JPS58204791A - Drive device for motor - Google Patents

Abstract

PURPOSE:To simplify the structure of a motor by processing signals form two magnetoelectric transducers for detecting the rotary position of a motor via three differential amplifiers, and driving a motor coil, thereby reducing the number of the transducers. CONSTITUTION:Two Hall elements 11, 13 for detecting the rotor position are provided at 120 deg. interval at a brushless motor which has a rotor made of a permanent magnet 10 and a stator made of coils L11-L13. The output signals are applied to differential amplifiers 20, 22, the reverse phase output of the amplifier 10 and the output of the amplifier 22 are applied to the third differential amplifier 21, the outputs of which are inputted to an arithmetic circuit 23, which calculates to drive stator coils L11-L13. Accordingly, two Hall elements are provided, even if the number is less than the conventional one, the rotaty position can be accurately detected, and the number of terminals of the Hall elements and integrated circuits IC can be deleted.

Description

【発明の詳細な説明】 本発明に、ブラシレスモータを回転ＪＩ！Ａ期させる際
に用いて好適なモータ駆動装置に関する。[Detailed Description of the Invention] The present invention uses a brushless motor to rotate JI! The present invention relates to a motor drive device suitable for use in A-phase.

テープレコーダやＶＴＲの如き妹気鱈音再生裂［１にお
いて、磁気テープ七足行避ぜるために直九モータが使用
ざｎている。ｌたレコードプレーヤにおいても、ターン
テーブルを回転態動させるために直流モータが使用さｎ
ている。このように、直流モータは各種電子機器に多用
さｎているが、その動作原理全第１図について説明する
。In sound reproduction systems such as tape recorders and VTRs, a straight nine motor is used to move the magnetic tape. Even in record players, a DC motor is used to rotate the turntable.
ing. As described above, DC motors are widely used in various electronic devices, and the principle of operation thereof will be explained in detail in FIG.

直流モータ１において、Ｓ憔及びＮ極の水久祿石２．３
はステータ？１−ＷＩＩ賊する。電億子コイルＬＩ　ｓ
　”２　、Ｌ３は、ロータ（図示せ丁うと一体に回転す
るものであって、それぞｎの一端ｒｌ：整流子４．５．
６にｉ絖ぢｎている。なお各優流子４．５．６は、ブラ
シ７．８に対し摺動可能ＫＷＩｌｈｙ！、さｎ、ブラシ
７．８にはそｎぞｎｉＥ極性及び負憾性の電源電圧か供
給ぢｎる。In the DC motor 1, the S and N pole Mizuku stones 2.3
Is it a stator? 1-WII stealth. Denshi Coil LI s
2, L3 rotates integrally with the rotor (not shown), and one end rl of n: commutator 4.5.
I'm wearing it at 6. In addition, each Yurukon 4.5.6 can slide against the brush 7.8 KWIlhy! , and the brushes 7.8 are supplied with power supply voltages of negative polarity and negative polarity, respectively.

上述の如＠溝造の直流モータｌでは、Ｓ第２からＮ使３
へ同う磁力巌によって輪状磁界（ＲａｄｉａｌｆＬｅｌ
ｄ　）が形底される。゛そして紙機コイルＬ、〜Ｌ３が
図示のｖＯさ位置にある時、ブラシ７．８に菟ｗ４圧が
供給式ｎると、元丁篭慎子コイルＬ。In the above-mentioned DC motor by Mizozo, the S2 to N3
The ring-shaped magnetic field (RadialfLel) is created by the same magnetic force.
d) is shaped. ``And when the paper machine coils L, ~L3 are in the vO position shown in the figure, when 菟W4 pressure is supplied to the brush 7.8, the former coil L.

→Ｌ２に電流が流ｎる。従って電機子コイルＬ、、１１
２　から磁力巌が発生し、この−カーとＳ憾２からＮ惚
３へ同う一刀巌との知父によって回転トルりが発生する
。故Ｖこロータは図示の位置からｐ９こ時肘方同へ回転
する。この紹来、ブラシ７と牟訛子４とが！＃触しｆｃ
１！で、ブラシ８とｆｄ子５との接触が断ｆｃ几、仄す
でブラシ８と察冗子６と刀λ接触する。故Ｖｃ亀憬子コ
イルＬ１　とＬ３とに酸流が流几、区憬子コイルＬ１１
”３小ら発生する磁力線によって、ロータが東に時６↑
方回へ回転する。→Current flows through L2. Therefore, armature coil L, , 11
A magnetic force is generated from 2, and rotational torque is generated due to the interaction between this car and the same Itto Iwao from S 2 to N 3. The rotor rotates from the position shown in the figure to the elbow direction at this time. In this introduction, Brush 7 and Mukanko 4! #Touch fc
1! Then, the contact between the brush 8 and the fd 5 is broken, and the brush 8 and the fd 6 come into contact with each other. Acid flow flows through the late Vc Kame Yuko coil L1 and L3, Gu Yuko coil L11
``The rotor moves eastward due to the magnetic field lines generated from 3.
Rotate in both directions.

上述の動作は１醸仄行わｎ、電機子コイルＬ２→Ｌ、、
Ｌ、→ＬＩ、更にに機コイルＬ３→Ｌ１　、Ｌ３→Ｌ！
と苑れた後、再び図示の状態に復帰するう丁なわちロー
タが時耐方回へ一回転したことになり、鑞源亀圧が供給
されている間、上述のＶ口＠回転動作が繰送して行わｎ
る。The above operation is performed for 1 time, armature coil L2→L,...
L, → LI, further machine coil L3 → L1, L3 → L!
After this, the rotor returns to the state shown in the figure, which means that it has made one full rotation in the direction of rotation, and while the source pressure is being supplied, the above-mentioned V-port @ rotational movement continues. forward and carry out
Ru.

しかし上述のｙＯ＠構遺の直流モータｌでは、ブラシ７
．８が４紙したり、火花放電ｅこよる篭気旧フイズ〃・
発生Ｔる。またｉ１１造が複雑でりること等の埋田に工
って、現在では第乏１図に示す卯きフラジレス＠苑モー
タ〃為多用３Ｂでいる。However, in the DC motor l of the above-mentioned yO@structure, the brush 7
．． 8 is 4 paper, spark discharge e is echoing, and the old fiz.
Occurrence. In addition, due to the complexity of the i11 structure, we now use a 3B flangeless motor as shown in Figure 1.

丁なわち、ロータに８憾とＮ匣に嘴＠δれ之水久−石１
υ刀１固定延ｎ、ステータにコイルＬ、＋（１、Ｌ目、
９口が１２０°間隔で設けらｎている。またステータの
一部でロータの外周部の近房に！丁、上記永久磁石１０
に対し所定の間隙を隔てて、コータの回転位ｆｉｌ検出
するための磁′邂変ＰＡ素子（ｆｌｌえばホール素子）
が１２０°間隔で設けら几でいる。Ding, that is, 8 regrets on the rotor and a beak on the N box @ δ Reno Mizuku - stone 1
υ sword 1 fixed length n, coil L on the stator, + (1, Lth,
Nine ports are provided at 120° intervals. Also, a part of the stator is near the outer circumference of the rotor! Ding, the above permanent magnet 10
A magnetic PA element (Hall element) for detecting the rotational position of the coater is placed at a predetermined gap from the
are arranged at 120° intervals.

なお、ボール素子Ｉｔ、１２．１３は、ステータに固定
ざｎていて、ロータと一体に回転することはない。Note that the ball elements It, 12, 13 are fixed to the stator and do not rotate together with the rotor.

半導体集槓回路工０７．（、各ホール素子１１．１２．
１，３から出力さｎる検出信号によって、各コイルＬＩ
Ｏｔ　　Ｌｎ％　Ｌ１２　に流ｎる′１流を切戻える之
めのものである。なおホール素子１１は、１番及び２番
端子に接続さｎｌその検出１ｇ号炉壇°陽回路２０に供
給さ几る。ホール素子１２は、３査及び４番端子に接続
さｎ％その検ｌ！ｆ：１１Ｊ号が増幅回路２１に供給き
ｎる。ホール素子１３は、５査及び６査端子に接続さｎ
ｌその検′出侶号が増幅回路２２に洪鮒ざｎる。なお２
３＆工論畦回路でりって、各増幅回路２０〜２２の出力
信号によって、入寂の出力回ｙＩ２５．２６．２７に１
哄仄制御１ｄ号を供給するためのものである。甲力回路
２５．２６．２７は、コイル、”ＩＱｓ　　ＬＩｌ、Ｌ
１２　に所定のｔ　ＭＴ。Semiconductor integrated circuit engineer 07. (, each Hall element 11.12.
Each coil LI
This is intended to cut back the '1 flow flowing to Ot Ln% L12. Note that the Hall element 11 is connected to the No. 1 and No. 2 terminals and is supplied to the detection circuit 20 of the No. 1g furnace. The Hall element 12 is connected to the third terminal and the fourth terminal. f: No. 11J is supplied to the amplifier circuit 21. The Hall element 13 is connected to the 5th and 6th terminals.
The detected signal is sent to the amplifier circuit 22. Note 2
3 & engineering circuit, and depending on the output signal of each amplifier circuit 20 to 22, the output circuit yI25.26.27 of 1 is output.
This is for supplying the control unit 1d. The instep circuit 25.26.27 is a coil, "IQs LII, L
12 for a given t MT.

全流丁ためのものである。It's for the entire class.

そして各コイルＬ＋（１，Ｌ目、Ｌ１２　　を流ｎる電
流量の制御、候言丁ｎはモータの回転速度の制御は、論
理回路２３に供給でれる制御信号（図示せず）によって
行わｎる。丁なゎち、第２図に示すモータにおいては、
ロータの回転位ｆが各ホール素子１１．１２．１３ｖｃ
よって検出ざｎ、その回転速度の制＃は、いわゆる界磁
制御によって行ゎｎる。The amount of current flowing through each coil L+ (1st, Lth, L12) and the rotational speed of the motor are controlled by a control signal (not shown) supplied to the logic circuit 23. In the motor shown in Figure 2,
The rotational position f of the rotor is 11, 12, 13vc for each Hall element.
Therefore, the detection speed and the rotation speed are controlled by so-called field control.

上述の如く！［成さ１．たモータ及びその駆動装置にお
いて、元ずホール素子１１によって８極の磁界が検出さ
れる。そして１３図ＣＡＩの１８０°間に示す卯き電圧
信号ｔｒｕが、増幅回路２ｏに供給さｎる。１九ロータ
と一体に永久磁石１ｏが時訂方同に回転することによっ
て、ホール素子１２のシ圧偏４　ｖｖば〆３図ＣＢ＋に
示す如く最初の１０００間に２いて貴慢性になる。この
帖釆７番端子の出力がＨレベルになり、８ｆ３１１子の
出力がＬレベルになって、コイルＬ　ｒ　＋−）Ｌ　ｒ
　ｚ　Ｋ　電流１ｔ７）ｉ流ｆｎる。As mentioned above! [Construction 1. In the motor and its drive device, an eight-pole magnetic field is originally detected by the Hall element 11. Then, the voltage signal tru shown between 180 degrees of CAI in FIG. 13 is supplied to the amplifier circuit 2o. As the permanent magnet 1o rotates integrally with the rotor 19, the pressure bias of the Hall element 12 becomes 2 during the first 1000 hours as shown in Figure 3 CB+. The output of this button No. 7 terminal becomes H level, the output of 8f311 becomes L level, and the coil L r +-)L r
z K current 1t7) i current fnru.

なお９番端子は遊端となって、コイルＬ１３には４流が
Ｉｔｆ、ｎない。Note that the No. 9 terminal is a free end, and there is no fourth current Itf,n in the coil L13.

永久磁石ＩＯは継続して回転するので、ホール素子１２
の電圧信号Ｖｖが次第に高レベルになり。Since the permanent magnet IO continues to rotate, the Hall element 12
The voltage signal Vv gradually becomes high level.

ホール素子１３の電圧信号ｖｗの電圧レベルが次第に低
レベルになる。このＭ来７番端子はＨレベル、９番端子
がＬレベルになって、コイルＬｌｌ→Ｌ　１３　Ｋ　［
流工２が流れる。なお８番端子は遊端となって、コイル
Ｌ＋２には１！、机が流ｎない。The voltage level of the voltage signal vw of the Hall element 13 gradually becomes a low level. After this M, the 7th terminal becomes H level, the 9th terminal becomes L level, and the coil Lll → L 13 K [
Ryuko 2 flows. Note that terminal No. 8 is a free end, and 1 is connected to coil L+2! , the desk is not clean.

以下永久磁石１ｏの回転に対応してコイルＬＬ２→ＬＩ
３、コイルＬｌｌ→Ｌ口、更にコイルＬ　Ｉ３−＋Ｌ目
、コイ”’　Ｌ　ｌ　３　→Ｌ　ｌ　２と＊Ｒ’ＮＬＲ
工３．　　工４、工Ｓ、工６が流ｎ、ロータが継続的に
時耐方同に口転動動ざｎる。Below, coil LL2 → LI corresponds to the rotation of permanent magnet 1o.
3. Coil Lll → L mouth, further coil L I3-+L eye, carp"' L l 3 → L l 2 and *R'NLR
Engineering 3. As gears 4, S, and 6 flow, the rotors continue to rotate at the same time.

しかし上述の如き購遣の駆動装置では、回転位置ｒ検出
するために筒価なホー・ル素子力ｉ３１回も必要でるる
。更に各ホール素子から出カ石ｎる′域圧１ｇ勺を１梁
構ｔｇｌｒＦ６エＣ（ハ）の増幅回路に個別に惧オビし
なけｎばならＴ、このため集積回路ＩＣの入ヵ端子、い
わゆる入力ビンｒ多ｃｉ設けなげｎ、ばならない。However, in the purchased driving device as described above, the Hall element force i31 times is required to detect the rotational position r. Furthermore, the output voltage of 1 g from each Hall element must be individually applied to the amplifier circuit of the one-beam structure TGLRF6C (C). Therefore, the input terminal of the integrated circuit IC, So-called input bins must be provided.

依って本発明の目的とするところは、モータ反びそのｔ
Ａ動会直の部品点数音低減すること同時に、モータの回
転ｉ動紮確実に行い得る駆動装置？提供することにある
。Therefore, it is an object of the present invention to
Is there a drive system that can reduce the number of moving parts and noise, and at the same time ensure the rotation of the motor? It is about providing.

以下、本発明を適用したモータ駆動装置の一実力例を第
４図？参照して説明する。なお従来かＪと同一動作ｔな
子部品については同一の符号又は記号孕付し、その欧明
’を１略する。An example of the performance of a motor drive device to which the present invention is applied is shown in Fig. 4 below. Refer to and explain. In addition, child parts that operate in the same way as those in conventional J are given the same reference numerals or symbols, and the ``O'' is omitted.

本発明全週用し之モータの駆動装置では、２個のホール
素子１１．１３でモータの回転位置全検出することがで
きる。なお除去可能なホール索子は、卑にホール索子１
２のみではなく曲のものでろってよいが、２１面のホー
ル素子Ｖま１２す０間急に配Ｉｔざ几る。In the all-day motor drive device of the present invention, the two Hall elements 11 and 13 can detect the entire rotational position of the motor. Note that the removable hole stringer is basically hole stringer 1.
It may be the one for the song instead of just 2, but the Hall elements on the 21st side are suddenly arranged between V and 12 and 0.

ホール素子１１０電圧信号ｖｕは、増幅回路２０にｇｃ
、楢避几、ホール素子１３°の″電圧侶汚ＶＷμ項嗜賜
回路２２ｖＣ供柘さｎめ。この項Ｃ鴫回品２υは、屋ｖ
Ｊ瑠幅回路に隔成ざＩしているので、−万の出ツノは電
圧信号Ｈｕが出力さｎる。増幅回路２２も差動増幅回路
に＊Ｗ、ａｎ、でいるので、一方の出力端より電圧信号
Ｈｗが出′力され、他方の出力端より電圧信号Ｈｗが出
力される。そして嵯圧侶号ＨｕＨｗは論理回路２３に供
給さｎる。The Hall element 110 voltage signal vu is sent to the amplifier circuit 20 gc
, the voltage of the Hall element 13° is VWμ, and the circuit 22vC is provided.
Since it is isolated from the J-width circuit, the voltage signal Hu is output from the output of -10,000. Since the amplifier circuit 22 is also a differential amplifier circuit *W, an, the voltage signal Hw is outputted from one output terminal, and the voltage signal Hw is outputted from the other output terminal. The pressure signal HuHw is then supplied to the logic circuit 23.

丁なわち、電圧信号ＵＵは第３図（Ａ）に示すｖｕとま
ったく同様の信号でめり、電圧信号Ｈｗ＆ま第３図（０
）に示すｖｗｌｌ！−１つたく同様の信号である。In other words, the voltage signal UU is exactly the same signal as vu shown in FIG. 3(A), and the voltage signal Hw&
) shown in vwll! -One more similar signal.

一方、電圧信号Ｈｕに対し逆位相の電圧信号Ｈｕは、伏
設の瑠輻ｌ！；！ｌ路２１の一方の入力端子、言い換え
ｎｔｄｉ動壇輻回路の非反転入力端子（ト）に供給ざｎ
、電圧信号Ｈｗは増幅回路２１の他方の入力端子、言い
換えｎは慶＠増幅回路の反転入力端子に供給さ几る。こ
こで収りの便宜上、υ０から１０００間尚で電圧１ｇ号
ｖｕとＶ、の位相についてみると、ｖｕカニ０レベヤで
める時、ｖｗは正億性である。On the other hand, the voltage signal Hu, which has the opposite phase to the voltage signal Hu, is an underground signal! ;! One input terminal of the l path 21, in other words, is supplied to the non-inverting input terminal (g) of the ntdi moving circuit.
, the voltage signal Hw is supplied to the other input terminal of the amplifier circuit 21, in other words n is supplied to the inverting input terminal of the amplifier circuit. Here, for the sake of convenience, if we look at the phases of voltage 1g vu and V in the range from υ0 to 1000, when it is determined by vu crab 0 level, vw is positive.

従って上記電圧信号Ｈｕ、Ｈｕはともに０レベルになる
。し刀λしｖｗμ正憾性であるため、壇〜回絽２２から
瑠１隔回昂２Ｌの反転入力端子←）ｅこは正極性の電圧
１ｇ号Ｈｗが供給される。このため壇惺回路２１の出力
端刀１らは、第３（９）（ＢｌのＵａ時における電圧１
ｇ号ｖｖと１つたく同様の信号Ｈｖが得らｎ、論理１！
ｑｌ路２３に供給さｎる。故に０６時に２いては、８番
端子がＬレベルになり、９番端子がＨレベルになって、
コイルＬ（３→Ｌ目　にＩＷｃ工６が流れる。この際７
番端子は遊端となり、コイルＬ１１には電流か流ｎない
、 次に６０°回転した位置では７番端子がＨレベル、８番
端子がＬレベル、９番端子か遊端となυコイルＬｚ　−
＋Ｌｔｚ　　ＫＫ流工１が流ｎ、る。Therefore, the voltage signals Hu and Hu both become 0 level. Since the current λ and vwμ are positive, a voltage 1g of positive polarity Hw is supplied from the platform to the circuit 22 to the inverting input terminal of the circuit 2L. Therefore, the output terminals 1 and the like of the output circuit 21 are the third (9) (voltage 1 at Ua of Bl
A signal Hv similar to g vv is obtained, n, logic 1!
ql is supplied to path 23. Therefore, at 06:00, the 8th terminal becomes L level, the 9th terminal becomes H level,
Coil L (IWc work 6 flows from 3rd to Lth. At this time, 7
The terminal No. 7 becomes a free end, and there is no current in the coil L11. Next, at the position rotated by 60 degrees, the No. 7 terminal becomes an H level, the No. 8 terminal becomes an L level, and the No. 9 terminal becomes a free end, and the υ coil Lz −
+Ltz KK Ryuko 1 is Ryu n, Ru.

仄に１２０’回転した位置では、電圧信号ｖｕは正極性
でるり、電圧信号Ｖ、は負極性である。し刀１も電圧信
号ｖｕ、Ｖｗの絶対屓は、互いにほぼ等しい直でるる。At a position slightly rotated by 120', the voltage signal vu has a positive polarity and the voltage signal V has a negative polarity. In the case of the sword 1, the absolute values of the voltage signals vu and Vw are almost equal to each other.

従って増幅回路２１の出力端刀Ｓらは、縞３図串）の１
２０°時に示す如き０レベルの４圧１ｇ号ｖｖが得らｎ
る。故に１２００時においては、７−ｉｆ端子がＨレベ
ルになり、９査畑子がＬレベルになってコイルＬｌｌ→
ＩＪＩ３　に電流Ｙ２が流ｎ々。フよ２ｂ蕾Ａ荀子は遊
端となって、コイルＬ１２・には′電流が流ｎない。Therefore, the output ends of the amplifier circuit 21 are 1
0 level 4 pressure 1g vv as shown at 20° is obtained.
Ru. Therefore, at 1200 o'clock, the 7-if terminal becomes H level, the 9 signal becomes L level, and the coil Lll→
Current Y2 flows through IJI3. The bud 2b becomes a free end, and no current flows through the coil L12.

次に１８０°回転した位置では７番端子が遊端、８番端
子かＨレベル、９番端子がＬレベルとなりコイルＬ１２
→Ｌｔｓ　Ｋ篭流工３が流ｎる。Next, at the position rotated 180 degrees, the No. 7 terminal is the free end, the No. 8 terminal is at H level, and the No. 9 terminal is at L level, and the coil L12
→Lts K Kagoryuko 3 is flowing.

仄に２４０一回転した位置では、電圧信号Ｖｕは負極性
であり、電圧信号ＶＷはθレベルである。At a position that is one full rotation by 240 degrees, the voltage signal Vu has negative polarity and the voltage signal VW is at the θ level.

従って瑠＝ｔｇｌ路２１の一方の入力塙子十にｉｊニア
ｍ圧信号Ｈｕが供給されるので、その出力端からは第３
図の）の２４０°時に示す如き王権性の電圧１百号ｖｙ
が侍られる。改に２４０°時ｅζおいては、８番端子が
Ｈレベルにな９７査端子がＬレベルになってコイルＬ＋
２→Ｌ口に亀随工４か流ｎる。なお９番端子に遊端とな
って、コイルＬＩ３には電流が流ｎない。Therefore, since the ij near m pressure signal Hu is supplied to one input of the tgl path 21, the third
Royal voltage 100 vy as shown at 240° in the figure)
is attended. Again, at 240° eζ, the 8th terminal becomes H level, the 97th terminal becomes L level, and the coil L+
2 → Kamezuiko 4 flows into the L mouth. Note that the No. 9 terminal is a free end, and no current flows through the coil LI3.

久に３０Ｕ０回転した位置でに７番端子がＬレベル、８
番端子が遊端、９番端子がＨレベルとなり、コイルＬ１
３→Ｌ口　ＶＣ電流工５′が流ｎる。At the position where 30U0 has been rotated for a long time, terminal 7 becomes L level and 8
The No. terminal is the free end, the No. 9 terminal is at H level, and the coil L1
3→L port VC electrician 5' flows.

（ＫＶこ３◇００回転した位置では、電圧信号ｖｕは０
レベルでめり、電圧１Ｍ号ＶＷは正億性でろる。(At the position where KV is rotated 3◇00, the voltage signal vu is 0.
It's a level, and the voltage 1M VW is ridiculous.

従ってｊＷ幅回路２１の他方の入力端←）には、亀圧信
号Ｈｗ７％供鮒さｎることになジ、その出力端からは第
３図（Ｂｌの３６００時に示す如き負極性の電圧信号ｖ
ｕが得らｎる。故に３６０°時においては、９番端子か
Ｈレベルになり、８査端子がＬレベルになってコイルＬ
Ｌ３→Ｌ１２　に一流工６が流几る。Therefore, the other input terminal of the jW width circuit 21 is supplied with a turtle pressure signal Hw7%, and from its output terminal a negative polarity voltage signal as shown at 3600 o'clock of Bl is supplied from the output terminal. v
u gets n. Therefore, at 360 degrees, the 9th terminal becomes H level, the 8th terminal becomes L level, and the coil L
First class engineer 6 flows from L3 to L12.

なお７番端子は遊端となって、コイルＬ目には電流が流
７″Ｌない。Note that the No. 7 terminal is a free end, and no current flows through the Lth coil.

丁なわち、上述のＶ口く購１Ｅｉ、ざｎたモータの駆動
装置によれば、２個のホール素子１１．１３から傅らｎ
る電圧信号Ｖｖ、ＶＷから、電圧信号Ｈ１１とＨｗとを
得て瑠幅回Ｍ２１に供ｍし、Ｈｕ十ＨＷ＝＝Ｖ７なる１
圧侶号を得る。また本装置によｎは、ホール素子１３？
除去し、２個のホール素子１１．１２であってもＨｕ＋
Ｈｖ：ＶＷなる或圧旧号が傅らｎることは容易に理解で
さる。更にホール素子１１’（Ｈ味云し、２個のホーぷ
素子１２．１３でｒ あって％　”　Ｖ　＋　ＨＷ＝＝　Ｖ　ｙなる電圧１ｇ
号を得ること炉でさる。そして上記何几の場合であって
も、２１−のホール素子’ｚ１２ＬＪ’間隔で設けるこ
とにより、曲の１個分の電圧信号を瑠−回路２Ｌから倚
ることかでさる。That is, according to the drive device of the above-mentioned V-type motor, two Hall elements 11 and 13 are connected to each other.
From the voltage signals Vv and VW, voltage signals H11 and Hw are obtained and applied to the width circuit M21, and 1 is obtained as Hu + HW = = V7.
Obtained the title of pressure officer. In addition, according to this device, n is the Hall element 13?
Even if two Hall elements 11 and 12 are removed, Hu+
It is easy to understand that Hv: VW is an old name. In addition, the Hall element 11' (H) and the two Hope elements 12.
Monkey in the furnace to get the number. Regardless of the number of circuits mentioned above, by providing 21-Hall elements at intervals of 'z12LJ', the voltage signal for one song can be absorbed from the R-circuit 2L.

孜に上述の如きモータの小＠＠−直によｎ、ば、ホール
素子の叔で減らせるのみでケく、ボ４図に明らかなよう
に集積回路ＩＣの端子数音も減ら丁ことができる。なお
上述した実施汐１１においては、永久磁石１０は円板状
に図示さ几ているが、この形状に限定さ几るものでは決
してない。例えば永久磁石１０を環状に形成し、こｎ全
ロータの外周部に固足し７ｔｊｆｌｌｌｌ造でよい。更
にホール素子に候えて、透磁至の良好なコアーにコイル
全巻回した構造のものでもよい。In addition, the noise of the motor as described above can only be reduced by using a Hall element, and as is clear from Figure 4, the number of sounds at the terminals of the integrated circuit IC can also be reduced. can. In the above-mentioned embodiment 11, the permanent magnet 10 is illustrated as having a disk shape, but the shape is by no means limited to this shape. For example, the permanent magnet 10 may be formed into an annular shape and fixed to the outer circumference of the entire rotor. Furthermore, in addition to the Hall element, a structure in which a coil is entirely wound around a core having excellent magnetic permeability may also be used.

本発明は上述の如く、モータの回転位ｔｉ検出する磁゛
亀変換素子の素子数を削減したにもかかわらず、モータ
の回転位置ｋｆ確に検出することかできる上に、その構
造が簡単になる。更に集積回路にて購成さｎたモータの
駆切装置の端子数を削１′：・９゜ 減できるので、上述したホール素子の削減と相疾って、
大巾なコストダウンが期待でさる。As described above, the present invention is capable of accurately detecting the rotational position kf of the motor even though the number of elements of the magneto-mechanical conversion element for detecting the rotational position ti of the motor is reduced, and the structure thereof is simple. Become. Furthermore, the number of terminals of the motor cutting device purchased using an integrated circuit can be reduced by 1':・9°, so in parallel with the reduction in the number of Hall elements mentioned above,
Significant cost reductions are expected.

【図面の簡単な説明】[Brief explanation of drawings]

第１図Ｖゴ＠流モータの秘動原哩全示す構造図、ｊ−、
２凶ンよ址米のクラ／レス七−ゲの駆。力装寡ケ小丁四
糸南、 」ど上広」 ４Ｌ３図は回路・助作ｒ下丁或圧信号の波形図、第１図
、・ｉ杢発明？虐用したモータの駆動装置の一μ施声ｊ
と示す回路図でめる。 １０・・・モータの永久磁石、”１１．”１２、Ｌ１２
・・・モータのコイル、ＩＣ・・・集積回路、２０．２
１．２２・・差動増幅回路、２３・・・論理回路、２５
．２６．２７−・・出力Ｉｇｌ＃！１、Ｖｕ、ＶＶ、Ｖ
Ｗ、、、ｚ圧１ｇ−４Ｆ。 代理人　ｆ埋土　薄　１）利　宰Fig. 1 is a structural diagram showing the entire secret mechanism of the V-type motor, j-,
2. It's a bad thing, it's a waste of time. 4L3 diagram is a waveform diagram of the circuit/assistant r lower stage or pressure signal, Figure 1, ``Do Kamihiro'' One μ shout of the abused motor drive device
This is shown in the circuit diagram. 10...Motor permanent magnet, "11."12, L12
...Motor coil, IC...Integrated circuit, 20.2
1.22...Differential amplifier circuit, 23...Logic circuit, 25
．． 26.27-...Output Igl#! 1, Vu, VV, V
W,,,z pressure 1g-4F. Agent f Udo Susuki 1) Rizai

Claims (1)

【特許請求の範囲】[Claims] モータの回転位Ｉｆｔ検出する第１及び第２の磁電変換
素子と、上記第１及び第２の磁電変換素子から出力され
る回転位置検出信号がそｎ、ぞｎ個別に入力される第１
及び第２の増幅回路と、上記第１及び舅２の増幅回路か
ら得らｎる出力信号を電圧的に処理する第３の増幅回路
と、上記第１及び第２の増幅回路から得らｎる出力信号
及び上記第３の増＠回路から祷らする出力信号によって
モータコイルに対応して設けらｎ１上記制御信号が供給
さ几る出力回路とをそれぞれ具備したこと全特徴とする
モータｍ動装置。first and second magneto-electric transducers for detecting the rotational position Ift of the motor; and a first magneto-electric transducer to which the rotational position detection signals output from the first and second magneto-electric transducers are individually input.
and a second amplifier circuit, a third amplifier circuit for voltage-processing the output signals obtained from the first and second amplifier circuits, and a third amplifier circuit that processes the output signals obtained from the first and second amplifier circuits in terms of voltage. and an output circuit provided corresponding to the motor coil to which the control signal is supplied by the output signal from the third multiplication circuit. Device.