JPH04171699A - Circuit device for large-scale incandescent lamp load - Google Patents
Circuit device for large-scale incandescent lamp loadInfo
- Publication number
- JPH04171699A JPH04171699A JP2300772A JP30077290A JPH04171699A JP H04171699 A JPH04171699 A JP H04171699A JP 2300772 A JP2300772 A JP 2300772A JP 30077290 A JP30077290 A JP 30077290A JP H04171699 A JPH04171699 A JP H04171699A
- Authority
- JP
- Japan
- Prior art keywords
- current
- breaker
- incandescent lamp
- lamp load
- cutoff
- 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
- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、大規模な白熱灯負荷をもつ回路装置に関し、
ブレーカが白熱灯負荷のインラッシュ電流で不用意に遮
断しないようにするとともに、白熱灯負荷側の短絡電流
から半導体素子を保護するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a circuit device having a large-scale incandescent lamp load.
This prevents the breaker from inadvertently breaking the inrush current of the incandescent lamp load, and protects the semiconductor element from short-circuit current on the incandescent lamp load side.
［従来の技術］
店舗照明・舞台照明等では演色性・スボッ１〜照明性等
を重視するために白熱灯を使用する場合が多い、しかも
多数の白熱灯を用いるため、それらを集中して点灯・調
光制御できるようにサイリスタ等の半導体素子と半導体
素子保護用のブレーカ等を設けた制御盤を設置している
。[Conventional technology] Store lighting, stage lighting, etc. often use incandescent lamps to emphasize color rendering, brightness, etc. Moreover, since a large number of incandescent lamps are used, they must be lit in a concentrated manner.・A control panel equipped with semiconductor elements such as thyristors and breakers to protect the semiconductor elements is installed to enable dimming control.
また、白熱灯負荷は電源投入時のインラッシュ電流が柘
めて大きいため、ブレーカが不用意に遮断しないように
するために、制御盤にソフトスタート回路を併用してイ
ンラッシュ電流を低藏している。In addition, incandescent lamp loads always have a large inrush current when the power is turned on, so in order to prevent the breaker from accidentally shutting off, a soft start circuit is also installed in the control panel to reduce the inrush current. ing.
［発明が解決しようとする課題１
上記従来技術では、ソフトスタート回路を用いているた
め、コストアップになるのはもちろん、電源投入時の白
熱灯負荷の光束の立上りが鈍くなったり、調光レベルを
すばやく変更したい場合等の反応が鈍くなって逢和感を
生しるという問題点があった。[Problem to be Solved by the Invention 1] The above conventional technology uses a soft start circuit, which not only increases costs but also slows down the rise of the luminous flux of the incandescent lamp load when the power is turned on, and reduces the dimming level. There was a problem in that the response was slow when you wanted to quickly change the settings, creating a sense of incompatibility.
これを解決するにはソフトスタート回路を省く必要に迫
られるが、ブレーカに定格電流の大きいものを使用して
、電源投入時のインラッシュ電流でブレーカが不用意に
遮断しないようにしなければならない。To solve this problem, it is necessary to omit the soft start circuit, but it is also necessary to use a breaker with a large current rating to prevent the breaker from inadvertently tripping due to inrush current when the power is turned on.
しかし、このように定格電流の大きなブレーカを使用す
ると、白熱灯負荷側の短絡電流による半導体素子の保護
が不適当になって、半導体素子を破壊しかねない。However, when a breaker with such a large rated current is used, the protection of the semiconductor element from the short-circuit current on the incandescent lamp load side becomes inadequate, and the semiconductor element may be destroyed.
そして、従来のブレーカには、ソフトスタート回路なし
の場合の白熱灯負荷のインラッシュ電流にまるブレーカ
の遮断を防止できるとともに、白熱灯負荷側の短！８電
流から半導体素子を保護できるという２つの特性を両立
できるものが全くなかった。Conventional breakers can prevent the breaker from tripping due to the inrush current of the incandescent lamp load when there is no soft start circuit, and can prevent short circuits on the incandescent lamp load side. There has never been anything that can satisfy the two characteristics of being able to protect semiconductor elements from 8 currents.
従って、本発明は、ブレーカの特性を新たに検討し直し
て、白熱灯負荷のインラッシュ電流によるブレーカの遮
断を防止するとともに、白熱灯負荷側の短絡電流から半
導体素子を保護するという目的を兼ね備えた大規模白熱
灯負荷用回路装置を提供する。Therefore, the present invention aims to prevent the breaker from being cut off due to the inrush current of the incandescent lamp load by reconsidering the characteristics of the breaker, and also to protect the semiconductor elements from the short circuit current on the incandescent lamp load side. The present invention provides a circuit device for a large-scale incandescent lamp load.
［課題を解決するだめの手段］
本発明は、電源と白熱灯負荷との間に、サーマル遮断機
構と電磁遮断機＋１４を（７１用したブレーカと、半導
体素子とを備え、ブレーカの電磁遮断機構による遮断電
流をブレーカの定格電流の７〜９倍に設定して、上記遮
断電流を白熱灯負荷のインラッシュ電流より大きくする
とともに、半導体素子の最大耐サージ電流同等以下とし
た大規模白熱灯負荷用回路装置を構成する。[Means for Solving the Problems] The present invention includes a breaker using a thermal cutoff mechanism, an electromagnetic cutoff +14 (71), and a semiconductor element between a power source and an incandescent lamp load. By setting the breaking current to 7 to 9 times the rated current of the breaker, the above-mentioned breaking current is made larger than the inrush current of the incandescent lamp load, and the large-scale incandescent lamp load is made to be equal to or less than the maximum surge current of the semiconductor element. configuring the circuit device for
［作 用］
一般にブレーカは、過電流領域ではバイメタルにまるサ
ーマル遮断機構で比較的長い時間で遮断し、短絡電流領
域ではソレノイドによる電磁遮断機構で瞬間的に遮断す
る。[Function] In general, a breaker uses a bimetal-enclosed thermal cutoff mechanism to shut off the circuit over a relatively long period of time in an overcurrent region, and instantaneously shuts off the circuit in a short-circuit current region using a solenoid-based electromagnetic cutoff mechanism.
本発明では、電磁遮断機構による瞬断領域に着目し、ブ
レーカの電磁遮断機構による遮断電流をブレーカの定格
電流の７〜９倍に設定した。In the present invention, we focused on the instantaneous interruption region caused by the electromagnetic cutoff mechanism, and set the cutoff current by the electromagnetic cutoff mechanism of the breaker to 7 to 9 times the rated current of the breaker.
このようにして、遮断電流を白熱灯負荷のインラッシュ
電流より大きくするとともに、半導体素子の最大耐サー
ジ電流同等以下としたことによって、白熱灯負荷のイン
ラッシュ電流によるブレーカの遮断を防止できるととも
に、白熱灯負荷側の短絡電流から半導体素子を保護でき
るという２つの作用を両立している。In this way, by making the breaking current larger than the inrush current of the incandescent lamp load and equal to or less than the maximum withstand surge current of the semiconductor element, it is possible to prevent the breaker from tripping due to the inrush current of the incandescent lamp load. It achieves two functions: it can protect the semiconductor element from short-circuit current on the incandescent lamp load side.
［実施例］ 本発明の実ｂｍ例を図面を参照して説明する。[Example] An actual example of the present invention will be described with reference to the drawings.
本実施例は、電源１と白熱灯負荷２との間に、点線で囲
んで示す制御ｇＨ内の構成として、サーマル遮断機構と
電磁遮断機構を併用したブレーカ３と、雑音防止コイル
４と、半導体素子５，５とを備える。In this embodiment, between a power supply 1 and an incandescent lamp load 2, a breaker 3 using both a thermal cutoff mechanism and an electromagnetic cutoff mechanism, a noise prevention coil 4, and a semiconductor It is provided with elements 5, 5.
半導体素子５は例えばサイリスタであり、これを逆並列
接続している。もちろん、トライフックを使用すれば１
個のものでよいが、現時点ではコスト・耐サージ電流面
からサイリスタを選択する方かまい場合が多い。白熱灯
負荷２は例えば、多数の白熱灯を一括したＫＷクラスの
大規模のものである。また、半導体素子５はそのゲート
５ａが図示されない位相制御回路によって位相制御され
て、白熱灯負荷２を調光制御できる。The semiconductor element 5 is, for example, a thyristor, which are connected in antiparallel. Of course, if you use a try hook, 1
However, at present, it is often better to choose a thyristor from the viewpoint of cost and surge current resistance. The incandescent lamp load 2 is, for example, a large-scale KW class lamp that includes a large number of incandescent lamps. Further, the gate 5a of the semiconductor element 5 is phase-controlled by a phase control circuit (not shown), so that the incandescent lamp load 2 can be dimmed and controlled.
本発明では、ブレーカ３の電磁遮断機構による遮断電流
をブレーカ３の定格電流の７〜９ （ｇに設定している
。In the present invention, the interrupting current by the electromagnetic interrupting mechanism of the breaker 3 is set to 7 to 9 (g) of the rated current of the breaker 3.
一般りこブレーカは第２図の曲線Ａに示すように、過電
流領域（左側）ではバイメタルによるサーマル遮断機構
で比較的長い時間で遮断し、短絡電流領域（右側）では
電磁遮断機構で瞬間的に遮断する。そして、電磁遮断機
構にまる遮断電流（＠小側）は例えば直線ａで示すまう
に定格電流の１０倍である。As shown in curve A in Figure 2, the general Riko breaker uses a bimetal thermal cutoff mechanism to shut off the circuit over a relatively long period of time in the overcurrent region (left side), and instantaneously cuts it off in the short circuit current region (right side) with the electromagnetic cutoff mechanism. Cut off. The breaking current (@small side) flowing through the electromagnetic breaking mechanism is, for example, 10 times the rated current as shown by the straight line a.
本発明では、電磁遮断機構による瞬断領域に着目し、第
２図の曲線Ｂで示すブレーカ３の電磁遮断機構にまる遮
断電流（直線部分ｂ）をブレーカ３の定格電流の７〜９
倍に設定した。In the present invention, focusing on the instantaneous interruption area caused by the electromagnetic cutoff mechanism, the breaking current (linear portion b) of the electromagnetic cutoff mechanism of the breaker 3 shown by curve B in FIG.
set to double.
これは例えば、電磁遮断機構をなすソレノイドのコイル
ターン数を調整することで達成できる。This can be achieved, for example, by adjusting the number of coil turns of a solenoid that forms the electromagnetic cutoff mechanism.
また、ソレノイドコアの透磁率を変更して対応してもよ
い。Further, the magnetic permeability of the solenoid core may be changed to cope with the problem.
このようにして、ブレーカ３の電磁遮断機構による遮断
電流を白熱灯負荷２のインラッシュ電流（イ）より大き
くするとともに、半導体素子５の最大耐サージ電流（ロ
）同等以下としたことによって、白熱灯負荷２のインラ
ッシュ電流によるブし一力３の遮断を防止できるととも
に、白熱灯負荷２側の短絡電流から半導体素子５を保護
できるという２つの作用を両立した。In this way, by making the breaking current by the electromagnetic interrupting mechanism of the breaker 3 larger than the inrush current (a) of the incandescent lamp load 2, and making it equal to or less than the maximum surge current (b) of the semiconductor element 5, it is possible to This achieves two functions: it is possible to prevent the blower 3 from being cut off due to the inrush current of the lamp load 2, and it is also possible to protect the semiconductor element 5 from short-circuit current on the incandescent lamp load 2 side.
なお、参考までに示した曲線Ｃは、ソフトスタート回路
有りの場合に適したブレーカ特性で、このブレーカの遮
断電流はソフトスタート回路有りの場合のインラッシュ
電流（ハ）、！り大きく、この場合に使用される半導体
素子の最大耐サージ電流（ニ）同等以下に設定される。Curve C shown for reference is a breaker characteristic suitable for a case with a soft start circuit, and the breaking current of this breaker is an inrush current (c) with a soft start circuit. is set to be equal to or lower than the maximum withstand surge current (d) of the semiconductor element used in this case.
［発明の効果］
以」二のとおり本発明の大規模白熱灯負荷用回路装置に
よれば、ブレーカの電磁遮断機構による遮断電流をブレ
ーカの定格電流の７〜９倍に設定して、」二記遮断電流
を白熱灯負荷のインラッシュ電流より大きくするととも
に、半導体素子の最大耐サージ電流同等以下として、白
熱灯負荷のインク・ンシュ電流によるブレーカの遮断を
防止できるとともに、白熱灯負荷側の短絡電流から半導
体素子を保護できるという２つの効果を両立している。[Effects of the Invention] As described in "2" below, according to the large-scale incandescent lamp load circuit device of the present invention, the breaking current by the electromagnetic interrupting mechanism of the breaker is set to 7 to 9 times the rated current of the breaker, By making the breaking current larger than the inrush current of the incandescent lamp load and equal to or less than the maximum withstand surge current of the semiconductor element, it is possible to prevent the breaker from tripping due to the inrush current of the incandescent lamp load, and to prevent short circuits on the incandescent lamp load side. It has two effects: it can protect semiconductor elements from electric current.
第１図は本発明の実施例を示す回路ブロック図、第２図
はブレーカの特性曲線図である。
１・・・電源、２・・白熱灯負荷、３・・・ブレーカ、
５・・・半導体素子。FIG. 1 is a circuit block diagram showing an embodiment of the present invention, and FIG. 2 is a characteristic curve diagram of a breaker. 1...Power supply, 2...Incandescent lamp load, 3...Breaker,
5...Semiconductor element.
Claims (1)
断機構を併用したブレーカと、半導体素子とを備え、ブ
レーカの電磁遮断機構による遮断電流をブレーカの定格
電流の７〜９倍に設定して、上記遮断電流を白熱灯負荷
のインラッシュ電流より大きくするとともに、半導体素
子の最大耐サージ電流同等以下とした大規模白熱灯負荷
用回路装置。A breaker that uses both a thermal cutoff mechanism and an electromagnetic cutoff mechanism and a semiconductor element are installed between the power supply and the incandescent lamp load, and the cutoff current due to the breaker's electromagnetic cutoff mechanism is set to 7 to 9 times the rated current of the breaker. A circuit device for a large-scale incandescent lamp load in which the above-mentioned breaking current is made larger than the inrush current of the incandescent lamp load, and is equal to or less than the maximum withstand surge current of a semiconductor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2300772A JPH04171699A (en) | 1990-11-05 | 1990-11-05 | Circuit device for large-scale incandescent lamp load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2300772A JPH04171699A (en) | 1990-11-05 | 1990-11-05 | Circuit device for large-scale incandescent lamp load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04171699A true JPH04171699A (en) | 1992-06-18 |
Family
ID=17888905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2300772A Pending JPH04171699A (en) | 1990-11-05 | 1990-11-05 | Circuit device for large-scale incandescent lamp load |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04171699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008140626A (en) * | 2006-11-30 | 2008-06-19 | Toshiba Lighting & Technology Corp | Light control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755733A (en) * | 1980-09-19 | 1982-04-02 | Hitachi Ltd | Motor circuit protecting device |
| JPS5923291B2 (en) * | 1979-01-23 | 1984-06-01 | テラ・ゲゼルシヤフト・フユ−ル・パテントフエルヴエルツング・ミツト・ベシユレンクテル・ハフツング | Injection solution containing amino acids and inorganic salts |
-
1990
- 1990-11-05 JP JP2300772A patent/JPH04171699A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5923291B2 (en) * | 1979-01-23 | 1984-06-01 | テラ・ゲゼルシヤフト・フユ−ル・パテントフエルヴエルツング・ミツト・ベシユレンクテル・ハフツング | Injection solution containing amino acids and inorganic salts |
| JPS5755733A (en) * | 1980-09-19 | 1982-04-02 | Hitachi Ltd | Motor circuit protecting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008140626A (en) * | 2006-11-30 | 2008-06-19 | Toshiba Lighting & Technology Corp | Light control device |
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