JPS5742205A - Multifrequency oscillator - Google Patents

Multifrequency oscillator

Info

Publication number
JPS5742205A
JPS5742205A JP11801880A JP11801880A JPS5742205A JP S5742205 A JPS5742205 A JP S5742205A JP 11801880 A JP11801880 A JP 11801880A JP 11801880 A JP11801880 A JP 11801880A JP S5742205 A JPS5742205 A JP S5742205A
Authority
JP
Japan
Prior art keywords
circuit
circuits
amplifying circuit
positive feedback
amplitude
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.)
Pending
Application number
JP11801880A
Other languages
Japanese (ja)
Inventor
Kazuo Sakamoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11801880A priority Critical patent/JPS5742205A/en
Publication of JPS5742205A publication Critical patent/JPS5742205A/en
Pending 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
    • H03B25/00—Simultaneous generation by a free-running oscillator of oscillations having different frequencies

Landscapes

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

Abstract

PURPOSE:To enable the oscillation in a plurality of different frequencies, one amplifying circuit, by adding an amplitude limit circuit to a positive feedback loop including a plurality of resonance circuits independently provided and operating a straight line region of the amplifying circuit for each oscillating signal. CONSTITUTION:An output power of an amplifying circuit 1 is branched into a plurality of frequencies at a branch circuit 2 and inputted to positive feedback loops A, B, C constituted independently via resonance circuit 3-5 having different frequencies and power distribution circuits 6-8. The amplitude is limited with amplitude limiters 9-11 respectively provided in the loops A, B, C and the phase in conforming with feedback is adjusted at phase adjusting circuits 12-14, a signal on each loop is synthesized at a power synthesis circuit 15 and positive feedback is made to the input of the amplifying circuit 1. The circuit 1 is in operation on a straight line region and the gain of the overall circuit is made to 1 through the saturation characteristics of the circuits 9-11 for stable operation and each frequency is outputted from terminals 16-18.
JP11801880A 1980-08-26 1980-08-26 Multifrequency oscillator Pending JPS5742205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11801880A JPS5742205A (en) 1980-08-26 1980-08-26 Multifrequency oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11801880A JPS5742205A (en) 1980-08-26 1980-08-26 Multifrequency oscillator

Publications (1)

Publication Number Publication Date
JPS5742205A true JPS5742205A (en) 1982-03-09

Family

ID=14726019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11801880A Pending JPS5742205A (en) 1980-08-26 1980-08-26 Multifrequency oscillator

Country Status (1)

Country Link
JP (1) JPS5742205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990835A (en) * 1989-06-27 1991-02-05 Alps Electric Co., Ltd. Automotive motor-driven device controlling and driving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990835A (en) * 1989-06-27 1991-02-05 Alps Electric Co., Ltd. Automotive motor-driven device controlling and driving system

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