JPS5965325A - Ac controller - Google Patents

Ac controller

Info

Publication number
JPS5965325A
JPS5965325A JP17491682A JP17491682A JPS5965325A JP S5965325 A JPS5965325 A JP S5965325A JP 17491682 A JP17491682 A JP 17491682A JP 17491682 A JP17491682 A JP 17491682A JP S5965325 A JPS5965325 A JP S5965325A
Authority
JP
Japan
Prior art keywords
signal
microcomputer
switch
zero
power supply
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
JP17491682A
Other languages
Japanese (ja)
Inventor
Kazumi Kamiyama
神山　一実
Takashi Deguchi
隆 出口
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 JP17491682A priority Critical patent/JPS5965325A/en
Publication of JPS5965325A publication Critical patent/JPS5965325A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
    • G05F1/452—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with pulse-burst modulation control

Abstract

PURPOSE:To simplify the constitution of a zero-volt switch circuit, by detecting the zero-volt position of a power supply by a power supply frequency input circuit and delivering the on/off signal of a load from a microcomputer in the detection timing of said zero-volt position. CONSTITUTION:The zero-volt position of a power supply is detected by a power supply frequency input cicuit 2 for a microcomputer 1, and the on/off signal of a load is delivered from the microcomputer in the detection timing of said zero- volt position. For instance, the output pulse of the circuit 2 is supplied to an IN terminal of the computer 1, and at the same time the signal of a switch 3 is also supplied to the computer 1. Then the working signal is sent to a photothyristor 4 from an out-terminal of the computer 1, and the working signal of the thyristor 4 is delivered from the computer 1 at the zero-volt position set after the signal of the switch 3 is supplied. Then the load is turned on and off at the zero-volt position of the power supply.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はゼロボルト位置で交流制御素子をＯＮ。[Detailed description of the invention] Industrial applications In the present invention, the AC control element is turned on at the zero volt position.

ＯＦＦする交流制御装置に関するものである。This relates to an AC control device that is turned off.

従来例の構成とその問題点 従来、交流制御装置では電源周波数の位相に関係なくス
イッチのＯＮ　、ＯＦＦ切替時に交流制御素子のＯＮ、
ＯＦＦ動作をさせると負荷の突入電流によシ高周波雑音
障害が発生しノイズとしてラジオ等に受信される。これ
を防止する為に交流のゼロボルト位置で交流制御素子を
ＯＮ、ＯＦＦする為のゼロボルトスイッチという回路が
必要となる。ところでマイクロコンピュータ−を用いた
制御回路ではマイクロコンピュータのタイマ機能を実現
する為に電源周波数を基本タイマ一時間として入力して
いる。この電流周波数入力を用いて一電源のゼロボルト
位置を検出することにより交流制御回路の合理化ができ
る。Conventional configuration and its problems Conventionally, in AC control devices, the switch is turned ON regardless of the phase of the power supply frequency, and the AC control element is turned ON when switching OFF.
When the OFF operation is performed, a high frequency noise disturbance is generated due to the inrush current of the load, which is received as noise by a radio or the like. In order to prevent this, a circuit called a zero volt switch is required to turn on and off the AC control element at the zero volt position of the AC. By the way, in a control circuit using a microcomputer, in order to realize the timer function of the microcomputer, the power supply frequency is inputted as one hour of the basic timer. The AC control circuit can be rationalized by detecting the zero volt position of one power source using this current frequency input.

以下、従来のゼロボルトスイッチを用いた交流制御回路
の１例について第１図および第２図を用いて説明する。An example of an AC control circuit using a conventional zero-volt switch will be described below with reference to FIGS. 1 and 2.

１はマイクロコンピュータ、２はマイクロコンピュータ
への電源周波数入力回路である。この電源周波数入力回
路２は電源の半波整流を用いて電源がゼロボルト位置に
てトランジスタＱ１がオン・オフし、第２図マイクロコ
ンビュ−タ１の入力端子ＩＮに電源周波数と同じパルス
がマイクロコンピュータ１に入力される。マイクロコン
ピュータ１はこのパルス幅を測定することにより電源周
波数を判別し、又パルス数をカウトすることによりタイ
マ一時間をつくシだすことができる。３は負荷のＯＮ　
、ＯＦＦをさせるスイッチである。４は上記マイクロコ
ンピュータ１及び電源周波数入力回路２、スイッチ３と
ゼロクロススイッチ５、トライブック６とを絶縁するア
イソレータであり、スイッチ３を閉じると入力１則のダ
イオードに電流が流れ、その光電流により出力側のトラ
ンジスタが導通する。Ｒ１〜Ｒ６＆：ＩＪｉＬ抗、０１
〜Ｃ２はコンデンサ、Ｑ１〜Ｑ３はトランジスタ、Ｄ１
〜Ｄ４はダイオード、Ｚｌはツェナーダイオードである
。ゼロボルトスイッチ５の動作は寸ずダイオードＤ１〜
Ｄ４によって全波整流はれる。この時抵抗Ｒ１，Ｒ２、
コンデンサＣ１によりコンデンサＣ１の両端電圧ＶＣは
電源電圧ＶＡＣの位相より遅れる。以下の回路動作もす
べて電源電圧に対して遅れている。次にＰＵＴ８の動作
について説明する。抵抗Ｒ３とＲ４で分割されたゲート
電圧ｖＧと抵抗Ｒ５とＲ６で分割されたアノード電圧ｖ
Ａとの差によりＰＵＴｓを動作させるが、通常抵抗Ｒ３
ゝ〜Ｒ６によりＶＧ＜　ＶＡとするとＰＵＴ８は動作し
ない。次にアノード電圧ｖＡに並列にコンデンサＣ８を
入れると、ツェナーダイオードＺ１の両端電圧ｖｚが上
昇中はＶＧ＞ＶＡであるが、下降時にはコンデンサＣ２
の放電の為、ＶＧ　＜　ＶＡとなる。この時ＰＵＴ８は
オンし、トランジスタＱ２のベースに電圧が印加される
。今スイッチ３を閉じるとアイソレータ４の出力トラン
ジスタがオンし、トランジスタＱ３はオフしている。こ
の場合には上記ゼロボルトスイッチ５の動作により電源
電圧のゼロボルト位置でＰＵＴ８がオンし、トランジス
タＱ２がオンしパルストランス７を界してトライアック
６にゲート電流が流れ、トライアック６はターンオンす
る。1 is a microcomputer, and 2 is a power frequency input circuit to the microcomputer. This power supply frequency input circuit 2 uses half-wave rectification of the power supply, and when the power supply is at zero volts, the transistor Q1 is turned on and off, and a pulse equal to the power frequency is sent to the input terminal IN of the microcomputer 1 in FIG. 1 is input. The microcomputer 1 can determine the power frequency by measuring this pulse width, and can start a timer for one hour by counting the number of pulses. 3 is load ON
, is a switch that turns OFF. 4 is an isolator that insulates the microcomputer 1, the power frequency input circuit 2, the switch 3, the zero cross switch 5, and the try book 6; when the switch 3 is closed, a current flows through the diode with one input rule, and the photocurrent causes The transistor on the output side becomes conductive. R1~R6&: IJiL anti, 01
~C2 is a capacitor, Q1 to Q3 are transistors, D1
~D4 is a diode, and Zl is a Zener diode. The operation of the zero volt switch 5 is based on the diode D1~
Full wave rectification is performed by D4. At this time, resistors R1, R2,
Due to the capacitor C1, the voltage VC across the capacitor C1 lags behind the phase of the power supply voltage VAC. All of the following circuit operations also lag behind the power supply voltage. Next, the operation of PUT8 will be explained. Gate voltage vG divided by resistors R3 and R4 and anode voltage v divided by resistors R5 and R6
The PUTs are activated by the difference between A and R3.
If VG<VA is established by ~R6, PUT8 does not operate. Next, when a capacitor C8 is inserted in parallel with the anode voltage vA, when the voltage vz across the Zener diode Z1 is rising, VG>VA, but when it is falling, the capacitor C2
Because of the discharge, VG < VA. At this time, PUT8 is turned on and a voltage is applied to the base of transistor Q2. When switch 3 is closed now, the output transistor of isolator 4 is turned on and transistor Q3 is turned off. In this case, the operation of the zero volt switch 5 turns on the PUT 8 at the zero volt position of the power supply voltage, turns on the transistor Q2, cuts off the pulse transformer 7, causes a gate current to flow to the triac 6, and the triac 6 turns on.

スイッチ３が開いている場合にはトランジスタＱ３がオ
ンし、トランジスタＱ２はオフさせることによシ、トラ
イアック６はオンしない。When switch 3 is open, transistor Q3 is turned on, transistor Q2 is turned off, and triac 6 is not turned on.

ここで、従来例の回路構成は、マイクロコンピータと、
負荷の制御回路が独立しており、マイクロコンピュータ
への電源周波数入力回路で電源周波数のゼロボルト位置
で入力パルスの立ち上がシ、立ち下がシが入力されてい
るにもかかわらず、負荷の制御用にゼロボルトスイッチ
回路を用いていた。これはゼロボルト位置検量回路が二
重になっていることから回路部品が無駄となり、合理的
でなかった。Here, the circuit configuration of the conventional example is a microcomputer,
The load control circuit is independent, and even though the power frequency input circuit to the microcomputer is inputting the rising and falling edges of the input pulse at the zero volt position of the power frequency, the load cannot be controlled. A zero-volt switch circuit was used for this purpose. This was not rational because the zero volt position calibration circuit was duplicated, which meant that circuit parts were wasted.

発明の目的 本発明は、上記従来の欠点を除去するもので、負荷のオ
ン、オフ信号をマイクロコンピュータへの電源周波数入
力回路によシミ源のゼロボルト位置を検出し、そのタイ
ミングでマイクロコンピュータより出力することにより
ゼロボルトスイッチ回路の簡略化をはかることを目的と
するものである。Purpose of the Invention The present invention eliminates the above-mentioned drawbacks of the conventional technology.The present invention detects the zero volt position of the stain source by inputting the load on/off signal to the microcomputer using a power frequency input circuit, and outputs it from the microcomputer at that timing. The purpose of this is to simplify the zero-volt switch circuit.

発明の構成 本発明の交流制御装置は、負荷を制御する交流制御素子
と負荷のＯＮ　、ＯＦＦ信号用スイッチとマイクロコン
ピュータ及びこのマイクロコンピュータへの電源周波数
入力回路と上記ＯＮ、ＯＦＦ信号用スイッチ及び上記電
源周波数入力回路と上記交流制御素子を絶縁するアイソ
レータとを具備し、上記スイッチの信号をアイソレータ
の入力信号とし、出力信号を交流制御素子の動作信号と
する際、上記マイクロコンピュータへの電源周波数入力
で電源のゼロボルト位置を検出し、ゼロボルト位置のタ
イミングでアイソレータへ入力信号を出力するようにし
て、前記目的を達成すべくしたものである。Structure of the Invention The AC control device of the present invention comprises an AC control element for controlling a load, a switch for ON and OFF signals of the load, a microcomputer, a power frequency input circuit to the microcomputer, the above-mentioned switch for ON and OFF signals, and the above-mentioned switch. A power supply frequency input circuit and an isolator for insulating the AC control element are provided, and when the signal from the switch is used as the input signal of the isolator and the output signal is used as the operation signal of the AC control element, the power supply frequency input circuit to the microcomputer is provided. The above object is achieved by detecting the zero volt position of the power supply and outputting an input signal to the isolator at the timing of the zero volt position.

実施例の説明 以下、本発明をその一実施例を示す添付図面の第３図、
第４図を参考に説明する。１はマイクロコンピュータ、
２は電源周波数入力回路、３は負荷のオン・オフ信号用
スイッチ、４はアイソレータとサイリスタを１組にした
フォトサイリスクである。電源周波数はゼロボルト位置
付近にて立ら上がり又は立ち下がシのパルスとな９マイ
クロコンピユータ１のＩＮ端子へ入力される。これはト
ランリスクＱ１がオンするには、少なくともベース−エ
ミッタ間に０．７Ｖ程度以上必要な為である。DESCRIPTION OF THE EMBODIMENTS The present invention will now be described with reference to FIG. 3 of the accompanying drawings showing one embodiment thereof.
This will be explained with reference to FIG. 1 is a microcomputer,
2 is a power frequency input circuit, 3 is a load on/off signal switch, and 4 is a photothyristor which is a set of an isolator and a thyristor. The power supply frequency is input to the IN terminal of the microcomputer 1 in the form of a pulse that rises or falls near the zero volt position. This is because at least about 0.7V or more is required between the base and emitter in order for the transistor Q1 to turn on.

しかし、マイクロコンピュータ１への電源周波数入力の
パルスの立ち上がシ又は立ち下がシ時と電源周波数のゼ
ロボルト時の時間差は既知であシ、マイクロコンピータ
１にその補正を実行させることは容易である。またスイ
ッチ３の信号もマイクロコンピュータに入力され、フォ
トサイリスクの動作信号はマイクロコンピュータ１のＯ
ＵＴ端子よシ出力される。この時、スイッチ３／′ｉ、
電源周波数のどの位相でオン・オフされるかわからない
が、マイクロコンピュータによシスイッチ３の信号が入
力されて後の電源のゼロボルト位置で７オトサイリスタ
４の動作信号を出力することにより、電源のゼロボルト
位置で負荷のオン・オフを行なうことができる。However, the time difference between the rise or fall of the pulse of the power frequency input to the microcomputer 1 and the zero volt of the power frequency is known, and it is not easy to make the microcomputer 1 correct it. be. The signal from the switch 3 is also input to the microcomputer, and the operating signal for the photo-silisk is output from the microcomputer 1.
It is output from the UT terminal. At this time, switch 3/'i,
Although it is not known at what phase of the power supply frequency the power supply is turned on and off, the microcomputer inputs the signal from the switch 3 and then outputs the operation signal for the otothyristor 4 at the zero volt position of the power supply, thereby controlling the power supply. The load can be turned on and off at zero volt position.

このように、負荷のオン・オフスイソチの信号を、マイ
クロコンピュータへの電源周波数人力を用い電源のゼロ
ボルト位置で出力することにより大幅な回路の簡略化が
できる。これにょシ、まず回路の／ＪＳ型化が図れ、次
にコストの低下が図れる。In this way, the circuit can be greatly simplified by outputting the load on/off switch signal at the zero volt position of the power supply using the power supply frequency input to the microcomputer. First, the circuit can be made into a /JS type circuit, and second, the cost can be reduced.

また部品数量の減少により信頼性も向上する。Reliability is also improved by reducing the number of parts.

発明の効果 上記実施例より明らかなように、本発明における交流制
御装置は、負荷を制御する交流制御素子と負荷のＯＮ・
ＯＦＦ信号用スイッチとマイクロコンピュータ及びマイ
クロコンピュータへの電源周波数入力回路と前記スイッ
チ及び電源周波数入力回路と交流制御素子を絶縁するア
イソレータを具備し、前記スイッチの信号をアイソレー
タの入力信号とし出力信号を交流制御素子の動作信号と
する際、前記マイクロコンピュータへの電源周波数入力
で電源のゼロボルト位置を検出し、ゼロボルト位置でア
イソレータへの入力信号を出するもので、従来のゼロボ
ルトスイッチを削除できることにより、制御回路の簡略
化ができ、これにより回路の小型化及びコストの低減が
図れるなど、種々の利点を有するものである。Effects of the Invention As is clear from the above embodiments, the AC control device of the present invention has an AC control element that controls a load, and an AC control element that controls the load.
It is equipped with an OFF signal switch, a microcomputer, a power frequency input circuit to the microcomputer, and an isolator that insulates the switch, the power frequency input circuit, and an AC control element, and uses the signal of the switch as an input signal of the isolator and outputs an AC signal. When used as an operating signal for the control element, the zero volt position of the power supply is detected by the power frequency input to the microcomputer, and an input signal to the isolator is output at the zero volt position.By eliminating the conventional zero volt switch, the control This has various advantages, such as the ability to simplify the circuit, thereby reducing the size and cost of the circuit.

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

第１図は従来例を示す交流制御装置の回路図、第２図は
同交流制御装置によるタイミング図、第３、図は本発明
の一実施例を示す交流制御装置の回路図、第４図は同交
流制御装置によるタイミング図である。Fig. 1 is a circuit diagram of an AC control device showing a conventional example, Fig. 2 is a timing diagram of the same AC control device, Fig. 3 is a circuit diagram of an AC control device showing an embodiment of the present invention, Fig. 4 is a timing diagram of the same AC control device.

Claims (1)

【特許請求の範囲】[Claims] 負荷を制御する交流制御素子と負荷のＯＮ、ＯＦＦ信号
用スイッチとマイクロコンピュータ及びこのマイクロコ
ンピュータへの電源周波数入力回路と上記ＯＮ、ＯＦＦ
信号用スイッチ及び上記電源周波数入力回路と上記交流
制御素子を絶縁するアイソレータとを具備し、上記スイ
ッチの信号をアイソレータの入力信号とし、出力信号を
交流制御素子の動作信号とする際、上記マイクロコンピ
ュータへの電源周波数入力で電源のゼロボルト位置を検
出し、ゼロボルト位置のタイミングでアイソレータへの
入力信号を出力する交流制御装置。An AC control element that controls the load, a switch for ON and OFF signals for the load, a microcomputer, a power frequency input circuit to this microcomputer, and the ON and OFF signals for the load.
The microcomputer is equipped with a signal switch and an isolator that insulates the power frequency input circuit and the AC control element, and when the signal of the switch is used as an input signal of the isolator and the output signal is used as an operation signal of the AC control element. An AC control device that detects the zero volt position of the power supply by inputting the power frequency to the isolator, and outputs an input signal to the isolator at the timing of the zero volt position.
JP17491682A 1982-10-04 1982-10-04 Ac controller Pending JPS5965325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17491682A JPS5965325A (en) 1982-10-04 1982-10-04 Ac controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17491682A JPS5965325A (en) 1982-10-04 1982-10-04 Ac controller

Publications (1)

Publication Number Publication Date
JPS5965325A true JPS5965325A (en) 1984-04-13

Family

ID=15986944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17491682A Pending JPS5965325A (en) 1982-10-04 1982-10-04 Ac controller

Country Status (1)

Country Link
JP (1) JPS5965325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790237A (en) * 1985-03-05 1988-12-13 Takenaka Corporation Damper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790237A (en) * 1985-03-05 1988-12-13 Takenaka Corporation Damper

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