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JPS5698912A - Error amplifying circuit - Google Patents

Error amplifying circuit

Info

Publication number
JPS5698912A
JPS5698912A JP114380A JP114380A JPS5698912A JP S5698912 A JPS5698912 A JP S5698912A JP 114380 A JP114380 A JP 114380A JP 114380 A JP114380 A JP 114380A JP S5698912 A JPS5698912 A JP S5698912A
Authority
JP
Japan
Prior art keywords
variance
voltage
power supply
input
supply 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
JP114380A
Other languages
Japanese (ja)
Inventor
Shinji Kitahara
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.)
Toko Inc
Original Assignee
Toko Inc
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 Toko Inc filed Critical Toko Inc
Priority to JP114380A priority Critical patent/JPS5698912A/en
Publication of JPS5698912A publication Critical patent/JPS5698912A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To avoid the variation of reference voltage due to the variance of power supply voltage from being affected on the output of the error amplifying circuit, by the constitution that a voltage corresponding to the variance in the reference voltage is added to the input voltage through the detection of the variance of the power supply voltage.
CONSTITUTION: A reference voltage source 7 is connected to + input of a differential amplifier A2 constituting the correction circuit, the emitter of a transistor TRQ8 is connected to - input of the amplifier A2 and connected to the output of the amplifier A2. If the power supply voltage Vcc is in variance, the reference voltage E also changes. The variance ΔVcc of the power supply voltage and the current change ΔI across resistor R3 due to the variance ΔE are flowed to the connection point P2 between resistors R1, R2 as the variance of the collector current of TRQ8. By suitably selecting the ratio of detection resistors R3, R2, the same potential change the same as the variance ΔE is caused to the connecting point P2 and it is fed to an input signal S. Thus, in a differential amplifier A1, signal S+ΔE and voltage E+ΔE are compared, and in error signal e of the output, the variance ΔE is cancelled to avoid the effect due to the variance of voltage.
COPYRIGHT: (C)1981,JPO&Japio
JP114380A 1980-01-09 1980-01-09 Error amplifying circuit Pending JPS5698912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP114380A JPS5698912A (en) 1980-01-09 1980-01-09 Error amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP114380A JPS5698912A (en) 1980-01-09 1980-01-09 Error amplifying circuit

Publications (1)

Publication Number Publication Date
JPS5698912A true JPS5698912A (en) 1981-08-08

Family

ID=11493214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP114380A Pending JPS5698912A (en) 1980-01-09 1980-01-09 Error amplifying circuit

Country Status (1)

Country Link
JP (1) JPS5698912A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02136498A (en) * 1988-11-16 1990-05-25 Taisei Corp Shielding segment for multiple type tunnel
EP1589660A2 (en) * 2004-04-21 2005-10-26 Hitachi Ltd. Frequency output circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02136498A (en) * 1988-11-16 1990-05-25 Taisei Corp Shielding segment for multiple type tunnel
EP1589660A2 (en) * 2004-04-21 2005-10-26 Hitachi Ltd. Frequency output circuit

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