FR2490895B1 - MAINTENANCE CIRCUIT FOR LOW CURRENT OSCILLATOR - Google Patents

MAINTENANCE CIRCUIT FOR LOW CURRENT OSCILLATOR

Info

Publication number
FR2490895B1
FR2490895B1 FR8117445A FR8117445A FR2490895B1 FR 2490895 B1 FR2490895 B1 FR 2490895B1 FR 8117445 A FR8117445 A FR 8117445A FR 8117445 A FR8117445 A FR 8117445A FR 2490895 B1 FR2490895 B1 FR 2490895B1
Authority
FR
France
Prior art keywords
transistor
control electrode
low current
maintenance circuit
current oscillator
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
FR8117445A
Other languages
French (fr)
Other versions
FR2490895A1 (en
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.)
Ebauches Electroniques SA
Original Assignee
Ebauches Electroniques 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 date
Application filed by Ebauches Electroniques SA filed Critical Ebauches Electroniques SA
Publication of FR2490895A1 publication Critical patent/FR2490895A1/en
Application granted granted Critical
Publication of FR2490895B1 publication Critical patent/FR2490895B1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators

Abstract

The oscillator circuit comprises an active amplifier transistor 1 which is supplied by a current source comprising a second active amplifier transistor 13 whose control electrode 13a is connected to the control electrode 1b of the first transistor by way of capacitive decoupling means 22, 23. The first and second transistors 1, 13 are of opposite conductivity types. Bias circuits 4, 14 apply to the control electrode of the second transistor a control signal 13a which contains the oscillation signal VA which is superimposed on a d.c. voltage which depends on the amplitude of the oscillation signal. This circuit can be used in particular for the time bases of electronic watches.
FR8117445A 1980-09-19 1981-09-14 MAINTENANCE CIRCUIT FOR LOW CURRENT OSCILLATOR Expired FR2490895B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH705880A CH641316B (en) 1980-09-19 1980-09-19 LOW CURRENT CONSUMPTION OSCILLATOR CIRCUIT.

Publications (2)

Publication Number Publication Date
FR2490895A1 FR2490895A1 (en) 1982-03-26
FR2490895B1 true FR2490895B1 (en) 1985-11-29

Family

ID=4319268

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8117445A Expired FR2490895B1 (en) 1980-09-19 1981-09-14 MAINTENANCE CIRCUIT FOR LOW CURRENT OSCILLATOR

Country Status (5)

Country Link
JP (1) JPS5783904A (en)
CH (1) CH641316B (en)
DE (1) DE3136300A1 (en)
FR (1) FR2490895B1 (en)
GB (1) GB2084421B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3223338A1 (en) * 1982-06-23 1984-01-05 Eurosil GmbH, 8057 Eching Integrated field effect transistor oscillator circuit
FR2542526A1 (en) 1983-03-09 1984-09-14 American Telephone & Telegraph QUARTZ OSCILLATOR
JPS63171782U (en) * 1987-04-30 1988-11-08
DE3831176A1 (en) * 1988-09-13 1990-03-22 Siemens Ag Oscillator cell
EP0574981B1 (en) * 1992-06-15 1998-09-02 Koninklijke Philips Electronics N.V. Oscillator circuit having 50% duty cycle
JP4598992B2 (en) * 2001-06-01 2010-12-15 シチズンホールディングス株式会社 Crystal oscillation circuit
EP1432119A1 (en) * 2002-12-17 2004-06-23 Dialog Semiconductor GmbH High quality serial resonance oscillator
JP4261241B2 (en) 2003-04-11 2009-04-30 株式会社コガネイ Pressurizing device
DE102007016522B4 (en) * 2007-04-05 2013-06-27 Texas Instruments Deutschland Gmbh Crystal oscillator circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH15826A (en) * 1897-12-30 1898-08-15 Friedrich Hutter Competition carousel
CH893373A4 (en) * 1973-06-20 1977-06-15
CH450474A4 (en) * 1974-04-01 1976-02-27
CH594317A5 (en) * 1976-06-28 1978-01-13 Ebauches Sa
JPS54956A (en) * 1977-06-06 1979-01-06 Sony Corp Vco
CH623450GA3 (en) * 1977-12-20 1981-06-15 Quartz oscillator with low current consumption for timepiece
JPS55109003A (en) * 1979-02-16 1980-08-21 Citizen Watch Co Ltd Oscillation circuit

Also Published As

Publication number Publication date
CH641316B (en)
JPS5783904A (en) 1982-05-26
GB2084421A (en) 1982-04-07
GB2084421B (en) 1984-07-11
DE3136300C2 (en) 1988-09-08
CH641316GA3 (en) 1984-02-29
JPS6234281B2 (en) 1987-07-25
FR2490895A1 (en) 1982-03-26
DE3136300A1 (en) 1982-04-29

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