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JPS5757210A - Magnetic encoder - Google Patents

Magnetic encoder

Info

Publication number
JPS5757210A
JPS5757210A JP13167980A JP13167980A JPS5757210A JP S5757210 A JPS5757210 A JP S5757210A JP 13167980 A JP13167980 A JP 13167980A JP 13167980 A JP13167980 A JP 13167980A JP S5757210 A JPS5757210 A JP S5757210A
Authority
JP
Japan
Prior art keywords
inverters
stage
output terminals
resistors
inverter 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
JP13167980A
Other languages
Japanese (ja)
Inventor
Naohiko Koizumi
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13167980A priority Critical patent/JPS5757210A/en
Publication of JPS5757210A publication Critical patent/JPS5757210A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To provide magnetic encoders of low cost, by using CMOS inverters in a circuit with functions to take out a change in resistance of magnetoresistive elements as a square wave signal. CONSTITUTION:CMOS inverters 8, 9, 10 and 11, 12, 13 are serially connected in three stages to output terminals of magnetoresistive elements 6 and 7, respectively, which are disposed near a magnetic recording medium to have a phase difference of 90 degrees from each other. Between input terminals and output terminals of the inverters 8, 11 on the first stage, resistors 14, 15 are respectively connected so that the inverters 8, 11 on the first stage, resistors 14, 15 are respectively connected so that the inverters 8, 11 are self-biased to near the threshold voltage, thereby to constitute an inverter circuit having its amplifying part which comprises three-stage inverters. Discrete inverters 16, 17 are connected to output terminals of the inverters 10, 13 on the final stage of the inverter circuit, respectively, for the purpose of protecting the IC's.
JP13167980A 1980-09-24 1980-09-24 Magnetic encoder Pending JPS5757210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13167980A JPS5757210A (en) 1980-09-24 1980-09-24 Magnetic encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13167980A JPS5757210A (en) 1980-09-24 1980-09-24 Magnetic encoder

Publications (1)

Publication Number Publication Date
JPS5757210A true JPS5757210A (en) 1982-04-06

Family

ID=15063681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13167980A Pending JPS5757210A (en) 1980-09-24 1980-09-24 Magnetic encoder

Country Status (1)

Country Link
JP (1) JPS5757210A (en)

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