JPS5476051A - Bridge amplifier circuit - Google Patents

Bridge amplifier circuit

Info

Publication number
JPS5476051A
JPS5476051A JP14455177A JP14455177A JPS5476051A JP S5476051 A JPS5476051 A JP S5476051A JP 14455177 A JP14455177 A JP 14455177A JP 14455177 A JP14455177 A JP 14455177A JP S5476051 A JPS5476051 A JP S5476051A
Authority
JP
Japan
Prior art keywords
output
circuit
amplifier
switch circuit
resistance bridge
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
JP14455177A
Other languages
Japanese (ja)
Inventor
Yoshibumi Hara
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 JP14455177A priority Critical patent/JPS5476051A/en
Publication of JPS5476051A publication Critical patent/JPS5476051A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To secure a proportion between the output of the amplifier and the strain of the resistance bridge with no effect of the ambient temperature and thus to obtain the accurate deviation output for the load cell, by connecting the capacitor for storage of electricity to the output side of the 2nd ahd 3rd switch circuits each. CONSTITUTION:The 1st switch circuit SW1 repeats ON and OFF, and reference voltage VS is connected to the resistance bridge circuit via circuit SW<1>. The output of the bridge circuit is supplied to differential amplifier A, and 2nd switch circuit SW2 which is turned on for a fixed time while circuit SW1 is on plus second switch circuit SW2 which is turned on for a fixed time while SW1 is off are connected to the output terminal of amplifier A. Then capacitor C1 and C2 for storage of electricity are connected to the output side of circuit SW2 and 3rd switch circuit SW3 respectively. As a result, a proportion is obtained between the output of amplifier A and the strain of the resistance bridge with no effect of the ambient temperature, thus securing the accurate deviation output for the load cell.
JP14455177A 1977-11-30 1977-11-30 Bridge amplifier circuit Pending JPS5476051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14455177A JPS5476051A (en) 1977-11-30 1977-11-30 Bridge amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14455177A JPS5476051A (en) 1977-11-30 1977-11-30 Bridge amplifier circuit

Publications (1)

Publication Number Publication Date
JPS5476051A true JPS5476051A (en) 1979-06-18

Family

ID=15364910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14455177A Pending JPS5476051A (en) 1977-11-30 1977-11-30 Bridge amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5476051A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592007A (en) * 1978-12-29 1980-07-12 Chino Works Ltd Signal processing unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931985A (en) * 1957-03-25 1960-04-05 Franklin F Offner Differential d.-c. amplifier
JPS5085264A (en) * 1973-11-28 1975-07-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931985A (en) * 1957-03-25 1960-04-05 Franklin F Offner Differential d.-c. amplifier
JPS5085264A (en) * 1973-11-28 1975-07-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592007A (en) * 1978-12-29 1980-07-12 Chino Works Ltd Signal processing unit

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