JPS6324711U - - Google Patents
Info
- Publication number
- JPS6324711U JPS6324711U JP11758286U JP11758286U JPS6324711U JP S6324711 U JPS6324711 U JP S6324711U JP 11758286 U JP11758286 U JP 11758286U JP 11758286 U JP11758286 U JP 11758286U JP S6324711 U JPS6324711 U JP S6324711U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic head
- magnetic disk
- switching transistor
- head
- 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
Links
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Digital Magnetic Recording (AREA)
Description
第１図はこの考案の一実施例による磁気デイス
ク装置の記録電流切り換え回路を示す回路図、第
２図ａ〜ｄは第１図の要部を示す波形図、第３図
は従来の磁気デイスク装置のヘツドと媒体の位置
関係を示す構造図、第４図は従来の磁気デイスク
装置の記録電流切り換え回路を示す回路図である
。
図において、１は磁気デイスク記録媒体、３ａ
，３ｂは上側及び下側の磁気ヘツド、１１は磁気
ヘツド選択信号、１３はスイツチングトランジス
タ、１００は記録電流補正回路である。なお、図
中同一符号は同一又は相当部分を示す。
FIG. 1 is a circuit diagram showing a recording current switching circuit of a magnetic disk device according to an embodiment of the invention, FIGS. 2 a to d are waveform diagrams showing the main parts of FIG. 1, and FIG. FIG. 4 is a structural diagram showing the positional relationship between the head and the medium of the device. FIG. 4 is a circuit diagram showing a recording current switching circuit of a conventional magnetic disk device. In the figure, 1 is a magnetic disk recording medium, 3a
, 3b are upper and lower magnetic heads, 11 is a magnetic head selection signal, 13 is a switching transistor, and 100 is a recording current correction circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
上側及び下側の磁気ヘツドが異なるトラツク位置
に固定されて設けられ、それら各磁気ヘツドを選
択する磁気ヘツド選択信号を受けることにより上
記一方の磁気ヘツドを有効とする磁気デイスク装
置において、上記磁気ヘツド選択信号によりオン
またはオフするスイツチングトランジスタと、こ
のスイツチングトランジスタと直列接続をなし、
そのオン時に上記磁気ヘツドへの記録電流を補正
する抵抗とを少なくとも有する記録電流補正回路
を備え、上記磁気ヘツドの各面に対応して電流を
可変に切り換えるよう構成したことを特徴とする
磁気デイスク装置。 Upper and lower magnetic heads are fixed at different track positions corresponding to each side of the double-sided magnetic disk recording medium, and one of the magnetic heads is selected by receiving a magnetic head selection signal for selecting each magnetic head. In a magnetic disk device with a head enabled, a switching transistor that is turned on or off by the magnetic head selection signal, and a switching transistor connected in series with the switching transistor,
A magnetic disk characterized in that it comprises a recording current correction circuit having at least a resistor that corrects the recording current to the magnetic head when the magnetic disk is turned on, and is configured to variably switch the current corresponding to each surface of the magnetic head. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11758286U JPS6324711U (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11758286U JPS6324711U (en) | 1986-07-31 | 1986-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6324711U true JPS6324711U (en) | 1988-02-18 |
Family
ID=31003234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11758286U Pending JPS6324711U (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0242684A (en) * | 1988-08-02 | 1990-02-13 | Teac Corp | Magnetic disk device |
-
1986
- 1986-07-31 JP JP11758286U patent/JPS6324711U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0242684A (en) * | 1988-08-02 | 1990-02-13 | Teac Corp | Magnetic disk device |