JPS6128149U - magnetic recording device - Google Patents

magnetic recording device

Info

Publication number
JPS6128149U
JPS6128149U JP11273484U JP11273484U JPS6128149U JP S6128149 U JPS6128149 U JP S6128149U JP 11273484 U JP11273484 U JP 11273484U JP 11273484 U JP11273484 U JP 11273484U JP S6128149 U JPS6128149 U JP S6128149U
Authority
JP
Japan
Prior art keywords
recording device
frequency generator
magnetic recording
motor
output
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
JP11273484U
Other languages
Japanese (ja)
Inventor
功人 渡辺
Original Assignee
株式会社精工舎
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 株式会社精工舎 filed Critical 株式会社精工舎
Priority to JP11273484U priority Critical patent/JPS6128149U/en
Publication of JPS6128149U publication Critical patent/JPS6128149U/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

−。 図面は本考案の二実施例を示した電気回路図である。 １・・・モータ、２・・・周波数発電機、３・・・Ｆ／
Ｖ変換回路、５・・・駆動トランジスタ、６・・・周期
測定回路。−. The drawings are electrical circuit diagrams showing two embodiments of the present invention. 1...Motor, 2...Frequency generator, 3...F/
V conversion circuit, 5... drive transistor, 6... period measurement circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁気ディスクを回転するためのモータと、このモータの
回転に同期してパルスを発生する周波数発電機と、この
周波数発電機からのパルスの周波数に応じて上記モータ
の回転速度を制御する制御回路と、上記周波数発電機か
らのパルスの周期を測定し、これが所定値に達したとき
出力を発生する測定回路とからなり、上記磁気ディスク
を書込みおよび読出し可能状態に設定する条件の一つと
して上記測定回路の出力を用いたことを特徴とする磁気
記録装置。A motor for rotating a magnetic disk, a frequency generator that generates pulses in synchronization with the rotation of the motor, and a control circuit that controls the rotational speed of the motor according to the frequency of the pulses from the frequency generator. , and a measuring circuit that measures the period of the pulse from the frequency generator and generates an output when the period reaches a predetermined value, and the above measurement is performed as one of the conditions for setting the magnetic disk in a writable and readable state. A magnetic recording device characterized by using the output of a circuit.
JP11273484U 1984-07-25 1984-07-25 magnetic recording device Pending JPS6128149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11273484U JPS6128149U (en) 1984-07-25 1984-07-25 magnetic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11273484U JPS6128149U (en) 1984-07-25 1984-07-25 magnetic recording device

Publications (1)

Publication Number Publication Date
JPS6128149U true JPS6128149U (en) 1986-02-20

Family

ID=30671771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11273484U Pending JPS6128149U (en) 1984-07-25 1984-07-25 magnetic recording device

Country Status (1)

Country Link
JP (1) JPS6128149U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379274A (en) * 1986-09-22 1988-04-09 Matsushita Electric Ind Co Ltd Optical recording and reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6379274A (en) * 1986-09-22 1988-04-09 Matsushita Electric Ind Co Ltd Optical recording and reproducing device

Similar Documents

Publication Publication Date Title
JPS5915289U (en) DC motor drive stop device
JPS6128149U (en) magnetic recording device
JPS6267334U (en)
JPS6236482U (en)
JPS5848056U (en) Motor drive circuit
JPS5986055U (en) magnetic recording and reproducing device
JPS6132799U (en) Pulse train input digital controller
JPS6062898U (en) Engine generator voltage control device
JPS5837796U (en) Control circuit for small DC motor
JPS62140898U (en)
JPS5982811U (en) Position pulse generator
JPS59179495U (en) Motor drive stop device
JPS5872748U (en) Cabstan speed control device
JPS6082997U (en) Electric motor control device
JPS6047145U (en) magnetic recording device
JPS59149494U (en) DC motor rotation speed control circuit
JPS60169733U (en) Recording mode discrimination circuit
JPS59179470U (en) Motor characteristic measuring device
JPS6141399U (en) step motor device
JPS606075U (en) Power window control device
JPS58127890U (en) Control device for motors used to drive automobile control equipment
JPS5966943U (en) Direct drive capstan motor control circuit
JPS5819311U (en) Rotating body rotation speed control device
JPS5841095U (en) DC servo motor control circuit
JPS58121192U (en) Motor rotation control circuit