JPS57183113A - Resistance network - Google Patents

Resistance network

Info

Publication number
JPS57183113A
JPS57183113A JP6918081A JP6918081A JPS57183113A JP S57183113 A JPS57183113 A JP S57183113A JP 6918081 A JP6918081 A JP 6918081A JP 6918081 A JP6918081 A JP 6918081A JP S57183113 A JPS57183113 A JP S57183113A
Authority
JP
Japan
Prior art keywords
resistance
control data
bit
varying
ladder
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
JP6918081A
Other languages
Japanese (ja)
Other versions
JPS6220734B2 (en
Inventor
Hiroshi Tanaka
Susumu Yamada
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP6918081A priority Critical patent/JPS57183113A/en
Priority to US06/374,886 priority patent/US4468607A/en
Priority to DE3216828A priority patent/DE3216828C2/en
Publication of JPS57183113A publication Critical patent/JPS57183113A/en
Publication of JPS6220734B2 publication Critical patent/JPS6220734B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
    • 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
    • H03M1/664—Non-linear conversion not otherwise provided for in subgroups of H03M1/66
    • 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
    • H03M1/74—Simultaneous conversion
    • H03M1/78—Simultaneous conversion using ladder network
    • H03M1/785—Simultaneous conversion using ladder network using resistors, i.e. R-2R ladders

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Attenuators (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To allow output/input relation, based upon control data and a bias voltage, to approximate to an A-curve or D-curve polygonal line by varying the resistance value of the final bit of an R-2R ladder resistance network. CONSTITUTION:In accordance with digital control data from a control data generating circuit 3, a switching circuit 4 consisting of switching means S1, S2-Sn is switched to input an analog signal Sin and a bias voltage to an R-2R ladder resistance netwrok 5. Part of the resistance network up to the (n-1)th bit is regarded as a normal R-2R ladder resistance network, and a resistance B1 or B2[alpha; (Sout-Vb)/(Sin-Vb)] is connected to a resistance A1 by a switch controlled by control data which corresponds to the (n)th bit without varying the resistance RA of the (n)th bit. Further, the resistance A1 or A2 is connected to the resistance B1 without varying the resistance RB.
JP6918081A 1981-05-07 1981-05-07 Resistance network Granted JPS57183113A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6918081A JPS57183113A (en) 1981-05-07 1981-05-07 Resistance network
US06/374,886 US4468607A (en) 1981-05-07 1982-05-04 Ladder-type signal attenuator
DE3216828A DE3216828C2 (en) 1981-05-07 1982-05-05 Ladder-type damping network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6918081A JPS57183113A (en) 1981-05-07 1981-05-07 Resistance network

Publications (2)

Publication Number Publication Date
JPS57183113A true JPS57183113A (en) 1982-11-11
JPS6220734B2 JPS6220734B2 (en) 1987-05-08

Family

ID=13395260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6918081A Granted JPS57183113A (en) 1981-05-07 1981-05-07 Resistance network

Country Status (1)

Country Link
JP (1) JPS57183113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63234891A (en) * 1988-02-20 1988-09-30 Matsushita Electric Works Ltd Motor speed controlling circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669181A (en) * 1979-11-12 1981-06-10 Ricoh Co Ltd Deflection setting in deflection control ink jet recorder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669181A (en) * 1979-11-12 1981-06-10 Ricoh Co Ltd Deflection setting in deflection control ink jet recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63234891A (en) * 1988-02-20 1988-09-30 Matsushita Electric Works Ltd Motor speed controlling circuit

Also Published As

Publication number Publication date
JPS6220734B2 (en) 1987-05-08

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