JPS5661806A - Oscillating device - Google Patents

Oscillating device

Info

Publication number
JPS5661806A
JPS5661806A JP13712679A JP13712679A JPS5661806A JP S5661806 A JPS5661806 A JP S5661806A JP 13712679 A JP13712679 A JP 13712679A JP 13712679 A JP13712679 A JP 13712679A JP S5661806 A JPS5661806 A JP S5661806A
Authority
JP
Japan
Prior art keywords
current
deltav
terminal
resonance circuit
axi0
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.)
Granted
Application number
JP13712679A
Other languages
Japanese (ja)
Other versions
JPS6217885B2 (en
Inventor
Takuji Kadota
Hiroshi Okamoto
Yoshiaki Igarashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13712679A priority Critical patent/JPS5661806A/en
Publication of JPS5661806A publication Critical patent/JPS5661806A/en
Publication of JPS6217885B2 publication Critical patent/JPS6217885B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1209—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier having two current paths operating in a differential manner and a current source or degeneration circuit in common to both paths, e.g. a long-tailed pair.
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors

Abstract

PURPOSE:To reduce the amount of power consumption, by feeding the LC parallel resonance circuit after amplifying the output current of a differential amplifier and thus increasing the amplification factor of a current reversing amplifier to reduce the mean current of the entire circuit down to a half. CONSTITUTION:In the nonoscillation mode, the terminal 22 has the earth potential with the differential amplifiers (transistors 5 and 6) put under the balanced state, and thus the current (I0/2)A flows to the terminal 22. In this case, I0 means the current of a constant current source 7, and A is the current amplification factor of the power supply inverting amplifiers (transistors 16, 17 and 18) which is equal substantially to the ratio between the resistances 20 and 21. With an increase of DELTAV given to the terminal 22, the collector current of the transistor 3 increases by DELTAV/ 2Re (Re: value of emitter resistance. As a result, the current increase DELTAI of the parallel resonance circuit is A-times as much as DELTAV/2Re. An oscillation is given in a constant amplitude when the resonance resistance is as Rr>2Re/A, and the crest value of the resonance circuit shows AXI0. And the mean current is 1/2(AXI0), thus reducing the amount of power consumption.
JP13712679A 1979-10-24 1979-10-24 Oscillating device Granted JPS5661806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13712679A JPS5661806A (en) 1979-10-24 1979-10-24 Oscillating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13712679A JPS5661806A (en) 1979-10-24 1979-10-24 Oscillating device

Publications (2)

Publication Number Publication Date
JPS5661806A true JPS5661806A (en) 1981-05-27
JPS6217885B2 JPS6217885B2 (en) 1987-04-20

Family

ID=15191420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13712679A Granted JPS5661806A (en) 1979-10-24 1979-10-24 Oscillating device

Country Status (1)

Country Link
JP (1) JPS5661806A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513257A (en) * 1981-12-03 1985-04-23 Omron Tateisi Electronics Co. Proximity switch with oppositely polarized coils

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516451A (en) * 1974-07-04 1976-01-20 Sony Corp KAHENSHUHASUHATSUSHINKI
JPS51147156A (en) * 1975-06-12 1976-12-17 Mitsubishi Electric Corp Differential amplifier
JPS54102949A (en) * 1978-01-31 1979-08-13 Matsushita Electric Ind Co Ltd Differential detector circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516451A (en) * 1974-07-04 1976-01-20 Sony Corp KAHENSHUHASUHATSUSHINKI
JPS51147156A (en) * 1975-06-12 1976-12-17 Mitsubishi Electric Corp Differential amplifier
JPS54102949A (en) * 1978-01-31 1979-08-13 Matsushita Electric Ind Co Ltd Differential detector circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513257A (en) * 1981-12-03 1985-04-23 Omron Tateisi Electronics Co. Proximity switch with oppositely polarized coils

Also Published As

Publication number Publication date
JPS6217885B2 (en) 1987-04-20

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