JPS55130227A - Voltage division circuit - Google Patents

Voltage division circuit

Info

Publication number
JPS55130227A
JPS55130227A JP3764279A JP3764279A JPS55130227A JP S55130227 A JPS55130227 A JP S55130227A JP 3764279 A JP3764279 A JP 3764279A JP 3764279 A JP3764279 A JP 3764279A JP S55130227 A JPS55130227 A JP S55130227A
Authority
JP
Japan
Prior art keywords
resistance
networks
plus
voltages
circuit
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
JP3764279A
Other languages
Japanese (ja)
Inventor
Michinobu Ohata
Masao Yamazawa
Toshihiko Matsumura
Hisami Tanaka
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 JP3764279A priority Critical patent/JPS55130227A/en
Publication of JPS55130227A publication Critical patent/JPS55130227A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/68—Digital/analogue converters with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Attenuators (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To obtain a voltage division circuit which extracts the voltage fractionated accurately by means of a comparatively small number of the resistance element featuring the accurate value plus the resistance circuit network to which the connection alteration can be given from the outside. CONSTITUTION:For serial resistance circuit group SRR for voltage division, resistance circuit networks RR-A and RR-B with the resistance value switched by the contact plus voltages VP and VQ are connected across the circuit group, and then divided voltages Vm-Vn are delivered through the resistance connection point. A number of switches SW-A1...plus SW-B1... within networks RR-A and RR-B operate complementarily and in a pair respectively, and then the control is given so that the sum of the resistance value networks RR-A and RR-B possess may always be constant. Voltages Vm-Vn are shifted by the optional fixed amount by varying the resistance values of RR-A and RR-B under the conditions stated above. As a result, an extremely large number of accurate potential levels can be obtained only by the siwtch operation.
JP3764279A 1979-03-29 1979-03-29 Voltage division circuit Pending JPS55130227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3764279A JPS55130227A (en) 1979-03-29 1979-03-29 Voltage division circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3764279A JPS55130227A (en) 1979-03-29 1979-03-29 Voltage division circuit

Publications (1)

Publication Number Publication Date
JPS55130227A true JPS55130227A (en) 1980-10-08

Family

ID=12503299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3764279A Pending JPS55130227A (en) 1979-03-29 1979-03-29 Voltage division circuit

Country Status (1)

Country Link
JP (1) JPS55130227A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792919A (en) * 1980-11-29 1982-06-09 Fujitsu Ltd Code converter
JPS61274424A (en) * 1985-05-29 1986-12-04 Nec Corp Analog-to-digital converter
JP2002252536A (en) * 2001-02-26 2002-09-06 Mitsubishi Electric Corp Electronic volume circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792919A (en) * 1980-11-29 1982-06-09 Fujitsu Ltd Code converter
JPS628051B2 (en) * 1980-11-29 1987-02-20 Fujitsu Ltd
JPS61274424A (en) * 1985-05-29 1986-12-04 Nec Corp Analog-to-digital converter
JP2002252536A (en) * 2001-02-26 2002-09-06 Mitsubishi Electric Corp Electronic volume circuit

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