GB1287165A - Circuit arrangement for rhythmic selective operation of separate magnets of a group - Google Patents

Circuit arrangement for rhythmic selective operation of separate magnets of a group

Info

Publication number
GB1287165A
GB1287165A GB20868/70A GB2086870A GB1287165A GB 1287165 A GB1287165 A GB 1287165A GB 20868/70 A GB20868/70 A GB 20868/70A GB 2086870 A GB2086870 A GB 2086870A GB 1287165 A GB1287165 A GB 1287165A
Authority
GB
United Kingdom
Prior art keywords
magnets
circuit
selective operation
rhythmic
group
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
GB20868/70A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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
Priority claimed from DE19691922752 external-priority patent/DE1922752C/en
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1287165A publication Critical patent/GB1287165A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/18—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of receivers
    • H04L13/182—Printing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/44—Control for hammer-impression mechanisms
    • B41J9/50—Control for hammer-impression mechanisms for compensating for the variations of printer drive conditions, e.g. for compensating for the variation of temperature or current supply
    • 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
    • H03K17/64—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 having inductive loads
    • 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
    • H03K17/72—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 having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • 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
    • H03K17/72—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 having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—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 having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents
    • 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
    • H03K17/72—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 having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/735—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Impact Printers (AREA)

Abstract

1287165 Selective operation of electromagnets PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 April 1970 [3 May 1969 6 May 1969] 20868/70. Heading H3T [Also in Division G4] Magnets 5<SP>1</SP>, for example of the column of punches of a mosaic type printer, are selected by triggerable semi-conductor switches 5 and energization is controlled, e.g. via amplifier and switch circuit 3, 4, by a monostable circuit 1<SP>1</SP>, 1<SP>11</SP> having a timing resistor 7 connected to the energizing supply for the magnets so that if the supply voltage decreases due for example to an increase in the number of magnets in use over a period of time, the duration of energization is increased. More uniform printing is thus obtained. Further uniformity is provided if the timing circuit also includes a transistor 10 controlled by a summing circuit 10 providing a voltage indicating the number of magnets being selected.
GB20868/70A 1969-05-03 1970-04-30 Circuit arrangement for rhythmic selective operation of separate magnets of a group Expired GB1287165A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691922752 DE1922752C (en) 1969-05-03 Circuit arrangement for a uniform supply of energy to individual magnets which are suddenly acted upon by DC voltage
DE19691923037 DE1923037B2 (en) 1969-05-03 1969-05-06 CIRCUIT ARRANGEMENT FOR IMPACT OPERATION OF SINGLE MAGNETS IN A GROUP

Publications (1)

Publication Number Publication Date
GB1287165A true GB1287165A (en) 1972-08-31

Family

ID=25757359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20868/70A Expired GB1287165A (en) 1969-05-03 1970-04-30 Circuit arrangement for rhythmic selective operation of separate magnets of a group

Country Status (4)

Country Link
US (1) US3789272A (en)
DE (1) DE1923037B2 (en)
FR (1) FR2047151A5 (en)
GB (1) GB1287165A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635398C2 (en) * 1976-08-06 1982-10-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Method and arrangement for controlling the printing magnets of a matrix printer
US4162131A (en) * 1977-11-02 1979-07-24 General Electric Company Drive circuit for printing head
US4204777A (en) * 1978-01-16 1980-05-27 Ncr Corporation Matrix printer control system
US4227230A (en) * 1978-09-19 1980-10-07 Texas Instruments Incorporated Switch mode driver
US4293888A (en) * 1979-06-25 1981-10-06 International Business Machines Corporation Print hammer drive circuit with compensation for voltage variation
US4280404A (en) * 1979-10-03 1981-07-28 Printronix, Inc. Printer having variable hammer release drive
US4381532A (en) * 1981-06-18 1983-04-26 International Business Machines Corporation Constant energy drive circuit for electromagnetic print hammers
US5204802A (en) * 1988-11-23 1993-04-20 Datacard Corporation Method and apparatus for driving and controlling an improved solenoid impact printer
US5413423A (en) * 1994-03-22 1995-05-09 Veri Fone Inc. Print element drive control with constant current charge and discharge of capacitor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170140A (en) * 1956-12-31 1965-02-16 Brucker-Steinkuhl Kurt Control apparatus
US3056906A (en) * 1959-12-28 1962-10-02 Sylvania Electric Prod Switching circuit
US3093303A (en) * 1962-01-18 1963-06-11 Dirks Gerhard Tape perforation and movement control system
US3519893A (en) * 1967-09-29 1970-07-07 Potter Instrument Co Inc Circuit for energizing electromagnetic operated hammers in a high speed impact printer
US3423641A (en) * 1968-03-07 1969-01-21 Ibm Hammer firing circuit for impact printers

Also Published As

Publication number Publication date
US3789272A (en) 1974-01-29
FR2047151A5 (en) 1971-03-12
DE1923037A1 (en) 1970-11-26
DE1923037B2 (en) 1972-01-27
DE1922752B2 (en) 1972-08-03
DE1922752A1 (en) 1970-11-19

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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