JPS62168800U - - Google Patents
Info
- Publication number
- JPS62168800U JPS62168800U JP5626686U JP5626686U JPS62168800U JP S62168800 U JPS62168800 U JP S62168800U JP 5626686 U JP5626686 U JP 5626686U JP 5626686 U JP5626686 U JP 5626686U JP S62168800 U JPS62168800 U JP S62168800U
- Authority
- JP
- Japan
- Prior art keywords
- spindle motor
- transistor
- magnetic disk
- drive circuit
- controls
- 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 2
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク回路図、第２図は従来のデイスク装置の構成
を示すブロツク回路図である。
１：スピンドルモータ、２：スピンドルモータ
駆動回路、３：直流電源、４：トランジスタブリ
ツジ回路、６：電流制御回路、７：駆動制御回路
、８：電流制限素子としての抵抗器、１１，１２
：トランジスタ。なお、各図中同一符号は同一ま
たは相当部分を示す。
FIG. 1 is a block circuit diagram showing the structure of an embodiment of this invention, and FIG. 2 is a block circuit diagram showing the structure of a conventional disk device. 1: Spindle motor, 2: Spindle motor drive circuit, 3: DC power supply, 4: Transistor bridge circuit, 6: Current control circuit, 7: Drive control circuit, 8: Resistor as current limiting element, 11, 12
:Transistor. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
と、直流電源より電力を得て、前記スピンドルモ
ータに交流の駆動電流を供給するスピンドルモー
タ駆動回路と、このスピンドルモータ駆動回路と
前記直流電源との間に直列接続された電流制限素
子とを備えたことを特徴とする磁気デイスク装置
。 (2) 前記スピンドルモータ駆動回路は、直流側
端子が直流電源に接続され、交流側端子に前記ス
ピンドルモータが接続されたトランジスタブリツ
ジ回路と、このトランジスタブリツジ回路を構成
する陽極側のトランジスタと負極側のトランジス
タとを互いに異るアームから順次選択し、一方の
トランジスタをスイツチング素子として制御する
と共に、他方のトランジスタを電流制御素子とし
て制御する制御回路とを備えたことを特徴とする
実用新案登録請求の範囲第１項記載の磁気デイス
ク装置。[Claims for Utility Model Registration] (1) A spindle motor that rotationally drives a magnetic disk, a spindle motor drive circuit that obtains electric power from a DC power source and supplies an AC drive current to the spindle motor, and this spindle motor. A magnetic disk device comprising: a current limiting element connected in series between a drive circuit and the DC power source. (2) The spindle motor drive circuit includes a transistor bridge circuit whose DC side terminal is connected to a DC power supply and whose AC side terminal is connected to the spindle motor, and an anode side transistor constituting the transistor bridge circuit. Registration of a utility model characterized by comprising a control circuit that sequentially selects transistors on the negative side from different arms, controls one transistor as a switching element, and controls the other transistor as a current control element. A magnetic disk device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5626686U JPS62168800U (en) | 1986-04-15 | 1986-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5626686U JPS62168800U (en) | 1986-04-15 | 1986-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62168800U true JPS62168800U (en) | 1987-10-26 |
Family
ID=30884928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5626686U Pending JPS62168800U (en) | 1986-04-15 | 1986-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168800U (en) |
-
1986
- 1986-04-15 JP JP5626686U patent/JPS62168800U/ja active Pending
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