JPH01269821A - Motor rotation control device - Google Patents

Motor rotation control device

Info

Publication number
JPH01269821A
JPH01269821A JP63098622A JP9862288A JPH01269821A JP H01269821 A JPH01269821 A JP H01269821A JP 63098622 A JP63098622 A JP 63098622A JP 9862288 A JP9862288 A JP 9862288A JP H01269821 A JPH01269821 A JP H01269821A
Authority
JP
Japan
Prior art keywords
voltage
circuit
motor
rotation speed
rotary speed
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
Application number
JP63098622A
Other languages
Japanese (ja)
Inventor
Toshihiro Horiuchi
敏弘 堀内
Makoto Okada
誠 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP63098622A priority Critical patent/JPH01269821A/en
Publication of JPH01269821A publication Critical patent/JPH01269821A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N3/00Regulating air supply or draught
    • F23N3/08Regulating air supply or draught by power-assisted systems
    • F23N3/082Regulating air supply or draught by power-assisted systems using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N1/00Regulating fuel supply
    • F23N1/02Regulating fuel supply conjointly with air supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00Signal processing; Details thereof
    • F23N2223/22Timing network
    • F23N2223/26Timing network with capacitors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00Ventilators
    • F23N2233/06Ventilators at the air intake
    • F23N2233/08Ventilators at the air intake with variable speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE:To embody the rotary speed control of a motor with a simple circuit, by entering an output voltage of an amplification circuit and a zero cross point of commercial power source into a charging voltage of a CR timer which starts charge at the time of starting and a comparison circuit and triggering the power control elements of a thyristor or the like from said output signals. CONSTITUTION:A rotary speed of a motor in current use is incorporated as a pulse signal by a rotary speed sensor. The rotary speed is converted into a voltage signal equivalent to the rotary speed by an F/V conversion circuit 3. The voltage is compared with a preset constant voltage value. The differential voltage is amplified by an amplification circuit 10. On the other hand, a CR timer circuit 5, which starts charge with a zero cross point of commercial power source at a starting point, generates charging voltage which is subject to change with time, responding to its phase within the half wave of the commercial power source. When the charging voltage and the output voltage of the amplification circuit are entered into a comparison circuit 15, the circuit outputs the voltage converted into lag time from the zero cross point from the voltage of the amplification circuit. Therefore, a thyristor TRIAC 18, which drives the motor is triggered from this signal, the rotary speed of the motor can be feedback controlled.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は燃焼器具等のファンモータに用いる回転数制御
装置に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotation speed control device for use in fan motors of combustion appliances and the like.

従来の技術 第5図に従来の石油燃焼機の制、御回路を示す。Conventional technology Figure 5 shows the control circuit of a conventional oil combustion machine.

石油燃焼機は、燃焼空気を供給するファンモータ(FM
)と燃料を供給する電磁ポンプ(vp)および点火時に
動作する点火装置(IG)を備えており、これらの負荷
は商用電源に接続されて、制御回路で制御されるリレー
でON10 F Fされるのが一般的である。
Oil-burning machines use a fan motor (FM) to supply combustion air.
), an electromagnetic pump (VP) that supplies fuel, and an ignition device (IG) that operates when ignited, and these loads are connected to a commercial power source and turned ON10 F F by a relay controlled by a control circuit. is common.

発明が解決しようとする課題 しかし、近年、石油燃焼様分野においても、燃焼量の強
・弱を切り換えた制御を行ないたいといった要望があり
、そのためには、ファンモータFMや電磁ポンプVPを
能力可変で制御することが望まれている。
Problems to be Solved by the Invention However, in recent years, even in the field of oil combustion, there has been a desire to control the amount of combustion by switching between strong and weak levels. It is desired to control the

これらの要望に応えるため、電磁ボンダVPにおいては
、供給燃料の一部をバイパスさせて、燃焼量を切り換え
る方式、またファンモータFMにおいてはモータのタッ
プ切シ換えや回転数制御方式が検討されているが、いず
れも、燃料と空気量のバランスを保ちながら制御を行な
う点で課題がある。特に商用電源の電圧変動に対し、燃
料と空気量の変動量が違うため、燃焼のバランスが崩れ
るといった問題点がある。
In order to meet these demands, for the electromagnetic bonder VP, a method of bypassing a portion of the supplied fuel and switching the combustion amount, and for the fan motor FM, a method of motor tap switching and rotation speed control methods are being considered. However, all of them have issues in controlling while maintaining the balance between fuel and air amounts. In particular, there is a problem in that the amount of fluctuation in the amount of fuel and air differs in response to voltage fluctuations in the commercial power supply, causing imbalance in combustion.

本発明は上記従来の問題点に対し、モータの回転数制御
を簡単な回路で実現し、さらに商用電源電圧の変動に対
するモータ回転数の変動度合をプログラマブルに設定で
きる回路を提供することを目的とする。
SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, it is an object of the present invention to provide a circuit that realizes motor rotation speed control with a simple circuit and can programmably set the degree of variation in motor rotation speed with respect to fluctuations in commercial power supply voltage. do.

課題を解決するための手段 上記目的を実現するために本発明は、モータの回転数に
同期したパルス信号を取り込むフォトインタラプタ等の
回転数センサと、前記パルス信号をその周波数に応じた
電圧レベル信号に変換するF/V変換回路と1、この電
圧レベル信号と所定の電圧値との差電圧を増幅する増幅
回路と、この増幅回路の出力電圧を一方の入力に、また
他方の入力には商用電源のゼロクロス点をスタートに充
電を開始するCRタイマの充電々圧を接続した比較回路
とを備え、その出力信号でサイリスタ等の電力制御素子
にトリガを掛け、モータの位相制御を行なう構成とした
ものである。
Means for Solving the Problems In order to achieve the above object, the present invention provides a rotation speed sensor such as a photointerrupter that captures a pulse signal synchronized with the rotation speed of a motor, and a voltage level signal corresponding to the frequency of the pulse signal. 1, an amplifier circuit that amplifies the difference voltage between this voltage level signal and a predetermined voltage value, and the output voltage of this amplifier circuit is connected to one input, and the other input is connected to a commercial It is equipped with a comparator circuit connected to the charge voltage of a CR timer that starts charging at the zero-crossing point of the power supply, and its output signal triggers a power control element such as a thyristor to control the motor phase. It is something.

作  用 上記構成とすることにより、まず、現在のモータの回転
数が回転数センサによってパルス信号として取り込まれ
、F/V変換回路でその回転数に応じた電圧レベル信号
に変換される。そしてこの電圧は、予め設定された定電
圧値と比較され、その差電圧が増幅回路によって増幅さ
れる。したがって目標回転数とのズレが電圧レベルに増
幅されて出力される。一方、商用電源のゼロクロス点を
スタートに充電を開始するCRタイマ回路は、商用電源
の半波内において、その位相に応じて時間的に変化する
充電々圧を発生する。この充電々圧と、増幅回路の出力
電圧を比較回路に入力すると、出力には増幅回路の電圧
が、ゼロクロスからの遅れ時間に変換された出力となる
。すなわち、モータ回転数が目標回転数より低い場合は
遅れ時間が短かく、逆に高い場合は遅れ時間が長い出力
信号が得られる。したがって、この信号でモータを駆動
するサイリスタ、トライアックにトリガを与えると、モ
ータの回転数をフィードバック制御できる。ここで、増
幅回路の増幅率を大きくとると、目標回転数に対するモ
ータ回転数のズレが微少であっても、サイリスタ、トラ
イブックの通電位相の変化が大きく発生し、そのズレを
補正できる。
Operation With the above configuration, first, the current rotational speed of the motor is taken in as a pulse signal by the rotational speed sensor, and is converted into a voltage level signal corresponding to the rotational speed by the F/V conversion circuit. This voltage is then compared with a preset constant voltage value, and the difference voltage is amplified by an amplifier circuit. Therefore, the deviation from the target rotational speed is amplified to a voltage level and output. On the other hand, a CR timer circuit that starts charging starting from the zero-crossing point of the commercial power supply generates a charging pressure that changes over time according to the phase within a half-wave of the commercial power supply. When this charging voltage and the output voltage of the amplifier circuit are input to a comparator circuit, the voltage of the amplifier circuit is converted into the delay time from zero cross and becomes an output. That is, when the motor rotation speed is lower than the target rotation speed, an output signal with a short delay time is obtained, and conversely, when it is higher than the target rotation speed, an output signal with a long delay time is obtained. Therefore, if this signal is used to trigger the thyristor or triac that drives the motor, the rotation speed of the motor can be feedback-controlled. Here, if the amplification factor of the amplifier circuit is set high, even if the deviation of the motor rotational speed from the target rotational speed is small, a large change in the energization phase of the thyristor and the trybook occurs, and the deviation can be corrected.

逆に増幅率を比較的小さく(1〜10)すると、通電位
相へのフィードバック量が減少し、結果的に目標回転数
からいくらかズした回転数で安定する。つまり、増幅回
路の増幅率によって、商用電源電圧の変動等による回転
数の変動度合をプログラマブルに設定できるものである
On the other hand, when the amplification factor is made relatively small (1 to 10), the amount of feedback to the energization phase decreases, and as a result, the rotation speed is stabilized at a rotation speed that is slightly deviated from the target rotation speed. In other words, the degree of variation in the rotational speed due to variations in commercial power supply voltage, etc. can be programmably set by the amplification factor of the amplifier circuit.

実施例 以下本発明の一実施例を第1図〜第4図とともに説明す
る。
EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4.

第1図は本実施例のモータ回転数制御回路である。図中
の1は制御対象のモータで、本実施例では石油燃焼機の
燃焼空気供給用ファンモータとする。2はフォトインタ
ラプタで、ファンモータ1のファンに一部切9起こしを
設け、これでフォトインタラプタ2のLEDとフォトト
ランジスタの間のスリット部をしゃ断しでフォトトラン
ジスタをOFFさせることによシ回転数に応じたパルス
信号を発生するように構成されている。
FIG. 1 shows the motor rotation speed control circuit of this embodiment. Reference numeral 1 in the figure indicates a motor to be controlled, which in this embodiment is a fan motor for supplying combustion air to an oil combustion machine. Reference numeral 2 is a photointerrupter, in which a part of the fan of the fan motor 1 is cut and raised, and this cuts off the slit between the LED and the phototransistor of the photointerrupter 2, turning off the phototransistor, thereby changing the rotation speed. It is configured to generate a pulse signal according to the

一方、3は電源トランスで、商用電源を低電圧に変換し
、この電圧はブリッジダイオード4で両波整流される。
On the other hand, 3 is a power transformer that converts commercial power into a low voltage, and this voltage is double-wave rectified by a bridge diode 4.

そしてこの信号はゼロクロスで充電スタートするCRタ
イマ回路5に入力される。
This signal is then input to the CR timer circuit 5, which starts charging at zero cross.

また、両波整流信号はダイオード6で分離されたあと電
解コンデンサ7で平滑されて直流電源を作る。本実施例
ではこの電圧を12VDCとした。
Further, the double-wave rectified signal is separated by a diode 6 and then smoothed by an electrolytic capacitor 7 to produce a DC power source. In this embodiment, this voltage was set to 12 VDC.

この直流電源はさらに保護抵抗8とツェナーダイオード
9で安定化電源8vに変換され、回転数制御回路の電源
として供給される。
This DC power supply is further converted into a stabilized power supply of 8V by a protective resistor 8 and a Zener diode 9, and is supplied as a power supply to the rotation speed control circuit.

10は増幅回路のオペアンプで、非反転入力にF/V変
換回路の出力電圧を、また反転入力には抵抗11.12
で分割して得られる定電圧が抵抗13を介して入力され
、さらに出力との間に抵抗14が挿入されている。また
、この出力はオペアンプ15の非反転入力に接続され、
一方、反転入力にはCRタイマ回路5の出力信号が入力
されている。そしてオペアンプ15の出力にはトランジ
スタ16を介してフォトカプラのLED17mを接続し
、これを受けるフォトトランジスタ17bは、サイリス
タ18のゲートに接続される。このサイリスタ18のト
リガ電流は抵抗19を通して与えられる構成とする。ま
た、サイリスタ18のアノードはブリッジダイオード2
0を介してファンモータ1に接続されている。
10 is an operational amplifier of the amplifier circuit, the output voltage of the F/V conversion circuit is connected to the non-inverting input, and the resistor 11.12 is connected to the inverting input.
A constant voltage obtained by dividing the voltage is input through a resistor 13, and a resistor 14 is further inserted between the output and the output. Moreover, this output is connected to the non-inverting input of the operational amplifier 15,
On the other hand, the output signal of the CR timer circuit 5 is input to the inverting input. A photocoupler LED 17m is connected to the output of the operational amplifier 15 via a transistor 16, and a phototransistor 17b that receives this is connected to the gate of the thyristor 18. The trigger current of this thyristor 18 is applied through a resistor 19. Furthermore, the anode of the thyristor 18 is connected to the bridge diode 2.
0 to the fan motor 1.

次に本実施例の動作を説明する。Next, the operation of this embodiment will be explained.

フォトインタラプタ2によって取り込まれたパルス信号
は、F/V変換回路3で電圧レベル信号に変換されるが
、その電圧とモータ回転数との関係を第2図に示す。回
転数に対し、電圧は正の傾きを持っており、第1図中の
抵抗3a1コンデンサ3b等を変えると、この特性は変
化する。本実施例では制御目標の回転数を2800 r
pmとし、このとき、出力電圧が4vになるように定数
を選択した。また、抵抗11,12.13をそれぞれ1
0にΩ、14を50にΩとするとオペアンプ10では、
この抵抗11.12で設定される電圧4vと、F/v変
換回路3の出力電圧との差電圧が、4Vを基準電圧に抵
抗13と14の比(5倍)に増幅されて出力される。し
たがってモータ回転数が2800 rpmを基準に高/
低すれば、オペアンプ10の出力電圧も4vを基準に高
/低する。
The pulse signal taken in by the photointerrupter 2 is converted into a voltage level signal by the F/V conversion circuit 3, and the relationship between the voltage and the motor rotation speed is shown in FIG. The voltage has a positive slope with respect to the rotational speed, and this characteristic changes if the resistor 3a, capacitor 3b, etc. in FIG. 1 are changed. In this example, the control target rotation speed is 2800 r.
pm, and constants were selected so that the output voltage would be 4v. Also, resistors 11, 12, and 13 are each set to 1
If 0 is Ω and 14 is 50 Ω, for operational amplifier 10,
The difference voltage between the voltage 4V set by this resistor 11 and 12 and the output voltage of the F/V conversion circuit 3 is amplified to the ratio (5 times) of the resistors 13 and 14 using 4V as the reference voltage and output. . Therefore, if the motor rotation speed is high/
If the voltage is lowered, the output voltage of the operational amplifier 10 will also be raised or lowered based on 4V.

一方、ブリッジダイオード4で両波整流された信号はゼ
ロクロス点でトランジスタ5aをOFFさせ、トランジ
スタ5bを6Nさせ、コンデンサ5Cを6vに放電させ
る。その後抵抗5dによって充電され、その電圧が、オ
ペアンプ15の非反転入力を越えた時点で出力がLoと
なり、トランジスタ16が0FFI、てLED17mが
消灯する。
On the other hand, the signal double-wave rectified by the bridge diode 4 turns off the transistor 5a at the zero cross point, turns the transistor 5b into 6N, and discharges the capacitor 5C to 6V. Thereafter, it is charged by the resistor 5d, and when the voltage exceeds the non-inverting input of the operational amplifier 15, the output becomes Lo, the transistor 16 becomes 0FFI, and the LED 17m turns off.

そしてフォトトランジスタ17bが(5FFL、て、抵
抗19から電流が流れることによりサイリスタ18がト
リガされて6Nとなシ、ファンモータ1に通電が行なわ
れる。
When the phototransistor 17b reaches (5FFL), a current flows from the resistor 19, which triggers the thyristor 18 to 6N, and the fan motor 1 is energized.

第3図に、回路の各都電圧波形を示す。@はF/V変換
回路3の出力電圧とモータ回転数の関係、■は増幅回路
のオペアンプ10の出力電圧と同じくモータ回転数の関
係で、4vからの偏差かのに比べて5倍に増幅されてい
る。◎はCRタイマの充電々圧波形で、商用電源のゼロ
クロス毎にCが放電されている。そして、同図(a)は
基準回転数2800 rpm時のファンモータ1への位
相制御角がこれら■■◎の曲線によっていかに決定され
るかを示している。同様に同図(b)は、回転数が少し
低下(270Orpm ) l、たときの位相制御角を
示している。図かられかるように、この場合(a)に比
べて導通角が広がシ、モータ回転数の落ち込みを補正す
る方向に制御が働いていることがわかる。
FIG. 3 shows the voltage waveforms of each circuit. @ is the relationship between the output voltage of the F/V conversion circuit 3 and the motor rotation speed, ■ is the relationship between the output voltage of the operational amplifier 10 of the amplifier circuit and the motor rotation speed, and is amplified five times compared to the deviation from 4V. has been done. ◎ is the charging voltage waveform of the CR timer, and C is discharged every time the commercial power supply zero crosses. FIG. 6(a) shows how the phase control angle to the fan motor 1 when the reference rotation speed is 2800 rpm is determined by these curves. Similarly, (b) of the same figure shows the phase control angle when the rotational speed is slightly lowered (270 rpm). As can be seen from the figure, in this case, the conduction angle is wider than in (a), and it can be seen that the control is working in the direction of correcting the drop in the motor rotation speed.

次に、商用電源の電圧変動に対するモータ回転数の変動
を考える。当然電圧が低下すれば一時的にモータ回転数
が低下し、その後、前述のフィードバック制御により回
転数を上昇させようと動作するが、基準回転数までは復
帰せず、それより低回転の位置で安定する。その安定す
るモータ回転数は、フィードバック量、すなわち増幅回
路の増幅率で決まる。商用電源電圧が上昇した場合も同
様である。
Next, consider fluctuations in the motor rotation speed with respect to voltage fluctuations in the commercial power supply. Naturally, if the voltage drops, the motor rotation speed will temporarily drop, and then the feedback control mentioned above will try to increase the rotation speed, but it will not return to the standard rotation speed and will remain at a lower rotation position than that. Stabilize. The stable motor rotation speed is determined by the amount of feedback, that is, the amplification factor of the amplifier circuit. The same applies when the commercial power supply voltage increases.

第4図に商用電源電圧vA0と、モータ回転数の関係を
、増幅回路の増幅率Gを変化させて測定した結果を示す
。この結果かられかるように、抵抗13.14の値によ
って決まる増幅率を変化するだけで、モータ回転数の商
用電源電圧特性を容易に変化できるものである。
FIG. 4 shows the results of measuring the relationship between the commercial power supply voltage vA0 and the motor rotation speed by varying the amplification factor G of the amplifier circuit. As can be seen from this result, the commercial power supply voltage characteristic of the motor rotation speed can be easily changed by simply changing the amplification factor determined by the value of the resistors 13 and 14.

また、本実施例では基準回転数2800 rpmに設定
したが、この値を変えたい場合も、抵抗13a1コンデ
ンサ13bの定数を変えることによって簡単に行なえる
Further, in this embodiment, the reference rotation speed is set to 2800 rpm, but if it is desired to change this value, this can be easily done by changing the constants of the resistor 13a and the capacitor 13b.

発明の効果 以上の実施例の説明より明らかなように本発明によれば (1)モータの回転数制御を簡単な回路で実現できる。Effect of the invention As is clear from the above description of the embodiments, according to the present invention, (1) Motor rotation speed control can be realized with a simple circuit.

(2)さらに、回転数制御の商用電源電圧に対する依存
性を簡単にしかもプログラマブルに可変設定できる。
(2) Furthermore, the dependence of the rotation speed control on the commercial power supply voltage can be easily and programmably variably set.

といった特徴があり、特に燃焼機具の燃焼空気供給用フ
ァンモータのような、燃料供給用電磁ポンプとのマンチ
ングをとることが要求されるような用途には多大な効果
を発揮し、燃焼量の強・弱制御を容易に可能とすること
ができるというものである。
It is particularly effective in applications that require munching with electromagnetic pumps for fuel supply, such as fan motors for supplying combustion air in combustion equipment, and increases the amount of combustion.・Weak control can be easily achieved.

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

第1図は本発明の一実施例のモータ回転数制御装置の回
路図、第2図は同モータ回転数とF/V変換回路の特性
曲線図、第3図は同回路の各部波形図、第4図は同モー
タ回転数の商用電源圧依存性曲線図、第5図は従来の石
油燃焼機の制御装置の回路図である。 1・・・・・・(ファン)モータ、2・・・・・・フォ
トインタラプタ(回転数センサ)、3・・・・・・F/
V変換回路、5・・・・・・CRメタ4回路(ゼロクロ
ススタート)、10・・・・・・オペアンプ(増幅回路
)、15・・・・・・オペアンプ(比較回路)、18・
・・・・・サイリスタ(電力制御素子)。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名32
図 モーフ面転般 (rPm) 第3図 (+2) FM軍軍刀 筒4図 □ VAC(v) 第5図
Fig. 1 is a circuit diagram of a motor rotation speed control device according to an embodiment of the present invention, Fig. 2 is a characteristic curve diagram of the motor rotation speed and F/V conversion circuit, and Fig. 3 is a waveform diagram of each part of the circuit. FIG. 4 is a commercial power supply voltage dependence curve of the motor rotation speed, and FIG. 5 is a circuit diagram of a conventional control device for an oil-burning machine. 1...(fan) motor, 2...photo interrupter (rotation speed sensor), 3...F/
V conversion circuit, 5... CR meta 4 circuit (zero cross start), 10... operational amplifier (amplification circuit), 15... operational amplifier (comparison circuit), 18.
...Thyristor (power control element). Name of agent: Patent attorney Toshio Nakao and 1 other person32
Figure morph plane rotation general (rPm) Figure 3 (+2) FM army Guntotsutsu Figure 4 □ VAC (v) Figure 5

Claims (1)

【特許請求の範囲】[Claims] モータの回転数に同期したパルス信号を取り込む回転数
センサと、前記パルス信号をその周波数に応じた電圧レ
ベル信号に変換するF/V変換回路と、この電圧レベル
信号と所定の電圧値との差電圧を増幅する増幅回路と、
この増幅回路の出力電圧を一方の入力に、また他方の入
力には商用電源のゼロクロス点をスタートに充電を開始
するCRタイマの充電々圧を接続した比較回路とを備え
、その出力信号で電力制御素子にトリガを掛け、モータ
の位相制御を行なう構成としたモータ回転数制御装置。
A rotation speed sensor that captures a pulse signal synchronized with the rotation speed of the motor, an F/V conversion circuit that converts the pulse signal into a voltage level signal according to the frequency, and a difference between this voltage level signal and a predetermined voltage value. an amplifier circuit that amplifies the voltage;
The output voltage of this amplifier circuit is connected to one input, and the other input is connected to the charging voltage of a CR timer that starts charging from the zero cross point of the commercial power supply. A motor rotation speed control device configured to apply a trigger to a control element and perform phase control of the motor.
JP63098622A 1988-04-21 1988-04-21 Motor rotation control device Pending JPH01269821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63098622A JPH01269821A (en) 1988-04-21 1988-04-21 Motor rotation control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63098622A JPH01269821A (en) 1988-04-21 1988-04-21 Motor rotation control device

Publications (1)

Publication Number Publication Date
JPH01269821A true JPH01269821A (en) 1989-10-27

Family

ID=14224646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63098622A Pending JPH01269821A (en) 1988-04-21 1988-04-21 Motor rotation control device

Country Status (1)

Country Link
JP (1) JPH01269821A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0482546U (en) * 1990-11-13 1992-07-17
NL9400887A (en) * 1994-05-31 1996-01-02 Daalderop Bv Device for controlling a heating apparatus
JP2011078235A (en) * 2009-09-30 2011-04-14 Fujitsu Ten Ltd Overcurrent protection circuit and on-vehicle display device
CN115395857A (en) * 2022-09-16 2022-11-25 奥豪斯仪器(常州)有限公司 Control circuit for motor speed regulation and motor speed regulation control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0482546U (en) * 1990-11-13 1992-07-17
NL9400887A (en) * 1994-05-31 1996-01-02 Daalderop Bv Device for controlling a heating apparatus
JP2011078235A (en) * 2009-09-30 2011-04-14 Fujitsu Ten Ltd Overcurrent protection circuit and on-vehicle display device
CN115395857A (en) * 2022-09-16 2022-11-25 奥豪斯仪器(常州)有限公司 Control circuit for motor speed regulation and motor speed regulation control circuit
CN115395857B (en) * 2022-09-16 2024-04-05 奥豪斯仪器(常州)有限公司 Control circuit for motor speed regulation and motor speed regulation control circuit

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