JPH01160390A - Driving device of dc non-commutator motor - Google Patents
Driving device of dc non-commutator motorInfo
- Publication number
- JPH01160390A JPH01160390A JP62318114A JP31811487A JPH01160390A JP H01160390 A JPH01160390 A JP H01160390A JP 62318114 A JP62318114 A JP 62318114A JP 31811487 A JP31811487 A JP 31811487A JP H01160390 A JPH01160390 A JP H01160390A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- circuit
- output
- torque
- detection circuit
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000004044 response Effects 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- 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、直流無整流子モータの駆動装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a drive device for a DC commutatorless motor.
従来の技術
従来、この種の直流無整流子モータの駆動装置は、第２
図に示すような構成であった。2. Description of the Related Art Conventionally, this type of drive device for a DC non-commutator motor has a second
The configuration was as shown in the figure.
第２図ではモータに装着されている抵抗１、磁電変換素
子２．３．４および抵抗５の回路の各信号より合成回路
１９で作られた合成信号及び、この合成信号を利用して
現在のモータの回転方向を検出する方向検出回路２１の
信号（この信号をＥＲと記す）、入力端子１８からの正
転・反転・停止を攪令する回転指令信号（これをＥＤと
記す）、および入力端子１７からの加速・減速の指令を
出すトルク指令信号（これをＥＡと記す）の３つの信号
でロジック回路２２により論理をとり、どの回転方向に
トルクを発生させるかを指令する信号（゛これをＥ、Ｐ
と記す）を形成し、・この論理信号を出カドランジスタ
ロ〜１１のどの相に電流を流してやればよいかを指令す
る方向切換回路２０の入力としている。Figure 2 shows a composite signal created by a composite circuit 19 from each signal of the resistor 1, magnetoelectric transducer 2.3.4, and resistor 5 installed in the motor, and a current signal using this composite signal. A signal from the direction detection circuit 21 that detects the rotational direction of the motor (this signal is referred to as ER), a rotation command signal from the input terminal 18 that commands normal rotation, reverse rotation, and stop (this is referred to as ED), and an input. A logic circuit 22 performs logic on three signals, including a torque command signal (hereinafter referred to as EA) that issues commands for acceleration and deceleration from the terminal 17, and outputs a signal that commands in which direction of rotation torque is generated. E, P
This logic signal is used as an input to the direction switching circuit 20 which instructs which phase of the output transistor 11 the current should flow.
この時、ＥＲ，ＥＤ、ＥＡ、ＥＰの各論理値は次のよう
に表わされる。At this time, the logical values of ER, ED, EA, and EP are expressed as follows.
ＥＰ＝ＥＤ −ＥＡ＋ＥＲ−ＥＡ ・・・・・・
（１）（ただし、ＥＲ，ＥＡは、各々、
ＥＲ，ＥＡの反転論理値である。）
また、モータの駆動部は、出力トランジスタのＶＣＥ電
圧を検出するＶＣ！検出回路２５と、それに対応した電
圧で、モータの電源回路２６の電圧を制御する制御回路
２３とで構成され、これによってたとえば、１００ＫＨ
ｚ発振回路２４からの入力とＶＣＥ検出回路２５からの
入力とを比較し、電機子コイル１３．１４．１５に流れ
る電流が少ない時には、出カドランジスタロ〜１１のＶ
ＣＥは大きく、制御回路２３を通してモータの電源電圧
も低く、コイルに流れる電流が多い時には、出力トラン
ジスタのＶＣＥは小さ（、制御回路２３を通してモータ
の電源電圧を高くなる様にしている。この様に出力トラ
ンジスタのＶＣ！電圧を低（抑えることによってモータ
の駆動装置全体の消費電力を小さく抑えている。EP=ED-EA+ER-EA...
(1) (However, ER and EA are the inverted logical values of ER and EA, respectively.) Also, the motor drive section has a VC! which detects the VCE voltage of the output transistor. It is composed of a detection circuit 25 and a control circuit 23 that controls the voltage of the motor power supply circuit 26 with a corresponding voltage.
The input from the z oscillation circuit 24 and the input from the VCE detection circuit 25 are compared, and when the current flowing through the armature coil 13, 14, 15 is small, the V of the output transistor ~ 11 is
When CE is large and the power supply voltage of the motor is low through the control circuit 23, and a large amount of current flows through the coil, the VCE of the output transistor is small (the power supply voltage of the motor is increased through the control circuit 23. In this way, By keeping the VC! voltage of the output transistor low, the power consumption of the entire motor drive device is kept low.
発明が解決しようとする問題点
このような従来の構成では、モータが正転している状態
で、回転指令により正転から反転に移行する、いわゆる
ブレーキモード時、現在の回転方向に対して最大のトル
クがかかりブレーキがかかる。Problems to be Solved by the Invention In such a conventional configuration, when the motor is rotating in the normal direction and the motor is in a so-called brake mode, in which the motor changes from normal rotation to reverse rotation in response to a rotation command, the maximum torque is applied and the brakes are applied.
この状態では例えば出力トランジスタで動作しているト
ランジスタのＶＣＥが大きく、動作していないトランジ
スタのＶＣＥが小さくなっているため、制御回路２３を
通してモータの電源も最大トルクに必要な電流を供給す
る能力のある電圧ではなく、このため逆転状態になった
時、その応答性が悪いという問題があった。In this state, for example, the VCE of the operating output transistor is large and the VCE of the non-operating transistor is small, so that the motor power supply through the control circuit 23 also has the ability to supply the current necessary for maximum torque. Because the voltage is not constant, there is a problem in that the response is poor when a reversed state occurs.
本発明は、このような問題点を解決するもので、モータ
の回転が正転から反転に移行するブレーキモード時に回
転方向検出信号：ＥＲと、どの回転方向にトルクを発生
するかを指令する信号二ＥＰとの排他的論理和をとるこ
とによって、ＶＣＥ回路の出力を強制的に十分低い電圧
に落とし、制御回路を通して、モータの電源電圧を最大
トルクに必要な電流を流せる能力を持つ電位に保ち、逆
転時のモータの応答性を高めることを目的とするもので
ある。The present invention solves these problems, and uses a rotation direction detection signal: ER and a signal that instructs in which rotation direction torque is generated during the brake mode in which the motor rotation changes from normal rotation to reverse rotation. By taking the exclusive OR with the two EPs, the output of the VCE circuit is forcibly reduced to a sufficiently low voltage, and through the control circuit, the motor power supply voltage is maintained at a potential that has the ability to flow the current required for maximum torque. The purpose of this is to improve the responsiveness of the motor during reverse rotation.
問題点を解決するための手段
この問題を解決するために本発明は、回転指令が正転か
ら反転に移行するブレーキモード時、回転方向検出信号
：ＥＲと、どの回転方向にトルクを発生するかを指令す
る信号：ＥＰをそれぞれ入力とする排他的論理和をとり
、前記出力をＶＯＲ検出回路の出力と接続したものであ
る。Means for Solving the Problem In order to solve this problem, the present invention uses a rotation direction detection signal: ER to determine in which rotation direction torque is generated when the rotation command changes from normal rotation to reverse rotation in the brake mode. A signal for commanding: Exclusive OR is performed with EP as input, and the output is connected to the output of the VOR detection circuit.
作用
この構成により、回転指令が正転から反転に移行するブ
レーキモード時、排他的論理和により、ＶＣＥ検出回路
の出力を強制的に十分低い電圧に落とし、制御回路を通
してモータの電源電圧をブレーキモード時、最大トルク
に必要な電流を流せる能力を持つ電位に保ち、逆転に対
する応答性を高めることとなる。Effect: With this configuration, when the rotation command is in the brake mode where the rotation command changes from normal rotation to reverse rotation, the output of the VCE detection circuit is forcibly reduced to a sufficiently low voltage by exclusive OR, and the power supply voltage of the motor is changed to the brake mode through the control circuit. At this time, the potential is maintained at a level that allows the current required for maximum torque to flow, increasing responsiveness to reversal.
実施例
第１図は本発明の一実施例による直流無整流子モータの
駆動装置であり、第２図示の従来例との相違点は排他的
論理和回路２７および制御トランジスタ２８を設けたこ
とである。Embodiment FIG. 1 shows a drive device for a DC non-commutator motor according to an embodiment of the present invention, and the difference from the conventional example shown in FIG. 2 is that an exclusive OR circuit 27 and a control transistor 28 are provided. be.
次に回路動作を詳細に説明する。Next, the circuit operation will be explained in detail.
まず、磁電変換素子２，３．４の信号を利用して、合成
回路１９で作られた合成信号及び同合成信号を利用して
、回転方向を検出する方向検出回路２１の出力信号（Ｅ
Ｒ）、正転・反転・停止を指令する入力端子１８から入
力される回転指令（ＥＤ）、加速・減速の指令を出す入
力端子１７からのトルク指令（ＥＡ）の３つの信号で、
ロジック回路２２によって論理をとり、このロジック回
路２２でどの回転方向にトルクを発生させるかを指令す
る信号（ＥＰ）を形成し、これにより、出カドランジス
タロ〜１１に電流を流し、モータを回転させている。First, the output signal (E
R), a rotation command (ED) input from the input terminal 18 that commands forward rotation, reverse rotation, and stop, and a torque command (EA) from the input terminal 17 that commands acceleration and deceleration.
The logic circuit 22 performs logic, and the logic circuit 22 forms a signal (EP) that instructs in which direction of rotation torque should be generated.This causes current to flow through the output transistors ~11 and rotate the motor. I'm letting you do it.
また、出力トランジスタのＶＣＥをＶＣ！検出回路２５
で検出し、それに対応した電圧を入力とする制御回路２
３を通して、電機子コイル１３〜１５に流れる電流に依
存してモータの電源電圧を変動させている。Also, set the VCE of the output transistor to VC! Detection circuit 25
control circuit 2 which detects the detected voltage and inputs the corresponding voltage.
3, the power supply voltage of the motor is varied depending on the current flowing through the armature coils 13 to 15.
この状態において、例えば回転指令が正転から反転に変
わるブレーキモード時、回っている回転方向に逆方向の
最大のトルクがかかり、ブレーキがかかる。In this state, for example, in a brake mode in which the rotation command changes from normal rotation to reverse rotation, the maximum torque in the opposite direction is applied to the rotating direction of rotation, and the brake is applied.
この間、回転方向検出信号ＥＲとどの方向にトルクを発
生させるかを指令する信号ＥＤとの排他的論理和をとり
、制御トランジスタ２８をオンにすることにより、ＶＣ
Ｅ検出回路２５の出力を強制的に十分低い電圧に落とし
、制御回路２３を通して電源回路２６を制御し、モータ
の電源を最大トルクに必要な電流を供給する能力を持つ
電位に保つ。During this time, the exclusive OR of the rotational direction detection signal ER and the signal ED that instructs in which direction torque is to be generated is performed, and the control transistor 28 is turned on.
The output of the E detection circuit 25 is forcibly reduced to a sufficiently low voltage, and the power supply circuit 26 is controlled through the control circuit 23 to maintain the motor power supply at a potential capable of supplying the current necessary for maximum torque.
発明の効果
以上実施例で説明した様に本発明によれば、ブレーキモ
ード時、モータの電源電圧を強制的に最大トルクに必要
な電流を供給する能力を持つ電位、 に保持するよう
に構成したので、ブレーキモード時、逆転に対するモー
タの応答性を高め実用上支障のないレベルに設定でき、
その実用的価値は大きい。Effects of the Invention As explained in the embodiments above, according to the present invention, in the brake mode, the power supply voltage of the motor is forcibly held at a potential capable of supplying the current necessary for maximum torque. Therefore, when in brake mode, the response of the motor to reverse rotation can be increased and set to a level that does not cause any problems in practical use.
Its practical value is great.
第１図は本発明の一実施例にかかる直流無整流子モータ
の駆動装置回路構成ブロック図、第２図は従来の直流無
整流子モータの駆動装置の回路構成ブロック図である。
１．５．・・・・・・抵抗、２，３．４・・・・・・磁
電変換素子、６，７，８．９，１０．１１．２８・・・
・・・トランジスタ、１３．１４．１５・・・・・・電
機子コイル、１６：・・・・・電源端子、１７・・・・
・・トルク指令入力端子、１８・・・・・・回転指令入
力端子、１９・・・・・・合成回路、２０・・・・・・
方向切換回路、２１・・・・・・方向検出回路、２２・
・・・・・ロジック回路、２３・・・・・・制御回路、
２４・・・・・・１００ＫＨｚ発振回路、２５・・・・
・・ＶＣＥ検出回路、２６・・・・・・電源回路、２７
・・・・・・排他的論理和回路。FIG. 1 is a block diagram of a circuit configuration of a drive device for a DC non-commutator motor according to an embodiment of the present invention, and FIG. 2 is a block diagram of a circuit configuration of a conventional drive device for a DC non-commutator motor. 1.5. ...Resistance, 2,3.4...Magnetoelectric conversion element, 6,7,8.9,10.11.28...
...transistor, 13.14.15...armature coil, 16:...power terminal, 17...
...Torque command input terminal, 18...Rotation command input terminal, 19...Composition circuit, 20...
Direction switching circuit, 21...Direction detection circuit, 22.
...Logic circuit, 23 ... Control circuit,
24...100KHz oscillation circuit, 25...
...VCE detection circuit, 26...Power supply circuit, 27
...Exclusive OR circuit.
Claims (1)
タと、前記出力トランジスタのうち最も小さいエミッタ
・コレクタ間の電圧Ｖ＿Ｃ＿Ｅを検出するＶ＿Ｃ＿Ｅ検
出回路と、前記Ｖ＿Ｃ＿Ｅ検出回路の出力電圧を入力と
してモータの電源を制御する回路と、回転方向を検出す
る方向検出回路と、前記出力トランジスタを切り換えど
の方向にトルクを発生させるかを決定する方向切換回路
と、前記方向検出回路の出力と前記方向切換回路の信号
とを入力として、前記Ｖ＿Ｃ＿Ｅ検出回路の出力を規制
する排他的論理和回路を具備したことを特徴とする直流
無整流子モータの駆動装置。An output transistor that supplies current to the armature coils of multiple phases, a V_C_E detection circuit that detects the smallest emitter-collector voltage V_C_E among the output transistors, and a motor power supply using the output voltage of the V_C_E detection circuit as input. a direction detection circuit that detects the direction of rotation, a direction switching circuit that switches the output transistor to determine in which direction torque is generated, and an output of the direction detection circuit and a signal of the direction switching circuit. What is claimed is: 1. A drive device for a DC non-commutator motor, comprising: an exclusive OR circuit that receives as input and regulates the output of the V_C_E detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62318114A JP2537929B2 (en) | 1987-12-16 | 1987-12-16 | DC non-commutator motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62318114A JP2537929B2 (en) | 1987-12-16 | 1987-12-16 | DC non-commutator motor drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01160390A true JPH01160390A (en) | 1989-06-23 |
| JP2537929B2 JP2537929B2 (en) | 1996-09-25 |
Family
ID=18095648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62318114A Expired - Fee Related JP2537929B2 (en) | 1987-12-16 | 1987-12-16 | DC non-commutator motor drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2537929B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58159684A (en) * | 1982-03-17 | 1983-09-22 | Fuji Electric Co Ltd | Control system for commutatorless motor |
| JPS6055885A (en) * | 1983-09-06 | 1985-04-01 | Matsushita Electric Ind Co Ltd | Magnetic recorder/reproducer |
-
1987
- 1987-12-16 JP JP62318114A patent/JP2537929B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58159684A (en) * | 1982-03-17 | 1983-09-22 | Fuji Electric Co Ltd | Control system for commutatorless motor |
| JPS6055885A (en) * | 1983-09-06 | 1985-04-01 | Matsushita Electric Ind Co Ltd | Magnetic recorder/reproducer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2537929B2 (en) | 1996-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |