CH631596B - FREQUENCY DIVIDER CIRCUIT. - Google Patents

FREQUENCY DIVIDER CIRCUIT.

Info

Publication number
CH631596B
CH631596B CH618379A CH618379A CH631596B CH 631596 B CH631596 B CH 631596B CH 618379 A CH618379 A CH 618379A CH 618379 A CH618379 A CH 618379A CH 631596 B CH631596 B CH 631596B
Authority
CH
Switzerland
Prior art keywords
frequency
transistors
capacitor
frequency divider
signal
Prior art date
Application number
CH618379A
Other languages
French (fr)
Other versions
CH631596GA3 (en
Inventor
Jakob Luescher
Original Assignee
Ebauches Sa
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 of CH631596B publication Critical patent/CH631596B/en
Application filed by Ebauches Sa filed Critical Ebauches Sa
Publication of CH631596GA3 publication Critical patent/CH631596GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/025—Circuits for deriving low frequency timing pulses from pulses of higher frequency by storing time-date which are periodically investigated and modified accordingly, e.g. by using cyclic shift-registers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/18—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages
    • G11C19/182—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages in combination with semiconductor elements, e.g. bipolar transistors, diodes
    • G11C19/184—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages in combination with semiconductor elements, e.g. bipolar transistors, diodes with field-effect transistors, e.g. MOS-FET
    • G11C19/186—Digital stores in which the information is moved stepwise, e.g. shift registers using capacitors as main elements of the stages in combination with semiconductor elements, e.g. bipolar transistors, diodes with field-effect transistors, e.g. MOS-FET using only one transistor per capacitor, e.g. bucket brigade shift register
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/08—Output circuits
    • H03K21/10—Output circuits comprising logic circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/40—Gating or clocking signals applied to all stages, i.e. synchronous counters
    • H03K23/42—Out-of-phase gating or clocking signals applied to counter stages
    • H03K23/46—Out-of-phase gating or clocking signals applied to counter stages using charge transfer devices, i.e. bucket brigade or charge coupled devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Manipulation Of Pulses (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Soil Working Implements (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

The frequency divider allows division of the frequency of two signals in phase opposition 01(t) and 02(t). A shift register 10 comprises an assembly of transistors and capacitors which form a plurality of cells connected one after the other, each cell being constituted by two identical stages T1T1' and T2T2' which are connected in series and are supplied respectively by the periodic signals. Means for detecting particular states of the register comprise the MOS transistor T8, T9, and T10. Means for producing a signal with a frequency which is a sub- multiple of that of the said periodic signals comprise the transistors T11 and T12, the transistor T13, the capacitor C7 and the capacitor C9. The divider is especially suitable for use in quartz oscillator watches. T13 normally conducts thus grounding the output point g, only when b, d, f are all high is T13 turned off and signal x, via C7, connected both to the output and to the shift register input to recirculate a charge packet. <IMAGE>
CH618379A 1978-07-06 1979-07-03 FREQUENCY DIVIDER CIRCUIT. CH631596B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820164A FR2430696A1 (en) 1978-07-06 1978-07-06 INTEGRATED FREQUENCY DIVIDER

Publications (2)

Publication Number Publication Date
CH631596B true CH631596B (en)
CH631596GA3 CH631596GA3 (en) 1982-08-31

Family

ID=9210405

Family Applications (1)

Application Number Title Priority Date Filing Date
CH618379A CH631596B (en) 1978-07-06 1979-07-03 FREQUENCY DIVIDER CIRCUIT.

Country Status (5)

Country Link
JP (1) JPS607860B2 (en)
CH (1) CH631596B (en)
DE (1) DE2921511C2 (en)
FR (1) FR2430696A1 (en)
GB (1) GB2025182B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006346328A (en) * 2005-06-20 2006-12-28 Hikari:Kk Scissors

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599010A (en) * 1967-11-13 1971-08-10 Texas Instruments Inc High speed, low power, dynamic shift register with synchronous logic gates
US3643106A (en) * 1970-09-14 1972-02-15 Hughes Aircraft Co Analog shift register
US3683193A (en) * 1970-10-26 1972-08-08 Rca Corp Bucket brigade scanning of sensor array
US3763480A (en) * 1971-10-12 1973-10-02 Rca Corp Digital and analog data handling devices
CH558111A (en) * 1972-07-21 1975-01-15 Battelle Memorial Institute CIRCUIT GENERATEUR DE SIGNAUX COMPRENANT UN OSCILLATEUR A QUARTZ DELIVRANT DES SIGNAUX PERIODIQUES BIPHASES ET UN DEMULTIPLICATEUR DE LA FREQUENCE DE CES SIGNAUX.
US3812520A (en) * 1972-08-24 1974-05-21 Gen Instrument Corp Parasitic transistor shift register
US3973139A (en) * 1973-05-23 1976-08-03 Rca Corporation Low power counting circuits
CA1049653A (en) * 1974-05-16 1979-02-27 Robert H. Walden Charge transfer binary counter
US4038565A (en) * 1974-10-03 1977-07-26 Ramasesha Bharat Frequency divider using a charged coupled device
DE2629750A1 (en) * 1976-07-02 1978-01-05 Deutsche Bundespost Multistage frequency pulse divider - has shift register with NAND: gate feeding stage outputs back to input

Also Published As

Publication number Publication date
GB2025182A (en) 1980-01-16
GB2025182B (en) 1982-07-28
JPS607860B2 (en) 1985-02-27
DE2921511A1 (en) 1980-01-24
FR2430696A1 (en) 1980-02-01
JPS5537094A (en) 1980-03-14
CH631596GA3 (en) 1982-08-31
DE2921511C2 (en) 1982-04-15
FR2430696B1 (en) 1982-03-12

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