JPS57157314A - Stabilized power supply circuit - Google Patents

Stabilized power supply circuit

Info

Publication number
JPS57157314A
JPS57157314A JP4282981A JP4282981A JPS57157314A JP S57157314 A JPS57157314 A JP S57157314A JP 4282981 A JP4282981 A JP 4282981A JP 4282981 A JP4282981 A JP 4282981A JP S57157314 A JPS57157314 A JP S57157314A
Authority
JP
Japan
Prior art keywords
base
emitter
voltage
temperature characteristics
output voltage
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
JP4282981A
Other languages
Japanese (ja)
Inventor
Hisao Ishii
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP4282981A priority Critical patent/JPS57157314A/en
Publication of JPS57157314A publication Critical patent/JPS57157314A/en
Pending 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
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/567—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for temperature compensation

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)

Abstract

PURPOSE:To make the operation of a circuit using an output voltage stable, by compensating the output voltage so that the temperature characteristics of a voltage between the base and the emitter can be cancelled. CONSTITUTION:In a feedback circuit FB, a base and an emitter of a transistor (TR)Q21 with a diode characteristic element is inserted in series, and a resistor R21 is inserted in parallel with a differential amplifier A, and an output voltage V0 is fed back to the base of a TRQ4 of a differential amplifier A via an emitter follower circuit consisting of the TRQ21 and the resistor R21. By selecting the base-to-emitter voltage VBE of TRs Q21,Q13-Q15 and the temperature characteristics equally, the effect of the temperature characteristics of the base- to-emitter voltage VBE on a constant current I0 can completely be cancelled, allowing to obtain a stable detection output level.
JP4282981A 1981-03-24 1981-03-24 Stabilized power supply circuit Pending JPS57157314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4282981A JPS57157314A (en) 1981-03-24 1981-03-24 Stabilized power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4282981A JPS57157314A (en) 1981-03-24 1981-03-24 Stabilized power supply circuit

Publications (1)

Publication Number Publication Date
JPS57157314A true JPS57157314A (en) 1982-09-28

Family

ID=12646847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4282981A Pending JPS57157314A (en) 1981-03-24 1981-03-24 Stabilized power supply circuit

Country Status (1)

Country Link
JP (1) JPS57157314A (en)

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