KR840003887A - Motor low speed rotation method of tape recorder - Google Patents

Motor low speed rotation method of tape recorder Download PDF

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Publication number
KR840003887A
KR840003887A KR1019830000618A KR830000618A KR840003887A KR 840003887 A KR840003887 A KR 840003887A KR 1019830000618 A KR1019830000618 A KR 1019830000618A KR 830000618 A KR830000618 A KR 830000618A KR 840003887 A KR840003887 A KR 840003887A
Authority
KR
South Korea
Prior art keywords
motor
low speed
tape recorder
speed rotation
rotation method
Prior art date
Application number
KR1019830000618A
Other languages
Korean (ko)
Other versions
KR850000712B1 (en
Inventor
정영식
Original Assignee
정영식
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 정영식 filed Critical 정영식
Priority to KR1019830000618A priority Critical patent/KR850000712B1/en
Publication of KR840003887A publication Critical patent/KR840003887A/en
Application granted granted Critical
Publication of KR850000712B1 publication Critical patent/KR850000712B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/44—Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor
    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

내용 없음No content

Description

테이프 레코더의 모터 저속 회전방법Motor low speed rotation method of tape recorder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 직류 모터의 원리를 그린 도면.1 is a diagram illustrating the principle of a DC motor.

제2도는 본 발명의 일실시예의 회로도.2 is a circuit diagram of one embodiment of the present invention.

제3도는 제2도의 각부 전압, 전류의 파형도.3 is a waveform diagram of voltage and current of each part of FIG.

Claims (1)

휴대용 테이프 레코더의 직류 모터 회전수를 줄여서 카세트 테이프를 회동시키는 것에 있어서, 직류모터의 정류자와 브러시 사이에서 주기적으로 발생하는 펄스성 노이즈를 검출한 신호로 저속으로 회전하는 모터의 구동 전류를 제어하여 동기된 회전력을 회전자에 주기으로 가해서 모터의 토크를 높임으로써 4분의 1로 회전수를 줄인 상기 모터의 회전력을 높임과 동시에 일그러짐 없는 동기 속도로 회전되게한 것을 특징으로하는 테이프 레코더의 모터 저속 회전방법.In rotating the cassette tape by reducing the rotational speed of the DC motor of the portable tape recorder, the drive current of the motor rotating at low speed is controlled by synchronizing the pulsed noise generated periodically between the commutator and the brush of the DC motor. The low speed rotation of the tape recorder characterized by increasing the torque of the motor by reducing the rotational speed by a quarter by applying the prescribed rotational force to the rotor to increase the rotational force of the motor and at the same time without distortion. Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830000618A 1983-02-16 1983-02-16 Slow rotary method KR850000712B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019830000618A KR850000712B1 (en) 1983-02-16 1983-02-16 Slow rotary method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019830000618A KR850000712B1 (en) 1983-02-16 1983-02-16 Slow rotary method

Publications (2)

Publication Number Publication Date
KR840003887A true KR840003887A (en) 1984-10-04
KR850000712B1 KR850000712B1 (en) 1985-05-15

Family

ID=19228267

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830000618A KR850000712B1 (en) 1983-02-16 1983-02-16 Slow rotary method

Country Status (1)

Country Link
KR (1) KR850000712B1 (en)

Also Published As

Publication number Publication date
KR850000712B1 (en) 1985-05-15

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