GB1486220A - Oscillator circuit - Google Patents

Oscillator circuit

Info

Publication number
GB1486220A
GB1486220A GB3776674A GB3776674A GB1486220A GB 1486220 A GB1486220 A GB 1486220A GB 3776674 A GB3776674 A GB 3776674A GB 3776674 A GB3776674 A GB 3776674A GB 1486220 A GB1486220 A GB 1486220A
Authority
GB
United Kingdom
Prior art keywords
inverter
oscillator
gate
aug
frequency determining
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
GB3776674A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3776674A priority Critical patent/GB1486220A/en
Priority to IE174075A priority patent/IE41787B1/en
Priority to FR7526371A priority patent/FR2283580A1/en
Publication of GB1486220A publication Critical patent/GB1486220A/en
Priority to HK23278A priority patent/HK23278A/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
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/354—Astable circuits
    • 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
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

1486220 Semi-conductor oscillator STANDARD TELEPHONES & CABLES Ltd 19 Aug 1975 [29 Aug 1974] 37766/74 Heading H3T In an oscillator with positive feedback via a frequency determining L-C network, and also with a resistive feedback loop, the amplifier comprises a CMOS gate or inverter biased to work in its linear mode. IC1a may be a NAND or NOR gate or inverter with feedback resistor R1 setting the bias for linear working; L, C1, C2, C4 form the frequency determining network; R2 and C2 may in some applications be omitted. A second similar gate or inverter 101b, preferably integrated with the first, may form an output buffer. The oscillator may be used in telephone push-button subsets.
GB3776674A 1974-08-29 1974-08-29 Oscillator circuit Expired GB1486220A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3776674A GB1486220A (en) 1974-08-29 1974-08-29 Oscillator circuit
IE174075A IE41787B1 (en) 1974-08-29 1975-08-05 Oscillator circuit
FR7526371A FR2283580A1 (en) 1974-08-29 1975-08-27 OSCILLATOR CIRCUIT INCLUDING A LOGIC CIRCUIT WITH COMPLEMENTARY CMOS TYPE TRANSISTORS
HK23278A HK23278A (en) 1974-08-29 1978-05-04 Oscillator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3776674A GB1486220A (en) 1974-08-29 1974-08-29 Oscillator circuit

Publications (1)

Publication Number Publication Date
GB1486220A true GB1486220A (en) 1977-09-21

Family

ID=10398866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3776674A Expired GB1486220A (en) 1974-08-29 1974-08-29 Oscillator circuit

Country Status (4)

Country Link
FR (1) FR2283580A1 (en)
GB (1) GB1486220A (en)
HK (1) HK23278A (en)
IE (1) IE41787B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021566A1 (en) * 1979-06-11 1981-01-07 Motorola, Inc. Start/stop oscillator having fixed starting phase
GB2202704A (en) * 1987-02-04 1988-09-28 Toshiba Kk Oscillator using active b.p. filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021566A1 (en) * 1979-06-11 1981-01-07 Motorola, Inc. Start/stop oscillator having fixed starting phase
GB2202704A (en) * 1987-02-04 1988-09-28 Toshiba Kk Oscillator using active b.p. filter
US4818952A (en) * 1987-02-04 1989-04-04 Kabushiki Kaisha Toshiba Oscillation circuit
GB2202704B (en) * 1987-02-04 1991-02-13 Toshiba Kk Oscillation circuit

Also Published As

Publication number Publication date
FR2283580A1 (en) 1976-03-26
IE41787L (en) 1976-02-29
IE41787B1 (en) 1980-03-26
FR2283580B1 (en) 1980-12-19
HK23278A (en) 1978-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee