JPS56153809A - Control voltage generating circuit - Google Patents

Control voltage generating circuit

Info

Publication number
JPS56153809A
JPS56153809A JP5654680A JP5654680A JPS56153809A JP S56153809 A JPS56153809 A JP S56153809A JP 5654680 A JP5654680 A JP 5654680A JP 5654680 A JP5654680 A JP 5654680A JP S56153809 A JPS56153809 A JP S56153809A
Authority
JP
Japan
Prior art keywords
resistances
voltage
resistance
control voltage
voltage controlled
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
JP5654680A
Other languages
Japanese (ja)
Other versions
JPS6218923B2 (en
Inventor
Takuro Oguchi
Shinichi Murai
Zenichi Osawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5654680A priority Critical patent/JPS56153809A/en
Priority to EP83111066A priority patent/EP0108409B1/en
Priority to DE8383111065T priority patent/DE3176289D1/en
Priority to DE8181301812T priority patent/DE3171674D1/en
Priority to EP83111065A priority patent/EP0108408B1/en
Priority to EP81301812A priority patent/EP0039215B1/en
Priority to DE8383111066T priority patent/DE3176043D1/en
Priority to US06/257,551 priority patent/US4352053A/en
Publication of JPS56153809A publication Critical patent/JPS56153809A/en
Publication of JPS6218923B2 publication Critical patent/JPS6218923B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/462—Regulating voltage or current wherein the variable actually regulated by the final control device is dc as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
    • G05F1/463—Sources providing an output which depends on temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/362—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device the amplifier being a single transistor
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
    • H03B5/368—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current the means being voltage variable capacitance diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To ensure generation of the control voltage having a desired temperature characteristics, by providing plural differential amplifiers and arithmetic circuits and thus securing an independent setting of the control voltage such as the bias voltage and the like at each control temperature point. CONSTITUTION:A certain level of voltage divided by the resistances R7 and R8 is applied to the positive input terminal of operational amplifier OPA, and the voltage controlled by variable resistances RV1-RV3 is applied to the negative input terminal via resistances R3-R5. Thus an adder circuit is formed. At the same time, the outputs of differential amplifiers DFA1 and DFA2 are applied to resistances RV1 and RV3, and the voltage controlled by resistances RV1 and RV3 is added with the voltage controlled by the resistance RV2. If the resistance value of thermistor S at the reference temperature is equal to the resistance R1 and the resistance value of posistor P is equal to the resistance R2 with the normal temperature set as the reference level, both points (a) and (b) are set at O-potential. Thus the outputs of DFA1 and DFA2 are set zero. Accordingly the control voltage proportional to the voltage controlled by RV2 is delivered.
JP5654680A 1980-04-28 1980-04-28 Control voltage generating circuit Granted JPS56153809A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP5654680A JPS56153809A (en) 1980-04-28 1980-04-28 Control voltage generating circuit
EP83111066A EP0108409B1 (en) 1980-04-28 1981-04-24 Temperature compensating voltage generator circuit
DE8383111065T DE3176289D1 (en) 1980-04-28 1981-04-24 Temperature compensating voltage generator circuit
DE8181301812T DE3171674D1 (en) 1980-04-28 1981-04-24 Temperature compensating voltage generator circuit
EP83111065A EP0108408B1 (en) 1980-04-28 1981-04-24 Temperature compensating voltage generator circuit
EP81301812A EP0039215B1 (en) 1980-04-28 1981-04-24 Temperature compensating voltage generator circuit
DE8383111066T DE3176043D1 (en) 1980-04-28 1981-04-24 Temperature compensating voltage generator circuit
US06/257,551 US4352053A (en) 1980-04-28 1981-04-27 Temperature compensating voltage generator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5654680A JPS56153809A (en) 1980-04-28 1980-04-28 Control voltage generating circuit

Publications (2)

Publication Number Publication Date
JPS56153809A true JPS56153809A (en) 1981-11-28
JPS6218923B2 JPS6218923B2 (en) 1987-04-25

Family

ID=13030082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5654680A Granted JPS56153809A (en) 1980-04-28 1980-04-28 Control voltage generating circuit

Country Status (1)

Country Link
JP (1) JPS56153809A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135520A (en) * 1983-01-25 1984-08-03 Seiko Epson Corp Constant voltage circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135520A (en) * 1983-01-25 1984-08-03 Seiko Epson Corp Constant voltage circuit
JPH0618012B2 (en) * 1983-01-25 1994-03-09 セイコーエプソン株式会社 Constant voltage circuit

Also Published As

Publication number Publication date
JPS6218923B2 (en) 1987-04-25

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