GB1133180A - Constant voltage circuit - Google Patents

Constant voltage circuit

Info

Publication number
GB1133180A
GB1133180A GB40633/67A GB4063367A GB1133180A GB 1133180 A GB1133180 A GB 1133180A GB 40633/67 A GB40633/67 A GB 40633/67A GB 4063367 A GB4063367 A GB 4063367A GB 1133180 A GB1133180 A GB 1133180A
Authority
GB
United Kingdom
Prior art keywords
voltage
electrode
regulator
roller
contact
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
GB40633/67A
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 GB1133180A publication Critical patent/GB1133180A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/613—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in parallel with the load as final control devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/06—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Conveying Record Carriers (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

1,133,180. Automatic voltage control. INTERNATIONAL BUSINESS MACHINES CORP. Sept. 6, 1967 [Sept.26, 1966], No.40633/67. Heading G3R. A constant voltage circuit comprises an electrode 11 adapted to be contacted by a variable number of contact members 10 so as to supply a voltage to a variable number of external circuits, a current source 25 for said electrode, and a voltage regulator 15 which controls the output of the source 25 in dependence upon variations in the voltage on electrode 11 as detected by a device such as a brush 16, whereby the voltage on electrode 11 is maintained constant independently of the number of external circuits to which it supplies a voltage. As shown, the electrode 11 is the contact roller of a data reading machine and the contact members 10 are brushes which contact the roller, and thus transmit data to data storage 12, when sensing perforations 6 in a record card 5 which passes between the brushes 10 and the roller 11. The regulator 15 is rendered active by a device 13 only during the time when a row of sensing positions is being read. The device 13, the regulator 15 and the current source 25 may include transistors, a suitable circuit arrangement being described with reference to Fig. 2 (not shown).
GB40633/67A 1966-09-26 1967-09-06 Constant voltage circuit Expired GB1133180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58191766A 1966-09-26 1966-09-26

Publications (1)

Publication Number Publication Date
GB1133180A true GB1133180A (en) 1968-11-13

Family

ID=24327091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40633/67A Expired GB1133180A (en) 1966-09-26 1967-09-06 Constant voltage circuit

Country Status (8)

Country Link
US (1) US3452185A (en)
AT (1) AT270273B (en)
CH (1) CH464581A (en)
DE (1) DE1549779C2 (en)
FR (1) FR1538073A (en)
GB (1) GB1133180A (en)
NL (1) NL149307B (en)
SE (1) SE318139B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9327912B2 (en) * 2014-03-07 2016-05-03 Lucien J Wroblewski Spring separator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890139C (en) * 1940-12-14 1953-09-17 Ibm Deutschland Sensing device for machines controlled by punch cards
US2994476A (en) * 1956-11-15 1961-08-01 Rca Corp Perforation sensing circuit
DE1069410B (en) * 1957-01-09 1959-11-19 Olympia Werke A.G., Wilhelmshaven Device for scanning punch cards
US3031608A (en) * 1958-07-28 1962-04-24 Eschen Robert L Von Voltage regulator
US3104292A (en) * 1959-06-15 1963-09-17 Holzer Walter Fully automatic washing machines
US3174094A (en) * 1962-02-01 1965-03-16 Hughes Aircraft Co High efficiency power supply utilizing a negative resistance device
US3247363A (en) * 1962-03-28 1966-04-19 Rca Corp Electrical circuit
US3218542A (en) * 1962-06-25 1965-11-16 Collins Radio Co Electronic circuit protector

Also Published As

Publication number Publication date
DE1549779B1 (en) 1973-05-17
SE318139B (en) 1969-12-01
CH464581A (en) 1968-10-31
NL6711074A (en) 1968-03-27
US3452185A (en) 1969-06-24
NL149307B (en) 1976-04-15
FR1538073A (en) 1968-08-30
AT270273B (en) 1969-04-25
DE1549779C2 (en) 1974-02-14

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