JPS5464449A - Oscillation unit - Google Patents

Oscillation unit

Info

Publication number
JPS5464449A
JPS5464449A JP13134877A JP13134877A JPS5464449A JP S5464449 A JPS5464449 A JP S5464449A JP 13134877 A JP13134877 A JP 13134877A JP 13134877 A JP13134877 A JP 13134877A JP S5464449 A JPS5464449 A JP S5464449A
Authority
JP
Japan
Prior art keywords
current
flowed
circuit
turned
oscillation
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
JP13134877A
Other languages
Japanese (ja)
Inventor
Hiroshi Kito
Kazuo Takahagi
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 JP13134877A priority Critical patent/JPS5464449A/en
Publication of JPS5464449A publication Critical patent/JPS5464449A/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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/02—Details

Landscapes

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

Abstract

PURPOSE:To accurately change over the oscillation frequency, by changing the oscillator changing the frequency according to the flowing current and the number of transistor operated in the current Miller circuit consisting of a plurality of transistors by means of the switching circuit. CONSTITUTION:The current flowed from the terminal IIN of the oscillation circuit 4 charges up the capacitor C1. The charging and discharging of C1 is repeated by turning on and off of TrT11, T12 and TrT13 in current Miller CM connection by utilizing the hysteresis performance of the Schmitt circuit consisting of TrT14 to T16 and the oscillation output (b) in proportional to the flowed current can be obtained. A given current is flowed in the resistor VR, TrT3, and resistor R3, and the current of the same value is flowed in TrT4 to T8 of CM connection, and if the switch 1 is turned on, TrT1 is turned on and TrT2 is turned off, and the current about five times that flowed in VR is flown in TrT9 and T10 in CM connection and it is fed to the circuit 4. If the switch 1 is OFF, TrT4 is turned off and the current four times that flowed in VR is flowed in TrT10 and it is fed to the circuit 4. Accordingly, the oscillation circuit having the frequency ratio of 5/4 can be constituted.
JP13134877A 1977-10-31 1977-10-31 Oscillation unit Pending JPS5464449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13134877A JPS5464449A (en) 1977-10-31 1977-10-31 Oscillation unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13134877A JPS5464449A (en) 1977-10-31 1977-10-31 Oscillation unit

Publications (1)

Publication Number Publication Date
JPS5464449A true JPS5464449A (en) 1979-05-24

Family

ID=15055823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13134877A Pending JPS5464449A (en) 1977-10-31 1977-10-31 Oscillation unit

Country Status (1)

Country Link
JP (1) JPS5464449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119314A (en) * 1986-07-07 1988-05-24 テキサス　インスツルメンツ　インコ−ポレイテツド Integrated circuit oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119314A (en) * 1986-07-07 1988-05-24 テキサス　インスツルメンツ　インコ−ポレイテツド Integrated circuit oscillator

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