GB941863A - Electrical time delay circuit - Google Patents

Electrical time delay circuit

Info

Publication number
GB941863A
GB941863A GB18887/62A GB1888762A GB941863A GB 941863 A GB941863 A GB 941863A GB 18887/62 A GB18887/62 A GB 18887/62A GB 1888762 A GB1888762 A GB 1888762A GB 941863 A GB941863 A GB 941863A
Authority
GB
United Kingdom
Prior art keywords
capacitor
transistor
conductive
coil
battery
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
GB18887/62A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB941863A publication Critical patent/GB941863A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/284—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator monostable
    • 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
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14—Ribbon-feed devices or mechanisms
    • B41J33/34—Ribbon-feed devices or mechanisms driven by motors independently of the machine as a whole
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
    • 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
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
    • H03K2017/226—Modifications for ensuring a predetermined initial state when the supply voltage has been applied in bipolar transistor switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Dc-Dc Converters (AREA)
  • Electronic Switches (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

941,863. Charging and discharging capacitors; electromagnetic clutches. NATIONAL CASH REGISTER CO. May 16, 1962 [June 29, 1961,] No. 18887/62. Heading H2H. A circuit for energizing a clutch coil 69 for a period of, say, 1 second in response to an input signal 31, 36 of, say, 10 millisecs. duration, comprises a transistor 10 blocked by an input signal rendering a transistor 14 conductive, which charges a capacitor 55 in the 10 millisec. time from the positive potential of a battery 57 to the negative potential of a battery 54. The maximum capacitor charge may be limited substantially to the breakdown voltage of a diode 49. The negative capacitor charge renders transistors 18, 22 non-conductive and a transistor 26 conductive which energizes the coil 69 for 1 second while the capacitor discharges. If another signal 31, 36 appears before the capacitor has discharged, the 1 second operating time begins again. A discharge diode 71 is shunted across the coil 69.
GB18887/62A 1961-06-29 1962-05-16 Electrical time delay circuit Expired GB941863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US120704A US3109125A (en) 1961-06-29 1961-06-29 Electrical control circuit

Publications (1)

Publication Number Publication Date
GB941863A true GB941863A (en) 1963-11-13

Family

ID=22392043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18887/62A Expired GB941863A (en) 1961-06-29 1962-05-16 Electrical time delay circuit

Country Status (3)

Country Link
US (1) US3109125A (en)
DE (1) DE1249976B (en)
GB (1) GB941863A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151545A (en) * 1962-11-01 1964-10-06 Burroughs Corp Regenerative pulse switching and current driver circuit
CN113168444A (en) 2018-12-03 2021-07-23 惠普发展公司，有限责任合伙企业 Logic circuit system
EP3682359B1 (en) 2018-12-03 2021-01-06 Hewlett-Packard Development Company, L.P. Logic circuitry
US11338586B2 (en) 2018-12-03 2022-05-24 Hewlett-Packard Development Company, L.P. Logic circuitry
EP3681723B1 (en) 2018-12-03 2021-07-28 Hewlett-Packard Development Company, L.P. Logic circuitry
BR112021010563A2 (en) 2018-12-03 2021-08-24 Hewlett-Packard Development Company, L.P. logic circuits
ES2902154T3 (en) * 2018-12-03 2022-03-25 Hewlett Packard Development Co logic circuits
CA3121459A1 (en) 2018-12-03 2020-06-11 Hewlett-Packard Development Company, L.P. Logic circuitry package
AU2018452256B2 (en) 2018-12-03 2022-09-08 Hewlett-Packard Development Company, L.P. Logic circuitry

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970228A (en) * 1958-03-13 1961-01-31 Westinghouse Electric Corp Timing circuit
US2958017A (en) * 1958-10-22 1960-10-25 Collins Radio Co Fast attack slow release relay circuit
BE620605A (en) * 1961-03-07

Also Published As

Publication number Publication date
DE1249976B (en) 1967-09-14
US3109125A (en) 1963-10-29

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