JPH03120678U - - Google Patents
Info
- Publication number
- JPH03120678U JPH03120678U JP1990029550U JP2955090U JPH03120678U JP H03120678 U JPH03120678 U JP H03120678U JP 1990029550 U JP1990029550 U JP 1990029550U JP 2955090 U JP2955090 U JP 2955090U JP H03120678 U JPH03120678 U JP H03120678U
- Authority
- JP
- Japan
- Prior art keywords
- current
- brushless
- detects
- magnetic pole
- electric element
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Description
第１図ないし第６図は本考案の実施例で、第１
図は一実施例の構成図、第２図は原理構成図第３
図は他の実施例の構成図、第４図はその他の実施
例の構成図、第５図ａ，ｂは外部検出回路の原理
図とブロツク図、第６図は通電タイミングの説明
図、第７図は従来例の構成図である。
図中、２０は通電コイル、２１は検出コイル、
２２は抵抗、２３はホールＣＴである。
Figures 1 to 6 show embodiments of the present invention.
The figure is the configuration diagram of one embodiment, and Figure 2 is the principle configuration diagram 3.
4 is a block diagram of another embodiment, FIG. FIG. 7 is a configuration diagram of a conventional example. In the figure, 20 is an energizing coil, 21 is a detection coil,
22 is a resistor, and 23 is a Hall CT.
Claims (1)
位置検出手段を備えたことを特徴とするブラシレ
スＤＣモータ。 (2) 通電コイルに対して備えられた電気的素子
により各相電流を検出し、端子電圧から上記電流
による電圧降下成分を差し引き、誘起起電力波形
成分を分離検出するアナログ演算回路を磁極位置
検出手段として備えたブラシレスＤＣモータ。[Claims for Utility Model Registration] (1) A brushless DC motor characterized in that a current-carrying coil is provided with magnetic pole position detection means using an electric element. (2) The magnetic pole position is detected using an analog calculation circuit that detects each phase current using an electric element provided for the current-carrying coil, subtracts the voltage drop component due to the current from the terminal voltage, and separates and detects the induced electromotive force waveform component. Brushless DC motor provided as means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990029550U JPH03120678U (en) | 1990-03-26 | 1990-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990029550U JPH03120678U (en) | 1990-03-26 | 1990-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120678U true JPH03120678U (en) | 1991-12-11 |
Family
ID=31532304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990029550U Pending JPH03120678U (en) | 1990-03-26 | 1990-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002247882A (en) * | 2001-02-21 | 2002-08-30 | Koyo Seiko Co Ltd | Start control method and device for synchronous motor, and operation fluid control motor-driven pump for car drive system using the device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50114526A (en) * | 1974-02-25 | 1975-09-08 | ||
| JPS53136613A (en) * | 1977-04-30 | 1978-11-29 | Toshiba Corp | Controler for commutatorless motor |
| JPS59129559A (en) * | 1983-01-13 | 1984-07-25 | Seiko Epson Corp | Brushless motor |
| JPS62123979A (en) * | 1985-11-07 | 1987-06-05 | Hitachi Ltd | Brushless dc motor |
| JPS62217892A (en) * | 1986-03-17 | 1987-09-25 | Hitachi Ltd | Brushless dc motor |
-
1990
- 1990-03-26 JP JP1990029550U patent/JPH03120678U/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50114526A (en) * | 1974-02-25 | 1975-09-08 | ||
| JPS53136613A (en) * | 1977-04-30 | 1978-11-29 | Toshiba Corp | Controler for commutatorless motor |
| JPS59129559A (en) * | 1983-01-13 | 1984-07-25 | Seiko Epson Corp | Brushless motor |
| JPS62123979A (en) * | 1985-11-07 | 1987-06-05 | Hitachi Ltd | Brushless dc motor |
| JPS62217892A (en) * | 1986-03-17 | 1987-09-25 | Hitachi Ltd | Brushless dc motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002247882A (en) * | 2001-02-21 | 2002-08-30 | Koyo Seiko Co Ltd | Start control method and device for synchronous motor, and operation fluid control motor-driven pump for car drive system using the device |
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