JPS60207489A - Rotor position detector of commutatorless motor - Google Patents
Rotor position detector of commutatorless motorInfo
- Publication number
- JPS60207489A JPS60207489A JP59064026A JP6402684A JPS60207489A JP S60207489 A JPS60207489 A JP S60207489A JP 59064026 A JP59064026 A JP 59064026A JP 6402684 A JP6402684 A JP 6402684A JP S60207489 A JPS60207489 A JP S60207489A
- Authority
- JP
- Japan
- Prior art keywords
- rotor position
- high frequency
- oscillator
- resistor
- rotor
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/185—Circuit arrangements for detecting position without separate position detecting elements using inductance sensing, e.g. pulse excitation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、２相以上の相を持つ多相式無整流子電動機の
交流磁気結合方式によるロータ位置検出器及び検出用セ
ンサに係シ、よシ簡単な検出器及び回路を提供しようと
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rotor position detector and detection sensor using an AC magnetic coupling method for a polyphase non-commutated motor having two or more phases. It is an attempt to provide a simple detector and circuit.
従来例の構成とその問題点
従来の無整流子電動機の相電流切換用ロータ検出方法と
しては、ホトダイオードとホトトランジスタ及び光遮断
用切欠き円板より構成される光学式ロータ位置検出法や
、ホール素子やホールＩＣを用いてロータ磁石位置を検
出する磁気式ロータ位置検出法及び、第１図に示す様な
交流磁気結合法等がある。第１図に於いて二１はロータ
シャフト、２はロータシャフト１に一体的に取付けられ
、１８ｏ０の凸部を持つ磁性材料より作られた切欠き円
板、３は前記切欠き円板２の外周上の１２ｏ０間隔に配
置された３ケのＵ字形コア、４ａ、 ４ｂ。Conventional configurations and their problems Conventional rotor detection methods for phase current switching of non-commutator motors include an optical rotor position detection method consisting of a photodiode, a phototransistor, and a notched disk for light shielding, and a hole detection method. There is a magnetic rotor position detection method that detects the rotor magnet position using an element or a Hall IC, and an AC magnetic coupling method as shown in FIG. 1. In FIG. 1, 21 is a rotor shaft, 2 is a notched disk integrally attached to the rotor shaft 1 and made of a magnetic material and has a convex portion of 18o0, and 3 is a notched disk of the notched disk 2. Three U-shaped cores, 4a, 4b, arranged at 12o0 intervals on the outer circumference.
４Ｃは各々コア３ａ、３ｂ、３ｃに巻回され、かつ高周
波電圧を印加された励磁コイル、５ａ、ｓｂ。Excitation coils 5a and sb 4C are wound around the cores 3a, 3b and 3c, respectively, and to which a high frequency voltage is applied.
６Ｃは各々コア３ａ、３ｂ、３ｃに巻回され、かつ前記
励磁コイル４ａ、４ｂ、４ｃによって発生した磁束を受
信し誘起電圧を発生する受信コイルである。第２図に各
コイルの電圧波形を示す。第２図ａは励磁コイル４ａ、
４ｂ、４ｃに印加される励磁電圧波形であり、ｂ、ｃ、
ｄは各々、受信コイル５ａ、ｃｓｂ、５ｃに誘起する誘
起電圧ｖ５ａ。6C is a receiving coil that is wound around the cores 3a, 3b, and 3c, respectively, and receives the magnetic flux generated by the excitation coils 4a, 4b, and 4c, and generates an induced voltage. Figure 2 shows the voltage waveform of each coil. FIG. 2a shows the excitation coil 4a,
This is the excitation voltage waveform applied to 4b, 4c, and b, c,
d is an induced voltage v5a induced in the receiving coils 5a, csb, and 5c, respectively.
ｖ６ｂ、■６ｏの波形であり、切欠き円板２の凸極部に
対向している受信コイルの誘起電圧が大きく、又、■５
Ｂ ＋ ”５１） ＋ ”５ ｃハ各々、ロータシャ
フト１の回転角θに対し１２ｏ０づつ位相の異なる波形
が得られる。この”５ａ ＋ｖ６ｂ ＋ｖ５Ｃの電圧波
形を整流すればロータ位置検出信号が得られるがここで
は本発明と直接関係が無いので説明を省略する。The waveforms are v6b and ■6o, and the induced voltage in the receiving coil facing the convex pole of the notched disk 2 is large, and ■5
B + "51) + "5c) Waveforms whose phases differ by 12o0 with respect to the rotation angle θ of the rotor shaft 1 are obtained. A rotor position detection signal can be obtained by rectifying this voltage waveform of "5a +v6b +v5C, but since it is not directly related to the present invention, the explanation will be omitted here.
以上、従来方式のロータ位置検出法の構成について説明
したが、そのいずれも、ロータ位置検出を行なうだめの
センサー（例えばホトトランジス乙 ホール素子、コイ
ル等）や切欠き円板が必要であり、コスト的にも寸法的
にも組立工数的にも、無整流電動機の太き々部分を占め
る場合が多く、ロータ位置検出センサーを必要としない
電動機（例えばブラシ付直流電動機）に対して不利とな
っている。The configurations of conventional rotor position detection methods have been explained above, but all of them require sensors (e.g., phototransistors, Hall elements, coils, etc.) and cutout disks to detect the rotor position, and are costly. In terms of space, dimensions, and assembly time, they often occupy the largest part of non-commutated motors, which is disadvantageous compared to motors that do not require rotor position detection sensors (for example, brushed DC motors). There is.
さらに、２相式無整流子電動機に限れば、ステータコイ
ルに高周波電圧を重畳し、その重畳した高周波電圧がロ
ータ磁石の有無又はロータ磁石に貼ったうすい磁性板又
は導電性非磁性板の有無により振幅が変化する事を利用
する方法（特公昭５８−３７７９０号公報）が有り、こ
の方法ではロータ位置検出センサーを必要としない効果
が有るものの従来は２相式電動機への適用に限定されて
おり、効率の良い３相以上の多相式電動機への適用は不
可能であった。Furthermore, in the case of two-phase non-commutator motors, a high frequency voltage is superimposed on the stator coil, and the superimposed high frequency voltage is affected by the presence or absence of a rotor magnet or the presence or absence of a thin magnetic plate or conductive non-magnetic plate attached to the rotor magnet. There is a method (Japanese Patent Publication No. 58-37790) that utilizes the change in amplitude, and although this method has the effect of not requiring a rotor position detection sensor, it has been limited to application to two-phase motors. However, it was impossible to apply it to an efficient three-phase or more polyphase motor.
発明の目的
本発明は上記欠点に鑑みなされたものであり、ロータ位
置検出センサを不要とし、かつ３相以上の多相式無整流
子電動機にも適用できるロータ位置検出回路を提供しよ
うとするものである一０発明の構成
本発明は、ロータ磁石と、ロータ磁石上に貼付けられた
磁性体又は導電性非磁性体の薄板と、各相毎に中間点を
有し、かつスター結線された多相ステータ巻線と、正弦
波状高周波発振器と、カップリングコンデンサと、前記
高周波電圧を検出するためのコイル又は抵抗より構成さ
れており、ロータ位置検出センサを不要とし、かつ適用
範囲の広いロータ位置検出回路を提供できる。Purpose of the Invention The present invention has been made in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a rotor position detection circuit that does not require a rotor position detection sensor and can be applied to a three-phase or more polyphase non-commutated motor. 10 Structure of the Invention The present invention comprises a rotor magnet, a thin plate made of a magnetic material or a conductive non-magnetic material pasted on the rotor magnet, and a star-connected multi-layer structure having an intermediate point for each phase. Consisting of a phase stator winding, a sinusoidal high-frequency oscillator, a coupling capacitor, and a coil or resistor for detecting the high-frequency voltage, rotor position detection eliminates the need for a rotor position detection sensor and has a wide range of applications. We can provide the circuit.
実施例の説明
以下、本発明に係る実施例を図面と共に説明する。尚、
電動機形式として３相４極タイプの電動機を例にとり以
下説明を行なう。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described with reference to the drawings. still,
The following explanation will be given using a three-phase, four-pole type motor as an example.
第３図は３相４極タイプの電動機の一例であり、６はロ
ータ磁石、７ａ１．７ａ２はＡ相ステータ巻線、７ａ１
，７ｂ２はＢ相ステータ巻線、７ Ｃ１，７Ｃ２はＣ相
ステータ巻線であり、０点を中性点としてスター結線を
されている。８はロータ磁石６の表面上に貼られ、かつ
機械角９０°（電気角１８０°）の幅を有した２枚の薄
い磁性板又は導電性非磁性板であり、２枚の板は１８０
°位置に貼られている。Figure 3 shows an example of a three-phase, four-pole type electric motor, where 6 is a rotor magnet, 7a1.7a2 is an A-phase stator winding, and 7a1
, 7b2 are B-phase stator windings, and 7C1 and 7C2 are C-phase stator windings, which are star-connected with the 0 point as the neutral point. Reference numeral 8 denotes two thin magnetic plates or conductive non-magnetic plates that are pasted on the surface of the rotor magnet 6 and have a width of 90 degrees mechanical angle (180 degrees electrical angle), and the two plates have a width of 180 degrees.
It is affixed at the ° position.
第４図は、本発明に係るロータ位置検出回路の一実施例
である。９は相電流切換用トランジスタであり、１ｏは
高周波（数１０ ＫＨｚ−数１００ ＫＨｚ ）の正弦
波電圧発振器である。発振器１０の一端は、抵抗１１，
１２．１３及びカップリングコンデンサ１４，１５．１
６を介して、各々ステータ巻線、７ａ、７ｂ、７ｃの中
間点（Ｄ点、Ｅ点、Ｆ点）に接続されている。発振器１
０の他の一端は、カップリングコンデンサ１７を介して
ステータコイルの中性点０点に接続されている。この様
な構成に於いてカップリングコンデンサ１４． １６．
１６゜１７の容量を十分大きくしておけば、ステータ巻
線７ ａ １ 、７ ｂ １ 、７ ｃ １が高周波阻
止用リアクトルとして作用するため、発振器１ｏの発振
電圧ｖｏｓｃは殆んど各々抵抗１１，１２．１３とステ
ータコイル７ Ｒ２、ｙ ｂ２ 、７ Ｃ２に印加され
る。FIG. 4 shows an embodiment of the rotor position detection circuit according to the present invention. 9 is a phase current switching transistor, and 1o is a high frequency (several 10 KHz to several 100 KHz) sine wave voltage oscillator. One end of the oscillator 10 is connected to a resistor 11,
12.13 and coupling capacitors 14, 15.1
6 to intermediate points (points D, E, and F) of the stator windings 7a, 7b, and 7c, respectively. Oscillator 1
The other end of 0 is connected to the neutral point 0 of the stator coil via a coupling capacitor 17. In such a configuration, the coupling capacitor 14. 16.
If the capacitances of the oscillators 16 and 17 are made sufficiently large, the stator windings 7 a 1 , 7 b 1 , and 7 c 1 will act as high-frequency blocking reactors, so that the oscillation voltage vosc of the oscillator 1o will almost always be the same as that of each resistor 11. , 12.13 and the stator coils 7 R2, y b2 , 7 C2.
１８は整流回路、１９．２０は三差動スイッチング回路
であり、トランジスタ２１，２２．２３の内ベース電位
が最も低いトランジスタが導通し、又、トランジスタ２
４，２６．２６の内ベース電位が最も高いトランジスタ
が導通する。抵抗２７゜２８はバイアス用抵抗である。18 is a rectifier circuit, 19.20 is a three-differential switching circuit, in which the transistor with the lowest base potential among transistors 21, 22, and 23 is conductive;
4, 26, and 26, the transistor with the highest base potential becomes conductive. Resistors 27 and 28 are bias resistors.
２９，３０．３１は各々高周波信号の検出基準点を作る
ためのインダクタンス及び抵抗であり、各々Ｌ（ハ）、
Ｒ１（ロ）。29, 30, and 31 are inductance and resistance for creating a detection reference point for high-frequency signals, respectively, and L (c),
R1 (b).
Ｒ２（Ｑ）の値を持っている。It has a value of R2(Q).
第６図に、高周波の正弦波電圧のベクトル図を示す。Ｈ
Ｇ Ｆｉ発振器９の発振電圧”ｏｓｃである。FIG. 6 shows a vector diagram of a high frequency sinusoidal voltage. H
The oscillation voltage of the G Fi oscillator 9 is "osc".
ここで第４図に於いて発振器１ｏ→抵抗１１→力ツプリ
ングコンデンサ１４→Ａ相ステータ巻線７ａ２→カップ
リングコンデンサ１７→発振器１゜のループの正弦波状
高周波電圧のベクトル図を考えて見る。カップリングコ
ンデンサ１４，１７０容量を充分に大きくしておけば発
振器１ｏの発振電圧ｖｏｓｃは殆んど抵抗１１とステー
タコイル？ ａ ２に印加される事となる。ここでステ
ータコイル７ａ２の抵抗分に印加される電圧を”ＭＲ＋
インダクタンス分に印加される電圧をｖＭＬとし、さ
らに抵抗１１に印加されを電圧をｖＲとする。この時の
高周波電圧のベクトル図は、第６図の、Ｇ点→Ｘ点→に
点→Ｈ点→Ｇ点で表わす事ができる。Here, in FIG. 4, consider the vector diagram of the sinusoidal high frequency voltage of the loop of oscillator 1o→resistor 11→power spring capacitor 14→A phase stator winding 7a2→coupling capacitor 17→oscillator 1°. If the capacitances of the coupling capacitors 14 and 170 are made sufficiently large, the oscillation voltage VOSC of the oscillator 1o will be almost the same as that of the resistor 11 and the stator coil. It will be applied to a2. Here, the voltage applied to the resistance of the stator coil 7a2 is "MR+
The voltage applied to the inductance is vML, and the voltage applied to the resistor 11 is vR. The vector diagram of the high frequency voltage at this time can be represented by point G→point X→point→point H→point G in FIG.
今ここで第３図に於いて、薄板８は磁性体板であるとし
、ステータ巻線７ａ２との相対角度関係が第３図の如く
であるとすると巻線７ ａ ２と磁性板８が対向してい
るためステータコイル７８２の高周波に対するインダク
タンスが最大となり、従って前記インダクタンスに印加
される電圧ｖＭＬ も最大となる。（もし薄板８が導電
性非磁性体板ならばうず電流効果によりステータ巻線７
ａ ２のインダクタンスは最小となシ、従って前記イ
ンダクタンスに印加される電圧ｖＭＬ は最小となる。Now, in FIG. 3, if the thin plate 8 is a magnetic plate and the relative angle relationship with the stator winding 7a2 is as shown in FIG. 3, then the winding 7a2 and the magnetic plate 8 are facing each other. Therefore, the inductance of the stator coil 782 to high frequencies becomes maximum, and therefore the voltage vML applied to the inductance also becomes maximum. (If the thin plate 8 is a conductive non-magnetic plate, the stator winding 7
The inductance of a2 is minimum, so the voltage vML applied across said inductance is minimum.
）第６図に於いてＫＨ？′ｉｖＭＬが最大の場合を表示
している。) In Figure 6, KH? The case where 'ivML is maximum is displayed.
次に第３図に於いてロータが機械角で９００回転した場
合を考えて見ると、ステータコイル７ａ２に対向するロ
ータ上に磁性板８が対向しなくなり、従ってステータ巻
線７ａ２のインダクタンスは最小となりｖＭＬも最小と
なる。（薄板８が導電性非磁性体板ならばｖＭＬは最大
となる。）第５図に於いてに’ＨはｖＭＬが最小の場合
を表示している。さらにこの場合、Ｘ点の電位は第６図
に於いてＸ′点に移動している。Next, considering the case where the rotor rotates 900 mechanical angles in FIG. 3, the magnetic plate 8 no longer faces the rotor facing the stator coil 7a2, and therefore the inductance of the stator winding 7a2 becomes minimum. vML is also minimized. (If the thin plate 8 is a conductive non-magnetic material plate, vML will be maximum.) In FIG. 5, 'H' indicates the case where vML is minimum. Furthermore, in this case, the potential at point X has moved to point X' in FIG.
ここで、インダクタンス２９及び抵抗３０．３１の値を
適当に選べば１点の電位は第６図に示す如く、Ｘ′点に
非常に近づける事ができる。従って第４図の１点からＸ
点を見た場合、ロータの回転に対応して高周波電圧のベ
クトルは第６図に於いてＩＸから、殆んどゼロの値に近
いＩＸ’まで変化させ不事ができる。Here, if the values of the inductance 29 and the resistance 30.31 are appropriately selected, the potential at one point can be made very close to the point X' as shown in FIG. Therefore, from one point in Figure 4,
When looking at the points, it can be seen that in response to the rotation of the rotor, the vector of the high frequency voltage changes from IX in FIG. 6 to IX', which is almost at a value of zero.
第６図ａに、ロータ回転角θに対する１点とＸ点間の高
周波電圧波形の変化の様子を示す。FIG. 6a shows how the high frequency voltage waveform changes between point 1 and point X with respect to the rotor rotation angle θ.
以上の説明と全く同様に、電気角で１２０°シフトされ
た形で１点とＹ点間及び１点とＸ点間の高周波電圧波形
が得られ、各々、第６図のｂ及びＣに変化の様子を示す
。In exactly the same way as the above explanation, high frequency voltage waveforms between point 1 and point Y and between point 1 and point X are obtained in a form shifted by 120 degrees in electrical angle, and change to b and c in Fig. 6, respectively. The situation is shown below.
この後の高周波信号の処理の方法は、抵抗２７゜２８に
よって１点に適当なバイアス電圧を与え、整流回路１８
によって整流し、その出力電圧の大きさによって三差動
スイッチング回路１９及び２゜を動作させ、最終的に相
電流切換用トランジスタ群９をスイッチングする。本実
施例に於いては、整流回路１８や差動スイッチング回路
１９．２０をトランジスタやダイオードを用いて説明し
たが、ＯＰアンプやディジタルＩＣを用いても構成でき
る事は明らかである。The subsequent method of processing the high frequency signal is to apply an appropriate bias voltage to one point using the resistor 27 and 28, and then use the rectifier circuit 18.
The three differential switching circuits 19 and 2 degrees are operated depending on the magnitude of the output voltage, and finally the phase current switching transistor group 9 is switched. In this embodiment, the rectifier circuit 18 and the differential switching circuits 19 and 20 are explained using transistors and diodes, but it is clear that they can also be constructed using an OP amplifier or a digital IC.
又、本実施例に於いては、電動機形式として３相４極式
電動機を例にとって説明したが、各相のステータコイル
の中間点（各相コイルの半分は高周波信号阻止用リアク
トルとして使用するだけであるから、巻数的に正確に中
間的である必要はない。）の引出しが可能であり、かつ
スター結線されているステータ巻線であれば、３相４極
式に限られるものでない。In addition, in this embodiment, a 3-phase 4-pole motor was used as an example of the motor type, but the midpoint of the stator coils of each phase (half of each phase coil is only used as a reactor for blocking high frequency signals) Therefore, it is not necessary that the number of turns be precisely intermediate.) The stator winding is not limited to the three-phase four-pole type as long as it can be drawn out and is star-connected.
さらに、ロータ磁石上に貼付けられた導電性非磁性体の
薄板８０代りに、薄板８と同一形状に銀やアルミ等の細
粉を含んだ導電性塗料を塗布又は印刷をしても同様の効
果が得ら・れる事も明白である。Furthermore, the same effect can be obtained by applying or printing a conductive paint containing fine powder of silver, aluminum, etc. in the same shape as the thin plate 8 instead of the conductive non-magnetic thin plate 80 pasted on the rotor magnet. It is also clear that it can be obtained.
発明の詳細
な説明してきた様に、本発明に係るロータ位置検出回路
は、ロータ位置検出センサを必要とせず、かつ、従来例
の様に２相式電動機に限定される事なく、効率の良い両
方向通電方式の３相以上の電動機にも適用が可能である
。As described in detail, the rotor position detection circuit according to the present invention does not require a rotor position detection sensor, is not limited to two-phase electric motors as in the conventional example, and is highly efficient. It can also be applied to a three-phase or more bidirectional current-carrying motor.
従って、無整流子電動機を構成する上で、ロータ位置検
出部のコスト及び寸法を大巾に低減し、かつその応用範
囲も広く、その工業的価値は非常に大きいものがある。Therefore, when constructing a commutatorless electric motor, the cost and size of the rotor position detecting section can be greatly reduced, and its application range is wide, and its industrial value is extremely large.
明に係る電動機の正面図、第４図は本発明に係る回路図
、第６図は第４図の各部の電圧ベクトル図、第６図は第
４同各部の電圧波形図である。
６・・・・・・ロータ磁石、７・・・・・・ステータ巻
線、８・・・・・・ロータ磁石上に貼られた磁性体又は
導電性非磁性体の薄板、１０・・・・・・高周波正弦波
発振器、１４゜１５．１６．１７・・・・・・カップリ
ングコンデンサ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
ｃＬ
第２図
第４図FIG. 4 is a circuit diagram according to the present invention, FIG. 6 is a voltage vector diagram of each part of FIG. 4, and FIG. 6 is a voltage waveform diagram of each part of FIG. 4. 6...Rotor magnet, 7...Stator winding, 8...Thin plate of magnetic material or conductive non-magnetic material pasted on the rotor magnet, 10... ...High frequency sine wave oscillator, 14゜15.16.17...Coupling capacitor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure cL Figure 2 Figure 4
Claims (2)
磁性体の薄板を電気角で１８００間隔に貼９合わせたロ
ータ磁石と、各相コイル毎に中間点を有し、かつスター
結線された中性点を有する多相ステータ巻線と、ステー
タ巻線を付勢するだめの駆動トランジスタ群と、ロータ
位置検出用の正弦波状高周波発振器と、前記高周波発振
器の一端から前記ステータ巻線の各相の中間点に各々接
続された抵抗ＲとカップリングコンデンサＣの直列回路
群と、前記発振器の他端から前記ステータ巻線の中性点
の間に接続されたカップリングコンデンサと、前記抵抗
ＲとカップリングコンデンサＣの直列回路群が接続され
ている側の前記発振器の一端から、他の一端の間に、順
にコイル（インダクタンス分：Ｌ）と第１と第２の抵抗
Ｒ，，Ｒ２を直列接続した直列回路とを備え、前記第１
の抵抗Ｒ１と抵抗Ｒ２の接続点と、前記抵抗Ｒとカップ
リングコンデンサＣとの接続点群との間に発生する高周
波電圧の振幅の変化を、ロータ位置検出信号として用い
るよう構成した無整流子電動機のロータ位置検出回路。(1) A rotor magnet consisting of thin plates of magnetic material or conductive non-magnetic material each having a width of 1800 in electrical angle and pasted together at intervals of 1800 in electrical angle, with a midpoint for each phase coil, and a star connection. a multiphase stator winding having a neutral point, a drive transistor group for energizing the stator winding, a sinusoidal high frequency oscillator for detecting the rotor position, and a sine wave high frequency oscillator for rotor position detection; A series circuit group of a resistor R and a coupling capacitor C each connected to the midpoint of each phase, a coupling capacitor connected between the other end of the oscillator and the neutral point of the stator winding, and the resistor A coil (inductance: L) and first and second resistors R, , R2 are connected in order between one end of the oscillator to which the series circuit group of R and coupling capacitor C is connected and the other end. and a series circuit in which the first
A non-commutator configured to use, as a rotor position detection signal, a change in the amplitude of a high frequency voltage generated between a connection point between the resistor R1 and the resistor R2, and a group of connection points between the resistor R and the coupling capacitor C. Electric motor rotor position detection circuit.
と同じ形状に、ロータ磁石上に導電性塗料を塗布した特
許請求の範囲第１項記載の無整流子電動機のロータ位置
検出回路。(2) The rotor position detection circuit for a commutatorless motor according to claim 1, wherein a conductive paint is applied on the rotor magnet in the same shape as the conductive non-magnetic thin plate attached to the rotor magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064026A JPS60207489A (en) | 1984-03-30 | 1984-03-30 | Rotor position detector of commutatorless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064026A JPS60207489A (en) | 1984-03-30 | 1984-03-30 | Rotor position detector of commutatorless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60207489A true JPS60207489A (en) | 1985-10-19 |
| JPH0546197B2 JPH0546197B2 (en) | 1993-07-13 |
Family
ID=13246216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59064026A Granted JPS60207489A (en) | 1984-03-30 | 1984-03-30 | Rotor position detector of commutatorless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60207489A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0251785A2 (en) * | 1986-07-01 | 1988-01-07 | Conner Peripherals, Inc. | Electric motor control method and apparatus |
| WO1999009645A1 (en) * | 1997-08-18 | 1999-02-25 | Rolf Strothmann | Separately excited electric machine |
| DE4090927B4 (en) * | 1989-06-01 | 2006-09-21 | Papst Licensing Gmbh & Co. Kg | Incorporated position sensor for collectorless DC motor - uses evaluation of currents fed through motor inductances |
| EP2293430A1 (en) * | 2009-09-07 | 2011-03-09 | Technische Universität Darmstadt | Device and method for rotor positioning at low speed or standstill |
-
1984
- 1984-03-30 JP JP59064026A patent/JPS60207489A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0251785A2 (en) * | 1986-07-01 | 1988-01-07 | Conner Peripherals, Inc. | Electric motor control method and apparatus |
| DE4090927B4 (en) * | 1989-06-01 | 2006-09-21 | Papst Licensing Gmbh & Co. Kg | Incorporated position sensor for collectorless DC motor - uses evaluation of currents fed through motor inductances |
| WO1999009645A1 (en) * | 1997-08-18 | 1999-02-25 | Rolf Strothmann | Separately excited electric machine |
| US6366037B1 (en) | 1997-08-18 | 2002-04-02 | Rolf Strothmann | Separately excited electric machine |
| EP2293430A1 (en) * | 2009-09-07 | 2011-03-09 | Technische Universität Darmstadt | Device and method for rotor positioning at low speed or standstill |
| WO2011026988A3 (en) * | 2009-09-07 | 2011-05-19 | Technische Universität Darmstadt | Device and method for determining the rotor position at a low speed or during a standstill |
| US20120229119A1 (en) * | 2009-09-07 | 2012-09-13 | Technische-Universitat Darmstadt | Device and Method for the Detection of the Rotor Position at Low Rotational Speeds or at a Standstill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0546197B2 (en) | 1993-07-13 |
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