JPH03120679U - - Google Patents
Info
- Publication number
- JPH03120679U JPH03120679U JP2982090U JP2982090U JPH03120679U JP H03120679 U JPH03120679 U JP H03120679U JP 2982090 U JP2982090 U JP 2982090U JP 2982090 U JP2982090 U JP 2982090U JP H03120679 U JPH03120679 U JP H03120679U
- Authority
- JP
- Japan
- Prior art keywords
- drive
- coil
- drive coil
- signal
- magnet device
- 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
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Brushless Motors (AREA)
Description
第１図はこの考案に係る偏平型ブラシレスモー
タの一例を示す略線的断面図、第２図は駆動コイ
ルの配置状態を示す平面図、第３図は駆動回路の
ブロツク図、第４図は第３図の一部のブロツク図
、第５図はこの考案によるモータの動作を説明す
るための波形図、第６図は従来の偏平型ブラシレ
スモータの一例を示す略線的断面図、第７図はそ
の駆動コイルの配置状態を示す平面図、第８図は
磁石装置の斜視図、第９図は駆動コイルの接続状
態を説明する回路図である。
１……プリント基板、３ａ〜３ｆ……駆動コイ
ル、４……回転子、６……磁石装置、１０ａ〜１
０ｆ……センサコイル、１２……波形整形回路、
１３……タイミング信号発生回路、２０……速度
検出回路。
Fig. 1 is a schematic cross-sectional view showing an example of a flat brushless motor according to this invention, Fig. 2 is a plan view showing the arrangement of drive coils, Fig. 3 is a block diagram of the drive circuit, and Fig. 4 is a 3 is a partial block diagram, FIG. 5 is a waveform diagram for explaining the operation of the motor according to this invention, FIG. 6 is a schematic sectional view showing an example of a conventional flat type brushless motor, and FIG. 8 is a perspective view of the magnet device, and FIG. 9 is a circuit diagram illustrating the connection state of the drive coils. 1... Printed circuit board, 3a-3f... Drive coil, 4... Rotor, 6... Magnet device, 10a-1
0f...sensor coil, 12...waveform shaping circuit,
13...Timing signal generation circuit, 20...Speed detection circuit.
Claims (1)
駆動コイルが環状に配置され、この駆動コイルに
対応して環状の磁石装置が回転自在に設置され、
上記駆動コイルに順次、駆動電流が切り換えられ
て供給されることにより、上記磁石装置を取り付
けた回転子が回転するように構成された偏平型ブ
ラシレスモータにおいて、 プリント基板の駆動コイル装着面とは反対面に
、各駆動コイルに対応してプリント配線されてな
るセンサコイルと、 このセンサコイルからの信号が入力され、波形
整形された信号が出力される波形整形回路と、 この波形整形回路からの信号から、上記駆動コ
イルに対する駆動電流の切り換えをなすタイミン
グ信号を発生するタイミング信号発生回路とを有
してなることを特徴とする偏平型ブラシレスモー
タ。[Claims for Utility Model Registration] A plurality of flat spiral drive coils are arranged in a ring on a printed circuit board, and a ring-shaped magnet device is rotatably installed in correspondence with the drive coil,
In a flat brushless motor configured such that a rotor to which the magnet device is attached rotates by sequentially switching and supplying drive current to the drive coil, the motor is opposite to the drive coil mounting surface of the printed circuit board. A sensor coil printed on the surface corresponding to each drive coil, a waveform shaping circuit to which the signal from the sensor coil is input and a waveform shaped signal is output, and a signal from the waveform shaping circuit. A flat brushless motor comprising: a timing signal generation circuit for generating a timing signal for switching a drive current for the drive coil;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2982090U JPH03120679U (en) | 1990-03-24 | 1990-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2982090U JPH03120679U (en) | 1990-03-24 | 1990-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120679U true JPH03120679U (en) | 1991-12-11 |
Family
ID=31532567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2982090U Pending JPH03120679U (en) | 1990-03-24 | 1990-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120679U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937884B2 (en) * | 1977-01-18 | 1984-09-12 | 日本電気株式会社 | Modulation differential characteristic temperature compensation circuit for frequency modulator |
| JPS6484465A (en) * | 1987-09-28 | 1989-03-29 | Hitachi Ltd | Rotary head device |
-
1990
- 1990-03-24 JP JP2982090U patent/JPH03120679U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937884B2 (en) * | 1977-01-18 | 1984-09-12 | 日本電気株式会社 | Modulation differential characteristic temperature compensation circuit for frequency modulator |
| JPS6484465A (en) * | 1987-09-28 | 1989-03-29 | Hitachi Ltd | Rotary head device |
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