JPS57153262A - Brushless dc speed detecting generator - Google Patents

Brushless dc speed detecting generator

Info

Publication number
JPS57153262A
JPS57153262A JP56038653A JP3865381A JPS57153262A JP S57153262 A JPS57153262 A JP S57153262A JP 56038653 A JP56038653 A JP 56038653A JP 3865381 A JP3865381 A JP 3865381A JP S57153262 A JPS57153262 A JP S57153262A
Authority
JP
Japan
Prior art keywords
generator
speed
voltage
speed detecting
brushless
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
JP56038653A
Other languages
Japanese (ja)
Other versions
JPS612909B2 (en
Inventor
Toshihiro Nomura
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56038653A priority Critical patent/JPS57153262A/en
Priority to DE19823209784 priority patent/DE3209784A1/en
Publication of JPS57153262A publication Critical patent/JPS57153262A/en
Publication of JPS612909B2 publication Critical patent/JPS612909B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Brushless Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To obtain a DC voltage corresponding to a speed without contact, by differentiating the terminal voltage of an AC speed detecting generator and discriminating its polarity to detect a position and rectifying the output of the AC speed detecting generator by this position detection signal. CONSTITUTION:Electromotive forces eU, eV, and eW induced in respective phase windings of a three-shase AC generator 10 are differentiated in a phase detecting circuit 14. Voltages eU+30 deg., eV+30 deg., and eW+30 deg. having phases earier than those of induced voltages eU, eV, and eW by 30 deg. are generated in a voltage synthesizing circuit 12 and are rectified by switching analogue switches S1-S3 by position detection signals eU', eV', and eW' obtained by differentiation and are synthesized in an inverting amplifier 18, thus obtaining a DC voltage eO proportional to the speed.
JP56038653A 1981-03-19 1981-03-19 Brushless dc speed detecting generator Granted JPS57153262A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56038653A JPS57153262A (en) 1981-03-19 1981-03-19 Brushless dc speed detecting generator
DE19823209784 DE3209784A1 (en) 1981-03-19 1982-03-17 Device for generating a DC voltage proportional to the rotational speed and rotational direction of a brushless multiphase tachometer generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56038653A JPS57153262A (en) 1981-03-19 1981-03-19 Brushless dc speed detecting generator

Publications (2)

Publication Number Publication Date
JPS57153262A true JPS57153262A (en) 1982-09-21
JPS612909B2 JPS612909B2 (en) 1986-01-28

Family

ID=12531211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56038653A Granted JPS57153262A (en) 1981-03-19 1981-03-19 Brushless dc speed detecting generator

Country Status (2)

Country Link
JP (1) JPS57153262A (en)
DE (1) DE3209784A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1163474B (en) * 1983-06-07 1987-04-08 Elge App Elettron PROCEDURE FOR SPEEDOMETER SIMULATION WITH PROCESSING OF SIGNALS COMING FROM A POSITION DETECTOR OF AN INDUCTIVE OR CAPACITIVE TYPE AND CIRCUIT FOR THE IMPLEMENTATION OF THAT PROCEDURE

Also Published As

Publication number Publication date
DE3209784A1 (en) 1982-11-11
JPS612909B2 (en) 1986-01-28

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