JPH1092661A - Power saving device - Google Patents
Power saving deviceInfo
- Publication number
- JPH1092661A JPH1092661A JP26360796A JP26360796A JPH1092661A JP H1092661 A JPH1092661 A JP H1092661A JP 26360796 A JP26360796 A JP 26360796A JP 26360796 A JP26360796 A JP 26360796A JP H1092661 A JPH1092661 A JP H1092661A
- Authority
- JP
- Japan
- Prior art keywords
- power saving
- resistor
- saving device
- control circuit
- switch
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主回路のトランス
の一次巻線のタップを半導体スイッチで切り換えること
により出力電圧を制御し、トランスの二次巻線に接続さ
れた負荷機器の消費電力を抑制する節電装置の改良に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention controls the output voltage by switching the tap of the primary winding of a transformer of a main circuit with a semiconductor switch, and reduces the power consumption of a load device connected to the secondary winding of the transformer. The present invention relates to improvement of a power saving device for suppressing power consumption.
【０００２】[0002]
【従来の技術】従来、節電装置は、図３及び図４に示す
ようなものであった。即ち、節電装置１１は、トランス
２の一次巻線のタップを半導体スイッチＳ1X，Ｓ2X，Ｓ
3X，Ｓ1Y，Ｓ2Y，Ｓ3Yで切り換えることにより出力電圧
を制御し、トランス１２の二次巻線に接続された負荷機
器の消費電力を抑制していた。2. Description of the Related Art Conventionally, a power saving device is as shown in FIGS. That is, the power saving device 11 connects the taps of the primary winding of the transformer 2 to the semiconductor switches S 1X , S 2X , S
The output voltage is controlled by switching between 3X , S 1Y , S 2Y , and S 3Y , and the power consumption of the load device connected to the secondary winding of the transformer 12 is suppressed.
【０００３】この節電装置１１において、出力電圧を制
御して節電を行う制御状態と、出力電圧を制御せず節電
を行わない直送状態とを切り換える際に生ずるトランス
１２の一次巻線の開放状態を防ぐためにシーケンサ等の
制御回路１３に接続されたスイッチ１４のオン・オフに
より抵抗器１５をオン・オフさせていた。In this power saving device 11, the open state of the primary winding of the transformer 12 which occurs when switching between a control state in which the output voltage is controlled to save the power and a direct transmission state in which the output voltage is not controlled and the power saving is not performed is determined. To prevent this, the resistor 15 is turned on and off by turning on and off a switch 14 connected to a control circuit 13 such as a sequencer.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記従来
の節電装置１１は、制御回路１３によりスイッチ１４を
オン・オフさせるのみで、このスイッチ１４の接点が溶
着するなどしてオン状態のままになると、抵抗器１５に
電流が流れ続け、場合によっては抵抗器１５が焼損する
虞があった。また、スイッチ１４がの接点がオフ状態の
ままになると、トランス１２の一次巻線に高電圧が発生
し、使用部品の耐量を超え破壊させてしまうという虞が
あった。However, the conventional power saving device 11 only turns on and off the switch 14 by the control circuit 13, and if the contact of the switch 14 is kept on due to welding or the like, Current may continue to flow through the resistor 15, and in some cases, the resistor 15 may be burned out. Further, if the contact of the switch 14 remains off, a high voltage is generated in the primary winding of the transformer 12, and there is a possibility that the breakdown may exceed the withstand capability of the component used.
【０００５】[0005]
【課題を解決するための手段】上記従来の節電装置の問
題点に鑑み、本発明の目的は、トランスの一次巻線の開
放状態を防ぐための抵抗器のオン・オフが確実に把握で
き、異常があった場合に負荷機器や部品等に悪影響を及
ぼすことがない節電装置を提供するもので、主回路のト
ランスの一次巻線のタップを半導体スイッチで切り換え
ることにより出力電圧を制御し、前記トランスの二次巻
線に接続された負荷機器の消費電力を抑制する節電装置
において、出力電圧を制御して節電を行う制御状態と、
出力電圧を制御せず節電を行わない直送状態とを前記半
導体スイッチで切り換える際に生ずる前記トランスの一
次巻線の開放状態を防ぐために制御回路に接続されたス
イッチのオン・オフにより抵抗器をオン・オフさせると
共に、前記スイッチに補助接点を設け、該補助接点を前
記制御回路に入力し、該制御回路により前記抵抗器のオ
ン・オフ信号を出力すると共に、前記補助接点の入力信
号を監視し、該入力信号と、前記抵抗器のオン・オフ信
号とを比較し、両者が一致すれば通常の動作を行い、一
致しなければ異常信号を出力し前記節電装置を直送状態
に固定するものである。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional power saving device, an object of the present invention is to reliably grasp ON / OFF of a resistor for preventing an open state of a primary winding of a transformer. In order to provide a power saving device that does not adversely affect load devices and components when an abnormality occurs, the output voltage is controlled by switching a tap of a primary winding of a transformer of a main circuit with a semiconductor switch, and In a power saving device that suppresses power consumption of a load device connected to a secondary winding of a transformer, a control state in which an output voltage is controlled to save power,
The resistor is turned on by turning on and off a switch connected to a control circuit in order to prevent an open state of the primary winding of the transformer, which is caused when the semiconductor switch switches between a direct sending state in which the output voltage is not controlled and power saving is not performed. Turning off and providing an auxiliary contact to the switch, inputting the auxiliary contact to the control circuit, outputting an on / off signal of the resistor by the control circuit, and monitoring an input signal of the auxiliary contact. The input signal is compared with the on / off signal of the resistor, and if they match, a normal operation is performed. If they do not match, an abnormal signal is output and the power saving device is fixed in a direct sending state. is there.
【０００６】[0006]
【発明の実施の形態】節電装置の制御装置に接続された
スイッチの補助接点の入力信号と、抵抗器のオン・オフ
信号とを比較し、両者が一致すれば通常の動作を行い、
一致しなければ異常信号を出力し前記節電装置を直送状
態に固定する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An input signal of an auxiliary contact of a switch connected to a control device of a power saving device is compared with an on / off signal of a resistor, and if both match, a normal operation is performed.
If they do not match, an abnormal signal is output and the power saving device is fixed in the direct sending state.
【０００７】[0007]
【実施例】本発明に係る節電装置の一実施例を図１及び
図２に示す。以下この図面に基づいて本発明を説明す
る。1 and 2 show an embodiment of a power saving device according to the present invention. Hereinafter, the present invention will be described with reference to the drawings.
【０００８】節電装置１は、トランス２の一次巻線のタ
ップを半導体スイッチＳ1X，Ｓ2X，Ｓ3X，Ｓ1Y，Ｓ2Y，
Ｓ3Yで切り換えることにより出力電圧を制御し、トラン
ス２の二次巻線に接続された負荷機器の消費電力を抑制
する。In the power saving device 1, the taps of the primary winding of the transformer 2 are connected to the semiconductor switches S 1X , S 2X , S 3X , S 1Y , S 2Y ,
By switching at S3Y , the output voltage is controlled, and the power consumption of the load equipment connected to the secondary winding of the transformer 2 is suppressed.
【０００９】この節電装置１において、出力電圧を制御
して節電を行う制御状態と、出力電圧を制御せず節電を
行わない直送状態とを切り換える際に生ずるトランス２
の一次巻線の開放状態を防ぐためにシーケンサ等の制御
回路３に接続されたマグネットコンタクタ等のスイッチ
４のオン・オフにより抵抗器５をオン・オフさせると共
に、スイッチ４に補助接点６を設け、この補助接点６を
制御回路３に入力し、この制御回路３により抵抗器５の
オン・オフ信号を出力すると共に、補助接点６の入力信
号を監視する。In this power saving device 1, a transformer 2 which is generated when switching between a control state in which the output voltage is controlled to save power and a direct transmission state in which the output voltage is not controlled and power saving is not performed.
In order to prevent the open state of the primary winding, a resistor 5 is turned on and off by turning on and off a switch 4 such as a magnet contactor connected to a control circuit 3 such as a sequencer, and an auxiliary contact 6 is provided on the switch 4. The auxiliary contact 6 is input to the control circuit 3, and the control circuit 3 outputs an ON / OFF signal of the resistor 5 and monitors an input signal of the auxiliary contact 6.
【００１０】節電装置１の制御回路３に接続されたスイ
ッチ４の補助接点６の入力信号と、抵抗器５のオン・オ
フ信号とを比較し、両者が一致すれば通常の動作を行
い、一致しなければ異常信号を出力し前記節電装置を直
送状態に固定する。[0010] The input signal of the auxiliary contact 6 of the switch 4 connected to the control circuit 3 of the power saving device 1 is compared with the on / off signal of the resistor 5, and if they match, the normal operation is performed. If not, an abnormal signal is output and the power saving device is fixed in the direct sending state.
【００１１】なお、半導体スイッチの数及びトランスの
一巻線のタップの数は本実施例に限定されるものではな
く、本発明の主旨を逸脱しない範囲において適宜変更可
能である。The number of semiconductor switches and the number of taps of one winding of the transformer are not limited to the present embodiment, but can be changed as appropriate without departing from the gist of the present invention.
【００１２】[0012]
【発明の効果】以上のように本発明に係る節電装置は、
主回路のトランスの一次巻線のタップを半導体スイッチ
で切り換えることにより出力電圧を制御し、前記トラン
スの二次巻線に接続された負荷機器の消費電力を抑制す
る節電装置において、出力電圧を制御して節電を行う制
御状態と、出力電圧を制御せず節電を行わない直送状態
とを前記半導体スイッチで切り換える際に生ずる前記ト
ランスの一次巻線の開放状態を防ぐために制御回路に接
続されたスイッチのオン・オフにより抵抗器をオン・オ
フさせると共に、前記スイッチに補助接点を設け、該補
助接点を前記制御回路に入力し、該制御回路により前記
抵抗器のオン・オフ信号を出力すると共に、前記補助接
点の入力信号を監視し、該入力信号と、前記抵抗器のオ
ン・オフ信号とを比較し、両者が一致すれば通常の動作
を行い、一致しなければ異常信号を出力し前記節電装置
を直送状態に固定することによって、トランスの一次巻
線の開放状態を防ぐための抵抗器のオン・オフ状態が確
実に把握でき、異常があった場合に負荷機器や部品等に
悪影響を及ぼすことがないという効果がある。As described above, the power saving device according to the present invention is
The output voltage is controlled by controlling the output voltage by switching a tap of a primary winding of a transformer of a main circuit with a semiconductor switch and suppressing power consumption of a load device connected to a secondary winding of the transformer. And a switch connected to a control circuit to prevent an open state of the primary winding of the transformer when the semiconductor switch switches between a control state in which power saving is performed and a direct transmission state in which output voltage is not controlled and power saving is not performed. While turning on and off the resistor by turning on and off, providing an auxiliary contact to the switch, inputting the auxiliary contact to the control circuit, and outputting an on / off signal of the resistor by the control circuit, The input signal of the auxiliary contact is monitored, and the input signal is compared with the on / off signal of the resistor. If an abnormal signal is output and the power saving device is fixed to the direct-feed state, the on / off state of the resistor for preventing the open state of the primary winding of the transformer can be reliably grasped. This has the effect of not adversely affecting the load devices and components.
【図１】本発明に係る節電装置の一実施例の説明図であ
る。FIG. 1 is an explanatory diagram of an embodiment of a power saving device according to the present invention.
【図２】本発明に係る節電装置の一実施例の制御回路の
説明図である。FIG. 2 is an explanatory diagram of a control circuit of one embodiment of a power saving device according to the present invention.
【図３】従来の節電装置の説明図である。FIG. 3 is an explanatory diagram of a conventional power saving device.
【図４】従来の節電装置の制御回路の説明図である。FIG. 4 is an explanatory diagram of a control circuit of a conventional power saving device.
１・・・節電装置、２・・・トランス、３・・・制御回
路、４・・・スイッチ、５・・・抵抗器、６・・・補助
接点、Ｓ1X，Ｓ2X，Ｓ3X，Ｓ1Y，Ｓ2Y，Ｓ3Y・・・半導
体スイッチ。1 ... power saving device, 2 ... transformer, 3 ... control circuit, 4 ... switch, 5 ... resistors, 6 ... auxiliary contacts, S 1X, S 2X, S 3X, S 1Y , S2Y , S3Y ... Semiconductor switch.
Claims (1)
半導体スイッチで切り換えることにより出力電圧を制御
し、前記トランスの二次巻線に接続された負荷機器の消
費電力を抑制する節電装置において、出力電圧を制御し
て節電を行う制御状態と、出力電圧を制御せず節電を行
わない直送状態とを前記半導体スイッチで切り換える際
に生ずる前記トランスの一次巻線の開放状態を防ぐため
に制御回路に接続されたスイッチのオン・オフにより抵
抗器をオン・オフさせると共に、前記スイッチに補助接
点を設け、該補助接点を前記制御回路に入力し、該制御
回路により前記抵抗器のオン・オフ信号を出力すると共
に、前記補助接点の入力信号を監視し、該入力信号と、
前記抵抗器のオン・オフ信号とを比較し、両者が一致す
れば通常の動作を行い、一致しなければ異常信号を出力
し前記節電装置を直送状態に固定することを特徴とする
節電装置。1. A power saving device for controlling an output voltage by switching a tap of a primary winding of a transformer of a main circuit with a semiconductor switch to suppress power consumption of a load device connected to a secondary winding of the transformer. A control circuit for preventing an open state of the primary winding of the transformer, which is generated when the semiconductor switch switches between a control state in which the output voltage is controlled to save power and a direct transmission state in which the output voltage is not controlled and power saving is not performed. A resistor is turned on / off by turning on / off a switch connected to the switch, an auxiliary contact is provided on the switch, the auxiliary contact is input to the control circuit, and an on / off signal of the resistor is turned on / off by the control circuit. While monitoring the input signal of the auxiliary contact, the input signal,
An on-off signal of the resistor is compared, and if they match, a normal operation is performed, and if they do not match, an abnormal signal is output and the power saving device is fixed in a direct sending state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26360796A JPH1092661A (en) | 1996-09-11 | 1996-09-11 | Power saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26360796A JPH1092661A (en) | 1996-09-11 | 1996-09-11 | Power saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1092661A true JPH1092661A (en) | 1998-04-10 |
Family
ID=17391897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26360796A Pending JPH1092661A (en) | 1996-09-11 | 1996-09-11 | Power saving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1092661A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388049B1 (en) * | 2000-12-21 | 2003-06-19 | 한양전설(주) | Apparatus and method for power saving auto potential transformer |
| ES2711179A1 (en) * | 2017-10-31 | 2019-04-30 | Vazquez Hernandez Angel | ENERGY OPTIMIZING APPARATUS (Machine-translation by Google Translate, not legally binding) |
-
1996
- 1996-09-11 JP JP26360796A patent/JPH1092661A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388049B1 (en) * | 2000-12-21 | 2003-06-19 | 한양전설(주) | Apparatus and method for power saving auto potential transformer |
| ES2711179A1 (en) * | 2017-10-31 | 2019-04-30 | Vazquez Hernandez Angel | ENERGY OPTIMIZING APPARATUS (Machine-translation by Google Translate, not legally binding) |
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