JPS63127297U - - Google Patents
Info
- Publication number
- JPS63127297U JPS63127297U JP1987019633U JP1963387U JPS63127297U JP S63127297 U JPS63127297 U JP S63127297U JP 1987019633 U JP1987019633 U JP 1987019633U JP 1963387 U JP1963387 U JP 1963387U JP S63127297 U JPS63127297 U JP S63127297U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- oscillation
- transistor switch
- oscillation circuit
- brushless
- 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
- 230000010355 oscillation Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案の実施例を示す回路図、第２図
は第１図の実施例で用いる発振回路の出力波形を
示す波形図、第３図は従来の駆動回路を示す回路
図である。
１……直流電源、３……発振回路、４……発振
制御回路、５……結合回路、Ｌ１，Ｌ２……ステ
ータコイル、ＴＲ１〜ＴＲ４……トランジスタ、
ＩＣ１，ＩＣ２……演算増幅器、Ｈ……ホール素
子、ＩＣ３……タイマ用集積回路、Ｒ１〜Ｒ６…
…抵抗、Ｃ１，Ｃ２……コンデンサ。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a waveform diagram showing the output waveform of the oscillation circuit used in the embodiment of Fig. 1, and Fig. 3 is a circuit diagram showing a conventional drive circuit. . 1... DC power supply, 3... Oscillation circuit, 4... Oscillation control circuit, 5... Coupling circuit, L1, L2... Stator coil, TR1 to TR4... Transistor,
IC1, IC2... operational amplifier, H... Hall element, IC3... timer integrated circuit, R1 to R6...
...Resistor, C1, C2...Capacitor.
Claims (1)
タコイルの電流をオンオフするトランジスタスイ
ツチと、ロータの位置に応じて前記トランジスタ
スイツチをオンオフ制御する駆動制御回路とを備
えたブラシレス直流フアンモータ駆動回路におい
て、 発振回路と、 定常回転指令が与えられた時には前記発振回路
の発振を停止させ、回転速度変更指令が与えられ
た時に前記発振回路を発振させるように制御する
発振制御回路と、 前記発振回路が発振を停止している時には前記
トランジスタスイツチを前記駆動制御回路により
定められる導通期間の全期間に亘つて導通させ、
前記発振回路が発振した時には該発振回路の出力
に同期させて前記トランジスタスイツチをオンオ
フさせるように前記トランジスタスイツチを前記
発振回路に結合する結合回路とを具備したことを
特徴とするブラシレス直流フアンモータ駆動回路
。 (2) 前記発振回路の発振周波数は可聴周波数域
外に設定されていることを特徴とする実用新案登
録請求の範囲第１項に記載のブラシレス直流フア
ンモータ駆動回路。[Claims for Utility Model Registration] (1) A transistor switch that turns on and off the current of two or more phases of stator coils and the stator coils of each phase, and a drive control circuit that turns on and off the transistor switch according to the position of the rotor. A brushless DC fan motor drive circuit comprising: an oscillation circuit; and controlling the oscillation circuit to stop oscillation when a steady rotation command is given and to oscillate the oscillation circuit when a rotation speed change command is given. an oscillation control circuit; when the oscillation circuit stops oscillating, the transistor switch is made conductive throughout a conduction period determined by the drive control circuit;
A brushless DC fan motor drive comprising: a coupling circuit that couples the transistor switch to the oscillation circuit so that the transistor switch is turned on and off in synchronization with the output of the oscillation circuit when the oscillation circuit oscillates. circuit. (2) The brushless DC fan motor drive circuit according to claim 1, wherein the oscillation frequency of the oscillation circuit is set outside the audible frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987019633U JPS63127297U (en) | 1987-02-13 | 1987-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987019633U JPS63127297U (en) | 1987-02-13 | 1987-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63127297U true JPS63127297U (en) | 1988-08-19 |
Family
ID=30814403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987019633U Pending JPS63127297U (en) | 1987-02-13 | 1987-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63127297U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6098888A (en) * | 1983-11-04 | 1985-06-01 | Natl Aerospace Lab | Controller of dc motor |
-
1987
- 1987-02-13 JP JP1987019633U patent/JPS63127297U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6098888A (en) * | 1983-11-04 | 1985-06-01 | Natl Aerospace Lab | Controller of dc motor |