JPS5646679A - Servo circuit - Google Patents

Servo circuit

Info

Publication number
JPS5646679A
JPS5646679A JP12370379A JP12370379A JPS5646679A JP S5646679 A JPS5646679 A JP S5646679A JP 12370379 A JP12370379 A JP 12370379A JP 12370379 A JP12370379 A JP 12370379A JP S5646679 A JPS5646679 A JP S5646679A
Authority
JP
Japan
Prior art keywords
brushless motor
phase
circuit
constitution
control
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
JP12370379A
Other languages
Japanese (ja)
Inventor
Shuhei Kanda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12370379A priority Critical patent/JPS5646679A/en
Publication of JPS5646679A publication Critical patent/JPS5646679A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/34—Modelling or simulation for control purposes

Abstract

PURPOSE:To simplify the constitution of control system of a brushless motor by a method wherein a speed controlling signals and a phase controlling signals are obtained from the switching signals of the brushless motor, and the speed control and the phase control of the motor are performed according to those signals. CONSTITUTION:A switching signal of a brushless motor 1 being used for the house- service tape recorder, etc., is detected by detecting the change of magnetic field field using a detector of Hall element, etc., and the obtained signal is sent to an automatic frequency control circuit 5 and to a sampling circuit 8. An automatic phase controlling pulse is sampled in the sampling circuit 8 and is sent to automatic phase control circuit 4, the output of circuit 4 and the output of the automatic frequency control circuit 5 are added in an adder 6 to control the brushless motor 1. Therefore a speed detecting pulse generator and a phase detecting pulse generator can be omitted to simplify the constitution and to reduce the cost.
JP12370379A 1979-09-26 1979-09-26 Servo circuit Pending JPS5646679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12370379A JPS5646679A (en) 1979-09-26 1979-09-26 Servo circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12370379A JPS5646679A (en) 1979-09-26 1979-09-26 Servo circuit

Publications (1)

Publication Number Publication Date
JPS5646679A true JPS5646679A (en) 1981-04-27

Family

ID=14867247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12370379A Pending JPS5646679A (en) 1979-09-26 1979-09-26 Servo circuit

Country Status (1)

Country Link
JP (1) JPS5646679A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089675A (en) * 1982-04-02 1996-01-12 Ampex Corp Servo-controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH089675A (en) * 1982-04-02 1996-01-12 Ampex Corp Servo-controller

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