JPS5752390A - Rotational pulse detecting circuit for reel motor - Google Patents

Rotational pulse detecting circuit for reel motor

Info

Publication number
JPS5752390A
JPS5752390A JP12675380A JP12675380A JPS5752390A JP S5752390 A JPS5752390 A JP S5752390A JP 12675380 A JP12675380 A JP 12675380A JP 12675380 A JP12675380 A JP 12675380A JP S5752390 A JPS5752390 A JP S5752390A
Authority
JP
Japan
Prior art keywords
motor
rotational pulse
reel motor
brushed
detected
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
JP12675380A
Other languages
Japanese (ja)
Inventor
Akira Kiyono
Kazuo Takamori
Kaoru Morinaga
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 JP12675380A priority Critical patent/JPS5752390A/en
Priority to US06/300,480 priority patent/US4443745A/en
Priority to GB8127352A priority patent/GB2088591B/en
Priority to BR8105829A priority patent/BR8105829A/en
Priority to DE19813136219 priority patent/DE3136219A1/en
Priority to DE19813152952 priority patent/DE3152952C2/de
Publication of JPS5752390A publication Critical patent/JPS5752390A/en
Priority to SG45287A priority patent/SG45287G/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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To simplify automatic stopping structure for a tape recorder, by detecting variations of current waveform of a brushed DC motor in order to detect existence of rotational pulse of a reel motor. CONSTITUTION:A reel motor M consisting of a brushed DC motor is controlled by a drive circuit 11 including transistors Q1-Q6, and playback, fast forward, and rewind are performed. Voltage variation of a resistor R1 for motor torque setting is detected by a rotational pulse detector 12 consisting of a differential amplifier 122 and a mono-multivibrator 123. Its output is induced to a logic LC via an integrator 124 and a switching circuit 125. And a control signal is produced. Therefore, existence of a rotational pulse can be detected by utilizing the indication of characteristics that current waveform shows different from those of revolution when the motor M is locked at a tape end. Accurate automatic stopping operation can be made possible.
JP12675380A 1980-09-12 1980-09-12 Rotational pulse detecting circuit for reel motor Pending JPS5752390A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP12675380A JPS5752390A (en) 1980-09-12 1980-09-12 Rotational pulse detecting circuit for reel motor
US06/300,480 US4443745A (en) 1980-09-12 1981-09-09 Rotation signal detection device of DC motor with brushes
GB8127352A GB2088591B (en) 1980-09-12 1981-09-10 Rotation detection device for dc motor with brushes
BR8105829A BR8105829A (en) 1980-09-12 1981-09-11 ROTATION SIGNAL DETECTION DEVICE FOR A CONTINUOUS CURRENT ENGINE WITH BRUSHES
DE19813136219 DE3136219A1 (en) 1980-09-12 1981-09-12 TURN SIGNAL DETECTOR FOR A BRUSHED DC MOTOR
DE19813152952 DE3152952C2 (en) 1980-09-12 1981-09-12
SG45287A SG45287G (en) 1980-09-12 1987-05-18 Rotation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12675380A JPS5752390A (en) 1980-09-12 1980-09-12 Rotational pulse detecting circuit for reel motor

Publications (1)

Publication Number Publication Date
JPS5752390A true JPS5752390A (en) 1982-03-27

Family

ID=14943057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12675380A Pending JPS5752390A (en) 1980-09-12 1980-09-12 Rotational pulse detecting circuit for reel motor

Country Status (1)

Country Link
JP (1) JPS5752390A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932379A (en) * 1982-07-16 1984-02-21 ローベルト・ボッシュ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Device for connecting and interrupting electric motor drive unit
CN113377041A (en) * 2021-05-26 2021-09-10 国网江西省电力有限公司供电服务管理中心 Complex current waveform analog playback circuit and dynamic control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50144023A (en) * 1974-05-10 1975-11-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50144023A (en) * 1974-05-10 1975-11-19

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932379A (en) * 1982-07-16 1984-02-21 ローベルト・ボッシュ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Device for connecting and interrupting electric motor drive unit
JPH0440954B2 (en) * 1982-07-16 1992-07-06 Bosch Gmbh Robert
CN113377041A (en) * 2021-05-26 2021-09-10 国网江西省电力有限公司供电服务管理中心 Complex current waveform analog playback circuit and dynamic control method

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