Prior art keywords
current
load
coil
turns
switch
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
GB807074A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1432895A publication Critical patent/GB1432895A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/1883—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings by steepening leading and trailing edges of magnetisation pulse, e.g. printer drivers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/10—Nuclear fusion reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Impact Printers (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

1432895 Driver circuit INTERNATIONAL BUSINESS MACHINES CORP 22 Feb 1974 [16 March 1973] 8070/74 Heading H3T A driver circuit with an inductive load 10, e.g. for use in a print and punch actuator of a computer system, comprises a series connection of a first switch T 1 , an inductive load 10 and a second switch between a pair of supply terminals, an auxiliary circuit D 1 , D 2 coupled to the load 10 and an arrangement 20-30 for controlling the operation of switches T 1 , T 2 so that if the switches T 1 , T 2 are closed current flows through the load and if the switch Ti is subsequently opened, current through the load decays relatively slowly and if the second switch T 2 is subsequently opened, the load current decays relatively quickly. In operation, an input control pulse at 15 turns on T 1 via a single shot device 25 and a predriver 36 and T 2 turns on simultaneously via a predriver 20 so that current in coil 10 builds up. T 1 turns off at the end of the single shot period so that the coil current decays slowly via the now-conducting diode D 1 . T 2 turns off at the end of the input control pulse as to render a diode D 2 conducting and the current in coil 10 is reversed and decays quickly via D 2 . The current in coil 10 can be maintained over a long period by multiple single slot devices or delay circuits or by adding an inductance in series with the coil.
GB807074A 1973-03-16 1974-02-22 Driver circuit with inductive load Expired GB1432895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US342109A US3859572A (en) 1973-03-16 1973-03-16 Magnetic coil driver circuit

Publications (1)

Publication Number Publication Date
GB1432895A true GB1432895A (en) 1976-04-22

Family

ID=23340365

Family Applications (1)

Application Number Title Priority Date Filing Date
GB807074A Expired GB1432895A (en) 1973-03-16 1974-02-22 Driver circuit with inductive load

Country Status (7)

Country Link
US (1) US3859572A (en)
JP (1) JPS5327098B2 (en)
CA (1) CA1010947A (en)
DE (1) DE2412016A1 (en)
FR (1) FR2221762B1 (en)
GB (1) GB1432895A (en)
IT (1) IT1003393B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145584A (en) * 1981-10-26 1985-03-27 Nat Res Dev Electrically energised vibratory conveyors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1001996B (en) * 1973-11-28 1976-04-30 Organizzazione Servizi Calcest CONCRETE INCORPORATING FULL BODIES OR SPHERICAL CABLE CABLE GLASS SPHERICAL
DE2915317A1 (en) * 1979-04-14 1980-10-23 Binder Magnete CIRCUIT FOR CONTROLLING A PULSE MAGNET
DE3151242C2 (en) * 1981-12-21 1985-05-02 Mannesmann AG, 4000 Düsseldorf Driver circuit for printers, in particular for matrix printers of the needle or hammer type
JPS60193668A (en) * 1984-03-16 1985-10-02 Fujitsu Ltd Hammer controlling system
US4667117A (en) * 1984-10-31 1987-05-19 International Business Machines Corporation Self-timing and self-compensating print wire actuator driver
JPS6149856A (en) * 1985-06-24 1986-03-11 Ricoh Co Ltd Magnet drive circuit for printer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206651A (en) * 1961-11-30 1965-09-14 Honeywell Inc Circuit controlling flow of current

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145584A (en) * 1981-10-26 1985-03-27 Nat Res Dev Electrically energised vibratory conveyors

Also Published As

Publication number Publication date
FR2221762B1 (en) 1976-12-03
IT1003393B (en) 1976-06-10
JPS49123232A (en) 1974-11-26
DE2412016A1 (en) 1974-09-19
JPS5327098B2 (en) 1978-08-05
FR2221762A1 (en) 1974-10-11
CA1010947A (en) 1977-05-24
US3859572A (en) 1975-01-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee