JPS5637727A - Voltage control oscillator - Google Patents

Voltage control oscillator

Info

Publication number
JPS5637727A
JPS5637727A JP11281579A JP11281579A JPS5637727A JP S5637727 A JPS5637727 A JP S5637727A JP 11281579 A JP11281579 A JP 11281579A JP 11281579 A JP11281579 A JP 11281579A JP S5637727 A JPS5637727 A JP S5637727A
Authority
JP
Japan
Prior art keywords
integrator
input voltage
output
comparator
oscillation frequency
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
JP11281579A
Other languages
Japanese (ja)
Inventor
Nobuo Kishimoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11281579A priority Critical patent/JPS5637727A/en
Publication of JPS5637727A publication Critical patent/JPS5637727A/en
Pending 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
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits

Abstract

PURPOSE:To ensure proportion between the input voltage and the oscillation frequency over a wide range, by eliminating the nonlinear part with installation of the analog switch, the integrator and the comparator each. CONSTITUTION:The analog switch 12, the Miller integrator 27 and the comparator 28 are provided each. The contact position of the switch 12 is at the terminal 14 when the positive input voltage is applied to the input terminal 11. Thus the positive input voltage of the input resistance 15 of the integrator 27 is added 16 with the positive input voltage which is applied from the comparator 28 of the input resistance 15, and then the slope of the output (2) of the integrator 27 becomes steep in the positive direction. Then the output (1) of the comparator 28 is inverted to turn negative when the output of the integrator 27 reaches a certain level. And then switch 12 is changed over, and the position of the contact bar shifts to the contact 17. And this time the output slope of the integrator 27 becomes steep in the negative direction. This action is repeated to increase the oscillation frequency. In this case, the output of the integrator 27 is proportional to the level of the input voltage, and accordingly the change components become proportional to each other between the input voltage and the oscillation frequency. Thus the linearity is improved for both the input voltage and the oscillation frequency.
JP11281579A 1979-09-05 1979-09-05 Voltage control oscillator Pending JPS5637727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11281579A JPS5637727A (en) 1979-09-05 1979-09-05 Voltage control oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11281579A JPS5637727A (en) 1979-09-05 1979-09-05 Voltage control oscillator

Publications (1)

Publication Number Publication Date
JPS5637727A true JPS5637727A (en) 1981-04-11

Family

ID=14596216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11281579A Pending JPS5637727A (en) 1979-09-05 1979-09-05 Voltage control oscillator

Country Status (1)

Country Link
JP (1) JPS5637727A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106259A (en) * 1976-03-03 1977-09-06 Hitachi Ltd Voltage-frequency conversion circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106259A (en) * 1976-03-03 1977-09-06 Hitachi Ltd Voltage-frequency conversion circuit

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