GB878333A - Scale of ten circuit - Google Patents

Scale of ten circuit

Info

Publication number
GB878333A
GB878333A GB65160A GB65160A GB878333A GB 878333 A GB878333 A GB 878333A GB 65160 A GB65160 A GB 65160A GB 65160 A GB65160 A GB 65160A GB 878333 A GB878333 A GB 878333A
Authority
GB
United Kingdom
Prior art keywords
circuit
quiescent
output
transistor
stage
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
GB65160A
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.)
Van Der Heem BV
Original Assignee
Van Der Heem BV
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 Van Der Heem BV filed Critical Van Der Heem BV
Publication of GB878333A publication Critical patent/GB878333A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/002—Pulse counters comprising counting chains; Frequency dividers comprising counting chains using semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers

Landscapes

  • Manipulation Of Pulses (AREA)
  • Measurement Of Radiation (AREA)

Abstract

878,333. Electronic counting-apparatus. VAN DER HEEM N.V. Jan. 7, 1960 [Feb. 7, 1959], No. 651/60. Class 106 (1). A decimal counter comprises four cascaded bi-stable circuits B1-B4, the second and fourth circuits being so coupled that the second B2 is blocked in its quiescent state as long as the fourth B4 is in its quiescent state, and the fourth circuit B4 being triggered from its quiescent to its active state by the output from the first circuit B1. The second input pulse at 1 restores B1 to normal, B1 producing an output which is ineffective at B2 because B4 is quiescent. However, this output pulse renders B4 active so that for subsequent input pulses the stages B1-B3 act as a normal binary cascade counter. The tenth input pulse turns all stages off and produces an output pulse at 2. Circuit details are shown in Fig. 3 (not shown) with a feedback from the collector of a transistor in stage B4 through a resistor 3 maintaining a transistor of stage B2 conducting as long as the transistor in stage B4 is non-conducting.
GB65160A 1959-02-07 1960-01-07 Scale of ten circuit Expired GB878333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL235875 1959-02-07

Publications (1)

Publication Number Publication Date
GB878333A true GB878333A (en) 1961-09-27

Family

ID=19751557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB65160A Expired GB878333A (en) 1959-02-07 1960-01-07 Scale of ten circuit

Country Status (4)

Country Link
DE (1) DE1146537B (en)
FR (1) FR1247140A (en)
GB (1) GB878333A (en)
NL (1) NL235875A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351778A (en) * 1964-10-08 1967-11-07 Motorola Inc Trailing edge j-k flip-flop

Also Published As

Publication number Publication date
DE1146537B (en) 1963-04-04
FR1247140A (en) 1960-11-25
NL235875A (en)

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