JP2762674B2 - DC motor control circuit - Google Patents
DC motor control circuitInfo
- Publication number
- JP2762674B2 JP2762674B2 JP10200190A JP10200190A JP2762674B2 JP 2762674 B2 JP2762674 B2 JP 2762674B2 JP 10200190 A JP10200190 A JP 10200190A JP 10200190 A JP10200190 A JP 10200190A JP 2762674 B2 JP2762674 B2 JP 2762674B2
- Authority
- JP
- Japan
- Prior art keywords
- motor
- motor drive
- control circuit
- cleaning
- motor control
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Direct Current Motors (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、DCモータ制御回路に関するものである。Description: TECHNICAL FIELD The present invention relates to a DC motor control circuit.
従来の技術 DCモータをトランジスタスイッチを用いて駆動する方
法が現在広く用いられている。バイポーラトランジスタ
はそのベース電流によってコレクタのドライブ能力が制
御される。2. Description of the Related Art At present, a method of driving a DC motor using a transistor switch is widely used. The bipolar transistor has its collector current controlled by its base current.
これをスイッチ素子として用いる場合ベース電流を過
剰に供給する場合が多い。しかし、ベース電流を過不足
なく供給することが電力効率が最も高いドライブ条件で
ある。When this is used as a switch element, a base current is often supplied excessively. However, supplying the base current without excess or deficiency is the driving condition with the highest power efficiency.
発明が解決しようとする課題 従って、ベース電流を過剰に供給するとドライブ損失
が増加するため、特に高効率を要求される場合はベース
電流を過不足なく設定している。Problems to be Solved by the Invention Therefore, if the base current is supplied excessively, the drive loss increases. Therefore, especially when high efficiency is required, the base current is set without excess or shortage.
しかしながら、前記ドライブ条件ではモータのブラシ
が磨耗し、整流子と整流子の間にブラシの磨耗くずが付
着し、整流子間を短絡して運転不能となることがあっ
た。However, under the drive conditions, the brushes of the motor are worn, and wear debris of the brushes is attached between the commutators, and the commutators are short-circuited to make the operation impossible.
本発明は上記欠点を解決するもので、整流子と整流子
との間に付着したブラシの磨耗くずをクリニングするも
のである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks, and is intended to clean brush debris attached between commutators.
課題を解決するための手段 この目的を達成するために、本発明のDCモータ制御回
路では、モータ駆動信号を発生するモータ駆動信号発生
回路と、モータ駆動中にプリセットしたタイミングにて
整流子クリニング信号を発生するクリニング信号発生回
路と、モータ駆動信号と整流子クリニング信号とによっ
て制御されるモータ駆動電源回路によって構成されてい
る。Means for Solving the Problems In order to achieve this object, a DC motor control circuit of the present invention includes a motor drive signal generation circuit for generating a motor drive signal, and a commutator cleaning signal at a preset timing during motor drive. And a motor driving power supply circuit controlled by a motor driving signal and a commutator cleaning signal.
作用 上記構成により、モータ駆動中にクリニング信号発生
回路にて発生されたクリニング信号により、モータ駆動
電源回路の駆動能力を増加し、整流子と整流子の間に付
着したブラシの磨耗くずを大電流により焼き切ってクリ
ニングするものである。Operation With the above configuration, the driving capability of the motor drive power supply circuit is increased by the cleaning signal generated by the cleaning signal generation circuit during the motor driving, and a large amount of brush wear debris attached between the commutators is removed. It is burned off and cleaned.
実施例 以下、本発明のDCモータ制御回路の実施例について図
面を参照しながら説明する。第１図は本発明のDCモータ
制御回路の実施例の構成図である。第１図において、１
はモータ駆動信号発生器、２はクリニング信号発生器、
３はモータ駆動電源、４はDCモータである。Embodiment Hereinafter, an embodiment of a DC motor control circuit according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a DC motor control circuit according to an embodiment of the present invention. In FIG. 1, 1
Is a motor drive signal generator, 2 is a cleaning signal generator,
Reference numeral 3 denotes a motor drive power supply, and reference numeral 4 denotes a DC motor.
以上のように構成されたDCモータ制御回路について、
以下その動作を説明する。まず、モータ駆動信号発生器
１よりモータ駆動信号がクリニング信号発生器２および
モータ駆動電源３に入力されると、クリニング信号発生
器はタイマがスタートし、プリセットされたクリニング
信号発生時間までカウント動作を始める。また、モータ
駆動電源３は正常なDCモータ４の負荷条件を駆動するの
に十分な駆動力でDCモータ４を駆動する。やがてDCモー
タ運転時にブラシと整流子の摩擦によって消耗したブラ
シくずが整流子間に堆積してくる。そこで、クリニング
信号発生回路２がプリセットされたクリニング信号発生
時間となり、クリニング信号を発生する。クリニング信
号を受けたモータ駆動電源３は最大の駆動能力を発揮す
る。この時、DCモータの整流子間に堆積したブラシくず
を大電流で焼き切ることにより、DCモータをクリニング
する。さらに、DCモータの整流子間に堆積したブラシく
ずが除去される頃クリニング信号発生器２はクリニング
信号を終了し、モータ駆動電源３は再び正常なDCモータ
４の負荷条件を駆動するのに十分な駆動力となり、DCモ
ータ４を駆動する。Regarding the DC motor control circuit configured as described above,
The operation will be described below. First, when a motor drive signal is input from the motor drive signal generator 1 to the cleaning signal generator 2 and the motor drive power source 3, the cleaning signal generator starts a timer and counts up to a preset cleaning signal generation time. start. Further, the motor driving power supply 3 drives the DC motor 4 with a driving force sufficient to drive the load condition of the normal DC motor 4. Eventually, when the DC motor is operating, brush waste consumed by friction between the brush and the commutator accumulates between the commutators. Therefore, the cleaning signal generation circuit 2 reaches a preset cleaning signal generation time and generates a cleaning signal. The motor drive power supply 3 that has received the cleaning signal exhibits the maximum drive capability. At this time, the DC motor is cleaned by burning off the brush dust accumulated between the commutators of the DC motor with a large current. Further, when the brush debris accumulated between the commutators of the DC motor is removed, the cleaning signal generator 2 terminates the cleaning signal, and the motor driving power source 3 is again sufficient to drive the normal DC motor 4 under the load condition. And the DC motor 4 is driven.
発明の効果 本発明のDCモータ駆動回路は、モータ駆動電源の駆動
力を調節して高効率かつ整流子のクリニングを可能にす
るものであり、その実用的効果は大なるものである。ADVANTAGES OF THE INVENTION The DC motor drive circuit of the present invention adjusts the driving force of the motor drive power supply to enable highly efficient and commutator cleaning, and its practical effect is great.
第１図は本発明のDCモータ制御回路の構成図である。 １……モータ駆動信号発生器、２……クリニング信号発
生器、３……モータ駆動電源、４……モータ。FIG. 1 is a configuration diagram of a DC motor control circuit of the present invention. 1 ... motor drive signal generator, 2 ... cleaning signal generator, 3 ... motor drive power supply, 4 ... motor.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H02P 5/04 - 5/26 H02P 7/04 - 7/34──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) H02P 5/04-5/26 H02P 7/04-7/34
Claims (1)
発生回路と、モータ駆動中にプリセットしたタイミング
にて整流子のクリニング信号を発生するクリニング信号
発生回路と、前記モータ駆動信号と、整流子クリニング
信号とによって制御されるモータ駆動電源回路によって
構成されたDCモータ制御回路。1. A motor drive signal generation circuit for generating a motor drive signal, a cleaning signal generation circuit for generating a commutator cleaning signal at a preset timing during driving of the motor, the motor drive signal, and a commutator cleaning. DC motor control circuit composed of a motor drive power supply circuit controlled by signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10200190A JP2762674B2 (en) | 1990-04-18 | 1990-04-18 | DC motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10200190A JP2762674B2 (en) | 1990-04-18 | 1990-04-18 | DC motor control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044790A JPH044790A (en) | 1992-01-09 |
| JP2762674B2 true JP2762674B2 (en) | 1998-06-04 |
Family
ID=14315564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10200190A Expired - Fee Related JP2762674B2 (en) | 1990-04-18 | 1990-04-18 | DC motor control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2762674B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19614673A1 (en) * | 1996-04-13 | 1997-10-16 | Honeywell Ag | Method for operating a DC motor |
| US6191542B1 (en) * | 1999-11-12 | 2001-02-20 | International Business Machines Corporation | Method and apparatus for cleaning a DC motor commutator-brush interface |
| DE102004037918A1 (en) * | 2004-08-05 | 2006-03-16 | Robert Bosch Gmbh | Method for the power-controlled operation of an electric motor on a DC voltage network |
| EP2102864A1 (en) * | 2006-12-14 | 2009-09-23 | Koninklijke Philips Electronics N.V. | Disk drive and tray control mechanism |
| DE102018212553A1 (en) * | 2018-07-27 | 2020-01-30 | Audi Ag | Electrical machine, motor vehicle with an electrical machine and method for operating an electrical machine |
-
1990
- 1990-04-18 JP JP10200190A patent/JP2762674B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH044790A (en) | 1992-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |